DUNLOP SPORTS CO., LTD. Patent applications |
Patent application number | Title | Published |
20160136492 | GRIP FOR SPORTING GOODS AND GOLF CLUB - An object of the present invention is to provide a grip for sporting goods excellent in tensile strength and having a light weight. The present invention provides a grip for sporting goods comprising a cylindrical portion composed of a cylindrical inner layer and a cylindrical outer layer covering the cylindrical inner layer, wherein the cylindrical inner layer is a porous rubber layer or a porous resin layer, and the cylindrical outer layer is formed from a rubber composition containing an acrylonitrile-butadiene based rubber. | 05-19-2016 |
20160136491 | GOLF CLUB GRIP AND GOLF CLUB - An object of the present invention is to provide a golf club grip showing a good feeling both at hitting and at waggling. The present invention provides a golf club grip comprising a cylindrical portion for inserting a shaft, wherein the cylindrical portion has a compression strain in a range from 46% to 55% at a compression stress of 20 kg/cm | 05-19-2016 |
20160136484 | GOLF BALL - An object of the present invention is to provide a golf ball showing increased controllability on approach shots for less than 40 yards and showing excellent shot feeling. In the inventive golf ball, the paint film is formed from a curing type paint composition including: a base material containing a polyrotaxane, and a curing agent containing a polyisocyanate, and wherein the polyrotaxane has a cyclodextrin, a linear molecule included in a cyclic structure of the cyclodextrin in a manner of piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both ends of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C | 05-19-2016 |
20160129321 | GOLF CLUB HEAD - A putter-type golf club head includes a main body. The main body includes a forward end, a rearward end opposite the forward end, a bottom portion, a top portion opposite the bottom portion, and a male-type hosel component defining a longitudinal axis that is forwardly canted relative to vertical. A face component is secured to the forward end of the main body. The face component includes a first element formed of a resilient material and a second element formed of a rigid material that is secured to the first element. A striking face generally defines a virtual striking face plane and is at least partially formed by the face component. | 05-12-2016 |
20160121183 | GOLF CLUB GRIP AND GOLF CLUB - An object of the present invention is to provide a golf club grip comprising a layer containing a polar rubber and a layer containing a nonpolar rubber, and excellent in tensile strength. The present invention provides a golf club grip comprising a polar rubber layer and a nonpolar rubber layer, wherein the polar rubber layer is formed from a rubber composition containing a base rubber including a polar rubber in an amount of 50 mass % or more, the nonpolar rubber layer is formed from a rubber composition containing a base rubber including a nonpolar rubber in an amount of 50 mass % or more, the polar rubber layer and the nonpolar rubber layer are laminated via an interlayer formed from an interlayer composition containing an olefin rubber. | 05-05-2016 |
20160114219 | GOLF BALL - A golf ball | 04-28-2016 |
20160096079 | GOLF BALL - An object of the present invention is to provide a golf ball showing improved durability by improving adhesion to a constituent member comprising a polyurethane in the golf ball. The present invention provides a golf ball comprising a center and n envelope layers (n is a natural number of 1 or more) covering the center, wherein at least one envelope layer is a polyurethane envelope layer comprising a polyurethane as a principal component, and the polyurethane envelope layer and a constituent member adjacent to the polyurethane envelope layer are adhered with an adhesive resin composition, and wherein the adhesive resin composition comprises a base material including a urethane polyol and an epoxy resin, and a curing agent including a polyamine compound, and a content of the urethane polyol in the base material is 5 mass % or more and less than 40 mass %. | 04-07-2016 |
20160096076 | GOLF BALL - A golf ball | 04-07-2016 |
20160074718 | GOLF CLUB - A club includes a head, a shaft, and a grip. A club length L | 03-17-2016 |
20160067567 | GOLF CLUB - A golf club | 03-10-2016 |
20160067566 | GOLF CLUB - A golf club | 03-10-2016 |
20160067565 | GOLF CLUB - A golf club | 03-10-2016 |
20160067564 | GOLF CLUB - A golf club | 03-10-2016 |
20160059092 | GOLF CLUB - The club length of a golf club is 43 inches or greater and 48 inches or less. A club inertia moment Ix about a swing axis is equal to or less than 6.90×10 | 03-03-2016 |
20160059091 | GOLF CLUB HEAD - Provided is a golf club head having a reduced weight while also preventing degradation in the ball hitting sound. The golf club head includes a head body that is a hollow structure, and a rib that rises from an inner surface of the head body. An opening having a non-circular shape is formed in a side surface of the rib. Note that the opening referred to here may be a through-hole or an opening that has a bottom. | 03-03-2016 |
20160059082 | GOLF BALL - An object of the present invention is to provide a golf ball showing excellent impact durability. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the golf ball comprises a reinforcing layer containing a polyvinyl acetal resin on the surface of the spherical core. | 03-03-2016 |
20160059081 | GOLF BALL - A golf ball | 03-03-2016 |
20160051865 | GOLF CLUB - There is provided a golf club including a head and a shaft detachably attached to the head, and having excellent reliability. This golf club includes a head, a shaft, a sleeve, and a screw. The sleeve is fixed to a tip part of the shaft. A head has a head body and an engaging member. The engaging member is fixed to the head body. Rotation of the sleeve to the head is regulated based on engagement between the sleeve and the engaging member. Withdrawal of the sleeve from the head is regulated based on connection between the sleeve and the screw. The screw is a multiple-thread screw. | 02-25-2016 |
20160030803 | GOLF CLUB FITTING APPARATUS - Provided is a fitting apparatus that accurately and objectively determines an optimal swingability index, which is a swingability index of a golf club suited to a golfer. The fitting apparatus is provided with an acquisition unit, a calculation unit, and a determination unit. The acquisition unit acquires a measurement value obtained by measuring a swing action of a test club by the golfer with a measurement device. The calculation unit calculates a swing index indicating a feature amount of the swing action, based on the measurement value. The determination unit determines the optimal swingability index, according to a magnitude of the swing index. | 02-04-2016 |
20160016056 | GOLF CLUB SHAFT | 01-21-2016 |
20160001144 | GOLF CLUB HEAD | 01-07-2016 |
20150375068 | GOLF CLUB HEAD - A golf club head including a cup face is provided. The cup face includes a face portion and a rising portion extending from a peripheral edge of the face portion on a rear surface side of the face portion. The peripheral edge of the face portion includes a top line on a top side and a sole line on a sole side. The face portion includes a central region and peripheral regions. The central region includes a face center, extends from the sole line to the top line while being inclined from the sole side to the top side along a direction from the heel side toward the toe side, and does not reach the toe-side edge point. The peripheral regions are thinner than the central region and surround the central region on the toe side and the heel side. | 12-31-2015 |
20150375067 | GOLF CLUB AND GOLF CLUB SET - A golf club in a golf club set has a shaft and a golf club head which includes a crown portion, a face portion, a sole portion, and a hosel portion to which the shaft is attached. Among the golf clubs included in the golf club set, in at least a pair of golf clubs having adjacent club numbers, the length of the face portion, in the face-back direction in a plan view, of the golf club having a higher club number is larger than that of the golf club having a lower club number. The difference between the lengths is ΔA mm. In the golf clubs, the face progression of the golf club having the higher club number is larger than the face progression of the golf club having the lower club number, and the difference between the face progressions is ΔB mm. ΔA and ΔB satisfy (⅓)×ΔA≦ΔB≦(⅔)×ΔA. | 12-31-2015 |
20150375066 | GOLF CLUB HEAD AND METHOD OF PROVIDING GOLF CLUB HEAD - The golf club head of this invention includes: a head body having a crown portion, face portion, and sole portion; at least one weight configured to be detachably attached to the sole portion; and a cover kit configured to be detachably attached to the sole portion. Out of a cover provided with a decoration and configured to cover at least a portion of the sole portion, and at least one auxiliary weight configured to be attached to the cover, the cover kit includes at least the cover. The weight of the cover kit is the same as the weight of the weight. The sole portion is configured to selectively be in one of a first mode in which the weight is attached, and a second mode in which the cover kit is attached. | 12-31-2015 |
20150375064 | GOLF CLUB - The golf club includes a shaft, a golf club head equipped with a face portion and a hosel portion having an attachment hole for insertion of the shaft, and a support member attached to an opening portion of the attachment hole and formed into a cylindrical shape covering the outer circumferential surface of the shaft. The shaft includes a hollow shaft body and a sheet-like reinforcing layer constituted by low-elasticity fibers and arranged in the shaft body, the reinforcing layer being arranged at a position corresponding to at least the support member. The attachment hole includes a support portion having an inner diameter for supporting the outer circumferential surface of the shaft, and an engaging portion continuous with the support portion, having a larger inner diameter than the support portion, and open to the outside in an opening of the attachment hole. | 12-31-2015 |
20150375059 | GOLF BALL - An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball having a low hardness part having a hardness in a range from 5 to 40 in Shore D hardness or a lowest hardness point in a core hardness distribution in a region located at a distance from 36.0% to 65.0% of a radius of the golf ball from a center point of the golf ball. | 12-31-2015 |
20150375058 | GOLF BALL - A golf ball | 12-31-2015 |
20150375056 | MULTI-PIECE GOLF BALL - An object of the present invention is to provide a golf ball showing low spin rate on driver shots and high spin rate on approach shots. The present invention provides a multi-piece golf ball comprising a spherical center, at least two envelope layers covering the spherical center, and a cover covering the envelope layers, wherein the envelope layers comprise at least a first envelope layer covering the spherical center, and a second envelope layer covering the first envelope layer, a material hardness (H0) of the spherical center, a material hardness (H1) of the first envelope layer, and a material hardness (H2) of the second envelope layer satisfy an equation of H0>H1>H2, and the material hardness (H2) of the second envelope layer is lowest among the material hardness of the center constituent material and material hardness of envelope layer constituent materials. | 12-31-2015 |
20150375055 | GOLF BALL - An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball comprising a spherical center, at least two envelope layers covering the spherical center, and a cover covering the envelope layers, wherein an envelope layer (Es | 12-31-2015 |
20150375054 | GOLF BALL - A golf ball | 12-31-2015 |
20150375053 | GOLF BALL - A golf ball | 12-31-2015 |
20150375052 | GOLF BALL - An object of the present invention is to provide a golf ball excellent in hitting durability. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein at least a part of the spherical core is formed from a rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (x) an olefin-alkyl (meth)acrylate copolymer, and a content of (x) the olefin-alkyl (meth)acrylate copolymer in the rubber composition ranges from 0.5 part by mass to 7.0 parts by mass with respect to 100 parts by mass of (a) the base rubber. | 12-31-2015 |
20150375051 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - An object of the present invention is to provide a golf ball exhibiting an excellent shot feeling and resilience, and a constituent material thereof. The present invention provides a golf ball resin composition having a bending stiffness (M | 12-31-2015 |
20150375049 | GOLF BALL - A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): 1.320≦L | 12-31-2015 |
20150375047 | GOLF BALL - A golf ball | 12-31-2015 |
20150367207 | GOLF CLUB AND GOLF CLUB SET - A golf club set includes golf clubs with different club numbers and loft angles. Each golf club head of golf clubs includes a crown portion, a face portion, and a sole portion. The sole portion includes a front region and a rear region, the front region being arranged on the face side, and the rear region being arranged on the back side. The front region has a flat front surface, and the rear region has a curved rear surface continuous with the front region. Among the golf clubs included in the golf club set, out of at least a pair of golf clubs having adjacent club numbers, the radius of curvature of the rear surface of the golf club having the higher club number is smaller than the radius of curvature of the rear surface of the golf club having the lower club number. | 12-24-2015 |
20150367199 | GOLF CLUB HEAD AND MANUFACTURING METHOD FOR THE SAME - A golf club head including a face surface for hitting a ball is provided. The face surface has a plurality of score lines, a first groove pattern, and a second groove pattern. The score lines extend in a toe-heel direction. The first groove pattern is made up of first micro grooves extending along a plurality of first virtual lines. The second groove pattern is made up of second micro grooves extending along a plurality of second virtual lines intersecting the first virtual lines. At least one out of the first micro grooves and the second micro grooves extend as dashed lines interrupted in a vicinity of intersections between the first virtual lines and the second virtual lines, such that the first micro grooves and the second micro grooves do not overlap each other. | 12-24-2015 |
20150367188 | GOLF CLUB - A golf club according to one aspect of the present invention includes a shaft, a golf club head including a hosel containing a hole to attach the shaft, and a sleeve system including a body attached to a tip of the shaft and inserted together with the shaft into the hole of the hosel and an adaptor attached to the body so as to enable an adjustment of an axis-directional position with respect to the body and engaging with an upper end of the hosel. | 12-24-2015 |
20150367187 | GOLF CLUB - A golf club includes a shaft, a golf club head including a hosel having an aperture to which the shaft being secured, a securing member configured in a cylindrical shape to cover the shaft, the securing member including a first securing portion detachably fitted to the aperture of the hosel, and an insert member configured in a cylindrical shape to cover the shaft, the insert member including a second securing portion being detachably attachable to the aperture of the hosel and a third securing portion being detachably attachable to the first securing portion of the securing member. The golf club is capable of adopting a first mode of securing the first securing portion to the hosel, and a second mode of securing the insert member to the hosel and securing the first securing portion to the third securing portion of the insert member. | 12-24-2015 |
20150367174 | GOLF SWING ANALYSIS APPARATUS AND GOLF CLUB FITTING APPARATUS - A golf swing analysis apparatus for analyzing a swing action of a golf club is provided. The golf swing analysis apparatus comprises an acquisition unit configured to acquire a measurement value obtained by measuring the swing action using a measurement device; a grip behavior derivation unit configured to derive a behavior of a grip of the golf club that occurs during the swing action, based on the measurement value; and a shoulder behavior derivation unit configured to derive a behavior of a pseudo shoulder of a golfer that occurs during the swing action, based on the behavior of the grip. | 12-24-2015 |
20150360092 | GOLF CLUB | 12-17-2015 |
20150343279 | GOLF CLUB - A golf club | 12-03-2015 |
20150328507 | GOLF CLUB | 11-19-2015 |
20150322245 | GOLF CLUB GRIP AND GOLF CLUB - An object of the present invention is to provide a golf club grip excellent in grip performance in a wet condition. The present invention provides a golf club grip formed from a rubber composition comprising a base rubber and a crosslinking agent, wherein the base rubber comprises a hydrogenated acrylonitrile-butadiene rubber and/or a carboxyl-modified acrylonitrile-butadiene rubber. | 11-12-2015 |
20150314174 | GOLF CLUB HEAD - A sole surface f | 11-05-2015 |
20150290900 | FIBER-REINFORCED EPOXY RESIN MATERIAL, PREPREG AND, TUBULAR BODY MADE OF FIBER-REINFORCED EPOXY RESIN MATERIAL - An object of the present invention is to provide a novel fiber-reinforced epoxy resin material having improved strength. The fiber-reinforced epoxy resin material of the present invention comprises a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises a novolac type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone. | 10-15-2015 |
20150290502 | IRON TYPE GOLF CLUB HEAD - Provided is an iron type golf club head having an undercut cavity. The iron type golf club head comprises a face portion ( | 10-15-2015 |
20150283434 | GOLF CLUB HEAD - [Object] To provide a golf club head having various performances improved by a disposal of a rib. | 10-08-2015 |
20150273290 | GOLF CLUB HEAD - Provided is a golf club head which produces an improved hitting sound obtained without impairing the appearance of the sole section. A golf club head having a hollow portion (i) formed therein has a sole portion ( | 10-01-2015 |
20150273289 | GOLF CLUB HEAD - To provide a golf club head excellent in hitting sound and flight distance performance. A head includes a face, a crown and a sole. The crown has an inner surface on which grid-form rib is provided. When a region on which the grid-form rib is provided is defined as a rib region, an additional rib is further provided on the rib region. The additional rib is positioned on a heel side relative to a face center. Preferably, the grid-form rib is formed by intersection of first ribs extending in a substantially toe-heel direction and second ribs extending in a substantially face-back direction. Preferably, the additional rib is sloped to be closer to a back side as approaching to the heel side. | 10-01-2015 |
20150273286 | GOLF CLUB HEAD | 10-01-2015 |
20150273278 | GOLF BALL - An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a constituting member formed from a rubber composition containing (a) a base rubber, (b) an α, β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) an crosslinking initiator, wherein (b) the α, β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or the metal salt thereof meets the following conditions (1) and (2) in a volume based distribution, when measuring a particle size thereof with a laser diffraction particle size analyzer;
| 10-01-2015 |
20150273277 | GOLF BALL - An object of the present invention is to provide a golf ball excellent in shot feeling, flight distance and durability. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a core rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (x) a crosslinked rubber powder; (x) the crosslinked rubber powder contains (x1) soft particles with a hardness difference (Hs−Hp) between a particle hardness (Hp) of the soft particles and a surface hardness (Hs) of the spherical core being 20 or more in JIS-C hardness, and a hardness difference (Hs5−Hp) between the particle hardness (Hp) of the soft particles and a hardness (Hs5) at 5 mm point inside the surface of the spherical core being 15 or more in JIS-C hardness; and the core rubber composition contains (x1) the soft particles in an amount of 1.0 mass % or more. | 10-01-2015 |
20150273276 | GOLF BALL - An object of the present invention is to provide a golf ball striking a good balance between a flight distance on driver shots and a spin rate on approach shots, and excellent in stain resistance and a shot feeling. The present invention provides a golf ball comprising an intermediate layer, a cover, and a paint film, wherein a base resin of the paint film is a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol including a polyether diol with a number average molecular weight ranging from 800 to 3000 as a constituent component, and the golf ball satisfies the following requirements; | 10-01-2015 |
20150265887 | GOLF CLUB HEAD - A golf club head has a hollow structure composed of a head main body including a face portion provided with an opening and a face member fitted in the opening and welded to the head main body. The welded part between the face member and the head main body includes a crown-side welded part positioned substantially at the upper edge or alternatively spaced apart from the upper edge toward the lower edge by a certain distance, and a sole-side welded part spaced apart from the lower edge toward the upper edge by a certain distance which is more than zero and more than the distance. The face portion is provided between the sole-side welded part and the lower edge with a sole-side thin area whose thickness is less than a thickness of the face member. | 09-24-2015 |
20150246985 | GOLF BALL RESIN COMPOSITION AND GOLF BALL USING THE SAME - An object of the present invention is to provide a golf ball resin composition that comprises an ionomer resin with an excellent resilience and fluidity. Another object of the present invention is to provide a golf ball excellent in the resilience without lowering the durability significantly in a golf ball using the ionomer resin for the intermediate layer. The present invention provides a golf ball resin composition comprising, 100 parts by mass of (A) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer composed of ethylene, α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and α,β-unsaturated carboxylic acid ester, and from 25 parts to 100 parts by mass of (B) a metal salt of a fatty acid having 18 to 30 carbon atoms. The golf ball of the present invention is not limited, as long as it comprises a constituent member formed from the golf ball resin composition of the present invention. | 09-03-2015 |
20150246268 | GOLF CLUB HEAD - [Object] It is an object of the present invention to provide a golf club head being lightweight and having a high strength. | 09-03-2015 |
20150238827 | WOOD-TYPE GOLF CLUB HEAD - A wood golf club head, which is provided therein with a hollow section and for which a crown section that forms the upper surface of the head is formed from a metal material. The crown section includes a heel portion; a toe portion with a smaller thickness than the heel portion; and a thickness transition section provided between the heel portion and the toe portion, the thickness of which decreases gradually from the heel portion to the toe portion. In the top view of a reference state in which the head is placed on a horizontal plane with a specified lie angle and loft angle, the thickness transition section extends as a smooth curve that protrudes towards the toe side. | 08-27-2015 |
20150224375 | GOLF CLUB SHAFT - [Object] To provide a golf club shaft that can provide a moderate rigidity and enhance an impact strength. | 08-13-2015 |
20150224371 | GOLF CLUB SHAFT FITTING METHOD - A fitting method, of a shaft of a golf club, for selecting a shaft having a torque matching a golfer based on a swing of the golfer. The method includes the steps of obtaining measurement values from a sensor attached to a grip of the golf club and capable of measuring angular velocities about three axes when a golf ball is hit by the golf club; obtaining a predetermined index value for the angular velocities quantified from the measurement values; and selecting a shaft matching the golfer from among multiple shafts whose torques have been measured in advance, based on a relationship established through test-hitting performed in advance between the index value and a torque of a shaft. | 08-13-2015 |
20150224370 | RACKET - A racket includes a head | 08-13-2015 |
20150183916 | RESIN COMPOSITION FOR GOLF BALL AND GOLF BALL - The present invention provides resin compositions for golf balls which have excellent flexibility, fluidity, and resilience, and golf balls formed from the resin compositions. The present invention relates to a resin composition for golf balls including a polymer that contains a diene polymer moiety and a carboxylic acid-based moiety wherein carboxyl groups derived from the carboxylic acid-based moiety are neutralized. | 07-02-2015 |
20150182808 | GOLF BALL - A golf ball includes a core, a mid layer, and a cover. The core includes an inner core, a mid core, and an outer core. The mid layer includes an inner mid layer and an outer mid layer. A hardness H(C) is equal to or greater than a hardness H(B). A hardness H(E) is equal to or greater than a hardness H(D). An angle α is calculated by (Formula 1). An angle β is calculated by (Formula 2). The angle α is 0° or greater. A difference (α−β) is 0° or greater. A hardness Hm2 of the outer mid layer is greater than a hardness Hm1 of the inner mid layer. | 07-02-2015 |
20150182806 | GOLF BALL AND METHOD FOR PRODUCING THE SAME - A golf ball that enhances flight performance is provided. A golf ball according to the present invention includes a spherical core, at least one cover member that covers the core, and a coating layer that covers the cover member configuring the outermost layer. A plurality of dimples are formed in the cover member configuring the outermost layer. Roughness is formed on a surface of the coating layer such that a relationship between a drag coefficient CD1 and a lift coefficient CL1 when a golf ball is hit with a Reynolds number of 1.771×10 | 07-02-2015 |
20150182805 | GOLF BALL AND METHOD FOR PRODUCING THE SAME - A golf ball that enhances flight performance is provided. A golf ball according to the present invention includes a spherical core, at least one cover member that covers the core, and a coating layer that covers the cover member configuring the outermost layer. A plurality of dimples are formed in the cover member configuring the outermost layer. The thickness of the coating layer is 5.0 μm or more. Roughness is formed on the surface of the coating layer after coating the cover member configuring the outermost layer. The maximum height Rz and the arithmetic average roughness Ra of the surface of the coating layer satisfy the relationship Rz≧Ra×6.0. | 07-02-2015 |
20150182804 | GOLF BALL - An object of the present invention is to provide a golf ball which shows a high spin rate on approach shots and an excellent stain resistance. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein a base resin constituting the paint film is a polyurethane obtained by a reaction between a polyol composition and a polyisocyanate composition, the polyol composition contains a urethane polyol including a polyether diol having a number average molecular weight from 800 to 3000 as a constituent component, the paint film has a 10% elastic modulus of 100 kgf/cm | 07-02-2015 |
20150182803 | GOLF BALL - A golf ball includes a core, a mid layer, and a cover. The core includes an inner core, a mid core, and an outer core. The mid layer includes an inner mid layer and an outer mid layer. A hardness H(C) is equal to or greater than a hardness H(B). A hardness H(E) is equal to or greater than a hardness H(D). An angle α is calculated by (Formula 1). An angle β is calculated by (Formula 2). The angle α is 0° or greater. A difference (α−β) is 0° or greater. A hardness Hm2 of the outer mid layer is less than a hardness Hm1 of the inner mid layer. A hardness Hc of the cover is less than the hardness Hm2. | 07-02-2015 |
20150174455 | GOLF BALL - A golf ball | 06-25-2015 |
20150157903 | GOLF CLUB HEAD - A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity. | 06-11-2015 |
20150151176 | GOLF CLUB HEAD - A wood-type golf club head includes a main body and a striking wall associated with the main body. The striking wall has a striking face including a face center, a first imaginary plane tangent to the face center, and a rear surface opposite the striking face. In a second imaginary plane perpendicular to the first imaginary plane and passing through the face center, the striking face includes a first point associated with a maximum thickness, t | 06-04-2015 |
20150151170 | GOLF CLUB - A golf club | 06-04-2015 |
20150126302 | GOLF CLUB HEAD - A hollow golf club head comprises a face portion with a face for hitting a ball on its front and a crown portion forming a top surface of the head, wherein the head comprises a face member including the face portion and made of a metallic material and a crown member attached to the face member to form the crown portion at least partially, the crown member includes a first member made of a metal material and a second member made of a fiber reinforced resin for supporting the first member so that the first member does not directly contact with the face member, the head has a primary natural frequency of from 3800 to 6500 Hz and an antinode when the head vibrates in the primary natural mode appears in the first member. | 05-07-2015 |
20150119170 | GOLF BALL - A golf ball includes a spherical core and a cover. The core includes an inner core, a mid core, and an outer core. A hardness H(C) is equal to or greater than a hardness H(B). A hardness H(E) is equal to or greater than a hardness H(D). An angle α is calculated by (Formula 1) from a thickness Y (mm) of the mid core, the hardness H(C), and the hardness H(D). An angle β is calculated by (Formula 2) from a thickness Z (mm) of the outer core, the hardness H(E), and the hardness H(F). Each of the angle α and a difference (α−β) between the angles α and β is equal to or greater than 0°. The golf ball has excellent flight performance upon a shot with a driver. | 04-30-2015 |
20150119168 | GOLF BALL RESIN COMPOSITION AND GOLF BALL USING THE SAME - An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots and a golf ball resin composition. The present invention provides a golf ball wherein at least one constituting member therefore is formed from a golf ball resin composition containing: (A) a polyamide resin, (B) at least one member selected from the group consisting of (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (C) an organically modified layered silicate, wherein a mass ratio ((A)/(B)) of (A) component to (B) component ranges from 15/85 to 80/20. | 04-30-2015 |
20150119167 | GOLF BALL RESIN COMPOSITION AND GOLF BALL USING THE SAME - An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball wherein at least one constituting member therefore is formed from a golf ball resin composition containing: (A) a polyamide resin and (B) at least one member selected from the group consisting of (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, wherein the content of (A) component with respect to 100 mass % of a total of (A) component and (B) component is 15 mass % to 80 mass %, a slab hardness of the golf ball resin composition is 65 or more and 80 or less in Shore D hardness, and a value (X/A) obtained by dividing a flexural modulus X (MPa) by the content of (A) component (A: 15 mass % to 80 mass %) is 12.5 or more. | 04-30-2015 |
20150111658 | GOLF CLUB - A golf club includes a head having a plurality of holding holes and a hosel part, the hosel part having a sleeve insertion hole; a shaft; a sleeve, the sleeve being inserted into the sleeve insertion hole and bonded to the shaft, the sleeve having a screw hole; and a connecting member having a screw part inserted into the screw hole of the sleeves and forms a screw-connection of the sleeve and the connecting member, wherein the shaft is configured to be fixed along one of a plurality of shaft axis lines by positioning the connecting member in one of the plurality of holding holes such that a lie angle is adjustable to be along one of the plurality of shaft axis lines. | 04-23-2015 |
20150105183 | GOLF CLUB SET FITTING DEVICE, FITTING METHOD, AND COMPUTER-READABLE MEDIUM STORING FITTING PROGRAM - A device is provided with an obtaining unit, a specifying unit, and a determination unit. The obtaining unit obtains measurement data in which the golfer has performed a test-hit of at least one number of a golf club for each type of golf club from among the multiple types of golf clubs. The specifying unit specifies a relationship of correspondence between a loft angle and a flight-distance for each type of golf club based on the measurement data. The determination unit determines, based on the relationship of correspondence, a type of golf club having a large flight-distance with respect to a loft angle as a best-match type, which is a type of golf club best matched to the golfer. | 04-16-2015 |
20150094163 | GOLF CLUB HEAD - A hollow golf club head comprises a face portion having a club face for hitting a ball, and a club face's perimeter region extending backwards from the face portion. The perimeter region is provided with at least one set of a front part extending backwards from the face portion to have a free rear end, and a rear part extending forwards to have a free front end. The front part and the rear part are overlapped with each other without being fixed to each other so that, relatively to the rear part, the front part is movable in the front-back direction of the club head when hitting a ball. | 04-02-2015 |
20150094160 | SHAFT FOR GOLF CLUBS | 04-02-2015 |
20150087436 | GOLF CLUB - A club length L1 of a golf club | 03-26-2015 |
20150087435 | GOLF CLUB | 03-26-2015 |
20150087434 | GOLF CLUB SET - A golf club set | 03-26-2015 |
20140378245 | GOLF CLUB HEAD WITH TEXTURED STRIKING FACE - A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves. | 12-25-2014 |
20140357408 | GOLF BALL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a golf ball showing a great flight distance on driver shots for includes the steps of: preparing a rubber composition containing a base rubber, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, a crosslinking initiator and a carboxylic acid and/or a salt thereof; heat pressing the rubber composition at a press temperature ranging from t-40° C. to t-15° C. to mold a spherical core, wherein t ° C. is a one-minute half-life temperature of the crosslinking initiator; and forming at least one cover layer covering the spherical core. | 12-04-2014 |
20140357407 | GOLF BALL - An object of the present invention is to provide a golf ball showing a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein when JIS-C hardness of the spherical core is measured at points located at distances of 0% (core center), 37.5%, 75.0% and 100% (core surface) from the core center of the spherical core, a hardness difference (Hs−Ho) between a surface hardness (Hs) thereof and a center hardness (Ho) thereof is 20 or more, a ratio ((H | 12-04-2014 |
20140357406 | GOLF BALL - A method for manufacturing a golf ball showing a great flight distance on driver shots for includes the steps of: preparing a rubber composition containing a base rubber, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, a crosslinking initiator and a carboxylic acid and/or a salt thereof; heat pressing the rubber composition at a press temperature ranging from t-40° C. to t-15° C. to mold a spherical core, wherein t ° C. is a one-minute half-life temperature of the crosslinking initiator; and forming at least one cover layer covering the spherical core. | 12-04-2014 |
20140357402 | GOLF CLUB HEAD | 12-04-2014 |
20140357398 | GOLF CLUB - A golf club includes a club head, and a shaft. The club head includes a hosel formed into a tubular body having a top end and a shaft insertion hole extending downwardly from the top end. The shaft includes a shaft main body and a reinforcing member. The shaft main body is formed into a tubular shape having a tip end, and an internal surface surrounding cavity therein. The reinforcing member has a specific gravity of not more than 2.0 and is fixed in the cavity of the shaft main body. The reinforcing member includes a first portion fitting the internal surface of the shaft main body. The first portion includes an uppermost edge positioned upwardly with respect to the top end of the hosel, and a lowermost edge positioned between the top end of the hosel and the tip end of the shaft main body. | 12-04-2014 |
20140349779 | GOLF CLUB HEAD | 11-27-2014 |
20140335972 | GOLF CLUB HEAD - A golf club head includes a primary component and a secondary component, wherein the secondary component is rotatably or pivotally associated with the rear surface of the primary component. The secondary component is adjustable between a first orientation and a second orientation relative to the primary component such that the golf club head has a first sole contour when the secondary component is in the first orientation and a second sole contour when the secondary component is in the second orientation, the first sole contour being different from the second sole contour. | 11-13-2014 |
20140323242 | GOLF BALL - The present invention provides a golf ball that achieves a low spin rate on driver shots to thereby improve flight distance performance, and also has improved durability, especially at high clubhead speeds. The present invention relates to a golf ball including a core, at least one middle layer covering the core, and a cover covering the middle layer, wherein at least one piece or layer of the middle layer includes a material for a middle layer that includes a thermoplastic polyurethane with a slab hardness of 65 to 80 in Shore D hardness and a ratio of upper yield stress (MPa) to lower yield stress (MPa) of not more than 1.60. | 10-30-2014 |
20140296005 | RACKET FRAME - In a racket frame | 10-02-2014 |
20140295997 | PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE - A golf ball | 10-02-2014 |
20140295994 | GOLF BALL - An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a specific organic peroxide, and (d) a carboxylic acid and/or a salt thereof, provided that the rubber composition further contains (e) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent. | 10-02-2014 |
20140221120 | SYSTEMS AND METHODS FOR FITTING GOLF CLUBS TO GOLFERS - A system for fitting golf clubs to golfers that enables an overall club length to be varied without varying the length of the golf club shaft. The system enables a greater number of combinations of club characteristics, such as shaft flex, brand, and length, to be contained within a club fitting cart and/or for a same number of combinations of club characteristics to be contained within a smaller cart. | 08-07-2014 |
20140216180 | METHOD FOR EXTRACTING IMPACT TIME IN GOLF SWING - A method for extracting impact time in a golf swing includes acquiring at least one chronological waveform among chronological waveforms of an angular velocity about x-axis, an angular velocity about y-axis, and an angular velocity about z-axis obtained when a golf ball is hit by a golf club attached with a sensor that measures angular velocities about three axes, when the x-axis is orientated along a toe-heel direction of a golf club head, when the y-axis is orientated so as to follow along a direction in which a ball is hit, and when the z-axis is orientated to match an axial direction of a shaft; acquiring timing at which laser light, disposed immediately in front of where the golf club head impacts the ball, is shielded by the golf club head or the shaft; and determining an impact time using the at least one chronological waveform and the timing. | 08-07-2014 |
20140213391 | GOLF BALL - An object of the present invention is to provide a golf ball showing a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator and (d) a mercaptocarboxylic acid derivative and/or a dithiodicarboxylic acid derivative. | 07-31-2014 |
20140213389 | GOLF CLUB HEAD AND MANUFACTURING METHOD FOR SAME - The present invention provides a golf club head that enables increasing the moment of inertia while also improving durability, and a manufacturing method for the same. The golf club head of the present invention includes a crown portion. The crown portion has a first region having a first thickness and multiple second regions having a second thickness that is smaller than the first thickness. The second regions are distributed in a radiating fashion so as to extend from an origin toward a peripheral portion of the crown portion excluding the face side, the origin being located within 15 mm of the center of gravity of the golf club head in the toe-heel direction and also being located in the vicinity of the face side in the face-back direction in a plan view. | 07-31-2014 |
20140213387 | GOLF CLUB HEAD - A wood-type golf club head includes a main body and a striking wall associated with the main body. The striking wall has a striking face including a face center, a first imaginary plane tangent to the face center, and a rear surface opposite the striking face. In a second imaginary plane perpendicular to the first imaginary plane and passing through, the face center, the striking face includes a first point associated with a maximum thickness, t | 07-31-2014 |
20140213386 | GOLF CLUB - A golf club gc includes a head hd, a shaft sf, a sleeve sv, and a screw sc. The sleeve sv is secured to a tip part of the shaft sf. The sleeve sv includes a plurality of engaging projections sv | 07-31-2014 |
20140206476 | GOLF BALL - An object of the present invention is to provide a golf ball showing a low spin rate on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator and (d) a carboxylic acid having a heterocyclic ring and/or a salt thereof, provided that the rubber composition further contains (e) a metal compound in case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent. | 07-24-2014 |
20140206473 | GOLF CLUB HEAD WITH TEXTURED STRIKING FACE - A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves. | 07-24-2014 |
20140187356 | GOLF BALL - A golf ball | 07-03-2014 |
20140187347 | GOLF CLUB HEAD - A head body h1 includes a recess part | 07-03-2014 |
20140155190 | GOLF CLUB | 06-05-2014 |
20140128179 | PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE - A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of:
| 05-08-2014 |
20140121035 | ADJUSTABLE GOLF CLUB - In an embodiment, a golf club includes a striking face, a top portion, a sole portion opposite the top portion, and a shaft assembly. The shaft assembly can include a shaft having a butt end and a tip end, and a shaft sleeve located at the tip end, the shaft sleeve including indicia, and a hosel extending from the top portion. The hosel can include a sidewall, an internal bore for receiving the shaft assembly, and an aperture extending through, and circumscribed by, the sidewall such that the indicia of the shaft sleeve corresponds with the aperture. | 05-01-2014 |
20140106904 | A GOLF CLUB HEAD - A golf club head according to one or more aspects of the present invention may include a main cavity having at least one auxiliary cavity and a base surface. An insert may be associated with the base surface and may comprise at least two contact elements, with a bridge member disposed therebetween. Different contact elements of the insert may be disposed in separate respective auxiliary cavities, such that each contact element may be associated with the base surface. The bridge member of the insert may be dissociated from the base surface. Moreover, a surface coating may be selectively applied to the head to permit a durable adhesive bond between the insert and the base surface. | 04-17-2014 |
20140106903 | GOLF CLUB HEAD - A golf club head has a hollow and comprises a face portion having a club face for hitting a ball, a sole portion defining a bottom face of the club head, and a hosel into which a tip end of a golf club shaft is inserted. The hosel protrudes into the hollow. The sole portion is provided in its club face side with a thick ribbed part having a thickness of from 3.0 to 10.0 mm and extending in the toe-heel direction of the head. In the hollow, the ribbed part is connected to the hosel. | 04-17-2014 |
20140106895 | GOLF CLUB SHAFT | 04-17-2014 |
20140057733 | GOLF CLUB - A golf club | 02-27-2014 |
20140045609 | GOLF CLUB HEAD - A golf club head comprises a loft angle no less than 18°, a striking face, a sole portion, and a top portion having an exterior surface. In an imaginary vertical plane spaced from a face center by no more than 10 mm and perpendicular to an imaginary striking face plane, an imaginary line segment has a length of 25 mm, a first endpoint located in the imaginary striking face plane, a second endpoint located above the exterior surface, and forms an angle θ with the striking face plane between 55° and 65°. The line segment is tangent to the exterior surface at a first point. A second point is located on the imaginary line segment and spaced from the first point by no less than 1 mm. The second point is spaced from the exterior surface by a gap distance that is no greater than 0.15 mm. | 02-13-2014 |
20140038747 | GOLF CLUB HEAD - A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity. | 02-06-2014 |
20140038743 | GOLF CLUB - Generally, provided is an insert for usage on an outer surface of a sporting apparatus (e.g., a golf club). The insert includes a securing member that protrudes from surface of the insert. The securing member may include a stem and a head, wherein the stem functions to couple the head to a face of the securing member. The head of the securing member functions to prevent the insert from becoming dislodged or separated from the outer surface of the sporting apparatus during usage. | 02-06-2014 |
20140031145 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - The invention provides a resin composition for golf balls having excellent resilience, flexibility and fluidity, and golf balls having excellent resilience and shot feel. The resin composition comprises: (A) at least one selected from the group consisting of (a-1) a binary copolymer of an olefin and a C | 01-30-2014 |
20130324317 | GOLF BALL - A golf ball | 12-05-2013 |
20130324315 | GOLF BALL - A golf ball | 12-05-2013 |
20130324314 | GOLF BALL - A golf ball | 12-05-2013 |
20130324313 | GOLF BALL - A golf ball | 12-05-2013 |
20130324311 | RUBBER COMPOSITION AND GOLF BALL - The invention provides a rubber composition having high rebound resilience measured by a rebound resilience evaluation method which is excellent in measurement accuracy and can sufficiently evaluate the difference in performance between samples. The invention also provides a golf ball formed from the rubber composition. The invention further provides a golf ball having excellent flight performance owing to good hardness distribution measured by a hardness evaluation method which is excellent in measurement accuracy and can sufficiently evaluate the difference in performance between samples. The invention relates to a rubber composition having a specific radius of gyration R | 12-05-2013 |
20130324289 | GOLF CLUB STEEL SHAFT - A golf club steel shaft in which, when a distance from a front end of the shaft to a center of gravity point of the shaft is L | 12-05-2013 |
20130324273 | GOLF CUP ACCESSORY - An accessory for association with a standard golf up includes an adapter, a trapping portion and a rise. The adapter is configured to fit within the standard golf cup. The trapping portion is coupled to the adapter, has a recess and delimits a generally planar approach area that is greater in size than an approach area of a standard golf cup. The rise is coupled to the trapping portion. | 12-05-2013 |
20130316850 | GOLF BALL - A golf ball | 11-28-2013 |
20130310196 | GOLF BALL - An object of the present invention is to provide a golf ball having a spherical core with an outer-hard inner-soft structure formed from a rubber composition excellent in kneading workability. Another object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a basic metal salt of a fatty acid. | 11-21-2013 |
20130307182 | METHOD FOR MANUFACTURING A GOLF BALL - An object of the present invention is to provide a method for manufacturing a golf ball excellent in kneading workability when preparing a core rubber composition containing (d) a carboxylic acid and/or a salt thereof. The present invention provides a method for manufacturing a golf ball comprising the steps of blending (a) a base rubber and at least (b) a carboxylic acid and/or a salt thereof to prepare a first masterbatch; blending (a) a base rubber and at least (c) a crosslinking initiator to prepare a second masterbatch; blending the first masterbatch and second masterbatch to form a core rubber composition; molding the core rubber composition into a spherical core; and forming one or more cover layers covering the spherical core. | 11-21-2013 |
20130303308 | GOLF BALL - A first golf ball | 11-14-2013 |
20130303307 | GOLF BALL - The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) an acid and/or a salt thereof, provided that the rubber composition further contains (e) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent, wherein (d) the acid and/or the salt thereof has a relative solubility parameter to (a) the base rubber and (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or the metal salt thereof ranging from 0.45 to 1.10. | 11-14-2013 |
20130288829 | FITTING METHOD OF GOLF CLUB - This fitting method includes, for example, the following steps A1 to E1:
| 10-31-2013 |
20130288824 | GOLF BALL - A golf ball | 10-31-2013 |
20130288820 | GOLF CLUB HEAD | 10-31-2013 |
20130288818 | GOLF CLUB - A golf club c | 10-31-2013 |
20130288816 | GOLF CLUB - A golf club | 10-31-2013 |
20130288812 | GOLF CLUB - A golf club having a head disposed at a front end of a shaft and having a grip disposed at a back end of the shaft. The golf club includes a sensor section arranged on a grip-end edge of the grip and used for analyzing action of a golf swing. | 10-31-2013 |
20130260923 | GOLF CLUB SHAFT FITTING METHOD - A fitting method of a shaft of a golf club for selecting a shaft matching a golfer based on a swing of the golfer. The method includes the steps of obtaining measurement values from a sensor attached to a grip of a golf club; determining address, top, and impact of a swing from the measurement values; and selecting a shaft that matches a golfer through a usage of the swing characteristic amounts and values. | 10-03-2013 |
20130244810 | GOLF BALL - An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, (d) a carboxylic acid having 4 to 30 carbon atoms and/or a salt thereof, and (e) a halogen-substituted thiophenol and/or a metal salt thereof as an organic sulfur compound, provided that the rubber composition further contains (f) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent. | 09-19-2013 |
20130231201 | GOLF CLUB SHAFT - Provided is a golf club shaft. When a distance from a front end of the shaft to a center of gravity of the shaft is L | 09-05-2013 |
20130226541 | METHOD FOR SIMULATING RUN - This method simulates a run which is a distance between a landing point and a final arriving point using an initial condition of a hit ball and an actually measured falling condition. Preferably, the initial condition includes initial side spin. Preferably, the falling condition is a falling velocity. Preferably, a calculation formula of the run is a quadratic function having the initial condition and the falling condition as variables. Preferably, when the run is defined as Dr (yard); a target direction component of the falling velocity is defined as Vx (m/s); a vertical direction component of the falling velocity is defined as Vy (m/s); and the initial side spin is defined as S (rpm), the run is calculated according to the following formula (1): | 08-29-2013 |
20130225319 | GOLF CLUB HEAD - A golf club head of the present invention includes a face. The face has a score line groove, a fine groove, and a land area. A depth of the fine groove is 0.01 mm or greater and less than 0.03 mm. A width of the fine groove is 0.1 mm or greater and 0.3 mm or less. A pitch of the fine groove is 0.3 mm or greater and 0.7 mm or less. Preferably, the face further has a protruding part protruding beyond the land area. Preferably, the protruding part is provided on a top blade side of the fine groove. Preferably, the protruding part extends along the fine groove. | 08-29-2013 |
20130225314 | GOLF CLUB HEAD | 08-29-2013 |
20130217514 | GOLF CLUB HEAD - A hollow golf club head comprises a face portion with a face for hitting a ball on its front and a crown portion forming a top surface of the head, wherein the head comprises a face member including the face portion and made of a metallic material and a crown member attached to the face member to form the crown portion at least partially, the crown member includes a first member made of a metal material and a second member made of a fiber reinforced resin for supporting the first member so that the first member does not directly contact with the face member, the head has a primary natural frequency of from 3800 to 6500 Hz and an antinode when the head vibrates in the primary natural mode appears in the first member. | 08-22-2013 |
20130203524 | GOLF BALL - An object of the present is to provide a golf ball having an increased spin rate on approach shots. Another object of the present invention is to provide a golf ball having a goof shot feeling on approach shots. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, and having a coefficient of friction calculated using a contact force tester of 0.35 or more and 0.60 or less. | 08-08-2013 |
20130203523 | GOLF BALL | 08-08-2013 |
20130196791 | GOLF BALL - A golf ball | 08-01-2013 |
20130196783 | MEASURING APPARATUS FOR GOLF CLUB - A measuring apparatus | 08-01-2013 |
20130184101 | GOLF BALL - A golf ball | 07-18-2013 |
20130177239 | SILHOUETTE CORRECTION METHOD AND SYSTEM AND SILHOUETTE EXTRACTION METHOD AND SYSTEM - A method and system for correcting a silhouette of a person extracted from an image by labeling each pixel as the person or the background are disclosed. The pixels in a target region are corrected by: a step in which, by the use of pixels in the target region labeled as the person, a person histogram is created; a step in which, by the use of pixels in the target region labeled as the background, a background histogram is created; a step in which, for each pixel in the target region, by the use of the person histogram, the background histogram and color data of each pixel in the target region, first connective costs of the pixel to the color data of the person and the background are calculated; and a step in which, for each pixel in the target region, a second connective cost of the pixel is calculated. | 07-11-2013 |
20130172116 | MULTI-PIECE GOLF BALL - A multi-piece golf ball excellent in resilience and controllability includes a core composed of a center and an envelope layer covering the center and at least one cover covering the core, wherein the center is formed from a center composition containing (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of the binary copolymer, (a-3) a ternary copolymer composed of the binary copolymer components and an β,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of the ternary copolymer components and (B) a basic metal salt of a fatty acid, and wherein the envelope layer is formed from a rubber composition. | 07-04-2013 |
20130172115 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - A golf ball resin composition that is excellent in resilience includes (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (B) a basic metal salt of a fatty acid. | 07-04-2013 |
20130172114 | MULTI-PIECE GOLF BALL - A multi-piece golf ball includes a core composed of a center, an envelope layer and at least one cover. The center is formed from a composition containing at least one resin component and a basic metal salt of a fatty acid. The resin component is selected from a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid, an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid, a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid and an α,β-unsaturated carboxylic acid ester, and an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid and an α,β-unsaturated carboxylic acid ester. The envelope layer is formed from a composition containing a thermoplastic resin and/or a thermoplastic elastomer as a resin component. | 07-04-2013 |
20130172113 | GOLF BALL - A golf ball | 07-04-2013 |
20130172112 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - The present invention provides a golf ball resin composition comprising (A) an ionomer resin component and (B) a compound having an anionic part within a molecule thereof, wherein with respect to a metal ion contained in the golf ball resin composition, (A) the ionomer resin component and (B) the compound having the anionic part within the molecule thereof, following coordinate energies obtained by ab initio molecular orbital calculation method using a basis function B3LYP/6-31G(d) satisfy the following expression: 0.3≦(A−C)/(B−C)≦0.6, wherein coordinate energy A is the coordinate energy between the metal ion and the anionic part of (B) component, coordinate energy B is the coordinate energy between the metal ion and the carboxyl ion of (A) component, and coordinate energy C is the coordinate energy between the metal ion and the olefin of (A) the ionomer resin component. | 07-04-2013 |
20130172111 | GOLF BALL - An object of the present invention is to provide a golf ball having a low spin rate on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator and (d) a carboxylic acid having a benzene ring and/or a salt thereof, provided that the rubber composition further contains (e) a metal compound in case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent. | 07-04-2013 |
20130172110 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - An object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball resin composition comprising (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of the binary copolymer, (a-3) a ternary copolymer composed of the binary copolymer components and an α,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of the ternary copolymer components; and (B) a basic metal salt of a fatty acid, and having a spin-lattice relaxation time (T1) of | 07-04-2013 |
20130172109 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - An object of the present invention is to provide a golf ball resin composition excellent in shot feeling and resilience. The golf ball resin composition includes (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of the binary copolymer components, (a-3) a ternary copolymer composed of the binary copolymer components and an α,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of the ternary copolymer components; and (B) a basic metal salt of a fatty acid, and having a storage modulus E′ (Pa) and a loss modulus E″ (Pa) satisfying a following expression; | 07-04-2013 |
20130172099 | GOLF CLUB SHAFT AND GOLF CLUB - A golf club shaft has a tip end to which a golf club head is attached and a butt end to which a grip is attached, wherein the shaft is composed of a fiber reinforced resin having a fiber layer, the fiber layer contains a bias layer having bias fibers oriented at an angle with respect to an axial direction of the shaft, the bias layer includes a tip-side bias layer extending from the tip end toward the butt end and having a butt-side end terminating without reaching the butt end and a butt-side bias layer extending from the butt end toward the tip end and having a tip-side end terminating without reaching the tip end, and bias fibers in the tip-side bias layer has a tensile elastic modulus smaller than that of bias fibers of the butt-side bias layer. | 07-04-2013 |
20130172098 | TUBULAR BODY MADE OF FIBER-REINFORCED EPOXY RESIN MATERIAL - It is an object to provide a tubular body made from a novel fiber-reinforced epoxy resin material having improved strength. A tubular body made of a fiber-reinforced epoxy resin material according to the present invention is a tubular body made of a fiber-reinforced epoxy resin material comprising a cured product of an epoxy resin composition and a reinforcing fiber. The cured product of the epoxy resin composition has a swelling ratio of 20% by mass to 42.5% by mass in methyl ethyl ketone. | 07-04-2013 |
20130172097 | GOLF CLUB SHAFT - A section where the tip side partial bias layer exists in an axis direction of the shaft is defined as a section T; a section where the back end side partial bias layer exists in the axis direction of the shaft is defined as a section B; and a shaft section inserted into a hosel of a head in the axis direction of the shaft is defined as a section H. A part of the section T overlaps with the section H. An overlapping section TB in which the section T overlaps with the section B exists. The whole overlapping section TB is located on a back end Bt side of the shaft from the section H. A center position Px of the overlapping section TB is located on a tip side of the shaft from a center position Pc of the shaft. | 07-04-2013 |
20130172096 | IRON-TYPE GOLF CLUB SET AND IRON-TYPE GOLF CLUB HEAD SET - A set of iron-type golf clubs and a set of iron-type golf club heads are disclosed. The loft angles of the heads are gradually increased from the lowest numbered golf club to the highest numbered golf club in the set. Given that a coefficient of inertia of the head is the ratio Ms/M of a moment of inertia Ms (gram sq·cm) of the head around a horizontal axis extending in a toe-heel direction of the head passing through the center of gravity of the head, to the mass M (g) of the head, the coefficient of inertia is gradually increased with the increase in the loft angle, and the difference of the coefficient of inertia of the head of the highest numbered club from that of the lowest numbered club is 0.3 or more. | 07-04-2013 |
20130172095 | MEASURING METHOD OF GOLF CLUB HEAD - A head measuring method of the present invention includes:
| 07-04-2013 |
20130172094 | DIAGNOSING METHOD OF GOLF SWING | 07-04-2013 |
20130165265 | GOLF BALL - An object of the present invention is to provide a golf ball having an excellent properties like flight distance and low temperature durability. The present invention provides a golf ball comprising: a core consisting of a center and one or more intermediate layers covering the center; and a cover covering the core, wherein at least one piece or one layer of said intermediate layers is formed from a highly elastic intermediate layer composition that contains (A) a highly elastic polyamide resin having a flexural modulus in a range from 700 MPa to 5,000 MPa; (B) a metal-neutralized product of ethylene-(meth)acrylic acid copolymer and (C) a resin having a polar functional group in a specific way. | 06-27-2013 |
20130165263 | RESIN COMPOSITION FOR GOLF BALL AND GOLF BALL - The present invention provides a resin composition for a golf ball and a golf ball which have high resilience while maintaining soft compression and also have low spin on driver shots, and therefore can achieve a long flight distance. The present invention relates to a resin composition for a golf ball, including an ionomer resin consisting of a metal ion-neutralized copolymer of (A) a C | 06-27-2013 |
20130165250 | GOLF CLUB SHAFT - A shaft full length is defined as Ls and a distance between a tip end of the shaft and a center of gravity G of the shaft is defined as Lg. In a shaft | 06-27-2013 |
20130158939 | METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR FITTING TENNIS RACKET AND ANALYSIS DEVICE - A tennis racket fitting method according to the present invention comprises: a first step of preparing a plurality of test tennis rackets, at least one type of racket property that influences swing for hitting a ball being defined for each of the test tennis rackets; a second step of causing a reference tennis racket to be swung at least one time by a user in order to hit a tennis ball, and acquiring a measured value by measuring transition in at least one of the position, the velocity, the acceleration, and the angular velocity of the reference tennis racket in at least a portion of an interval from when the swing starts until when the swing ends; a third step of calculating at least one evaluation indicator to be an evaluation of the swing of the reference tennis racket based on the measured value; and a fourth step of, based on the racket property, selecting a tennis racket that can improve at least one evaluation indicator from among the test tennis rackets. | 06-20-2013 |
20130150180 | GOLF CLUB HEAD | 06-13-2013 |
20130143682 | DIAGNOSING METHOD OF GOLF SWING - A diagnosing method of a golf swing according to the present invention includes the following steps:
| 06-06-2013 |
20130137535 | GOLF BALL MATERIAL AND GOLF BALL USING THE SAME - An object of the present invention is to provide a golf ball with improved durability and/or resilience by improving the adhesion between a constituent member comprising an ionomer resin and a constituent member comprising a polyurethane. The present invention provides a golf ball material composed of a multi-block copolymer having a block A that has an acid functional group neutralized with a metal ion and a block B that has lower polarity than the block A. | 05-30-2013 |
20130137534 | RESIN COMPOSITION FOR GOLF BALL AND GOLF BALL - Provided are a resin composition for a golf ball which is excellent in resilience, flexibility and fluidity, and a golf ball excellent in resilience and shot feeling. The present invention relates to a resin composition for a golf ball, including (A) a resin component and (B) a nonionic surfactant, the resin component (A) including at least one selected from the group consisting of (a-1) a binary copolymer of an olefin and a C | 05-30-2013 |
20130127866 | DEVICE, SYSTEM, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR ANALYZING TENNIS SWING MOTION - A tennis swing movement analyzing apparatus of the present invention includes an acquisition unit configured to acquire sampling data obtained by sampling a swing movement of a tennis racket by a user; a calculation unit configured to, based on the sampling data, calculate an indicator selected from among the velocity, the acceleration, the angular velocity, and the position of the tennis racket or a ball hit by the tennis racket and an arbitrary combination thereof; and a screen creation unit configured to create a GUI screen displaying a graph area that is divided into a plurality of areas respectively indicating types of swings and displaying the indicator in the graph area. | 05-23-2013 |
20130123047 | GOLF BALL - The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing a non-petroleum based polyester resin as a resin component (A) and a needle-like and/or fibrous filler (B). The present invention further provide a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing, a non-petroleum based polyester resin (A-1), at least one petroleum based thermoplastic resin (A-2), and a compatibilizer (C) containing at least a (meth)acrylic resin (C-1) having a polar functional group and an olefin resin (C-2) having a polar functional group. | 05-16-2013 |
20130123044 | GOLF BALL - An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, (d) a carboxylic acid having 1 to 14 carbon atoms and/or a salt thereof, and (e) a halogen-substituted thiophenol and/or a metal salt thereof as an organic sulfur compound, provided that the rubber composition further contains (f) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent. | 05-16-2013 |
20130116065 | GOLF CLUB HEAD AND GOLF CLUB - A golf club head with a hollow portion therein, includes a head main body provided with at least one opening which includes at least a part of a sole portion forming a bottom of the head, a resin member composed of a fiber reinforced resin which is attached to the head main body so as to close the opening, and a reinforcing member across the opening having a specific gravity greater than that of the resin member. | 05-09-2013 |
20130109503 | GOLF CLUB HEAD AND GOLF CLUB | 05-02-2013 |
20130109502 | GOLF CLUB HEAD | 05-02-2013 |
20130102417 | PROCESS FOR DESIGNING DIMPLE PATTERN OF GOLF BALL - A golf ball | 04-25-2013 |
20130102411 | GOLF CLUB HEAD AND GOLF CLUB - A golf club head ( | 04-25-2013 |
20130095954 | COLORED GOLF BALL - An object of the present invention is to provide a golf ball having a high performance as well as the visibility and the fashionable appearance. The present invention provides a colored golf ball having a color other than white and comprising: a core having a center and at least one intermediate layer disposed around the center, and a cover disposed around the core, wherein the cover and at least one of the intermediate layer preferably contain a fluorescent dye and/or a fluorescent pigment. | 04-18-2013 |
20130095951 | GOLF CLUB - Provided is a golf club having a head disposed at a front end of a shaft and a grip disposed at a back end of the shaft. A club weight is not larger than 290 g, and a ratio (head weight/club weight) of a head weight to a club weight is not lower than 0.67 but not higher than 0.72. Furthermore, a grip weight is not smaller than 27 g but not larger than 45 g, and when a distance from the front end of the shaft to a center of gravity the shaft is L | 04-18-2013 |
20130095950 | GOLF CLUB SHAFT AND GOLF CLUB USING THE SAME - A golf club shaft extending from a tip end to a butt end and made of fiber reinforced resin, comprises a weight being in a range of from 30 to 55 g, a whole length LS between the tip end and the butt end, a center of gravity of the shaft located with a distance LG from the tip end, a ratio of the distance LG to the whole length LS being in a range of from 0.54 to 0.65, a butt end portion which has a length of 300 mm from the butt end toward the tip end, the butt end portion including fibers including a low elastic fiber having an elastic modulus in a range of from 5 to 20 t/mm | 04-18-2013 |
20130095949 | GOLF CLUB SHAFT AND GOLF CLUB USING THE SAME - A golf club shaft extending from a tip end to a butt end and made of fiber reinforced resin, comprises a weight being in a range of from 30 to 55 g, a whole length LS between the tip end and the butt end, a center of gravity of the shaft located with a distance LG from the tip end, a ratio of the distance LG to the whole length LS being in a range of from 0.54 to 0.65, a tip end portion which has a length of 300 mm from the tip end toward the butt end, the tip end portion including fibers including a pitch based carbon fiber and a PAN based carbon fiber, and said fibers in the tip end portion comprising, in weight, the pitch based carbon fiber of from 15 to 25% and the PAN based carbon fiber of from 85 to 75%. | 04-18-2013 |
20130095948 | GOLF CLUB SHAFT - When a distance from a shaft front end to a shaft gravity center point is L | 04-18-2013 |
20130095946 | GOLF CLUB - Provided is a golf club having a head disposed at a front end of a shaft and a grip disposed at a back end of the shaft. A club weight is not larger than 290 g, and a ratio (head weight/club weight) of a head weight to a club weight is not lower than 0.67 but not higher than 0.72. When an inertia moment of the club at a grip end is MI, 2700 kg·cm | 04-18-2013 |
20130095945 | GOLF CLUB - Provided is a golf club having a head disposed at a front end of a shaft and a grip disposed at a back end of the shaft. A club weight is not larger than 265 g, and a ratio (head weight/club weight) of a head weight to a club weight is not lower than 0.67 but not higher than 0.75. When a distance from the front end of the shaft to a center of gravity of the shaft is L | 04-18-2013 |
20130095944 | WOOD-TYPE GOLF CLUB - Provided is a golf club having a head disposed at a front end of a shaft and a grip disposed at a back end of the shaft. A club weight is not larger than 290 g. A product of a ratio (head weight/club weight) of a head weight to the club weight, and a ratio (L | 04-18-2013 |
20130095943 | GOLF CLUB - Provided is a golf club having a head disposed at a front end of a shaft and a grip disposed at a back end of the shaft. A club weight is not smaller than 290 g, and a ratio (head weight/club weight) of a head weight to a club weight is not lower than 0.67 but not higher than 0.72. When a distance from the front end of the shaft to a center of gravity of the shaft is L | 04-18-2013 |
20130090188 | GOLF BALL - A center of a golf ball is formed from a composition having a flexural modulus from 150-450 MPa, a maximum loss factor (tan δ) between −20 and 0° C. of 0.08 or less, a rebound resilience of 55% or more, and a slab hardness ranging from 40-60 in Shore D hardness. The center composition includes, as a resin component, 30 to 70 mass % of (A) a modified polyester elastomer having a Shore A hardness of 95 or less; 70-30 mass % of (B) a binary ionomer resin having a Shore D hardness of 65 or more, a flexural modulus of 300 MPa or more, and a melt flow rate (190° C., 2.16 kg) of 1.0 g/10 min or more; and 0-50 mass % of (C) a thermoplastic resin other than (A) and (B) components (provided that a total content of (A), (B), and (C) components is 100 mass %). | 04-11-2013 |
20130090184 | GOLF CLUB SHAFT - A golf club shaft, wherein when a distance from a shaft front end to a shaft gravity center point is L | 04-11-2013 |
20130085014 | GOLF BALL - An object of the present invention is to provide a resin composition for the golf ball that suppresses the bleed out of the low molecular weight material component, as well as improves the fluidity and repulsion performance. The present invention provides a golf ball forming resin composition comprising as a resin component, (A) a high melt viscosity resin; (B) a low melt viscosity ionomer resin having a melt viscosity (190° C.) ranging from 1 Pa·s to 10 Pa·s measured by a brookfield viscometer, in a ratio of (A) the high melt viscosity resin/(B) the low melt viscosity ionomer resin being 55 mass % to 99 mass %/45 mass % to 1 mass %; and (C) a metal ion source capable of neutralizing carboxyl groups of (A) the high melt viscosity resin and (B) the low melt viscosity ionomer resin, in an amount of from 0.1 part to 10 parts with respect to 100 parts by mass of a sum of (A) the high melt viscosity resin and (B) the low melt viscosity ionomer resin. | 04-04-2013 |
20130065711 | SWING ANALYSIS METHOD - An analysis method of the present invention includes the steps of: measuring a swing of a golf club to which a sensor capable of measuring accelerations in directions of three axes and angular velocities or angles about the three axes is attached; obtaining an index for classifying the swing based on a measuring result of the sensor; and classifying the swing based on the index. The index includes the following item (a) or (b): | 03-14-2013 |
20130065707 | GOLF BALL - A golf ball | 03-14-2013 |
20130053174 | GOLF BALL POLYURETHANE COMPOSITION AND GOLF BALL - An object of the present invention is to provide a golf ball polyurethane composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball polyurethane composition comprising, as a resin component, a polyurethane elastomer including a polyisocyanate with one alicyclic hydrocarbon structure having 3 or more carbon atoms as a constituting component, and having a storage modulus E′ (Pa) and a loss modulus E″ (Pa) satisfying a following expression; | 02-28-2013 |
20130012335 | GOLF BALL RESIN COMPOSITION AND GOLF BALL - An object of the present invention is to provide a soft golf ball resin composition excellent in the shot feeling and resilience. The present invention provides a golf ball resin composition comprising: (A) 100 parts by mass of at least one resin component selected from the group consisting of (a-1) a binary copolymer, (a-2) a binary ionomer resin, (a-3) a ternary copolymer, and (a-4) a ternary ionomer resin, (B) 1 part to 25 parts by mass of a phosphate ester and/or a salt thereof; and (C) 0 part to 200 parts by mass of a basic inorganic metal compound. The golf ball of the present invention comprises a constituent member formed from the golf ball resin composition. | 01-10-2013 |
20130005510 | PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE - A golf ball | 01-03-2013 |