| Patent application number | Description | Published |
|---|
| 20090105012 | Golf ball | 04-23-2009 |
| 20090124420 | Golf ball - The object of the present invention is to provide a golf ball that satisfies both of the flight distance at the shot with a driver, a long iron, and a middle iron and the controllability at the approach shot with a short iron and is also excellent in the abrasion resistance of the cover. The present invention provides a golf ball comprising a core consisting of a center and at least one intermediate layer covering the center, and a cover covering the core, wherein the cover is formed from a cover composition containing, as a resin component, a thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1) having at least two isocyanate groups or a polyisocyanate (b-2) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-3) which does not substantially react with an isocyanate group; and wherein the cover composition has a slab hardness of 60 or less in Shore D hardness, and the core has a hardness difference (Hs−Ho) between a surface hardness Hs and a center hardness Ho of from 15 to 50 in Shore D hardness. | 05-14-2009 |
| 20090170636 | GOLF BALL - The object of the present invention is to provide a golf ball which has excellent durability and wear-resistance and provides an excellent shot feeling The present invention provides a golf ball comprising: a core consisting of a center and at least one intermediate layer covering the center; and a cover covering the core, wherein the cover is formed from a cover composition containing a thermoplastic polyurethane (A), a polyisocyanate compound (B) having at least two isocyanate groups, and a polyhydroxyether (C) as a resin component, wherein the cover composition has a slab hardness from 20 to 55 in shore D hardness, and the cover has a thickness from 0.1 mm to 1.5 mm. | 07-02-2009 |
| 20090247326 | GOLF BALL - A golf ball | 10-01-2009 |
| 20090247328 | GOLF BALL - A golf ball | 10-01-2009 |
| 20090258730 | GOLF BALL - A golf ball | 10-15-2009 |
| 20090258731 | GOLF BALL - A golf ball | 10-15-2009 |
| 20100069174 | GOLF BALL - A golf ball | 03-18-2010 |
| 20100069175 | GOLF BALL - A golf ball | 03-18-2010 |
| 20100075778 | GOLF BALL - A golf ball | 03-25-2010 |
| 20100093466 | GOLF BALL - An objective of the present invention is to provide a golf ball striking a balance between the flight distance on the driver shots and the approach performance on the approach shots and having the excellent shot feeling and durability. The present invention provides a golf ball comprising a core consisting of a center and a surrounding layer covering the center; at least one intermediate layer covering the core; and a cover covering the intermediate layer; wherein at least one piece or one layer of the intermediate layer is formed from a highly elastic intermediate layer composition that contains (A) a highly elastic resin having a flexural modulus in a range from 700 MPa to 5,000 MPa and (B) an ionomer resin having a flexural modulus in a range from 150 MPa to 1,000 MPa in a content ratio ((A)/(B)) of (A) the highly elastic resin to (B) the ionomer resin (B) being (20 mass % to 80 mass %)/(80 mass % to 20 mass %) (the total is 100 mass %), and wherein a surface hardness (Hm) of the intermediate layer and a surface hardness (Hs) of the core satisfy the equation: Hm≧Hs, and the cover has a slab hardness (Hc) of 45 or less in Shore D hardness. | 04-15-2010 |
| 20100323805 | GOLF SWING ANALYSIS METHOD - A swing analysis method of the present invention includes steps of: preparing a radio type acceleration measuring device | 12-23-2010 |
| 20120108353 | METHOD FOR SELECTING GOLF CLUB - A plurality of golf clubs having mutually different flex point rates of a shaft is prepared. A subject hits a golf ball with one reference club included in the golf clubs. A face angle of the golf club immediately before hitting is measured by an apparatus | 05-03-2012 |
| 20120108354 | GOLF SWING ANALYSIS APPARATUS - A swing analysis apparatus | 05-03-2012 |
| 20120208654 | GOLF BALL - A golf ball | 08-16-2012 |
| 20120208655 | GOLF BALL | 08-16-2012 |
| 20120214613 | GOLF BALL - The present invention is directed to a golf ball having a center, an envelope layer, an intermediate layer and a cover, wherein the intermediate layer has a thickness less than 1.2 mm, the envelope layer has a hardness Hs of 60 or more, the intermediate layer has a hardness Hm from 40 to 60, and the cover has a hardness Hc less than 40 in Shore D hardness, and the hardness Hs, Hm and Hc satisfy a following mathematical expression: Hs>Hm>Hc, and the intermediate layer composition has a flexural modulus from 150 MPa to 450 MPa, a maximum loss factor (tan δ) between −20° C. and 0° C. of 0.08 or less, a rebound resilience of 55% or more. | 08-23-2012 |
| 20130196783 | MEASURING APPARATUS FOR GOLF CLUB - A measuring apparatus | 08-01-2013 |
| 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 |
