Patent application number | Description | Published |
20100074795 | Beta-TYPE TITANIUM ALLOY - The present invention provides a β-type titanium alloy keeping the content of the relatively expensive β-stabilizing elements such as V or Mo down to a total of 10 mass % or less and reducing the effects of composition segregation of Fe and Cr and thereby able to keep the Young's modulus and density relatively low. The β-type titanium alloy of the present invention comprises, by mass %, when Al: 2 to 5%, 1) Fe: 2 to 4%, Cr: 6.2 to 11%, and V: 4 to 10%, 2) Fe: 2 to 4%, Cr: 5 to 11%, and Mo: 4 to 10%, or 3) Fe: 2 to 4%, Cr: 5.5 to 11%, and Mo+V (total of Mo and V): 4 to 10% in range, and a balance of substantially Ti. These include Zr added in amounts of 1 to 4 mass %. Furthermore, by making the oxygen equivalent Q 0.15 to 0.30 or leaving the alloy in the work hardened state or by applying both, the tensile strength before aging heat treatment can be further increased. Due to this, it is possible to obtain the required strength even if the amount of precipitation of the α phase with the high Young's modulus is small. | 03-25-2010 |
20100192711 | ROLLING DEVICE - A rolling device having high silencing effect and requiring no positional alignment working to the seal is provided. The rolling device includes an inner member, an outer member and a number of rolling members disposed between these inner and outer members to thereby allow the outer member to carry out relative rotational motion with respect to the inner member. In such rolling device, an end plate | 08-05-2010 |
20110106077 | TREATMENT INSTRUMENT - This treatment instrument includes: a flexible wire that has a first end part and a second end part, and that has a treatment part at an intermediate part for conducting treatment within a body cavity; small-diameter parts where at least a portion of the outer circumferential face of the wire has a smaller diameter or is denuded relative to the rest; a bundled part where the wire is bundled so as to at least include the small-diameter parts; and a manipulation wire that is connected to this bundled part. | 05-05-2011 |
20110178366 | TREATMENT DEVICE FOR ENDOSCOPE - A treatment device for endoscope includes a flexible sheath, an operation wire that is advanceably/retreatably inserted into the sheath, a treatment part comprising at least one elastic wires that can enter and exit a tip side inner part of the sheath, and a connecting member that secures to each other a tip of the operation wire and ends of the elastic wires. The connecting member includes a cylindrical body part, and a plurality of walls that extend from one end face of the body part in the direction of the axis of the body unit. A proximal end of the operation wire is secured to the body part, and the plurality of ends of the elastic wires are secured to the wall in the direction of the axis; when viewed from the wall side in the direction of the axis, at least one of the ends of the elastic wires overlaps with the body part. The interval between mutually adjacent walls is narrower than the outer diameter of the elastic wires. | 07-21-2011 |
20110311835 | TITANIUM SLAB FOR HOT ROLLING, AND METHOD OF PRODUCING AND METHOD OF ROLLING THE SAME - The present invention provides a titanium slab for hot rolling which can be fed into a general purpose hot-rolling mill for producing strip coil, without passage through a breakdown process such as blooming or a straightening process, and can further suppress surface defect occurrence of the hot-rolled strip coil, and a method of producing and a method of rolling the same, characterized in that in the cast titanium slab an angle θ formed by the crystal growth direction (solidification direction) from the surface layer toward the interior and a direction parallel to the slab casting direction (longitudinal direction) is 45 to 90°, and moreover, there is a surface layer structure of 10 mm or greater whose θ is 70 to 90°, and further characterized in that a crystal grain layer of 10 mm or greater is formed whose C-axis direction inclination of a titanium a phase is, as viewed from the side of the slab to be hot rolled, in the range of 35 to 90° from the normal direction of the surface to be hot rolled. The titanium slab concerned is produced using an electron beam melting furnace by casting at an extraction rate of 1.0 cm/min or greater. | 12-22-2011 |
20110318597 | Titanium Material for Hot Rolling and Method of Producing the Same - The present invention provides a titanium material for hot rolling that enables reduction of defects occurring on the surface (in the case of a flat material or strip coil, including not only the flat surfaces but also the side surfaces and edges) owing to the hot rolling, and a method of producing the same, particularly to a titanium material for hot rolling enabling omission of an ingot breakdown process, and a method of producing the same, characterized in that it is a titanium material for hot rolling having dimples imparted by cold plastic deformation whose mean value of the heights (Wc) of the undulation profile elements is 0.2 to 1.5 mm and mean value of the lengths (WSm) thereof is 3 to 15 mm, and makes it possible to minimize surface defects occurring in hot rolling even if a process for breaking down the ingot is omitted. The dimples are formed by plastically deforming the surface of the titanium under cold condition using a steel tool having a tip shape of a radius of curvature of 3 to 30 mm or a steel sphere of a radius of 3 to 30 mm. | 12-29-2011 |
20120016190 | ENDOSCOPE TREATMENT INSTRUMENT - In this treatment tool for endoscope, a sheath includes, at the distal end thereof, a tubular extended part having a predetermined thickness in the radially outward direction from an inner peripheral face of a first hole and extending further to the distal-end side, and a passive electrode is disposed such as to surround the outer periphery of the extended part. | 01-19-2012 |
20120059373 | HIGH-FREQUENCY TREATMENT TOOL - A high-frequency treatment tool ( | 03-08-2012 |
20120189487 | BETA-TYPE TITANIUM ALLOY - The present invention provides a β-type titanium alloy that includes, by mass %, when Al: 2 to 5%, 1) Fe: 2 to 4%, Cr: 6.2 to 11%, and V: 4 to 10%, 2) Fe: 2 to 4%, Cr: 5 to 11%, and Mo: 4 to 10%, or 3) Fe: 2 to 4%, Cr: 5.5 to 11%, and Mo+V (total of Mo and V): 4 to 10% in range, and a balance of substantially Ti. These include Zr added in amounts of 1 to 4 mass %. Furthermore, by making the oxygen equivalent Q 0.15 to 0.30 or leaving the alloy in the work hardened state or by applying both, the tensile strength before aging heat treatment can be further increased. | 07-26-2012 |
20120220993 | TREATMENT DEVICE FOR ELECTROSURGERY - The treatment device for electrosurgery includes a sheath; a needle-like electrode portion that has a distal end and a proximal end, and treats a target site at the distal end; a first electrode that is provided to the distal end of the needle-like electrode portion; a second electrode of which the relative positional relationship with respect to the first electrode is fixed at a position separated from the first electrode toward the proximal end; an insulator that insulates the first electrode from the second electrode by being interposed between the first and second electrodes; a first conductive portion that applies a high-frequency current to the first electrode; and a second conductive portion that applies a high-frequency current to the second electrode wherein a plurality of electrodes, which become passive electrodes of the high-frequency current between the first electrode and the second electrode, is provided. | 08-30-2012 |
20130174949 | AUSTENITIC HIGH MN STAINLESS STEEL AND METHOD PRODUCTION OF SAME AND MEMBER USING THAT STEEL - Inexpensive stainless steel and inexpensive and high strength stainless steel which has excellent hydrogen environment embrittlement resistance even if used in a hydrogen resistant environment in over 40 MPa high pressure hydrogen gas or a hydrogen resistant environment in liquid hydrogen, characterized by containing, by mass %, C: 0.1% or less, Si: 0.4 to 1.5%, Mn: 8 to 11%, Cr: 15 to 17%, Ni: 5 to 8%, Cu: 1 to 4%, and N: 0.01 to less than 0.15% and having a balance of Fe and unavoidable impurities, having a volume rate of δ-ferrite of 10% or less, and having a long axis of δ-ferrite before annealing of 0.04 to 0.1 mm. | 07-11-2013 |
20130327448 | HIGH-STRENGTH alpha+beta TITANIUM ALLOY HOT-ROLLED SHEET EXCELLENT IN COLD COIL HANDLING PROPERTY AND PROCESS FOR PRODUCING THE SAME - A high-strength α+β type hot-rolled titanium alloy sheet containing 0.8 to 1.5 mass % Fe, 4.8 to 5.5 mass % Al, 0.030 mass % N, O and N, wherein cracks are prevented from spreading, wherein: (a) ND represents normal direction of a hot-rolled sheet; RD represents hot rolling direction; TD represents hot rolling width direction; θ represents the angle formed between c axis and ND; φ represents angle formed between plane including c axis and ND, and a plane including ND and TD; (b1) XND represents highest (0002) relative intensity of X-ray reflection by grains when θ is from 0° to 30°; (b2) XTD represents the highest (0002) relative intensity of the X-ray reflection caused by grains when θ is from 80° to 100° and φ is ±10°. (c) The high-strength α+β type hot-rolled titanium alloy sheet has a value for XTD/XND of at least 4.0. Q(%)=[O]+2.77·[N]. | 12-12-2013 |
20130327449 | alpha + beta Titanium Alloy Sheet Excellent In Cold Rollability And Cold Handling Property And Process For Producing The Same - An α+β type hot-rolled titanium alloy sheet, wherein: (a) ND represents the normal direction of a hot-rolled sheet; RD represents the hot rolling direction; TD represents the hot rolling width direction; θ represents the angle formed between the orientation of c axis and the ND; φ represents the angle formed between a plane including the orientation of the c axis and the ND, and a plane including the ND and the TD; (b1) XND represents the highest (0002) relative intensity of the X-ray reflection caused by crystal grains when θ is from 0° to 30° and φ is within the entire circumference; (b2) XTD represents the highest (0002) relative intensity of the X-ray reflection caused by crystal grains when θ is from 80° to 100° and φ is ±10°. (c) The α+β type titanium alloy sheet has a value for XTD/TND of at least 5.0. | 12-12-2013 |
20140249553 | HEMOSTATIC CLIP - A hemostatic clip includes: a clip body formed by folding an intermediate section of a belt-like member; and a holding tube. The clip body includes: a first member formed of a first metallic material that is elastically deformable; and a pair of second members that are formed of a second metallic material having a lower elastic strain limit than an elastic strain limit of the first metallic member and are connected to respective both ends of the first member. The holding tube is configured to change an opening width of the clip body by holding part of the clip body in the holding tube. | 09-04-2014 |
20140348697 | HEAT RESISTANT TITANIUM ALLOY SHEET EXCELLENT IN COLD WORKABILITY AND A METHOD OF PRODUCTION OF THE SAME - The present invention provides a heat resistant titanium alloy sheet excellent in cold workability having high temperature strength characteristics better than JIS Class 2 pure titanium and having a cold workability and high temperature oxidation resistance equal to or better than that of JIS Class 2 pure titanium and a method of production of the same, that is, a heat resistant titanium alloy sheet excellent in cold workability characterized by comprising, by mass %, 0.3 to 1.8% of Cu, 0.18% or less of oxygen, 0.30% or less of Fe, and, as needed, at least one of Sn, Zr, Mo, Nb, and Cr in a total of 0.3 to 1.5%, and the balance of Ti and less than 0.3% of impurity elements and by a β-phase and Ti | 11-27-2014 |
20150064055 | TITANIUM ALLOY FOR GOLF CLUB FACE - An α+β-type titanium alloy which, has a high Young's modulus and strength-ductility balance is provided as a material for a face of a driver, iron, or other golf club. | 03-05-2015 |