Patents by Inventor Yasushi Ichikawa

Yasushi Ichikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Carbon monoxide oxidizer
    Patent number: 7481982
    Abstract: A carbon monoxide oxidizer comprises an oxidant supply unit (4) that supplies an oxidant gas to a reformate gas, a mixing unit (5) that mixes the reformate gas with the oxidant gas, and a preferential oxidation catalyst unit (6) that removes carbon monoxide from a mixed gas using catalytic action. The mixing unit (5) comprises a stacked body (9) of plates (100A-100F). A rotating passage (101) that is formed in the stacked body (9) to rotate the flow of the mixed gas, thereby promoting mixing of the reformate gas with the oxidant gas by a rotating flow formed by the rotating passage (101).
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: January 27, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yasushi Ichikawa
  • GOLF BALL MATERIAL AND GOLF BALL
    Publication number: 20080287217
    Abstract: A mixture having good thermal stability, flow and moldability and suitable as a golf ball-forming material is obtained when a base resin comprising a (metal ion-neutralized) olefin-unsaturated carboxylic acid-unsaturated carboxylate ternary random copolymer and optionally a (metal ion-neutralized) olefin-unsaturated carboxylic acid binary random copolymer is blended with specific proportions of a fatty acid and/or fatty acid derivative and a basic inorganic metal compound capable of neutralizing acidic groups left unneutralized in the base resin and fatty acid. Using the same material, high-rebound golf balls can be effectively manufactured.
    Type: Application
    Filed: July 22, 2008
    Publication date: November 20, 2008
    Inventors: Rinya Takesue, Yasushi Ichikawa
  • Multi-piece solid golf ball
    Patent number: 7390852
    Abstract: In a multi-piece solid golf ball comprising a solid core, a mantle and a cover, the solid core is made of a rubber composition that includes a base rubber containing a polybutadiene synthesized using a rare-earth catalyst, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound and an inorganic filler. The mantle is made of a thermoplastic resin composition. The cover is made primarily of a thermoplastic polyurethane material. This construction provides the golf ball with a combination of outstanding flight performance and soft feel with cover's scuff resistance and coating's abrasion resistance, that is unprecedented.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: June 24, 2008
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Junji Hayashi, Yasumasa Shimizu, Hiroshi Higuchi, Yasushi Ichikawa
  • Manifold for Fuel Cell Stack
    Publication number: 20080090130
    Abstract: The interior of a manifold (1) comprises, for each of a plurality of fluid types supplied to a fuel cell stack (2), an interior side passage (11b-13b) connected to a fluid supply/discharge port (2f) of the stack, and an exterior side passage (11a-13a) which connects the interior side passage to an external pipe. The interior side passage is formed in tiered fashion for each of the fluid types, and one or all of the exterior side passages and interior side passages communicate via a volume portion (11c-13c) which passes vertically through the interior of the manifold in the tier direction. By providing the volume portion, which has a large passage sectional area, resistance acting on the fluid that flows into the stack can be reduced, and as a result, energy loss can be suppressed.
    Type: Application
    Filed: December 12, 2005
    Publication date: April 17, 2008
    Inventor: Yasushi Ichikawa
  • JOINT STRUCTURE FOR EARTHQUAKE-RESISTANT MEMBER AND CONSTRUCTION METHOD FOR THE SAME
    Publication number: 20070245643
    Abstract: Exemplary embodiments of a joint structure for an earthquake-resistant member can be provided at an intersect portion of a steel column extending in a substantially vertical direction and a steel beam extending in a substantially horizontal direction, and facilitated for joining an earthquake-resistant member to the intersect portion. The joint structure can include: a first joining plate located along the steel column without fixing the first joining plate to the steel column; a second joining plate located along the steel beam without fixing the second joining plate to the steel beam; a first movement-restraint member which restrains the first joining plate; and a second movement-restraint member which restrains the second joining plate. The earthquake-resistant member can be joined to the first joining plate and the second joining plate.
    Type: Application
    Filed: April 6, 2007
    Publication date: October 25, 2007
    Inventors: Yasushi Ichikawa, Hideaki Yoshikawa, Akira Wada
  • Golf ball materials and golf ball
    Patent number: 7211610
    Abstract: A golf ball material comprises a heated mixture having a melt index of at least 1.0 dg/min, which mixture is composed of (A) a thermoplastic resin, (B) a fatty acid or fatty acid derivative having a molecular weight of at least 280, and (C) a basic inorganic metal compound capable of neutralizing acidic groups in components A and B. The material including a highly neutralized ionomer resin has good thermal stability, flow characteristics and moldability. The invention is also directed at high-rebound golf balls which can be easily and efficiently manufactured using the same material.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: May 1, 2007
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Rinya Takesue, Yasushi Ichikawa
  • CO oxidizer
    Patent number: 7204964
    Abstract: A fuel cell system is proposed which is provided with a CO oxidizer having a compact agitator executing uniform mixing. The fuel cell system is provided with a reformer (2) performing reformate reactions to produce a hydrogen-rich reformate gas containing CO, a CO oxidizer (1) reducing the CO concentration in the reformate gas produced in the reformer (2), and a fuel cell performing power generation using reformate gas with a reduced CO concentration from the CO oxidizer. The CO oxidizer is provided with a CO removal catalyst (6) promoting oxidizing of CO. An oxidizing agent inlet (5) and an agitator (4) are provided upstream of the CO removal catalyst (6). The oxidizing agent inlet (5) supplies oxidizing agent to the reformate gas and the agitator (4) has a plurality of curved passages (8) having at least two curves.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: April 17, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yasushi Ichikawa
  • Golf ball material and golf ball
    Publication number: 20070060706
    Abstract: A mixture having good thermal stability, flow and moldability and suitable as a golf ball-forming material is obtained when a base resin comprising a (metal ion-neutralized) olefin-unsaturated carboxylic acid-unsaturated carboxylate ternary random copolymer and optionally a (metal ion-neutralized) olefin-unsaturated carboxylic acid binary random copolymer is blended with specific proportions of a fatty acid and/or fatty acid derivative and a basic inorganic metal compound capable of neutralizing acidic groups left unneutralized in the base resin and fatty acid. Using the same material, high-rebound golf balls can be effectively manufactured.
    Type: Application
    Filed: November 14, 2006
    Publication date: March 15, 2007
    Inventors: Rinya Takesue, Yasushi Ichikawa
  • Multi-piece solid golf ball
    Patent number: 7160940
    Abstract: In a multi-piece solid golf ball comprising a solid core, a mantle and a cover, the solid core is made of a rubber composition that includes a base rubber containing a polybutadiene synthesized using a rare-earth catalyst, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound and an inorganic filler. The mantle is made of a thermoplastic resin composition. The cover is made primarily of a thermoplastic polyurethane material. This construction provides the golf ball with a combination of outstanding flight performance and soft feel with cover's scuff resistance and coating's abrasion resistance, that is unprecedented.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: January 9, 2007
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Junji Hayashi, Yasumasa Shimizu, Hiroshi Higuchi, Yasushi Ichikawa
  • Multi-piece solid golf ball
    Publication number: 20060276596
    Abstract: In a multi-piece solid golf ball comprising a solid core, a mantle and a cover, the solid core is made of a rubber composition that includes a base rubber containing a polybutadiene synthesized using a rare-earth catalyst, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound and an inorganic filler. The mantle is made of a thermoplastic resin composition. The cover is made primarily of a thermoplastic polyurethane material. This construction provides the golf ball with a combination of outstanding flight performance and soft feel with cover's scuff resistance and coating's abrasion resistance, that is unprecedented.
    Type: Application
    Filed: August 11, 2006
    Publication date: December 7, 2006
    Inventors: Junji Hayashi, Yasumasa Shimizu, Hiroshi Higuchi, Yasushi Ichikawa
  • Multi-piece golf ball
    Patent number: 7086970
    Abstract: A multi-piece golf ball includes a core 30–40 mm in diameter, an intermediate layer including an outermost layer 0.5–2.0 mm thick, and a cover 0.5–2.0 mm thick. The core is a rubber composition mainly containing polybutadiene. The outermost layer is a resin material containing an ionomer resin in an amount of 30% by weight or more. The cover material is obtained by dispersedly blending a silicone powder in a main resin containing an ionomer resin in an amount of 50% by weight or more. The hardness of the outermost layer is harder than the hardness of the core's a center portion. The hardness of the cover is harder than the hardness of the outermost layer. A difference in hardness between the cover and the center portion of the core satisfies a relation of 10?(Durometer D hardness of cover?Durometer D hardness of center portion of core?40.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: August 8, 2006
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Junji Hayashi, Hisashi Yamagishi, Yasumasa Shimizu, Yasushi Ichikawa
  • Golf ball material and golf ball
    Patent number: 7084198
    Abstract: A golf ball material comprising a heated mixture of (a) a random copolymer containing at least 5% by weight of a metal ion-neutralized unsaturated carboxylic acid having an acid content of at least 16% by weight, (b) a thermoplastic elastomer, (c) a fatty acid and/or derivative thereof having a molecular weight of 280–1,500, and (d) a basic metal compound capable of neutralizing unneutralized acid groups in components (a) and (c) has good thermal stability, flow and moldability, and can be molded into a part exhibiting excellent rebound, ensuring the manufacture of golf balls with high performance.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: August 1, 2006
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Rinya Takesue, Yasushi Ichikawa
  • Golf ball
    Patent number: 7059977
    Abstract: In a golf ball comprising a core and a cover of one or more layers, the cover or its layer is formed primarily of a mixture comprising a blend of (a) an ionomer resin in the form of an alkali metal-neutralized ethylene-acrylic acid copolymer and (b) an olefin-unsaturated carboxylic acid copolymer or an olefin-unsaturated carboxylic acid-unsaturated carboxylate copolymer, and (c) a thermoplastic elastomer. The golf ball exhibits good surface finish and has improved rebound, feel and durability.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: June 13, 2006
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Rinya Takesue, Yasushi Ichikawa
  • Joint structure for antiseismic reinforcement
    Publication number: 20060112652
    Abstract: A joint structure for antiseismic reinforcement includes at least one structural member having a longitudinal axis and at least one antiseismic reinforcement member. Each antiseismic reinforcement member has a longitudinal axis located in a plane that is generally parallel to the longitudinal axis of the structural member. The longitudinal axis of the antiseismic reinforcement member is inclined with respect to the longitudinal axis of the structural member. A metal fitting connects each of the antiseismic reinforcement members to the structural member. The metal fitting is not fixed to the structural member. At least one constraining member is fixed to the structural member close to or abutting an edge portion of the metal fitting. The constraining member bears a force applied to the metal fitting in a direction generally parallel to the longitudinal axis of the structural member.
    Type: Application
    Filed: November 17, 2005
    Publication date: June 1, 2006
    Inventors: Yasushi Ichikawa, Eiichiro Saeki, Akira Wada
  • Carbon monoxide oxidizer
    Publication number: 20060115394
    Abstract: A carbon monoxide oxidizer comprises an oxidant supply unit (4) that supplies an oxidant gas to a reformate gas, a mixing unit (5) that mixes the reformate gas with the oxidant gas, and a preferential oxidation catalyst unit (6) that removes carbon monoxide from a mixed gas using catalytic action. The mixing unit (5) comprises a stacked body (9) of plates (100A-100F). A rotating passage (101) that is formed in the stacked body (9) to rotate the flow of the mixed gas, thereby promoting mixing of the reformate gas with the oxidant gas by a rotating flow formed by the rotating passage (101).
    Type: Application
    Filed: December 11, 2003
    Publication date: June 1, 2006
    Inventor: Yasushi Ichikawa
  • Golf ball
    Patent number: 7048650
    Abstract: A layer of a golf ball is formed of a golf ball-forming composition in which a silicone rubber powder, silicone resin powder or composite powder thereof is blended in an elastomer, resin or butadiene rubber base. The composition is easy to remove from a mold after molding, and the golf ball has advantages including high durability against consecutive strikes, and good feel and rebound even at low temperature.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: May 23, 2006
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Yasushi Ichikawa, Rinya Takesue, Eiji Takehana
  • Multi-piece golf ball
    Patent number: 7037215
    Abstract: A multi-piece golf ball includes a core having a diameter of 30 to 40 mm, at least one intermediate layer including the outermost layer having a thickness of 0.5 to 2.0 mm, and a cover having a thickness of 1.0 to 3.0 mm. The cover is made from a material obtained by dispersedly blending at least one kind of silicone powder selected from a silicone rubber powder, a silicon resin powder, and a composite powder thereof, in a main resin component containing an ionomer resin in an amount of 50% by weight or more. Dimples of the number of 300 to 550 pieces are formed in the surface of the golf ball in such a manner that a dimple total volume ratio VR is in a range of 0.85% or less. The multi-piece golf ball is excellent in resilience, flight distance characteristic, and feel of hitting.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: May 2, 2006
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Junji Hayashi, Hisashi Yamagishi, Yasumasa Shimizu, Yasushi Ichikawa
  • Iron golf club head
    Patent number: D545386
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: June 26, 2007
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Vinh-Duy Thai Nguyen, Yasushi Ichikawa, David L. Walker, Hideo Matsunaga
  • Golf club head
    Patent number: D560262
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: January 22, 2008
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Vinh-Duy Thai Nguyen, David L. Walker, Yasushi Ichikawa
  • Golf club head
    Patent number: D568427
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: May 6, 2008
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Vinh-Duy Thai Nguyen, David L. Walker, Yasushi Ichikawa