Patents by Inventor Kazuhisa Senda

Kazuhisa Senda 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).

  • Patent number: 7799484
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an HDD, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: September 21, 2010
    Assignee: NOK Corporation
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
  • Patent number: 7749635
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an hard disc drive, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: July 6, 2010
    Assignee: NOK Corporation
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
  • Patent number: 7654538
    Abstract: A high-performance gasket (1) capable of coping with a reduction in size and developing a sealing property without producing a squeeze-out at the time of attachment and using a material having a hardness range of 30 to 80 degrees (JIS durometer type A), wherein the requirement of W1/W0<0.9 is satisfied where the bonding width of a base part (1a) is (W0) and the width thereof at a position half a height from the bonding part of the base part (1a) to the tip end of a main bead part (2) is (W1), the requirement of 1.15<H/W0<1.80 is satisfied where the height from the bonding part of the base part (1a) to the tip end of the main bead part (2) is (H), the requirement of L/W0>=3 is satisfied where the length of the non-bonded portion of the base part (1a) around the cross-section thereof excluding the bonded portion is (L), and the compressibility of the gasket when compressed is 13.5% or higher.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: February 2, 2010
    Assignee: NOK Corporation
    Inventors: Nobuyuki Oka, Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda, Masayuki Kishimoto, Shunji Ueda, Nobuyuki Shintaku
  • Publication number: 20070190390
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an hard disc drive, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Application
    Filed: April 9, 2007
    Publication date: August 16, 2007
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
  • Publication number: 20070154769
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an HDD, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 5, 2007
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
  • Publication number: 20070148524
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an HDD, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Application
    Filed: March 14, 2007
    Publication date: June 28, 2007
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
  • Publication number: 20070148525
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an HDD, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Application
    Filed: March 14, 2007
    Publication date: June 28, 2007
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
  • Patent number: 7099111
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10–100 parts by weight of polypropylene type resin, 20–130 parts by weight of a plasticizer and 0.1–10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 29, 2006
    Assignee: NOK Corporation
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Publication number: 20060185881
    Abstract: The present invention relates to a hermetic structure having a flat cable. Liquid rubber is charged into a gap to be sealed, the charged liquid rubber is subjected to a physical action at the normal temperature and under the normal pressure, and the liquid rubber is cured to form a seal. By forming the seal in this manner, the limitation of heat resistance and pressure resistance is moderated, the flexibility of selection of materials for various constituent members is enhanced, and the structure is simplified.
    Type: Application
    Filed: April 19, 2006
    Publication date: August 24, 2006
    Inventors: Kenji Minoshima, Kazuhisa Senda, Tamotsu Yoshida, Akihiko Ikeda
  • Patent number: 7074357
    Abstract: A film-integrated gasket comprising a resin film and an adhesive rubber layer directly molded on the resin film. The adhesive rubber layer is molded from addition reaction type silicone rubber. The adhesive rubber layer can have a reduced thickness and can prevent positional alignment failure, making it suitable for a thin seal that can be used in a fuel cell, a secondary battery, a condenser, etc. without contamination of electrolytic solution, catalyst, etc. used in the cells.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: July 11, 2006
    Assignee: NOK Corporation
    Inventors: Kazuhisa Senda, Osamu Ando
  • Publication number: 20060146444
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10-100 parts by weight of polypropylene type resin, 20-130 parts by weight of a plasticizer and 0.1-10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Application
    Filed: March 6, 2006
    Publication date: July 6, 2006
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Patent number: 7050263
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10–100 parts by weight of polypropylene type resin, 20–130 parts by weight of a plasticizer and 0.1–10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: May 23, 2006
    Assignee: NOK Corporation
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Publication number: 20060074170
    Abstract: According to the present invention, provided is a thermoplastic elastomer composition, comprising an ethylene-propylene-nonconjugated diene ternary copolymer or an ethylene-propylene binary copolymer, a crystalline polyolefin resin, a non-aromatic softening agent, and an organic peroxide, in which the crystalline polyolefin resin has from 0.1 g/10 min. to 100 g/10 min. of melt flow rate which is measured in accordance with JIS K7210 under conditions of 230° C. and 21.18 N and is contained in an amount of from 10 to 150 parts by weight every 100 parts by weight of the copolymer; the non-aromatic softening agent has a kinetic viscosity of 300 mm2/s or more at 40° C. and is contained in an amount of from 20 to 150 parts by weight every 100 parts by weight of the copolymer; the organic peroxide is contained in an amount of from 0.1 to 10 parts by weight every 100 parts by weight of the copolymer; and hardness measured by a JIS type A durometer is from 30 to 70 degrees.
    Type: Application
    Filed: October 30, 2003
    Publication date: April 6, 2006
    Applicant: NOK CORPOATION
    Inventors: Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda
  • Publication number: 20060032653
    Abstract: The present invention relates to a hermetic structure having a flat cable. Liquid rubber is charged into a gap to be sealed, the charged liquid rubber is subjected to a physical action at the normal temperature and under the normal pressure, and the liquid rubber is cured to form a seal. By forming the seal in this manner, the limitation of heat resistance and pressure resistance is moderated, the flexibility of selection of materials for various constituent members is enhanced, and the structure is simplified.
    Type: Application
    Filed: April 10, 2003
    Publication date: February 16, 2006
    Inventors: Kenji Minoshima, Kazuhisa Senda, Tamotsu Yoshida, Akihiko Ikeda
  • Publication number: 20050248101
    Abstract: A high-performance gasket (1) capable of coping with a reduction in size and developing a sealing property without producing a squeeze-out at the time of attachment and using a material having a hardness range of 30 to 80 degrees (JIS durometer type A), wherein the requirement of W1/W0<0.9 is satisfied where the bonding width of a base part (1a) is (W0) and the width thereof at a position half a height from the bonding part of the base part (1a) to the tip end of a main bead part (2) is (W1), the requirement of 1.15<H/W0<1.80 is satisfied where the height from the bonding part of the base part (1a) to the tip end of the main bead part (2) is (H), the requirement of L/W0>=3 is satisfied where the length of the non-bonded portion of the base part (1a) around the cross-section thereof excluding the bonded portion is (L), and the compressibility of the gasket when compressed is 13.5% or higher.
    Type: Application
    Filed: August 29, 2003
    Publication date: November 10, 2005
    Inventors: Nobuyuki Oka, Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda, Masayuki Kishimoto, Shunji Ueda, Nobuyuki Shintaku
  • Publication number: 20050153095
    Abstract: A metal- or resin-integrated gasket, which comprises a cured product layer of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, and a metal plate or a resin plate, the cured product layer being provided on at least one surface of the metal plate or the resin plate. The metal- or resin-integrated gasket has distinguished heat resistance and oil resistance and also a good environmental adaptability without using any organic solvent and thus is used as a suitable gasket for automobile engine cylinder heads, engine oil pans or engine intake-exhaust manifolds.
    Type: Application
    Filed: October 3, 2003
    Publication date: July 14, 2005
    Inventors: Kazuhisa Senda, Yoshiki Nakagawa
  • Publication number: 20050104303
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10-100 parts by weight of polypropylene type resin, 20-130 parts by weight of a plasticizer and 0.1-10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Application
    Filed: November 4, 2003
    Publication date: May 19, 2005
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Publication number: 20050020740
    Abstract: A rubber composition for fuel cell seals, HDD top cover gaskets or cable connector seals is disclosed. The rubber composition comprises a specific ethylene/?-olefin/non-conjugated polyene copolymer [A], a specific organopolysiloxane [B] and an SiH group-containing compound [C], with the weight ratio of [A]:[B] being 100:0 to 5:95. A fuel cell sealing material, HDD top cover gasket material, cable connector sealing material, fuel cell seal, HDD top cover gasket and cable connector seal according to the present invention comprise the composition. A fuel cell according to the present invention includes the fuel cell seal. A hard disk drive of the present invention includes the gasket. An automotive cable connector according to the present invention is sealed by the composition. The invention provides a crosslinkable rubber composition that has good high-speed moldability and can give fuel cell seals excellent in resistances to heat, acids and gas permeation.
    Type: Application
    Filed: December 26, 2002
    Publication date: January 27, 2005
    Inventors: Shin-ya Matsunaga, Takashi Hakuta, Masaaki Kawasaki, Masashi Kudo, Yoshifumi Kojima, Kazuhisa Senda
  • Patent number: 6814359
    Abstract: A film-integrated gasket comprising a resin film and an adhesive rubber layer directly molded on the resin film, where the adhesive rubber layer is molded in an inverted T-type stepped wall cross-section from addition reaction type silicone rubber, can satisfy required reduction in thickness, prevention of positional alignment failure, etc. for a thin seal and thus can be suitably used in a fuel cell, a secondary battery, a condenser, etc. without contamination of electrolytic solution, catalyst, etc. used in the cells.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: November 9, 2004
    Assignee: NOK Corporation
    Inventors: Kazuhisa Senda, Osamu Ando
  • Publication number: 20040075224
    Abstract: In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an HDD, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.
    Type: Application
    Filed: August 7, 2003
    Publication date: April 22, 2004
    Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue