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).
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Patent number: 7799484Abstract: 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: GrantFiled: March 14, 2007Date of Patent: September 21, 2010Assignee: NOK CorporationInventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
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Patent number: 7749635Abstract: 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: GrantFiled: February 13, 2002Date of Patent: July 6, 2010Assignee: NOK CorporationInventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
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Patent number: 7654538Abstract: 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: GrantFiled: August 29, 2003Date of Patent: February 2, 2010Assignee: NOK CorporationInventors: Nobuyuki Oka, Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda, Masayuki Kishimoto, Shunji Ueda, Nobuyuki Shintaku
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Publication number: 20070190390Abstract: 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: ApplicationFiled: April 9, 2007Publication date: August 16, 2007Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
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Publication number: 20070154769Abstract: 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: ApplicationFiled: March 14, 2007Publication date: July 5, 2007Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
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Publication number: 20070148524Abstract: 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: ApplicationFiled: March 14, 2007Publication date: June 28, 2007Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
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Publication number: 20070148525Abstract: 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: ApplicationFiled: March 14, 2007Publication date: June 28, 2007Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue
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Patent number: 7099111Abstract: 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: GrantFiled: March 6, 2006Date of Patent: August 29, 2006Assignee: NOK CorporationInventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
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Publication number: 20060185881Abstract: 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: ApplicationFiled: April 19, 2006Publication date: August 24, 2006Inventors: Kenji Minoshima, Kazuhisa Senda, Tamotsu Yoshida, Akihiko Ikeda
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Patent number: 7074357Abstract: 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: GrantFiled: July 16, 2003Date of Patent: July 11, 2006Assignee: NOK CorporationInventors: Kazuhisa Senda, Osamu Ando
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Publication number: 20060146444Abstract: 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: ApplicationFiled: March 6, 2006Publication date: July 6, 2006Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
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Patent number: 7050263Abstract: 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: GrantFiled: November 4, 2003Date of Patent: May 23, 2006Assignee: NOK CorporationInventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
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Publication number: 20060074170Abstract: 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: ApplicationFiled: October 30, 2003Publication date: April 6, 2006Applicant: NOK CORPOATIONInventors: Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda
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Publication number: 20060032653Abstract: 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: ApplicationFiled: April 10, 2003Publication date: February 16, 2006Inventors: Kenji Minoshima, Kazuhisa Senda, Tamotsu Yoshida, Akihiko Ikeda
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Publication number: 20050248101Abstract: 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: ApplicationFiled: August 29, 2003Publication date: November 10, 2005Inventors: Nobuyuki Oka, Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda, Masayuki Kishimoto, Shunji Ueda, Nobuyuki Shintaku
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Publication number: 20050153095Abstract: 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: ApplicationFiled: October 3, 2003Publication date: July 14, 2005Inventors: Kazuhisa Senda, Yoshiki Nakagawa
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Publication number: 20050104303Abstract: 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: ApplicationFiled: November 4, 2003Publication date: May 19, 2005Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
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Publication number: 20050020740Abstract: 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: ApplicationFiled: December 26, 2002Publication date: January 27, 2005Inventors: Shin-ya Matsunaga, Takashi Hakuta, Masaaki Kawasaki, Masashi Kudo, Yoshifumi Kojima, Kazuhisa Senda
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Patent number: 6814359Abstract: 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: GrantFiled: July 23, 2001Date of Patent: November 9, 2004Assignee: NOK CorporationInventors: Kazuhisa Senda, Osamu Ando
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Publication number: 20040075224Abstract: 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: ApplicationFiled: August 7, 2003Publication date: April 22, 2004Inventors: Yuichi Kuroki, Kazuhisa Senda, Yoshihiro Kurano, Tomohiro Inoue