Patents by Inventor Hideyuki Okuyama

Hideyuki Okuyama 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: 6926395
    Abstract: An ink tube (10) for an ink jet printer is formed by using a thermoplastic elastomer composition, having a Shore-A-hardness of not more than 70, which comprises an olefin thermoplastic resin and a rubber component, containing not less than 30 wt % of butyl rubber, which is dispersed finely by dynamic vulcanization the rubber component in the olefin thermoplastic resin. It is preferable to extrude the thermoplastic elastomer composition tubularly by a resin extrusion method.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: August 9, 2005
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Hideyuki Okuyama
  • Publication number: 20040225061
    Abstract: An elastomer composition is prepared that contains a rubber component (A) containing at least one of diene rubber and EPDM rubber; a mixture composition (B) containing hydrogenated styrene thermoplastic elastomer and olefin resin; and a styrene thermoplastic elastomer (C) having double bonds partly left, wherein the styrene thermoplastic elastomer (C) is blended at a ratio of not less than 2 parts by weight and not more than 100 parts by weight with respect to 200 parts by weight of the mixture composition (B), and the rubber component (A) is dispersed by dynamic crosslinking in the mixture composition (B) having the styrene thermoplastic elastomer (C) dispersed therein. A rubber roller is formed by using the elastomer composition. The elastomer composition is excellent in wear resistance, and the rubber roller made of the elastomer composition is excellent in wear resistance at the time of idling rotation.
    Type: Application
    Filed: May 6, 2004
    Publication date: November 11, 2004
    Inventors: Mutsuki Sugimoto, Hideyuki Okuyama
  • Patent number: 6793611
    Abstract: A paper-feeding roller (1) formed by cylindrically molding a thermoplastic elastomer composition containing a thermoplastic resin or a thermoplastic elastomer in which a rubber or a thermoplastic elastomer that can be crosslinked is dispersed by dynamic crosslinking. A surface layer of the paper-feeding roller (1) contains titanium oxide at not less than 1.5% nor more than 50% in a volume fraction.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 21, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Hideyuki Okuyama
  • Publication number: 20040135129
    Abstract: A conductive elastomer composition having rubber-like elasticity and flexibility and thermoplastic-resin-like moldability and realizing a high conductivity. The conductive elastomer composition includes a thermoplastic elastomer composition (A) containing a compound (A1) composed of a thermoplastic resin and/or a thermoplastic elastomer and a compound (A2), composed of a crosslinkable rubber and/or a crosslinkable thermoplastic elastomer, dispersed in the compound (A1) by dynamically crosslinking the compound (A2); and an ionic-conductive agent (B), containing a metal salt and a polyether-containing block copolymer resin, dispersed in the thermoplastic elastomer composition (A). The conductive elastomer composition may contain carbon black (C).
    Type: Application
    Filed: July 22, 2003
    Publication date: July 15, 2004
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Toshiaki Sakaki, Hideyuki Okuyama
  • Publication number: 20040134554
    Abstract: An ink tube (10) for an ink jet printer is formed by using a thermoplastic elastomer composition, having a Shore-A-hardness of not more than 70, which comprises an olefin thermoplastic resin and a rubber component, containing not less than 30 wt % of butyl rubber, which is dispersed finely by dynamic vulcanization the rubber component in the olefin thermoplastic resin. It is preferable to extrude the thermoplastic elastomer composition tubularly by a resin extrusion method.
    Type: Application
    Filed: October 27, 2003
    Publication date: July 15, 2004
    Inventor: Hideyuki Okuyama
  • Patent number: 6602957
    Abstract: The present invention provides a thermoplastic elastomer composition comprising a high-molecular-weight thermoplastic elastomer, a low-molecular-weight thermoplastic elastomer affinitive for the high-molecular-weight thermoplastic elastomer, and a rubber component. The ratio of the number-average molecular weight (Mn1) of the high-molecular-weight thermoplastic elastomer to the number-average molecular weight (Mn2) of the low-molecular-weight thermoplastic elastomer is not less than 1.2 nor more than 500. The rubber is dynamically cross-linked and dispersed in the thermoplastic elastomers.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: August 5, 2003
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Yoshihisa Mizumoto, Hideyuki Okuyama
  • Publication number: 20030118813
    Abstract: A paper-feeding roller (1) formed by cylindrically molding a thermoplastic elastomer composition containing a thermoplastic resin or a thermoplastic elastomer in which a rubber or a thermoplastic elastomer that can be crosslinked is dispersed by dynamic crosslinking. A surface layer of the paper-feeding roller (1) contains titanium oxide at not less than 1.5% nor more than 50% in a volume fraction.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 26, 2003
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Hideyuki Okuyama
  • Publication number: 20030060566
    Abstract: The present invention provides a thermoplastic elastomer composition comprising a high-molecular-weight thermoplastic elastomer, a low-molecular-weight thermoplastic elastomer affinitive for the high-molecular-weight thermoplastic elastomer, and a rubber component. The ratio of the number-average molecular weight (Mn1) of the high-molecular-weight thermoplastic elastomer to the number-average molecular weight (Mn2) of the low-molecular-weight thermoplastic elastomer is not less than 1.2 nor more than 500. The rubber is dynamically cross-linked and dispersed in the thermoplastic elastomers.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 27, 2003
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Yoshihisa Mizumoto, Hideyuki Okuyama
  • Patent number: 6481707
    Abstract: A paper-feeding roller, made of a cylindrical elastic material, which is used for a printing apparatus of ink jet type, with the paper-feeding roller mounted on a core, wherein a friction coefficient (&mgr;) of the paper-feeding roller is set not less than 1.5; and the following relationship is established among the friction coefficient (&mgr;) of the paper-feeding roller, a tensile elongation E (%) thereof, and a fracture-time strength T (MPa) thereof: 15>(E×T)/(&mgr;×100)≧5.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: November 19, 2002
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Toshiro Matsuo, Hideyuki Okuyama
  • Patent number: 6476140
    Abstract: The present invention provides a thermoplastic elastomer composition comprising a high-molecular-weight thermoplastic elastomer, a low-molecular-weight thermoplastic elastomer affinitive for the high-molecular-weight thermoplastic elastomer, and a rubber component. The ratio of the number-average molecular weight (Mn1) of the high-molecular-weight thermoplastic elastomer to the number-average molecular weight (Mn2) of the low-molecular-weight thermoplastic elastomer is not less than 1.2 nor more than 500. The rubber is dynamically cross-linked and dispersed in the thermoplastic elastomers.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: November 5, 2002
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Yoshihisa Mizumoto, Hideyuki Okuyama
  • Publication number: 20020145247
    Abstract: A paper-feeding roller, made of a cylindrical elastic material, which is used for a printing apparatus of ink jet type, with the paper-feeding roller mounted on a core,
    Type: Application
    Filed: July 18, 2001
    Publication date: October 10, 2002
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Toshiro Matsuo, Hideyuki Okuyama
  • Publication number: 20020013203
    Abstract: The present invention provides a thermoplastic elastomer composition comprising a high-molecular-weight thermoplastic elastomer, a low-molecular-weight thermoplastic elastomer affinitive for the high-molecular-weight thermoplastic elastomer, and a rubber component. The ratio of the number-average molecular weight (Mn1) of the high-molecular-weight thermoplastic elastomer to the number-average molecular weight (Mn2) of the low-molecular-weight thermoplastic elastomer is not less than 1.2 nor more than 500. The rubber is dynamically cross-linked and dispersed in the thermoplastic elastomers.
    Type: Application
    Filed: May 23, 2001
    Publication date: January 31, 2002
    Inventors: Takayuki Hattori, Tetsuo Mizoguchi, Yoshihisa Mizumoto, Hideyuki Okuyama
  • Patent number: 6184295
    Abstract: A rubber composition containing 20 parts by weight-200 parts by weight of hydrogenated styrene thermoplastic elastomer and poly-olefin for 100 parts by weight of rubber which is dynamically vulcanized with a resin vulcanizing agent to disperse the rubber in a mixture of the hydrogenated styrene thermoplastic elastomer and the poly-olefin.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: February 6, 2001
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Hideyuki Okuyama
  • Patent number: 5403117
    Abstract: The present invention provides pavement and a paving material in which a large quantity of aggregates are bound with one another by a hot melt of thermoplastic resin powder, and also provides producing methods of such pavement and such paving material. The thermoplastic resin powder is neither limited in pot life, nor influenced by working conditions and weather conditions at the time when pavement is laid at a job site. Accordingly, uniform strength can be given to the resulting pavement or paving material. Further, the resulting pavement or paving material is excellent in weather resistance, elasticity and flexibility. Thus, the pavement of the present invention can be suitably used as pavement at play ground, parks, roads and the like. It is also easy to amend pavement, as necessary, after laid. The pavement producing method of the present invention can readily and efficiently produce the pavement.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: April 4, 1995
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hideyuki Okuyama, Tetsuya Kojimoto, Masakazu Tanaka