Patents by Inventor Hiroshi Ooyama

Hiroshi Ooyama 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: 6500561
    Abstract: An automobile weatherstripping includes an extrusion-formed part and a mold-formed part, the mold-formed part being welded and integrated with the extrusion-formed part. The extrusion-formed part is made of an olefin elastomer and the mold-formed part is made of a resin composition containing an olefin resin, ethylene-&agr;-olefin copolymer rubber, hydrogenated aromatic vinyl conjugated diene compounds block copolymer mineral oil and at least one of natural rubber and butadiene rubber in predetermined proportions. The extrusion-formed part and the mold-formed part have a sufficient level of bonding strength with no bonding agent layer being used therebetween.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: December 31, 2002
    Assignees: Toyoda Gosei Co., Ltd., Sumitomo Chemical Company, Limited
    Inventors: Toru Yoshida, Masayoshi Ichikawa, Masanori Aritake, Hironobu Shigematsu, Hiroshi Ooyama, Tatsuo Hamanaka
  • Patent number: 6210797
    Abstract: Disclosed is a casing for storing an airbag for an airbag restraint system, cavingg: a main body formed of a material comprising a thermoplastic elastomer composition which is prepared by: mixing 100 parts by weight of a copolymer composition with 0.05 to 0.5 parts by weight of a lubricant comprising higher fatty acid amide to obtain a mixture; and dynamically heat-treating the mixture in the presence of an organic peroxide and an auxiliary crosslinking agent. The copolymer composition contains: (A) 20 to 50 parts by weight of an olefin copolymer resin of propylene and one or two kinds of 1-olefin other than propylene; (B) 10 to 50 parts by weight of ethylene-propylene copolymer rubber having a Mooney viscosity (ML1+4, 100° C.) ranging from 30 to 60; (C) 10 to 70 parts by weight of ethylene-propylene-nonconjugated diene copolymer rubber having a Mooney viscosity (ML1+4, 100° C.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: April 3, 2001
    Assignees: Nihon Plast Co., Ltd., Sumitomo Chemical Company, Ltd.
    Inventors: Izumi Sato, Tomokazu Sugiyama, Tatsuo Hamanaka, Hiroshi Ooyama
  • Patent number: 6110546
    Abstract: An automobile weather strip including at least (a) a weather strip body formed from a first composition including at least one rubber polymer and at least one chemical suitable for effecting sulfur-vulcanization, and (b) a decorative layer formed from a second composition including at least one thermoplastic elastomer and hydrotalcite as a discoloration-preventing agent for the decorative layer. The decorative layer is directly adhered onto the weather strip body.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: August 29, 2000
    Assignees: Toyoda Gosei Co., Ltd, Sumitomo Chemical Company, Limited
    Inventors: Hidenobu Honda, Masayoshi Ichikawa, Katsumi Nakashima, Hironobu Shigematsu, Hiroshi Ooyama, Takashi Sakakibara
  • Patent number: 6060551
    Abstract: An air bag cover for a passenger of an automobile, obtained by molding a thermoplastic elastomer composition which comprises an olefin-based resin (A) and an ethylene-.alpha.-olefin-based copolymer rubber (B), and provides a 2 mm thick molded body composed of the composition having a linear thermal expansion coefficient at a temperature of -40 to 120.degree. C. of 13.5.times.10.sup.-5 mm/m.degree.C. or less, a fracture elongation at weld part of 50% or more, and an Izod impact strength at a temperature of -50.degree. C. or more of 35 kg.multidot.cm/cm or more, or revealing Non Break.According to the present invention, there can be provided an air bag cover for a passenger side seat of an automobile, which does not cause building up or separation from surrounding parts when installed and set into a dash board of the automobile, and has excellent safety in spreading.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: May 9, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Ooyama, Tatsuo Hamanaka