Patents by Inventor Ryoichi Muroi

Ryoichi Muroi 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: 4843477
    Abstract: A vehicle television receiver system comprises a television receiver be easily attached to and detached from the vehicle, engagement means attached to the vehicle and arranged to be actuated to make the television receiver be in an engaged condition when the television receiver is housed in a specific place of the vehicle and release means for making the engagement means and the television receiver be in a released condition when the release means is operated.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: June 27, 1989
    Assignees: Toyoda Gosei Co., Ltd., Matsushita Electric Indutrial Co., Ltd.
    Inventors: Junichi Mizutani, Ryoichi Muroi, Chikahisa Hayashi, Yoshio Sano, Moriyuki Komatsu
  • Patent number: 4465715
    Abstract: A process for the pretreatment of a polyolefin product before coating consisting essentially of the steps of treating the surface of the polyolefin product before coating using an organic solvent having a solubility parameter (SP value) equal or similar to that of the polyolefin and subsequently applying a plasma treating thereto in the presence of an active gas by microwave treating the active gas under vacuum. As a result of the process, the surface of the polyolefin product is activated and the adhesion of the coating film is improved.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: August 14, 1984
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Katsuhide Manabe, Yutaka Sato, Ryoichi Muroi
  • Patent number: 4305981
    Abstract: Elastic metallized decorative moldings are disclosed composed of a modified polyurethane resin as a substrate coated on the surface thereof with a metallized layer, the polyurethane resin comprising 50-95 parts by weight of a thermoplastic polyurethane resin incorporated with 5-50 parts by weight of an acrylonitrile-butadiene-styrene resin comprised of at least 75% by weight of an acrylonitrile-styrene component and not more than 25% by weight of a butadiene component. Such elastic metallized decorative moldings are useful as impact-absorbing materials with beautiful appearance for various structures, especially as bumper moldings for motor vehicles.
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: December 15, 1981
    Assignee: Toyoda Synthetics Co., Ltd.
    Inventors: Ryoichi Muroi, Toshiyasu Ito, Takao Nomura, Tsugumi Sanmiya, Yasuhiro Mishima, Yoshiro Umemoto
  • Patent number: 3981958
    Abstract: A new graft copolymer composed of an ethylene/propylene/non-conjugated diene terpolymer backbone and a homopolymerized or copolymerized methacrylic ester graft moiety. The graft copolymer is produced by grafting a lower alkyl methacrylate alone or in mixture with other ethylenically unsaturated monomer or monomers copolymerizable therewith to an ethylene/propylene/non-conjugated diene terpolymer in the presence of a radical polymerization initiator. The graft copolymer is useful as resinous or rubbery component in a coating or binding composition for treating various inorganic and organic materials including glass and fibers.
    Type: Grant
    Filed: April 18, 1974
    Date of Patent: September 21, 1976
    Assignee: Toyoda Gosei Kabushiki-Kaisha (Toyoda Synthetics Co., Ltd.)
    Inventors: Kunihiko Nakashima, Ryoichi Muroi, Mitsuo Imai, Kenji Sato