Patents by Inventor Masahiro Watanuki

Masahiro Watanuki 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).

  • Joint boot obtained from chlorosulfonated ethylene-alpha-olefin copolymer composition
    Patent number: 6025043
    Abstract: A chlorosulfonated ethylene-.alpha.-olefin copolymer composition comprising a chlorosulfonated ethylene-.alpha.-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar joint boot obtained by molding and vulcanizing the chlorosulfonated ethylene-.alpha.-olefin copolymer composition. The copolymer composition is excellent in the tensile characteristics at room temperature and low temperature, in the compression set under a low-temperature atmosphere, and in the fatigue resistance.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: February 15, 2000
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Mitsuhiro Kamezawa, Hideyoshi Nakamura, Masahiro Watanuki
  • Chlorosulfonated ethylene-.alpha.-olefin copolymer composition
    Patent number: 5916977
    Abstract: A chlorosulfonated ethylene-.alpha.-olefin copolymer composition comprising a chlorosulfonated ethylene-.alpha.-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar joint boot obtained by molding and vulcanizing the chlorosulfonated ethylene-.alpha.-olefin copolymer composition. The copolymer composition is excellent in the tensile characteristics at room temperature and low temperature, in the compression set under a low-temperature atmosphere, and in the fatigue resistance.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 29, 1999
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Mitsuhiro Kamezawa, Hideyoshi Nakamura, Masahiro Watanuki