Patents by Inventor Noriyasu Yasuda

Noriyasu Yasuda 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).

  • Modifier for resin and rubber
    Patent number: 5703167
    Abstract: A modifier for resin and rubber of which an active ingredient is a reaction product of a styrene-maleic anhydride copolymer (A) with a poly(alkylene oxide) monoalkyl ether (B), and/or a metal salt thereof, which modifier improves processability and properties of resins or rubbers. For example, the modifier provides resins or rubbers with antistatic properties. It also enhances the dispersibility of additives, e.g., a flame retardant or fillers incorporated in the resin or the rubber, and provides resins or rubbers with, for example, excellent flame retardancy and prevents the additive or the filler from blooming.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: December 30, 1997
    Assignees: Marubishi Oil Chemical Co., Ltd., Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Haruhiko Hisada, Kenichi Hosoda, Masahide Yoshiya, Yoshiyuki Komori, Noboru Yamaguchi, Tohru Fujiki, Noriyasu Yasuda
  • Rubber compositions and vulcanized rubber compositions
    Patent number: 5344881
    Abstract: A rubber composition which is vulcanizable with organic peroxides and provides vulcanized rubber excellent in oil resistance, heat resistance, low-temperature resistance and compression set.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: September 6, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Keisaku Yamamoto, Yoshio Tanimoto, Masahiro Fukuyama, Noriyasu Yasuda
  • Rubber composition
    Patent number: 5250627
    Abstract: The present invention provides a rubber composition which comprises the following components (A) and (B):(A) an ethylene copolymer rubber comprising ethylene and at least one compound selected from the group consisting of acrylic esters and methacrylic esters as constituting units, and(B) a hydrogenated unsaturated nitrile-conjugated diene copolymer rubber.This composition is well balanced in its properties such as strength characteristics, oil resistance, low-temperature resistance and ozone resistance.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: October 5, 1993
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Keisaku Yamamoto, Hideaki Yamada, Mashiro Fukuyama, Noriyasu Yasuda