Patents by Inventor Nobuo Yamada

Nobuo Yamada 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).

  • Cured or uncured rubber composition containing homopolymers or copolymers of epihalohydrins
    Patent number: 4032479
    Abstract: A cured or uncured rubber composition comprising1. a rubber component about 1 to 100% of which consists of a homopolymer or copolymer of an epihalohydrin,2. a curing amount of a curing agent therefor consisting of a salt of an ethylenically unsaturated monocarboxylic acid with 1,8-diazabicyclo(5,4,0) undecene-7 and an organic peroxide, and3. an acid acceptor.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: June 28, 1977
    Assignee: Osaka Soda Co., Ltd.
    Inventors: Yukinari Bunnomori, Nobuo Yamada, Tetsuya Nakata
  • Process for preparing cross-linked elastomer compositions and compositions curable with cross-linking agents used therefor
    Patent number: 3965050
    Abstract: Improved process for preparing a cross-linked epichlorohydrin elastomer composition by heating an epichlorohydrin elastomer in the presence of a compound selected from the group consisting of the quinones and derivatives thereof of the following formula ##SPC1##Wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, are each a member selected from the class consisting of hydrogen and the hydrocarbon groups, and R.sub.1 and R.sub.2 taken together, may form a benzene ring.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: June 22, 1976
    Assignee: Osaka Soda Co., Ltd.
    Inventors: Sachio Shimogawa, Takashi Fujio, Mikio Arika, Nobuo Yamada, Takashi Kodama, Tetsuya Nakata