Patents by Inventor Takashi Kodama

Takashi Kodama 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: 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
  • Patent number: 3963661
    Abstract: A diallyl phthalate resin-containing aqueous emulsion containing an aqueous emulsion of a diallyl phthalate resin of a rate of polymerization of 30 - 75 weight % consisting of 50 - 100 weight % of diallyl phthalate and 50 - 0 weight % of an alkyl acrylate, and an aqueous emulsion of a thermosetting vinyl resin consisting of 10 - 1 weight % of a vinyl compound containing a thermosetting functional group and 90 - 99 weight % of a vinyl compound not containing a thermosetting functional group, the content of said diallyl phthalate resin component to said thermosetting vinyl resin component being in a proportion of 10 - 70 weight % of the former to 90 - 30 weight % of the latter.
    Type: Grant
    Filed: July 16, 1974
    Date of Patent: June 15, 1976
    Assignee: Osaka Soda Co., Ltd.
    Inventors: Akio Suzui, Shinji Nose, Takashi Kodama, Kenji Yokoyama, Kazuya Matsumoto, Yoshiharu Fujio