Patents by Inventor Masato Akama

Masato Akama 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).

  • Novel epoxy resin compositions
    Patent number: 4687832
    Abstract: An epoxy resin composition comprising an epoxy resin and a curing agent for said resin and optionally a curing accelerator, the improvement of which the epoxy resin is an epoxy resin obtained by reacting dihydroxynaphthalene of formula ##STR1## with epichlorohydrin.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: August 18, 1987
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Shunji Ehara, Shuji Nakamura, Masato Akama