Patents by Inventor Akito Suhara

Akito Suhara 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).

  • Polyamide composition
    Patent number: 4543378
    Abstract: A polyamide composition having an enhanced adhesion to coatings, which comprises a polyamide with a ratio of the terminal amino group concentration to the terminal carboxyl group concentration of at least 1.5, an inorganic filler, and a triazine, wherein the amount of the inorganic filler is from 1 to 150 weight parts per 100 weight parts of the polyamide and the amount of the triazine is more than 1 weight part per 100 weight parts of the sum of the polyamide and the inorganic filler.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: September 24, 1985
    Assignees: Ube Industries, Ltd., Nissan Motor Company, Ltd.
    Inventors: Akito Suhara, Kazuhiko Takasugi, Toshihide Sato, Masashi Ono, Kazuo Higuchi, Tatsuya Chiba
  • Method for etching polyamide shaped articles
    Patent number: 4298424
    Abstract: Disclosed is a method for etching a polyamide shaped article which comprises etching a polyamide shaped article formed from a composition comprising 100 parts by weight of a polyamide and 10 to 50 parts by weight of an inorganic filler with an aqueous solution of borofluoric acid.According to this treating method, a good surface capable of providing a plated article having a high adhesion and a reduced deviation of the adhesion can be formed on the polyamide shaped article.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: November 3, 1981
    Assignee: VBE Industries, Ltd.
    Inventors: Sachio Terada, Akito Suhara, Toshiro Shimada, Takashi Nakamura, Kunizo Hujii, Nobuichi Nakahira