Patents by Inventor Tethuzi Aoki

Tethuzi Aoki 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).

  • Zinc electroplating
    Patent number: 3954575
    Abstract: A method for depositing bright zinc from zinc electrodeposition baths in which an aqueous solution of a low molecular weight polymer prepared by the reaction of at least one epihalohydrin with at least one nitrogen heterocyclic compound is added to the zinc electroplating bath.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: May 4, 1976
    Assignee: Dipsol Chemicals Co., Ltd.
    Inventors: Kazuo Yanagida, Tethuzi Aoki, Akio Takahashi, Toshio Igarashi