Patents by Inventor Yohji Ono

Yohji Ono 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).

  • Conversion coating solution for treating metal surfaces
    Patent number: 4927472
    Abstract: A conversion coating, predominantly consisting of tin phosphate, can be deposited on steel or tin plated steel surfaces by contact with a solution containing phosphate ions, tin ions, an oxidizing agent such as chlorate, and a chelating agent for the tin ions, the latter to prevent the rapid loss of tin from the solution that otherwise would occur. A coating that confers excellent resistance to corrosion in hot water is formed on drawn and ironed thinly tin plated cans.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: May 22, 1990
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Yasunobu Matsushima, Shigeo Tanaka, Tomoyuki Aoki, Yohji Ono