Patents by Inventor Yokichi Satoh

Yokichi Satoh 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).

  • Cleaning chemical for aluminium surface
    Patent number: 4857225
    Abstract: The present invention offers a cleaning agent for aluminium surface which is an aqueous acidic liquid containing peroxo acid and/or peroxide in 0.05-10 g/l and further one or more kinds out of sulphuric acid, phosphoric acid and nitric acid.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: August 15, 1989
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Haruyoshi Terada, Youji Ono, Yokichi Satoh, Hideaki Kaneko