Patents by Inventor Shichiro Furukawa

Shichiro Furukawa 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).

  • Process for treating Al alloy casting and die casting
    Patent number: 4444628
    Abstract: Aluminum alloy castings and aluminum alloy die castings are treated in the process comprising the steps of chemically polishing the castings, processing the chemically polished castings by barreling and/or by blasting and subjecting successively the castings to degreasing, anodic oxidation, dyeing and sealing.
    Type: Grant
    Filed: August 24, 1983
    Date of Patent: April 24, 1984
    Assignee: Okuno Chemical Industry Co., Ltd.
    Inventors: Shichiro Furukawa, Yutaka Nakagishi, Shigeru Yamato