Patents by Inventor Ryuichi Uematsu

Ryuichi Uematsu 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).

  • Antistatic footwear
    Patent number: 4532724
    Abstract: Conductive leg covers for covering the legs of a wearer of antistatic or conductive shoes are connected to the shoes. Thereby footwear is obtained which leaks static electricity safely from a wearer charged therewith, prevents the falling of dust from the cuffs of the trousers worn by the wearer, reduces wearing problems, and is easy to wear.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: August 6, 1985
    Assignee: Midori Anzen Industry Co., Ltd.
    Inventors: Koichi Okoshi, Ryuichi Uematsu