Patents by Inventor Tetsuo Sugihara

Tetsuo Sugihara 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).

  • Pressure sensitive recording sheet
    Patent number: 4276334
    Abstract: A pressure sensitive member comprises a base sheet and an opaque pressure clarifiable layer overlying the substrate and the color of the substrate being different from that of the opaque clarifiable layer.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: June 30, 1981
    Assignee: General Company Limited
    Inventor: Tetsuo Sugihara