Patents by Inventor Ryosuke Matsuya

Ryosuke Matsuya 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).

  • Miniature electric light bulb sets for decorative illumination
    Patent number: 4228486
    Abstract: Miniature electric light bulb sets for decorative illumination are prepared by branching out two electric wires from one attachment plug and further branching out each of said two electric wires into two further electric wires at respective branch plates and providing a group of miniature electric light bulbs grouped at each terminal of the respective branched wires, the improved miniature electric light bulb sets for decorative illumination being prepared by simplifying each component, and reducing the production costs while maintaining safety.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: October 14, 1980
    Assignee: Towa Dengyo Co., Ltd.
    Inventor: Ryosuke Matsuya