Patents by Inventor Kazuaki Tsubota

Kazuaki Tsubota 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).

  • Patent number: 5586831
    Abstract: Two plate-like members are connected to each other by a connector for subsequent simultaneous feed thereof to, for example, a press. The connector includes a main body having two rectangular grooves, which have respective upper and lower walls and are open on opposite sides of the main body for receiving ends of the two respective plate-like members. A plurality of vertically movable pressure members and a plurality of locking screws are mounted on the main body to retain the ends of the two plate-like members within associated rectangular grooves.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: December 24, 1996
    Assignees: Delta Tooling Co., Ltd., Delta Kogyo Co., Ltd.
    Inventors: Kazuaki Tsubota, Takeshi Yamamoto
  • Patent number: 4960479
    Abstract: The present invention provides a method for manufacturing an automobile sunvisor, wherein a pair of overcoatings for the sunvisor, the rear surface of which is respectively covered with a layer of thermoplastic resin, is pressure-welded between an upper electrode member and a lower electrode member and cut at the same position without displacement, thus forming no protruding welded portion in the periphery of the sunvisor. Moreover, the pair of the overcoatings can be securely welded to each other without any particular portion for welding prepared in the overcoatings because the thermoplastic resin is melted inside the sealed portion of the pair of overcoatings during the pressure-welding.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: October 2, 1990
    Assignee: Delta Kogyo Co., Ltd.
    Inventors: Yoshikazu Yasuda, Kazuaki Tsubota, Shiro Tanimoto