Patents by Inventor Noriyoshi Mitsui

Noriyoshi Mitsui 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).

  • Apparatus for hot gas welding of a pair of thermoplastic materials
    Patent number: 4094725
    Abstract: A process for welding a pair of thermoplastic workpieces by hot gas ejecting, which includes the steps of (a) positioning a pair of works to be welded in opposed relation with each other, (b) positioning heat blast nozzles between the works, (c) ejecting heat blast from the nozzles to the opposed surfaces of the works, (d) retracting the nozzles from the position between the works (e) advancing one of the works to be in pressure contact with the other, and (f) pressurizing the two works for firmly combining the two.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: June 13, 1978
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Shinji Takeda, Noriyoshi Mitsui, Nobuharu Kato