Patents by Inventor Makoto Uenishi

Makoto Uenishi 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).

  • Scroll type pump with wrap curve offset for thermal expansion
    Patent number: 4773835
    Abstract: A scroll type pump has a fixed scroll and an orbiting scroll engaging therewith, wherein a curve of a wrap of either of the scrolls is offset inwardly or outwardly relative to a set curve so as to prevent formation of a gap between the wraps due to thermal expansion of the scroll wraps.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: September 27, 1988
    Assignees: Hitachi, Ltd., Shin Meiwa Industry Co., Ltd.
    Inventors: Shigeru Machida, Katsumi Matsubara, Toshio Kushiro, Makoto Uenishi, Kazuaki Miyazaki