Patents by Inventor Masatomo Shinohara

Masatomo Shinohara 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).

  • Aluminum alloy impeller and manufacturing method of the same
    Patent number: 5902546
    Abstract: There is disclosed a high heat resistant aluminum alloy impeller, which is suitably used as an impeller, especially for a centrifugal compressor, and for the rotor and the blade of a turbo molecular pump or the scroll of a scroll compressor. Also, a method for manufacturing this aluminum alloy impeller is disclosed. The impeller is composed of an Al--Fe rapid solidification aluminum alloy, which is produced by a spray forming process for spraying a molten metal with inert gas and rapidly solidifying the metal at a cooling speed of 10.sup.2 .degree. C./sec. or higher while simultaneously deposing the metal. The rapid solidification aluminum alloy is subjected to hot extrusion processing within a temperature range of 200.degree. C. to 600.degree. C. and further subjected to hot forging.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: May 11, 1999
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nozomu Kawasetsu, Masatomo Shinohara, Kouichiro Imakiire, Masanori Kimura, Keiichi Shiraishi, Masayuki Hayakawa, Kazuhisa Shibue, Yoshimasa Okubo, Naoki Tokizane