Patents by Inventor Mamoru Egawa

Mamoru Egawa 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).

  • Blade for a rotary compressor
    Patent number: 5556270
    Abstract: A blade for the use of a rotary compressor includes a sintered body composed of 50 to 98.5 wt. % of zirconia, 1 to 49.5 wt. % of alumina and the reminder including 0.5 to 10 wt. % of a stabilizing material. The stabilizing material is comprised of at least one selected from magnesia, calcia, ceria and an oxide of an rare-earth metal and the grain size of the sintered body is less than 3 .mu.m. The zirconia in the sintered body is substantially formed with a tetragonal structure or a mixture of tetragonal and cubic structures.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: September 17, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Komine, Wataru Ikeda, Mamoru Egawa, Kastuhiro Shinosawa, Hiroyuki Isegawa, Kazuo Honaga, Yutaka Abe, Tsuneji Kameda, Shinobu Sato
  • Rotary compressor
    Patent number: D317313
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: June 4, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Yoshida, Mamoru Egawa, Makoto Sugiyama