Patents by Inventor Osamu Yabuta

Osamu Yabuta 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).

  • Piezoelectric on-off valve for air conditioning
    Patent number: 5103869
    Abstract: A piezoelectric on-off value for air conditioning comprises a bendable metal plate fixed at one end thereof; a valve member mounted on the other end of the metal plate along a ceiling plate, the value member having vent holes corresponding to vent holes in the ceiling plate, and the valve member changing the relative closure of the vent holes when the metal plate is deformed by application of voltage to the piezoelectric ceramic.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: April 14, 1992
    Assignees: Toshiba Ceramics Co., Ltd., Shin Nippon Air Conditioning Engineering Co., Ltd.
    Inventors: Yoshimichi Kimura, Yuzo Kimoto, Yukio Sato, Yukio Anekoji, Osamu Yabuta, Mitsuhisa Fukuda, Shoji Hirose, Takao Chiba