Patents by Inventor Oie Naoyuki

Oie Naoyuki 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).

  • Control system for air cleaner
    Patent number: 4827154
    Abstract: A system for controlling an air cleaner having high ability to remove smoke but low ability to remove gas with use of a gas sensor having higher sensitivity to gas than to smoke. The air cleaner is brought into operation when the gas sensor detects the gas released with the occurrence of smoke. The progress of removal of smoke is detected from the saturation of the gas sensor output, whereupon the cleaner is brought out of operation. Preferably, the air cleaner is held in operation for a predetermined period of time after the detection of the saturation to fully remove the smoke.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: May 2, 1989
    Assignees: Sanyo Electric Co., Ltd., Figaro Engineering Inc.
    Inventors: Oie Naoyuki, Koyama Hiromichi, Tanaka Katsuyuki, Matsumoto Shinichi