Patents by Inventor Masaharu Sakanaka

Masaharu Sakanaka 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).

  • Liquid meter comprising a circuit for reducing a detection error resulting from a variable flow rate
    Patent number: 4306457
    Abstract: A meter for a liquid, such as water, comprises a measuring circuit (55) for measuring those measuring periods in response to a detection pulse sequence resulting from rotation of a body (30) rotated by the liquid, each of which may be defined either by a period of one complete rotation of the body or a predetermined interval, such as six seconds. The circuit produces measurement signals representative of individual amounts of the liquid used with the individual amounts accompanied by detection errors resulting from a variable flow rate of the liquid. A totalizing circuit (61), which may comprise an ROM or consist of a microcomputer, totalizes the individual amounts with the detection errors reduced.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: December 22, 1981
    Assignees: Nippon Electric Co., Ltd., Aichi Tokei Denki Co., Ltd., Kimmon Manufacturing Co., Ltd.
    Inventors: Jun Fukui, Takeshi Yano, Yutaka Hasegawa, Masaharu Sakanaka