Patents by Inventor Kazutaka Hasegawa

Kazutaka Hasegawa 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).

  • Thermal flowmeter with temperature compensation
    Patent number: 4475388
    Abstract: A method for measuring the flow rate of fluid such as liquified petroleum gas fuel for an automobile fuel. A signal of the fluid flow rate and a signal of the fluid temperature are produced by using the signals from an electric heater and a first, second, and third temperature-dependent resistors in a signal processing circuit. The produced signals are supplied to a computer circuit to carry out modification, linearization, and multiplication by a conversion constant for linearization which is corrected regarding temperature characteristic. The result of calculation in the computer circuit is displayed on a display device.
    Type: Grant
    Filed: October 7, 1982
    Date of Patent: October 9, 1984
    Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Hisasi Kawai, Norihito Tokura, Tokio Kohama, Kenji Kanehara, Takayoshi Ito, Kazutaka Hasegawa