Patents by Inventor Handa Haruhiko

Handa Haruhiko 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).

  • Pressure sensor having a resistor element on a glass dryer with electrodes connected thereto
    Patent number: 5406852
    Abstract: A pressure sensor including a plate-shaped metal substrate; a glass layer provided on a surface of the metal substrate and mainly containing a partially devitrified enamel composition; a resistor element which is provided on a surface of the glass layer and has an electric resistance changed in accordance with the degree of strain thereof; and a pair of electrodes connected to the resistor element. The resistor element is provided so as to receive a stress, a pressure, or a load applied perpendicularly to a surface thereof. Alternatively, both surfaces of the metal substrate are provided with glass layers, respectively, and the resistor element is provided on one of the glass layers.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: April 18, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Hiraka, Handa Haruhiko, Masaki Ikeda, Akihiko Yoshida