Patents by Inventor Michio Fukutome

Michio Fukutome 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 switch
    Patent number: 4524254
    Abstract: A pressure switch including a diaphragm displaceable under pressure and a switch chamber containing a switch element responsive to the displacement of the diaphragm, the switch chamber further including a vent hole formed therein for communicating said switch chamber with the surrounding atmosphere, the vent hole being closed at one end by a porous filter having air permeability and water repellency, the filter extending outwardly from the surrounding walls of a holder.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: June 18, 1985
    Assignees: Kabushiki Kaisha Tokai Rika Denki Seisakusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Hatsuyoshi Yoshida, Michio Fukutome, Makoto Ohuchi, Jyun Ohta