Patents by Inventor Shuichi Koizumi

Shuichi Koizumi 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).

  • Switch and remote controller using the same
    Patent number: 7564001
    Abstract: A switch includes a case having an upper surface with a hole provided therein, an operating unit inserted in the hole so as to be movable up and down, plural switch contacts arranged to be activated upon the operating unit moving up and down, and a guide wall protruding downward from an inner edge of the hole. The operating unit has a side surface facing the guide wall. The guide wall has a cutout provided therein. This switch operates reliably with a good operational feel.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: July 21, 2009
    Assignee: Panasonic Corporation
    Inventor: Shuichi Koizumi
  • SWITCH AND REMOTE CONTROLLER USING THE SAME
    Publication number: 20080128256
    Abstract: A switch includes a case having an upper surface having a hole provided therein, an operating unit inserted into the hole movably up and down, plural switch contacts activated upon the operating unit moving up and down, and a guide wall protruding downward from an inner edge of the hole. The operating unit has a side surface facing the guide wall. The guide wall has a cutout provided therein. This switch operates reliably with a good feeling.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 5, 2008
    Inventor: Shuichi KOIZUMI