Patents by Inventor Toyohiro Nagahara

Toyohiro Nagahara 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).

  • Patent number: 5017747
    Abstract: A microswitch in which a good snap action feeling is obtained and an operating stroke is large is provided. Included in the microswitch is a swingable lever which is pushed by a pressing projection of a push button swingably pivotally supported. One end of the lever is pivotally supported and the other end is coupled with one end of a movable member having a movable contact. The movable member is biased by a spring in one direction.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: May 21, 1991
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Toyohiro Nagahara, Takashi Niwa, Takezo Sano, Isao Kato
  • Patent number: 4904832
    Abstract: A microswitch in which a good snap action feeling is obtained and an operating stroke is enhanced is provided. A compession spring is interposed between a movable member and a swingable lever which are respectively pivotaly supported at close positions. The swingable lever is operated by a push button which is vertically slidable. Further, restricting plates to restrict the motion in the width direction of the movable member are attached to the push button. A positioning member to hold the swingably lever to the position which faces the push button when the microswitch is assembled is also provided.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: February 27, 1990
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Toyohiro Nagahara, Takashi Niwa, Takezo Sano, Isao Kato