Patents by Inventor Zenichi Kitao

Zenichi Kitao 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: 4647742
    Abstract: An alternate mechanism comprising a plunger (4) supported for a linear movement, a rotary cam (71) rotatably supported by the plunger, a spring (43) for biasing the plunger toward an original position (P.sub.1) of the plunger, a first stationary cam (76) which as the plunger is pushed to a first position (P.sub.2, P.sub.3) against the spring, is adapted to be engaged with the rotary cam so as to rotate the rotary cam by a predetermined angle, and a second stationary cam (32) which as the plunger supporting the rotary cam at the predetermined angle returns from the first position, is engaged with the rotary cam so as to lock the plunger in a second position (P.sub.4), and as the plunger locked in the second position is pushed again, the rotary cam is further rotated by the first stationary cam so as to be disengaged from the second stationary cam when the plunger returns to the second position.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: March 3, 1987
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Zenichi Kitao, Haruyuki Koizumi
  • Patent number: 4532393
    Abstract: A push button switch is disclosed which includes a switching body which works as it is, a holder supporting the switching body on one end wall thereof, and a key top swingably mounted on the holder, in which the switching body, the holder and the key top are assembled as a single unit and can be manually disassembled.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: July 30, 1985
    Assignee: Omron Tateisi Electronics, Co.
    Inventors: Haruyuki Koizumi, Zenichi Kitao, Hideki Sato
  • Patent number: 4495391
    Abstract: An alternate mechanism comprising a plunger (4) supported for a linear movement, a rotary cam (71) rotatably supported by the plunger, a spring (43) for biasing the plunger toward an original position (P.sub.1) of the plunger, a first stationary cam (76) which as the plunger is pushed to a first position (P.sub.2, P.sub.3) against the spring, is adapted to be engaged with the rotary cam so as to rotate the rotary cam by a predetermined angle, and a second stationary cam (32) which as the plunger supporting the rotary cam at the predetermined angle returns from the first position, is engaged with the rotary cam so as to lock the plunger in a second position (P.sub.4), and as the plunger locked in the second position is pushed again, the rotary cam is further rotated by the first stationary cam so as to be disengaged from the second stationary cam when the plunger returns to the second position.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: January 22, 1985
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Zenichi Kitao, Haruyuki Koizumi