Patents by Inventor Tokunori Tanaka

Tokunori Tanaka 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).

  • Safety switch actuator
    Patent number: 6660949
    Abstract: An actuator of the present invention comprises an operation key 2 to be inserted into a key insertion hole formed in the safety switch, and a base 3. The operation key 2 is held on the base 3 and capable of freely swinging in two orthogonal directions. The actuator also comprises means (e.g. a guide stopper 4 and engagement spaces 34) for selectively restricting the swinging movement of the operation key 2 to either of the two directions.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: December 9, 2003
    Assignee: Idec Izumi Corporation
    Inventors: Yasushi Kamino, Takao Fukui, Yoshio Sekino, Kenji Miyauchi, Hideo Niinai, Tokunori Tanaka, Kazuya Okada, Ken Maeda, Yoshihiro Shima
  • Safety switch actuator
    Publication number: 20020157930
    Abstract: An actuator of the present invention comprises an operation key 2 to be inserted into a key insertion hole formed in the safety switch, and a base 3. The operation key 2 is held on the base 3 and capable of freely swinging in two orthogonal directions. The actuator also comprises means (e.g. a guide stopper 4 and engagement spaces 34) for selectively restricting the swinging movement of the operation key 2 to either of the two directions.
    Type: Application
    Filed: August 24, 2001
    Publication date: October 31, 2002
    Inventors: Yasushi Kamino, Takao Fukui, Yoshio Sekino, Kenji Miyauchi, Hideo Niinai, Tokunori Tanaka, Kazuya Okada, Ken Maeda