Patents by Inventor Tetsuo Kito

Tetsuo Kito 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).

  • Electromagnetic relay having precise positional relationship between elements
    Patent number: 4703295
    Abstract: An electromagnetic relay constructed by assembling an electromagnet portion including an armature of a straight bar shape arranged adjacent to a magnetic pole piece; a fixed contact spring; and a spring holding portion including a movable contact spring driven by a card driven by the armature, so that the precise portional relationship between elements of the electromagnetic relay is realized.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: October 27, 1987
    Assignee: Takamisawa Electric Co., Ltd.
    Inventors: Kunihisa Fujii, Noboru Tomono, Tetsuo Kito, Kosei Yoshino
  • Electromagnetic relay
    Patent number: 4472699
    Abstract: In an electromagnetic relay, an electromagnet is constructed from an approximately U-shaped magnetic pole piece, an approximately U-shaped magnetic yoke, and an armature. One side leg of the magnetic pole piece, one side leg of the magnetic yoke, and the armature are accomodated in the central hole of a bobbin so that the efficiency of the conversion of electrical power into a driving force is increased.
    Type: Grant
    Filed: July 8, 1982
    Date of Patent: September 18, 1984
    Assignee: Takamisawa Electric Co., Ltd.
    Inventors: Kunihisa Fujii, Noboru Tomono, Hajime Watanabe, Tetsuo Kito