Patents by Inventor Kazuyoshi Tsuka

Kazuyoshi Tsuka 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: 6806801
    Abstract: A high frequency relay has a mounting surface to be mounted on an external element and includes an electromagnet having an iron core and a coil wound around the iron core, stationary terminals to be connected to the external element, contacts formed to be generally flat and having respective contact surfaces to be brought into contact with or separated from the stationary terminals, an armature attracted to or repelled from the iron core according to energization of the coil to obtain a driving force for driving the contacts, and a pair of shielding members made of a metallic material for supporting the contacts in an insulated state so that the contact surfaces extend generally parallel to the mounting surface. The pair of shielding members are provided to shield contact portions between the contacts and the stationary terminals and sandwich the contact in a direction perpendicular to the mounting surface.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: October 19, 2004
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kenji Kadoya, Kazuyoshi Tsuka
  • Publication number: 20020121950
    Abstract: A high frequency relay has a mounting surface to be mounted on an external element and includes an electromagnet having an iron core and a coil wound around the iron core, stationary terminals to be connected to the external element, contacts formed to be generally flat and having respective contact surfaces to be brought into contact with or separated from the stationary terminals, an armature attracted to or repelled from the iron core according to energization of the coil to obtain a driving force for driving the contacts, and a pair of shielding members made of a metallic material for supporting the contacts in an insulated state so that the contact surfaces extend generally parallel to the mounting surface. The pair of shielding members are provided to shield contact portions between the contacts and the stationary terminals and sandwich the contact in a direction perpendicular to the mounting surface.
    Type: Application
    Filed: April 3, 2002
    Publication date: September 5, 2002
    Inventors: Kenji Kadoya, Kazuyoshi Tsuka