Patents by Inventor Kenji Kawawada

Kenji Kawawada 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: 5499924
    Abstract: Connector members have respective film circuits with contact bumps of male and female sets or other complementary configurations and are brought into electrical connection by butting engagement. An elastomer underlies the bumps and is compressed by the engagement to provide contact pressure. The contact bumps of each female set are three or four in number arranged to form a triangular or square ring for engagement with a single male bump to provide a self-centering action. The male contact bump can be elongate so as to bridge completely across the ring. In other examples, both complementary contact bumps are elongate and extend in transverse directions on respective film circuits so that they are brought into transverse engagement, accommodating slight misalignment. Alternatively, instead of a bump configuration, a female member is formed by an aperture in a insulating layer of one film circuit overlying a conductive path and receiving a contact bump of the other film circuit.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: March 19, 1996
    Assignee: Kel Comporation
    Inventors: Hiroshi Arisaka, Kenji Kawawada, Kiyoshi Omata
  • Patent number: 4734060
    Abstract: Connector device having rod-like male and female contact sections of the same shapes to contact each other while they are arranged substantially parallel to each other. Contact section guide walls opposing each other are formed in the connector body. Rod-like contact sections are provided between the opposing guide walls. The proximal end of each contact section is fixed to the connector body and the distal end thereof is free to be elastically deformed. A contact projection is formed on the distal end of the rod-like contact section. An inclined portion is formed between the contact projection and a fixing section at the proximal end of the contact section.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: March 29, 1988
    Assignee: Kel Corporation
    Inventors: Kenji Kawawada, Akira Shimada