Patents by Inventor Toyokazu Inaba

Toyokazu Inaba 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).

  • Key switch structure for a thin-gage electronic device
    Patent number: 4847452
    Abstract: A key switch structure is provided which improves the reliability of the elasticity of the switch. A front film has a metal front panel adhered to its underside. A switch panel pattern is formed in the front panel and includes an operational member or contact unitary with the front panel, connected thereto by spring portions formed of connection members and leg members, connected to supports of the metal front panel. The contact has a carbon film on its underside, and is separated from a fixed contact by a spacer film. The spring portions eliminate the problem of deformation by creep of the front film and thus improve the reliability of the key switch.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: July 11, 1989
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Toyokazu Inaba