Patents by Inventor Kenichi Kidokoro

Kenichi Kidokoro 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: 6804363
    Abstract: An electroacoustic transducer comprises a carrier portion, a diaphragm supported by the carrier portion, an electrode portion opposed to the diaphragm at a predetermined interval, and a housing accommodating the diaphragm and the electrode portion, wherein the carrier portion has a saucer-like shape, at the bottom surface of which a plurality of upstanding posts are provided, and wherein the upper surface of the periphery of the carrier portion and the upper end surfaces of the posts are in the same plane, the diaphragm is bonded to the surface of the periphery of the carrier portion and the end surfaces of the posts, and the electrode portion is fixed to the end surfaces of the posts which are covered by the diaphragm with spacers interposed therebetween.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: October 12, 2004
    Assignee: Rion Co., Ltd.
    Inventors: Takashi Yamasaki, Kenichi Kidokoro
  • Publication number: 20030194102
    Abstract: The object of the present invention is to provide an electroacoustic transducer characterized in that the desirable tension of a diaphragm is not changed, the interval between the diaphragm and the electrode portion can accurately be kept, the amplitude of the diaphragm in response to sound waves can be increased, and the influence of an external force can be reduced.
    Type: Application
    Filed: December 3, 2002
    Publication date: October 16, 2003
    Inventors: Takashi Yamasaki, Kenichi Kidokoro