Patents by Inventor Kazuo Tsukiyama

Kazuo Tsukiyama 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).

  • Optical disc apparatus having dynamic damper mechanism
    Patent number: 7472407
    Abstract: The invention provides an optical disc apparatus having a dynamic damper mechanism which does not use any part for exclusive use for absorbing a shock of an optical pickup. The optical disc apparatus is provided with a chassis attached to a base chassis via a first elastic body, shafts provided on the chassis, an optical pickup moving on the shaft, and a weight attached to the chassis via a second elastic body, the weight is provided with stoppers on a moving path of the optical pickup.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: December 30, 2008
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Kohei Takita, Hisahiro Miki, Kazuo Tsukiyama, Ikuo Nishida
  • Optical disc apparatus
    Publication number: 20050141357
    Abstract: The invention provides an optical disc apparatus having a dynamic damper mechanism which does not use any part for exclusive use for absorbing a shock of an optical pickup. The optical disc apparatus is provided with a chassis attached to a base chassis via a first elastic body, shafts provided on the chassis, an optical pickup moving on the shaft, and a weight attached to the chassis via a second elastic body, the weight is provided with stoppers on a moving path of the optical pickup.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 30, 2005
    Inventors: Kohei Takita, Hisahiro Miki, Kazuo Tsukiyama, Ikuo Nishida
  • Camcorder incorporating a cavity for storing a remote controller therein
    Patent number: 5355228
    Abstract: An imaging device comprises a camera, a video cassette recorder, a cassette compartment outer wall which is provided on the video cassette recorder and which is opened and closed when a cassette is inserted or removed, and a remote controller. A cavity, accessible when the cassette compartment is open, is provided for storing the remote controller in the cassette compartment outer wall.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: October 11, 1994
    Assignees: Hitachi, Ltd., Hitachi Tokai Engineering Co., Ltd., Hitachi Video & Information System, Inc.
    Inventors: Masami Mizuno, Masayuki Kimura, Takayuki Nakajima, Takeshi Kawarai, Masanori Numa, Takahiro Nakata, Kazuo Tsukiyama