Patents by Inventor Hisae Sasaki

Hisae Sasaki 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).

  • Multilayer optical information medium
    Patent number: 5871881
    Abstract: A multilayer optical information medium provided with structure in which first and second substrates respectively provided with two to four layers of planar information areas are respectively arranged outside wherein the thickness of the above-described first and second substrates is set in the range of 0.52 to 0.65 mm. The above-described planar information area consists of embossed pits provided, for example on the surface of respective substrates or on the surface of a layer formed by transparent material and a semi-reflective layer provided on the embossed pits. A planar information area arranged in the farthest position from respective substrates is provided with a reflective layer in place of the above-described semi-reflective layer. The planar information area arranged in the farthest position from respective substrates may be constituted by a recording layer and a reflective layer provided on the recording layer.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: February 16, 1999
    Assignees: Hitachi, Ltd., Nippon Columbia Co., Ltd.
    Inventors: Tetsuya Nishida, Yumiko Anzai, Kenchi Ito, Yoshito Tsunoda, Masahiko Takahashi, Hisae Sasaki, Kazuhiko Nakano
  • Controller for power conditioner for solar energy generation system
    Patent number: D642992
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: August 9, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisae Sasaki, Takamitsu Morisaki