Patents by Inventor Takemitsu Sakai

Takemitsu Sakai 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 recording medium and method for manufacturing the same
    Patent number: 8119215
    Abstract: A write-once type optical recording medium 10 has an inorganic recording film 2. The inorganic recording film 2 has an oxide film 2a containing an oxide of germanium (Ge) and an adjacent film 2b which contains titanium (Ti) and manganese (Mn) and is adjacent to the oxide film 2a.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: February 21, 2012
    Assignee: Sony Corporation
    Inventors: Takemitsu Sakai, Yuichi Sabi, Etsuro Ikeda
  • Optical recording medium and method for manufacturing the same
    Patent number: 8075975
    Abstract: An optical recording medium is an optical recording medium having an inorganic recording film and has a transparent conductive film on the inorganic recording film. The inorganic recording film has a first recording film containing titanium (Ti) and a second recording film containing an oxide of germanium (Ge). The transparent conductive film is provided on the side of the second recording film. The transparent conductive film contains an oxide of tin (Sn).
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: December 13, 2011
    Assignee: Sony Corporation
    Inventors: Takemitsu Sakai, Etsuro Ikeda, Yuichi Sabi
  • OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20100233413
    Abstract: A write-once type optical recording medium 10 has an inorganic recording film 2. The inorganic recording film 2 has an oxide film 2a containing an oxide of germanium (Ge) and an adjacent film 2b which contains titanium (Ti) and manganese (Mn) and is adjacent to the oxide film 2a.
    Type: Application
    Filed: January 24, 2008
    Publication date: September 16, 2010
    Applicant: Sony Corporation
    Inventors: Takemitsu Sakai, Yuichi Sabi, Etsuro Ikeda
  • OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20100047503
    Abstract: An optical recording medium is an optical recording medium having an inorganic recording film and has a transparent conductive film on the inorganic recording film. The inorganic recording film has a first recording film containing titanium (Ti) and a second recording film containing an oxide of germanium (Ge). The transparent conductive film is provided on the side of the second recording film. The transparent conductive film contains an oxide of tin (Sn).
    Type: Application
    Filed: March 21, 2008
    Publication date: February 25, 2010
    Applicant: SONY CORPORATION
    Inventors: Takemitsu Sakai, Etsuro Ikeda, Yuichi Sabi
  • OPTICAL RECORDING MEDIUM AND ITS MANUFACTURING METHOD
    Publication number: 20080233389
    Abstract: An optical recording medium having an inorganic recording film, wherein the inorganic recording film has: a first recording film containing titanium Ti; and a second recording film containing oxides of germanium Ge and tin Sn.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 25, 2008
    Applicant: SONY CORPORATION
    Inventors: Takemitsu Sakai, Yuichi Sabi, Etsuro Ikeda