Patents by Inventor Katsuhisa Tatsukawa

Katsuhisa Tatsukawa 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).

  • Communication system, authentication method, information processing device, information processing method, and battery
    Patent number: 8387113
    Abstract: An authenticating system according to the present invention has a characteristic structure of which an authenticating section 32 of a note type PC 10 and an authenticating section 42 of a battery 20 are directly connected through I/O ports 51 and 61, respectively. Thus, the authenticating system according to the present invention can be relatively easily accomplished using a conventional system. The present invention can be applied to a system that is composed of a plurality of electronic devices that perform an authenticating process.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: February 26, 2013
    Assignees: Sony Corporation, Renesas Technology Corp.
    Inventors: Hidetoshi Shimada, Norio Fujimori, Keiichi Komaki, Keisuke Koide, Tsuyoshi Ookubo, Kenichiro Kamijo, Daiki Yokoyama, Kenichi Takahira, Katsuhisa Tatsukawa
  • COMMUNICATION SYSTEM, AUTHENTICATION METHOD, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND BATTERY
    Publication number: 20090125979
    Abstract: An authenticating system according to the present invention has a characteristic structure of which an authenticating section 32 of a note type PC 10 and an authenticating section 42 of a battery 20 are directly connected through I/O ports 51 and 61, respectively. Thus, the authenticating system according to the present invention can be relatively easily accomplished using a conventional system. The present invention can be applied to a system that is composed of a plurality of electronic devices that perform an authenticating process.
    Type: Application
    Filed: May 10, 2007
    Publication date: May 14, 2009
    Applicant: Sony Corporation
    Inventors: Hidetoshi Shimada, Norio Fujimori, Keiichi Komaki, Keisuke Koide, Tsuyoshi Ookubo, Kenichiro Kamijo, Daiki Yokoyama, Kenichi Takahira, Katsuhisa Tatsukawa