Patents by Inventor Kazunori Kumakura

Kazunori Kumakura 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).

  • Method for ensuring security, data storage apparatus, security ensuring server, and storage medium storing program for the same
    Patent number: 7574743
    Abstract: A method for ensuring security and a data storage apparatus that enable an efficient security check on a notebook PC or like that are taken outside are provided. By executing a program that is read from the data storage apparatus, the processing for determining whether or not a piece of security ensuring data is applied; reading the piece of security ensuring data that is determined to be applied; and applying the same to a predetermined program in a terminal is executed.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: August 11, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Yoshio Masuzawa, Takashi Hayakawa, Kazunori Kumakura, Toshio Morikawa
  • Analog/digital converter for detecting coincidence or non-coincidence between data and a micro-computer including the analog/digital converter
    Patent number: 7046184
    Abstract: An analog/digital converter and a micro-computer including the analog/digital converter that may accurately perform “coincidence detection” operation between A/D converted digital data and a reference digital value. The analog/digital converter includes a converted data storing unit configured to store the A/D converted digital data, a reference value storing unit configured to store the reference digital value for executing a predetermined process in a CPU, and a comparing data storing unit configured to store comparing data that indicates which bit of the converted digital data is to be compared with which bit of the reference digital value. The analog/digital converter selects comparing bits from the converted digital data and the reference digital value, based on the comparing data.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: May 16, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kazunori Kumakura
  • Method for ensuring security, data storage apparatus, security ensuring server, and storage medium storing program for the same
    Publication number: 20060015744
    Abstract: A method for ensuring security and a data storage apparatus that enable an efficient security check on a notebook PC or like that are taken outside are provided. By executing a program that is read from the data storage apparatus, the processing for determining whether or not a piece of security ensuring data is applied; reading the piece of security ensuring data that is determined to be applied; and applying the same to a predetermined program in a terminal is executed.
    Type: Application
    Filed: April 20, 2005
    Publication date: January 19, 2006
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio Masuzawa, Takashi Hayakawa, Kazunori Kumakura, Toshio Morikawa
  • Analog/digital converter for detecting coincidence or non-coincidence between data and a micro-computer including the analog/digital converter
    Publication number: 20050104761
    Abstract: An analog/digital converter and a micro-computer including the analog/digital converter that may accurately perform “coincidence detection” operation between A/D converted digital data and a reference digital value. The analog/digital converter includes a converted data storing unit configured to store the A/D converted digital data, a reference value storing unit configured to store the reference digital value for executing a predetermined process in a CPU, and a comparing data storing unit configured to store comparing data that indicates which bit of the converted digital data is to be compared with which bit of the reference digital value. The analog/digital converter selects comparing bits from the converted digital data and the reference digital value, based on the comparing data.
    Type: Application
    Filed: November 18, 2004
    Publication date: May 19, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Kazunori Kumakura