Patents by Inventor Kazuko Hamaguchi

Kazuko Hamaguchi 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).

  • Patent number: 7328167
    Abstract: The degree of users' satisfaction concerning the utilization of services and the utilization efficiency of resources used for the services are optimized. The service reservation management computers deny based on the degree of importance as a standard, which increases in proportion to a level of a load of resources utilized for the service supplied by a high function network, a reservation booking request which has a degree of importance not higher than the standard, and which was received from an end user's computer via a service supply management computer, even when an amount of resources used for the service in a case where the reservation is accepted with the service then executed in accordance with the reservation booking request does not exceed an amount of resources utilizable for the service.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: February 5, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiro Kusama, Kazuko Hamaguchi, Kenichi Yoshida
  • Publication number: 20080016335
    Abstract: Upon issuance of an attribute certificate, an attribute authority apparatus makes a determination policy available. The determination policy includes information designating at least one item to be checked by a service provider apparatus for determination to be made to verify the attribute certificate, and a criterion for the determination. The determination policy may be recorded in the attribute certificate, or released to public, or made available by issuing a determination policy certificate released to public. Information for obtaining the determination policy certificate may be recorded in or outside the attribute certificate and furnished to the service provider apparatus. In order to verify an attribute certificate transmitted from a user terminal, a service provider apparatus obtains the determination policy, and determines whether data in the at least one item designated in the determination policy fulfill the criterion recorded in the determination policy.
    Type: Application
    Filed: June 13, 2007
    Publication date: January 17, 2008
    Inventors: Aya Takahashi, Hisao Sakazaki, Seiichi Susaki, Kazuko Hamaguchi, Katsuyuki Umezawa, Ken Kobayashi, Kazuyoshi Hoshino
  • Patent number: 7016665
    Abstract: A charging system for use in a network composed of wireless terminals with a repeater function. As each terminal with a repeater function receives a communication session start request from a user terminal, it searches for a destination user terminal; when it finds the destination user terminal, it transfers the signal sent from the requesting user terminal to the destination user terminal without the mediation of base stations. The information about the amount of data thus transferred or communication time for transferring data is sent to the charging system which is under the control of the communications service provider concerned.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: March 21, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Tamaki, Masaaki Shida, Tomoaki Ishifuji, Nobukazu Doi, Kazuko Hamaguchi
  • Patent number: 6675007
    Abstract: A charging system for use in a network composed of wireless terminals with a repeater function. As each terminal with a repeater function receives a communication session start request from a user terminal, it searches for a destination user terminal; when it finds the destination user terminal, it transfers the signal sent from the requesting user terminal to the destination user terminal without the mediation of base stations. The information about the amount of data thus transferred or communication time for transferring data is sent to the charging system which is under the control of the communications service provider concerned.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: January 6, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Tamaki, Masaaki Shida, Tomoaki Ishifuji, Nobukazu Doi, Kazuko Hamaguchi
  • Publication number: 20030054795
    Abstract: A charging system for use in a network composed of wireless terminals with a repeater function. As each terminal with a repeater function receives a communication session start request from a user terminal, it searches for a destination user terminal; when it finds the destination user terminal, it transfers the signal sent from the requesting user terminal to the destination user terminal without the mediation of base stations. The information about the amount of data thus transferred or communication time for transferring data is sent to the charging system which is under the control of the communications service provider concerned.
    Type: Application
    Filed: February 4, 2002
    Publication date: March 20, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Tsuyoshi Tamaki, Masaaki Shida, Tomoaki Ishifuji, Nobukazu Doi, Kazuko Hamaguchi
  • Publication number: 20030054796
    Abstract: A charging system for use in a network composed of wireless terminals with a repeater function. As each terminal with a repeater function receives a communication session start request from a user terminal, it searches for a destination user terminal; when it finds the destination user terminal, it transfers the signal sent from the requesting user terminal to the destination user terminal without the mediation of base stations. The information about the amount of data thus transferred or communication time for transferring data is sent to the charging system which is under the control of the communications service provider concerned.
    Type: Application
    Filed: May 30, 2002
    Publication date: March 20, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Tsuyoshi Tamaki, Masaaki Shida, Tomoaki Ishifuji, Nobukazu Doi, Kazuko Hamaguchi
  • Publication number: 20020090953
    Abstract: Position information on a mobile communication device is acquired in the form of latitude and longitude or of latitude, longitude and altitude. Usage information is held in a communication control device in the form of limits of latitude and longitude or of latitude, longitude and altitude. The communication control device control the mobile communication device to put in a prohibited mode corresponding to the usage information. When the mobile communication device corresponds to the usage limit, the communication control device prompts a bearer of the mobile communication device to put its prohibited mode, and then transmits a prohibited mode control signal to the mobile communication device.
    Type: Application
    Filed: March 2, 2001
    Publication date: July 11, 2002
    Inventors: Maki Aburai, Mitsuru Hirasawa, Kazuko Hamaguchi, Toshiichirou Sasaki