Patents by Inventor Keiji Mizuma

Keiji Mizuma 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: 8428587
    Abstract: A mobile communication system provided with a home address holding function unit storing one home address, as a representative home address, from among a plurality of home addresses and the rest as subordinate home addresses, a position registration request function unit creating a representative address set and subordinate address sets with the representative home address and subordinate home addresses, acquired from the holding function unit, and a corresponding representative care-of address and subordinate care-of addresses and further sending a position registration request by only the representative address set, and a position registration function unit receiving the representative home address and subordinate home addresses acquired from the holding function unit, creating subordinate address sets from the representative address set relating to the position registration request, and registering the position of the representative address set simultaneously with the registration of the positions of the s
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: April 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Keiji Mizuma, Tatsuhiro Ando
  • Publication number: 20110117937
    Abstract: The present invention relates to a technique of providing a push delivery service. A data center transmits attribute information on positions and radii of areas A through J to a user station. The user station compares the attribute information with a self-predicted position to predict that the user station itself lies in the area A through J. When the user station confirms that the user station lies in the area A through J, and requests the data center for delivery information attached to the area A through J on the basis of a result of confirmation. The data center transmits delivery information to the user station in response to the request. The user station knows itself in one of plural push delivery areas A through J, and decreases the frequency of positioning and pinpoints delivery of information such as shop advertisements is possible.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 19, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Yoshinobu MEIFU, Shinichiro Mori, Keiji Mizuma, Hiroshi Ishigami
  • Publication number: 20100069042
    Abstract: A mobile communication system provided with a home address holding function unit storing one home address, as a representative home address, from among a plurality of home addresses and the rest as subordinate home addresses, a position registration request function unit creating a representative address set and subordinate address sets with the representative home address and subordinate home addresses, acquired from the holding function unit, and a corresponding representative care-of address and subordinate care-of addresses and further sending a position registration request by only the representative address set, and a position registration function unit receiving the representative home address and subordinate home addresses acquired from the holding function unit, creating subordinate address sets from the representative address set relating to the position registration request, and registering the position of the representative address set simultaneously with the registration of the positions of the s
    Type: Application
    Filed: November 24, 2009
    Publication date: March 18, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Keiji MIZUMA, Tatsuhiro ANDO
  • Publication number: 20080160961
    Abstract: In an authentication server, when a mobile terminal is connected with a mobile network constructed by an IP network, a network-connection authentication of the mobile terminal is performed. A setup of a path from the mobile terminal to a home agent according to a mobile IP is performed after the network-connection authentication is performed. A mobile-management-service authentication of the mobile terminal with the home agent is performed after the setup of the path is performed. The authentication server includes a registration part which is configured to register an IP address of the mobile terminal and a domain name of the mobile terminal to a domain managing server which manages IP addresses and domain names.
    Type: Application
    Filed: November 13, 2007
    Publication date: July 3, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Keiji Mizuma, Tatsuhiro Ando, Hidehiko Suzuki
  • Publication number: 20080159125
    Abstract: A network connection restoration method of an IP communications system having a radio access network and using Mobile IP for managing the movement of a mobile terminal is disclosed. The network connection restoration method includes the steps of (a) an AAA server selecting a first one of multiple home agents to which one the mobile terminal is to be connected at the time of authenticating the mobile terminal, (b) the AAA server detecting a failure of the selected first one of the home agents by communicating with the selected first one of the home agents, and (c) the AAA server selecting a second one of the home agents in response to step (b) detecting the failure of the selected first one of the home agents.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 3, 2008
    Inventors: Tatsuhiro Ando, Keiji Mizuma, Hidehiko Suzuki
  • Publication number: 20080046593
    Abstract: In order to deliver information from an information transmission terminal to multiple user terminals in a specific area regardless of a type of an access network, a system includes managing location information of areas that the plurality of user terminals are located in association with multiple URIs; sending, in response to a first inquiry, the plurality of URIs associated with the plurality of user terminals in the specific area, the first inquiry being created based on the location information of the specific area entered from the information transmission terminal; managing the plurality of URIs of the user terminals in association with multiple IP addresses; and sending, in response to a second inquiry from the information transmission terminal, the plurality of IP addresses associated with the plurality of user terminals in the specific area, the second inquiry being created based on the URIs sent in response.
    Type: Application
    Filed: January 24, 2007
    Publication date: February 21, 2008
    Inventors: Tatsuhiro Ando, Keiji Mizuma
  • Patent number: 7290000
    Abstract: The present invention relates to a positional information service. A service center comprises a database for retaining bubble data in which spatial range information in a three-dimensional space is associated with retrieval information for obtaining service information to be provided, an extracting section for extracting, on the basis of positional information transmitted from the user terminal, specified retrieval information corresponding to specified spatial range information including the positional information, of the spatial range related in the database, and a providing section for providing, to the terminal, specified service information corresponding to the specified retrieval information extracted in the extracting section. This enables acquisition of information on a building in a predetermined range from the user terminal position or service information on a store existing in a specified building in a visual range, and further allows precise seizing of the user's moving direction.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: October 30, 2007
    Assignee: Fujitsu Limited
    Inventors: Yoshinobu Meifu, Shinichiro Mori, Keiji Mizuma
  • Patent number: 7175177
    Abstract: The present invention relates to a golf data management system that stores and manages golf score data, and to a data center and a golf data management method. This golf data management system includes a portable communication terminal that is carried by a player and a data center connected to the portable communication terminal via a communication network. The data center includes: an individual data storage unit that stores and manages play data supplied from the portable communication unit and practice data supplied from a practice data processing unit; a group data storage unit that manages performances of a group of accompanying players; and a common data storage unit that stores course map data of a plurality of golf courses. In response to an advice request containing measurement data obtained by a measuring unit in the portable communication terminal, the data center provides advice for each individual player based on the data stored in the individual data storage unit.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: February 13, 2007
    Assignee: Fujitsu Limited
    Inventors: Yoshinobu Meifu, Keiji Mizuma, Hiroshi Saito
  • Patent number: 7003557
    Abstract: A system for fine racing control in system management between CMIP operations and operations under other protocols, including a system (HOST), a work station (OSIP), remote operating system (OS), a maintenance and management terminal (OAM), racing control units, a common racing control table, an operation registration table, a racing control table, and an operation registration table. The racing control units determine, regrading a newly requested operation, whether or not managed object instances or resources to be controlled corresponding thereto are the same, allow execution of the newly requested operation when they are different, and determine a possibility of execution of the newly requested operation by referring to the racing control table or the common racing control table when they are the same.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: February 21, 2006
    Assignee: Fujitsu Limited
    Inventors: Masayuki Sato, Akinori Kamijo, Keiji Mizuma
  • Patent number: 6978295
    Abstract: A server apparatus comprises an information bubble managing unit for managing bubble data (information bubble) in which space range information including position information in a real physical space is correlated with desired supply information, an extracting unit for extracting supply information of bubble data including retrieval object space range information based on position information on a user terminal, a providing unit for providing the extracted supply information to the user terminal, and an information bubble movement control unit for updating at least position information of the bubble data to virtually move the information bubble in the real physical space. In providing an information service, it is possible to retrieve and refer information in an analog-like operation closer to human sensation in the user terminal by using an information bubble virtually registered in the real physical space, and provide information to many and unspecified users with a less number of information bubbles.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: December 20, 2005
    Assignee: Fujitsu Limited
    Inventors: Yoshinobu Meifu, Keiji Mizuma, Hideyuki Aoki
  • Publication number: 20030198346
    Abstract: The present invention relates to a technique of providing a push delivery service. A data center transmits attribute information on positions and radii of areas A through J to a user station. The user station compares the attribute information with a self-predicted position to predict that the user station itself lies in the area A through J. When the user station confirms that the user station lies in the area A through J, and requests the data center for delivery information attached to the area A through J on the basis of a result of confirmation. The data center transmits delivery information to the user station in response to the request. The user station knows itself in one of plural push delivery areas A through J, and decreases the frequency of positioning and pinpoints delivery of information such as shop advertisements is possible.
    Type: Application
    Filed: October 24, 2002
    Publication date: October 23, 2003
    Inventors: Yoshinobu Meifu, Shinichiro Mori, Keiji Mizuma, Hiroshi Ishigami
  • Publication number: 20020103911
    Abstract: A server apparatus comprises an information bubble managing unit for managing bubble data (information bubble) in which space range information including position information in a real physical space is correlated with desired supply information, an extracting unit for extracting supply information of bubble data including retrieval object space range information based on position information on a user terminal, a providing unit for providing the extracted supply information to the user terminal, and an information bubble movement control unit for updating at least position information of the bubble data to virtually move the information bubble in the real physical space. In providing an information service, it is possible to retrieve and refer information in an analog-like operation closer to human sensation in the user terminal by using an information bubble virtually registered in the real physical space, and provide information to many and unspecified users with a less number of information bubbles.
    Type: Application
    Filed: August 28, 2001
    Publication date: August 1, 2002
    Inventors: Yoshinobu Meifu, Keiji Mizuma, Hideyuki Aoki
  • Publication number: 20020046212
    Abstract: The present invention relates to a positional information service. A service center comprises a database for retaining bubble data in which spatial range information in a three-dimensional space is associated with retrieval information for obtaining service information to be provided, an extracting section for extracting, on the basis of positional information transmitted from the user terminal, specified retrieval information corresponding to specified spatial range information including the positional information, of the spatial range related in the database, and a providing section for providing, to the terminal, specified service information corresponding to the specified retrieval information extracted in the extracting section. This enables acquisition of information on a building in a predetermined range from the user terminal position or service information on a store existing in a specified building in a visual range, and further allows precise seizing of the user's moving direction.
    Type: Application
    Filed: March 15, 2001
    Publication date: April 18, 2002
    Inventors: Yoshinobu Meifu, Shinichiro Mori, Keiji Mizuma
  • Publication number: 20020004723
    Abstract: The present invention relates to a golf data management system that stores and manages golf score data, and to a data center and a golf data management method. This golf data management system includes a portable communication terminal that is carried by a player and a data center connected to the portable communication terminal via a communication network. The data center includes: an individual data storage unit that stores and manages play data supplied from the portable communication unit and practice data supplied from a practice data processing unit; a group data storage unit that manages performances of a group of accompanying players; and a common data storage unit that stores course map data of a plurality of golf courses. In response to an advice request containing measurement data obtained by a measuring unit in the portable communication terminal, the data center provides advice for each individual player based on the data stored in the individual data storage unit.
    Type: Application
    Filed: February 8, 2001
    Publication date: January 10, 2002
    Inventors: Yoshinobu Meifu, Keiji Mizuma, Hiroshi Saito
  • Patent number: 5956719
    Abstract: A method of synchronization applied to databases of a network management system which establishes synchronization between a database of a managing system and a database of a managed system, and thereby facilitates the establishment of an initial database and reconfiguration of the same.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: September 21, 1999
    Assignee: Fujitsu Limited
    Inventors: Miki Kudo, Akinori Kamijo, Masaharu Kamata, Keiji Mizuma, Yoshihiro Kozaki
  • Patent number: 5910952
    Abstract: A call restriction system for an ATM exchange reduces the load on the call control processor and achieves a step-wise variation in the degree of call restriction in response to the degree of load in an ATM exchange. The exchange has at least one circuit interface section to which are connected a plurality of physical circuits The exchange terminates the physical circuits and a call control processor which is connected to the circuit interface section or sections and performs call-processing control. A signal control processing unit within the circuit interface section performs call restriction with respect to each individual physical circuit, either in response to an instruction from the call control processor or independently.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: June 8, 1999
    Assignee: Fujitsu Limited
    Inventors: Keiji Mizuma, Izumi Kobayashi