Patents by Inventor Shoichi Hirata

Shoichi Hirata 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: 11421778
    Abstract: As a driving source, an engine and an assist motor are provided. An engine control module includes a torque assist control unit for controlling the assist motor by a plurality of types of switching patterns having different torque assist levels. A CVT control unit includes a torque assist coordination control unit that, when a torque assist request is input from the torque assist control unit, carries out the control that increases commanded hydraulic pressure so as to increase the hydraulic pressure of hydraulically operated members. When carrying out the control that increases the commanded hydraulic pressure, the torque assist coordination control unit unifies the levels of the commanded hydraulic pressure regardless of the types of the switching patterns.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 23, 2022
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Shoichi Hirata, Hironori Miyaishi
  • Publication number: 20210222772
    Abstract: As a driving source, an engine and an assist motor are provided. An engine control module includes a torque assist control unit for controlling the assist motor by a plurality of types of switching patterns having different torque assist levels. A CVT control unit includes a torque assist coordination control unit that, when a torque assist request is input from the torque assist control unit, carries out the control that increases commanded hydraulic pressure so as to increase the hydraulic pressure of hydraulically operated members. When carrying out the control that increases the commanded hydraulic pressure, the torque assist coordination control unit unifies the levels of the commanded hydraulic pressure regardless of the types of the switching patterns.
    Type: Application
    Filed: August 6, 2019
    Publication date: July 22, 2021
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Shoichi HIRATA, Hironori MIYAISHI
  • Patent number: 8284670
    Abstract: A mobile communications system for transferring packets to a mobile communications terminal according to address information of the mobile communications terminal is disclosed. The mobile communications terminal is located in a moving network connected to a given node in a core network. The address information of the mobile communications terminal includes common information related to the given node to which the moving network is connected, and individual information which is unrelated to the given node to which the moving network is connected and is unchanged when the given node to which the moving network is connected is changed.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: October 9, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Toshihiro Suzuki, Ken Igarashi, Satoshi Hiyama, Hiroshi Kawakami, Shoichi Hirata
  • Publication number: 20120115504
    Abstract: There is provided a location information management system at a relatively low cost, whereby information including the location information of a vehicle can be managed without affecting the driving. In the location management system including abase transceiver station for transmitting a signal including base transceiver station identifying information, a ubiquitous module 201 for receiving the signal including the base transceiver station identifying information, and an FMS 105 for communicating with the ubiquitous module 201, the ubiquitous module 201 is provided with an analysis unit f306 or selecting at least one base transceiver station based upon a reception state of the signal including the base transceiver station identifying information, and a communication unit 305 for communicating the base transceiver station identifying information of the base transceiver station selected to the FMS 105.
    Type: Application
    Filed: March 31, 2010
    Publication date: May 10, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Jianfeng Zhang, Shoichi Hirata, Yuushi Makino
  • Publication number: 20120072971
    Abstract: The traffic amount of the radio communication is reduced and the load applied to the management side of the system is reduced, thereby making the data shared with only prescribed users in an efficient manner. There is provided a shared data management apparatus, for managing sharing of data stored in a plurality of data storage units, is provided with: a profile group management unit 201 for managing attribution information of users; a group processing unit 202 for creating a user group based upon the attribute information; a sharing policy management unit 203 for managing an authority information permitting a user included in the user group to share the data stored in the data storage unit, so that the profile group management unit 201 identifies the user group permitted to share the data stored based upon the authority information.
    Type: Application
    Filed: March 30, 2010
    Publication date: March 22, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Jianfeng Zhang, Shoichi Hirata, Yuushi Makino
  • Patent number: 7899458
    Abstract: A system for controlling handover is disclosed that includes a mobile terminal that enables communications with multiple wireless systems having wireless access stations, and a handover-controlling apparatus that executes control of handover for the mobile terminal, which travels among multiple types of wireless systems. The mobile terminal includes a destination wireless system determining unit that receives downlink signals from the corresponding wireless access stations so as to determine which wireless system accommodates a destination wireless access station based on reception quality of downlink signals. The mobile terminal also includes a destination wireless system reporting unit that sends information indicating the determined wireless system to the handover-controlling apparatus.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 1, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Jun Kakishima, Takeshi Ihara, Shoichi Hirata
  • Patent number: 7710956
    Abstract: A network management server includes an address manager and an address assignment direction transmitter. The address manager manages a first address, a second address and a third address of the destination mobile terminals in accordance with address assignment information received from a mobile node. The address assignment direction transmitter transmits an address assignment directions for directing a source access node to manage the first address and the second address of the destination mobile terminal, and to transmit an address assignment direction for directing a destination access node to manage the second address and the third address of the destination mobile terminal.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: May 4, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Toshihiro Suzuki, Satoshi Hiyama, Masashi Yamashita, Ken Igarashi, Shoichi Hirata
  • Patent number: 7613143
    Abstract: A network control system, which controls connections between a mobile terminal and multiple types of wireless systems accommodated in a network, includes a prescribed node provided on the network. The node comprises signal transmitting/receiving means that transmits and receives a control signal defined by each of the wireless systems, protocol converting means that converts the control signal to a common protocol independent of each of the wireless systems, and entity communication controlling means that communicates with multiple functional entities provided on the network, using the common protocol, to implement network control.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: November 3, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Jun Kakishima, Masahiro Sawada, Takeshi Ihara, Shoichi Hirata
  • Patent number: 7349697
    Abstract: A mobile terminal can be loaded with a plurality of subscriber identity module cards at the same time, and register the condition to a mobile communication network. The mobile terminal comprises detects a loading of a recording medium (such as an IC card like the SIM card), and transmits, when the detecting means detects at least two recording media, first subscriber identity information (e.g. IMSI, TMSI, etc.) corresponding to a first recording medium and second subscriber identity information corresponding to a newly detected recording medium, to the subscriber information management apparatus such as a visitor location register (VLR). The subscriber information management apparatus registers location area information of the first subscriber identity information as location area information associated with the second subscriber identity information.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: March 25, 2008
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hidetoshi Onaka, Shoichi Hirata
  • Publication number: 20080013483
    Abstract: A mobile communications system for transferring packets to a mobile communications terminal according to address information of the mobile communications terminal is disclosed. The mobile communications terminal is located in a moving network connected to a given node in a core network. The address information of the mobile communications terminal includes common information related to the given node to which the moving network is connected, and individual information which is unrelated to the given node to which the moving network is connected and is unchanged when the given node to which the moving network is connected is changed.
    Type: Application
    Filed: September 6, 2007
    Publication date: January 17, 2008
    Applicant: NTT DoCoMo, Inc
    Inventors: Toshihiro SUZUKI, Ken Igarashi, Satoshi Hiyama, Hiroshi Kawakami, Shoichi Hirata
  • Patent number: 7302262
    Abstract: A mobile communications control method of this invention controls mobile communication by a mobile terminal in a network in which a plurality of wireless systems are available. In the mobile communications control method, the mobile terminal performs location registration with a wireless system selected from among the wireless systems, based on at least one of a status of the network, a status of the mobile terminal, location information of the mobile terminal, a frequency of incoming call reception of the mobile terminal, and service area information of the wireless systems.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: November 27, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yugo Watanabe, Masashi Yamashita, Satoshi Hiyama, Shoichi Hirata
  • Publication number: 20070224994
    Abstract: A system for controlling handover is disclosed that includes a mobile terminal that enables communications with multiple wireless systems having wireless access stations, and a handover-controlling apparatus that executes control of handover for the mobile terminal, which travels among multiple types of wireless systems. The mobile terminal includes a destination wireless system determining unit that receives downlink signals from the corresponding wireless access stations so as to determine which wireless system accommodates a destination wireless access station based on reception quality of downlink signals. The mobile terminal also includes a destination wireless system reporting unit that sends information indicating the determined wireless system to the handover-controlling apparatus.
    Type: Application
    Filed: May 29, 2007
    Publication date: September 27, 2007
    Applicant: NTT DoCoMo, Inc.
    Inventors: Jun Kakishima, Takeshi Ihara, Shoichi Hirata
  • Publication number: 20070036103
    Abstract: In a mobile communication network comprised of a plurality of switching devices and a plurality of base stations connected to the switching devices, while a mobile terminal to wirelessly communicate with the base stations is in a communication by a soft handover, a terminal endpoint of a protocol for control of the soft handover is relocated in changing a switching device to another as a branch/combining point of data on a communication route of the communication.
    Type: Application
    Filed: October 24, 2006
    Publication date: February 15, 2007
    Inventors: Kenji Nishimura, Jun Kakishima, Shoichi Hirata, Masami Yabusaki
  • Patent number: 7151934
    Abstract: A radio data communications method capable of changing control points located in a network without causing loss of data when a mobile terminal is performing a soft handover. In the radio data communications method in which at least one of a first radio network controller and a second radio network controller performs a soft handover process for allowing a soft handover of a mobile terminal when the mobile terminal is performing soft handover, in downlink radio data communications in which the first radio network controller transmits data to a mobile terminal via a second radio network controller and a base station (or in uplink radio data communications). The first radio network controller or the second radio network controller performing the soft handover process is changed when the mobile terminal is performing the soft handover.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: December 19, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kenji Nishimura, Hiroshi Kawakami, Shoichi Hirata
  • Patent number: 7142879
    Abstract: A mobile communication network system is provided in which when a radio system is selected from plural types of radio systems as a radio system for use in paging, the optimum radio system for the mobile terminal to be paged can be selected. When it is selected, traffic does not concentrate on a specific radio system, or no excess delay occurs when the mobile terminal starts communications. When the mobile communications network system performs paging as a paging notification to a mobile terminal through any one of various radio systems under a communications environment in which radio waves of various radio systems having different communication systems are used, a radio system is selected from a plurality of radio systems depending on the application used in the communications of the paging requested mobile terminal and a paging operation is performed through the selected radio system when a paging request is issued.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: November 28, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yugo Watanabe, Satoshi Hiyama, Shoichi Hirata
  • Patent number: 7142859
    Abstract: In a mobile communication network comprised of a plurality of switching devices and a plurality of base stations connected to the switching devices, while a mobile terminal to wirelessly communicate with the base stations is in a communication by a soft handover, a terminal endpoint of a protocol for control of the soft handover is relocated in changing a switching device to another as a branch/combining point of data on a communication route of the communication.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: November 28, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kenji Nishimura, Jun Kakishima, Shoichi Hirata, Masami Yabusaki
  • Publication number: 20050085227
    Abstract: In a mobile communication network comprised of a plurality of switching devices and a plurality of base stations connected to the switching devices, while a mobile terminal to wirelessly communicate with the base stations is in a communication by a soft handover, a terminal endpoint of a protocol for control of the soft handover is relocated in changing a switching device to another as a branch/combining point of data on a communication route of the communication.
    Type: Application
    Filed: August 27, 2004
    Publication date: April 21, 2005
    Inventors: Kenji Nishimura, Jun Kakishima, Shoichi Hirata, Masami Yabusaki
  • Publication number: 20040252696
    Abstract: A network control system, which controls connections between a mobile terminal and multiple types of wireless systems accommodated in a network, includes a prescribed node provided on the network. The node comprises signal transmitting/receiving means that transmits and receives a control signal defined by each of the wireless systems, protocol converting means that converts the control signal to a common protocol independent of each of the wireless systems, and entity communication controlling means that communicates with multiple functional entities provided on the network, using the common protocol, to implement network control.
    Type: Application
    Filed: February 17, 2004
    Publication date: December 16, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Jun Kakishima, Masahiro Sawada, Takeshi Ihara, Shoichi Hirata
  • Publication number: 20040248574
    Abstract: A mobile communication network system is provided in which when a radio system is selected from plural types of radio systems as a radio system for use in paging, the optimum radio system for the mobile terminal to be paged can be selected. When it is selected, traffic does not concentrate on a specific radio system, or no excess delay occurs when the mobile terminal starts communications. When the mobile communications network system performs paging as a paging notification to a mobile terminal through any one of various radio systems under a communications environment in which radio waves of various radio systems having different communication systems are used, a radio system is selected from a plurality of radio systems depending on the application used in the communications of the paging requested mobile terminal and a paging operation is performed through the selected radio system when a paging request is issued.
    Type: Application
    Filed: May 4, 2004
    Publication date: December 9, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Yugo Watanabe, Satoshi Hiyama, Shoichi Hirata
  • Publication number: 20040229649
    Abstract: A radio data communications method capable of changing control points located in a network without causing loss of data when a mobile terminal is performing a soft handover. In the radio data communications method in which at least one of a first radio network controller and a second radio network controller performs a soft handover process for allowing a soft handover of a mobile terminal when the mobile terminal is performing soft handover, in downlink radio data communications in which the first radio network controller transmits data to a mobile terminal via a second radio network controller and a base station (or in uplink radio data communications). The first radio network controller or the second radio network controller performing the soft handover process is changed when the mobile terminal is performing the soft handover.
    Type: Application
    Filed: February 26, 2004
    Publication date: November 18, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Kenji Nishimura, Hiroshi Kawakami, Shoichi Hirata