Patents by Inventor Shinpei Kawakatsu

Shinpei Kawakatsu 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: 8818388
    Abstract: An object is to provide a communication device, a communication system, and a restricting method permitting a communication restriction for each service class. A user equipment 100 has a memory unit 102 which stores service class information showing correspondence between service classes indicative of available communication services, and service class codes to discriminate the service classes. A notice information transmitting unit 101 then receives a restriction message indicative of a service class number from an RNC 200. When the restriction message including the service class number is received, a restricting unit 104 specifies a service class corresponding to the service class number stored in the memory unit 102 and implements a communication restriction in the service class on a communication processing unit 105.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: August 26, 2014
    Assignee: NTT Docomo, Inc.
    Inventors: Katsuhiro Noguchi, Shinpei Kawakatsu
  • Publication number: 20130281011
    Abstract: An object is to provide a communication device, a communication system, and a restricting method permitting a communication restriction for each service class. A user equipment 100 has a memory unit 102 which stores service class information showing correspondence between service classes indicative of available communication services, and service class codes to discriminate the service classes. A notice information transmitting unit 101 then receives a restriction message indicative of a service class number from an RNC 200. When the restriction message including the service class number is received, a restricting unit 104 specifies a service class corresponding to the service class number stored in the memory unit 102 and implements a communication restriction in the service class on a communication processing unit 105.
    Type: Application
    Filed: June 12, 2013
    Publication date: October 24, 2013
    Inventors: Katsuhiro NOGUCHI, Shinpei Kawakatsu
  • Patent number: 8494536
    Abstract: A communication device, a communication system, and a restricting method permitting a communication restriction for each service class. A user equipment has a memory unit which stores service class information showing correspondence between service classes indicative of available communication services, and service class codes to discriminate the service classes. A notice information receiving unit then receives a restriction message indicative of a service class number from an RNC. When the restriction message including the service class number is received, a restricting unit specifies a service class corresponding to the service class number stored in the memory unit and implements a communication restriction in the service class on a communication processing unit.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: July 23, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Shinpei Kawakatsu
  • Patent number: 8422423
    Abstract: A packet communication method of the present invention includes a step of: receiving, at a mobile station (UE), restriction information for accepting an incoming call and restricting an outgoing call; establishing, at the mobile station (UE), a control path with a packet exchange (SGSN) in response to incoming of paging for the mobile station (UE); sending, the packet exchange (SGSN), a message instructing to establish the data path via the control path; and establishing, at the mobile station (UE), the data path by calling to the packet exchange (SGSN), when the mobile station (UE) receives the message after the mobile station (UE) has received the restriction information.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: April 16, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Masashi Kanauchi, Kota Fujimura, Shinpei Kawakatsu
  • Patent number: 8140082
    Abstract: A communication system according to the present invention includes: a mobile station 10; an access point located on a radio access system; and a switch apparatus 30 connected to the radio access system, wherein a secured connection between a mobile station 10 and the access point 20 has been already established. The mobile station 10 includes a judgment unit 30 configured to judge whether or not to establish a secured connection between the mobile station 10 and the switch apparatus 30.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: March 20, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Takuhisa Tahara, Akimichi Tanabe, Katsuhiro Noguchi, Shinpei Kawakatsu
  • Publication number: 20100203896
    Abstract: A communication device, a communication system, and a restricting method permitting a communication restriction for each service class. A user equipment has a memory unit which stores service class information showing correspondence between service classes indicative of available communication services, and service class codes to discriminate the service classes. A notice information receiving unit then receives a restriction message indicative of a service class number from an RNC. When the restriction message including the service class number is received, a restricting unit specifies a service class corresponding to the service class number stored in the memory unit and implements a communication restriction in the service class on a communication processing unit.
    Type: Application
    Filed: May 29, 2008
    Publication date: August 12, 2010
    Applicant: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Shinpei Kawakatsu
  • Publication number: 20100074171
    Abstract: A packet communication method of the present invention includes a step of: receiving, at a mobile station (UE), restriction information for accepting an incoming call and restricting an outgoing call; establishing, at the mobile station (UE), a control path with a packet exchange (SGSN) in response to incoming of paging for the mobile station (UE); sending, the packet exchange (SGSN), a message instructing to establish the data path via the control path; and establishing, at the mobile station (UE), the data path by calling to the packet exchange (SGSN), when the mobile station (UE) receives the message after the mobile station (UE) has received the restriction information.
    Type: Application
    Filed: October 11, 2007
    Publication date: March 25, 2010
    Applicant: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Masashi Kanauchi, Kota Fujimura, Shinpei Kawakatsu
  • Publication number: 20080305767
    Abstract: A communication system according to the present invention includes: a mobile station 10; an access point located on a radio access system; and a switch apparatus 30 connected to the radio access system, wherein a secured connection between a mobile station 10 and the access point 20 has been already established. The mobile station 10 includes a judgment unit 30 configured to judge whether or not to establish a secured connection between the mobile station 10 and the switch apparatus 30.
    Type: Application
    Filed: November 1, 2006
    Publication date: December 11, 2008
    Applicant: NTT DoCoMo, Inc.
    Inventors: Takuhisa Tahara, Akimichi Tanabe, Katsuhiro Noguchi, Shinpei Kawakatsu