Patents by Inventor Mutsumi Ishimoto

Mutsumi Ishimoto 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: 9706474
    Abstract: When a network is requiring access barring, a mobile device determines whether a reference value broadcasted to the mobile device indicates a value determining that an access is denied regardless of a numerical value generated by the mobile device, or indicates a value having a possibility that an access of a certain mobile device is denied while an access of another mobile device is allowed. In the latter case, the mobile device determines appropriateness of an access by performing predetermined processing using the reference value as a value to be checked for a relationship with a numerical value generated by the mobile device when the mobile device does not have a special type access class, and uses a value enabling allowance of an access without performing the predetermined processing as a value for determining appropriateness of an access when the mobile device has the special type access class.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: July 11, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Mikio Iwamura, Minami Ishii, Mutsumi Ishimoto
  • Patent number: 9220056
    Abstract: When a network is in a state of requiring any sort of access barring, determining whether a special type access class is included as an access class to which an own device belongs, determining appropriateness of an access by referring to, from barring information, a first barring information for designating whether a mobile device belonging to each access class is subject to access barring when having determined that the special type access class is included, and determining the appropriateness of an access by referring to, from the barring information, second barring information indicating a value serving as a reference for determining the appropriateness of an access according to a relationship between a numerical value generated by each mobile device and the reference indicated by the second barring information when having determined that the special type access class is included.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: December 22, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Mikio Iwamura, Minami Ishii, Mutsumi Ishimoto
  • Patent number: 9084182
    Abstract: When a network is in a state of requiring some sort of access barring, a reference value notified to a mobile device is determined to indicate a value in which an access of a certain mobile device is denied while an access of another mobile device is allowed. When an own device has a special type access class, it is determined that an access is allowed The appropriateness of an access is determined according to designation from the network when the own device has the special type access class, and when the own device does not have the special type access class, it is determined that an access is denied.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: July 14, 2015
    Assignee: NIT DOCOMO, INC.
    Inventors: Mikio Iwamura, Minami Ishii, Mutsumi Ishimoto
  • Publication number: 20130331099
    Abstract: When a network is in a state of requiring any sort of access barring, determining whether a special type access class is included as an access class to which an own device belongs, determining appropriateness of an access by referring to, from barring information, a first barring information for designating whether a mobile device belonging to each access class is subject to access barring when having determined that the special type access class is included, and determining the appropriateness of an access by referring to, from the barring information, second barring information indicating a value serving as a reference for determining the appropriateness of an access according to a relationship between a numerical value generated by each mobile device and the reference indicated by the second barring information when having determined that the special type access class is included.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 12, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Mikio Iwamura, Minami Ishii, Mutsumi Ishimoto
  • Publication number: 20130324118
    Abstract: When a network is in a state of requiring some sort of access barring, a reference value notified to a mobile device is determined to indicate a value in which an access of a certain mobile device is denied while an access of another mobile device is allowed. When an own device has a special type access class, it is determined that an access is allowed The appropriateness of an access is determined according to designation from the network when the own device has the special type access class, and when the own device does not have the special type access class, it is determined that an access is denied.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 5, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Mikio Iwamura, Minami Ishii, Mutsumi Ishimoto