Patents by Inventor Shiokazu Fujiwara

Shiokazu Fujiwara 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).

  • Connection control method for personal communications
    Patent number: 5703941
    Abstract: A switching center 30 comprises a memory part M2, a memory part M3, and a memory part M4. The memory part M2 stores a terminating terminal number corresponding to and registered by each subscriber. The memory part M3 stores idle/busy information corresponding to each terminal. The memory part M4 stores idle/busy information corresponding to each subscriber. When a subscriber 11.sub.1 makes a call at a terminal 12.sub.2, the switching center 30 determines whether the idle/busy information for the subscriber 11.sub.1 stored in the memory part M4 is idle or busy. When the idle/memory information represents idle, the switching center 30 refers to the idle/busy information for the terminal 12.sub.2 stored in the memory part M3. When this idle/busy information represents idle, the switching center 30 reads out the terminal number of a terminating terminal of a terminating subscriber stored in the terminating terminal memory part M2 and performs an outgoing call connection process.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: December 30, 1997
    Assignee: NTT Mobile Communications Network, Inc.
    Inventors: Akihisa Nakajima, Masami Yabusaki, Shoichi Hirata, Kenichi Yamaguchi, Shiokazu Fujiwara, Yasuo Maruyama, Yasuyuki Uchiyama, Eriko Takemoto