Patents by Inventor Tetsuya TAKEKAWA

Tetsuya TAKEKAWA 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).

  • Key telephone system, control method, terminal, and program
    Patent number: 10135998
    Abstract: A key telephone system includes a terminal and a primary device. The primary device transmits a command for transition into a power-saving state to the terminal, together with a power-saving duration time datum and/or a power-saving deactivating time datum, when the time reaches a power-saving state transition time. The terminal specifies the power-saving duration time and/or the power-saving deactivating time in the timekeeper means, and halts the communication means for communicating with the primary device at the time of receiving the command for transition into the power-saving state from the primary device, and activates the communication means being halted at a time when the timekeeper means has measured the lapse of the power-saving duration time and/or the power-saving deactivating time.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: November 20, 2018
    Assignees: NEC Platforms, Ltd., NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION, NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION
    Inventors: Hideo Maki, Norio Murakami, Shozo Shikenya, Tetsuya Takekawa, Daisuke Iwata
  • KEY TELEPHONE SYSTEM, CONTROL METHOD, TERMINAL, AND PROGRAM
    Publication number: 20160080580
    Abstract: A key telephone system includes a terminal and a primary device. The primary device transmits a command for transition into a power-saving state to the terminal, together with a power-saving duration time datum and/or a power-saving deactivating time datum, when the time reaches a power-saving state transition time. The terminal specifies the power-saving duration time and/or the power-saving deactivating time in the timekeeper means, and halts the communication means for communicating with the primary device at the time of receiving the command for transition into the power-saving state from the primary device, and activates the communication means being halted at a time when the timekeeper means has measured the lapse of the power-saving duration time and/or the power-saving deactivating time.
    Type: Application
    Filed: April 30, 2014
    Publication date: March 17, 2016
    Applicants: NEC PLATFORMS, LTD., NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION, NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION
    Inventors: Hideo MAKI, Norio MURAKAMI, Shozo SHIKENYA, Tetsuya TAKEKAWA, Daisuke IWATA