Patents by Inventor Keiichi NANBU

Keiichi NANBU 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: 9654319
    Abstract: Provided is a non-contact communication apparatus which uses a conventional IC chip without any change, while eliminating the need to transmit power to the IC chip and allowing an increase in communication range. A non-contact communication apparatus connectable to an IC chip includes an antenna section, a first detection section that retrieves a first detection signal from a signal received by the antenna section, an amplitude modulating section that amplitude-modulates a clock signal using the first detection signal retrieved by the first detection section and that inputs the amplitude-modulated signal to the IC chip, a second detection section that retrieves a second detection signal from an output signal from the IC chip, a load modulating section that load-modulates a carrier retrieved from the antenna section using the second detection signal retrieved by the second detection section and that inputs the load-modulated carrier to the antenna section, and a power supply section.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: May 16, 2017
    Assignee: QUADRAC CO., LTD.
    Inventors: Susumu Kusakabe, Fumio Kubono, Masanobu Sato, Keiichi Nanbu
  • Publication number: 20160134450
    Abstract: Provided is a non-contact communication apparatus which uses a conventional IC chip without any change, while eliminating the need to transmit power to the IC chip and allowing an increase in communication range. A non-contact communication apparatus connectable to an IC chip includes an antenna section, a first detection section that retrieves a first detection signal from a signal received by the antenna section, an amplitude modulating section that amplitude-modulates a clock signal using the first detection signal retrieved by the first detection section and that inputs the amplitude-modulated signal to the IC chip, a second detection section that retrieves a second detection signal from an output signal from the IC chip, a load modulating section that load-modulates a carrier retrieved from the antenna section using the second detection signal retrieved by the second detection section and that inputs the load-modulated carrier to the antenna section, and a power supply section.
    Type: Application
    Filed: June 13, 2013
    Publication date: May 12, 2016
    Applicants: QUADRAC Co., Ltd., JR East Mechatronics Co., Ltd.
    Inventors: Susumu KUSAKABE, Fumio KUBONO, Masanobu SATO, Keiichi NANBU