Patents by Inventor Natsuki ARAKAWA

Natsuki ARAKAWA 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).

  • Level shift device and IC device
    Patent number: 10498337
    Abstract: A level shift device includes a high breakdown voltage element in which a voltage of an internal power supply part is applied to a gate, an external input signal is input from outside to one of a source and a drain, and the other one of the source and the drain outputs an intermediate output signal of the same phase as that of the external input signal, and a comparator comparing the intermediate output signal with a threshold value so as to perform conversion into a Hi/Lo signal defined by a voltage of the internal power supply part and outputting the signal to an internal processing circuit. The high breakdown voltage element, the comparator, the processing circuit, and the internal power supply part are enclosed in the device.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: December 3, 2019
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Yuichiro Mori, Junichi Matsubara, Natsuki Arakawa
  • Signal processing device
    Patent number: 10483964
    Abstract: A signal processing device includes an input terminal configured to be input with an input signal that is active high or an input signal that is active low, a switching terminal connectable to a power supply or ground, a selection circuit configured to select and output the input signal that is active high in a case that the switching terminal is connected to the power supply and select and output the input signal that is active low in a case that the switching terminal is connected to the ground.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 19, 2019
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Natsuki Arakawa, Junichi Matsubara, Satoki Uruno, Kengo Shima, Daisuke Aoki, Yuichiro Mori
  • LEVEL SHIFT DEVICE AND IC DEVICE
    Publication number: 20190214992
    Abstract: A level shift device includes a high breakdown voltage element in which a voltage of an internal power supply part is applied to a gate, an external input signal is input from outside to one of a source and a drain, and the other one of the source and the drain outputs an intermediate output signal of the same phase as that of the external input signal, and a comparator comparing the intermediate output signal with a threshold value so as to perform conversion into a Hi/Lo signal defined by a voltage of the internal power supply part and outputting the signal to an internal processing circuit. The high breakdown voltage element, the comparator, the processing circuit, and the internal power supply part are enclosed in the device.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 11, 2019
    Inventors: Yuichiro MORI, Junichi MATSUBARA, Natsuki ARAKAWA
  • SIGNAL PROCESSING DEVICE
    Publication number: 20190149147
    Abstract: A signal processing device includes an input terminal configured to be input with an input signal that is active high or an input signal that is active low, a switching terminal connectable to a power supply or ground, a selection circuit configured to select and output the input signal that is active high in a case that the switching terminal is connected to the power supply and select and output the input signal that is active low in a case that the switching terminal is connected to the ground.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Natsuki ARAKAWA, Junichi MATSUBARA, Satoki URUNO, Kengo SHIMA, Daisuke AOKI, Yuichiro MORI