Patents by Inventor Kohei HAMAMURA

Kohei HAMAMURA 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).

  • Electric field communication system
    Patent number: 11876575
    Abstract: Electric field communication that adopts a metal as a communication medium is performed. An electric field communication system communicating through an electric field, includes: a communication medium made of a material capable of transmitting the electric field; a first transmitter that generates an electric field dependent on a potential difference between a first electrode, which is disposed on a side of the communication medium and is connected to the communication medium via a coupling capacitance, and a second electrode connected to an earth ground via a coupling capacitance, with the first electrode being connected on a signal side of the transmitter, and the second electrode being connected on a ground side of the transmitter; and a first receiver disposed in contact with the communication medium, wherein the first transmitter and the first receiver communicate with each other through the electric field via the communication medium.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 16, 2024
    Assignees: NEXTY ELECTRONICS CORPORATION, HOSEI UNIVERSITY
    Inventors: Mitsuru Shinagawa, Kohei Hamamura, Hiroshi Nakamura, Naohiro Shimizu
  • ELECTRIC FIELD COMMUNICATION SYSTEM
    Publication number: 20220255586
    Abstract: Electric field communication that adopts a metal as a communication medium is performed. An electric field communication system communicating through an electric field, includes: a communication medium made of a material capable of transmitting the electric field; a first transmitter that generates an electric field dependent on a potential difference between a first electrode, which is disposed on a side of the communication medium and is connected to the communication medium via a coupling capacitance, and a second electrode connected to an earth ground via a coupling capacitance, with the first electrode being connected on a signal side of the transmitter, and the second electrode being connected on a ground side of the transmitter; and a first receiver disposed in contact with the communication medium, wherein the first transmitter and the first receiver communicate with each other through the electric field via the communication medium.
    Type: Application
    Filed: June 30, 2020
    Publication date: August 11, 2022
    Inventors: Mitsuru SHINAGAWA, Kohei HAMAMURA, Hiroshi NAKAMURA, Naohiro SHIMIZU