Patents by Inventor Hirokatsu SUNAKAWA

Hirokatsu SUNAKAWA 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).

  • WATER LEVEL GAUGE, WATER PRESSURE SENSOR DEVICE, AND WATER LEVEL MEASUREMENT SYSTEM
    Publication number: 20180224314
    Abstract: A water level gauge according to one aspect of the present invention includes a first communicator configured to receive a first wireless signal indicating an absolute value of water pressure from a water pressure sensor device capable of measuring the absolute value of the water pressure, and a water level calculator configured to calculate a water level on the basis of the absolute value of the water pressure indicated by the first wireless signal received by the first communicator and an atmospheric pressure measured by a barometer.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 9, 2018
    Applicant: Yokogawa Electric Corporation
    Inventors: Yusaku YOSHIDA, Takashi ARAI, Hirokatsu SUNAKAWA, Ryuichiro NODA