Patents by Inventor Naoki Sakamura

Naoki Sakamura 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).

  • Electromagnetic valve system
    Patent number: 11396954
    Abstract: In a control unit of an electromagnetic valve system, a safety circuit includes a first switch and a second switch for switching, by control from a control circuit supply and shutdown of power from a drive power supply to an electromagnetic valve drive circuit. A common line extends to a plurality of electromagnetic valve units and is connected to one end of a plurality of solenoids. A plurality of power lines are connected to the other end of each of the plurality of solenoids. The electromagnetic valve drive circuit includes a plurality of open/close switches for switching, by control from the control circuit, supply and shutdown of power to the plurality of solenoids.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 26, 2022
    Assignee: SMC CORPORATION
    Inventors: Naoki Sakamura, Koji Shiomi
  • ELECTROMAGNETIC VALVE SYSTEM
    Publication number: 20210041035
    Abstract: In a control unit of an electromagnetic valve system, a safety circuit includes a first switch and a second switch for switching, by control from a control circuit supply and shutdown of power from a drive power supply to an electromagnetic valve drive circuit. A common line extends to a plurality of electromagnetic valve units and is connected to one end of a plurality of solenoids. A plurality of power lines are connected to the other end of each of the plurality of solenoids. The electromagnetic valve drive circuit includes a plurality of open/close switches for switching, by control from the control circuit, supply and shutdown of power to the plurality of solenoids.
    Type: Application
    Filed: April 22, 2019
    Publication date: February 11, 2021
    Applicant: SMC CORPORATION
    Inventors: Naoki SAKAMURA, Koji SHIOMI
  • Solenoid valve system
    Patent number: 9488990
    Abstract: In a solenoid valve system, a plurality of first through third solenoid valve units are divided into a plurality of first through third groups. In this case, a safety power source control unit is provided for controlling the first through third solenoid valve units with respect to each of the first through third groups.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: November 8, 2016
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Fumio Morikawa, Naoki Sakamura
  • Signal input and output converter
    Patent number: D920909
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: June 1, 2021
    Assignee: SMC CORPORATION
    Inventors: Naoki Sakamura, Takanori Saito
  • Signal input and output converter
    Patent number: D949788
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: April 26, 2022
    Assignee: SMC CORPORATION
    Inventors: Naoki Sakamura, Takanori Saito