Patents by Inventor Katsushi Hatano

Katsushi Hatano 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).

  • Flow passage unit and switching valve
    Patent number: 10006474
    Abstract: A flow passage unit of a switching valve includes an energy-saving valve mechanism provided in a second flow passage of a flow passage body. The energy-saving valve mechanism has a movable body including a piston section and a valve member, and an elastic member that biases the movable body elastically. At a time that compressed air is supplied to the second flow passage, when a force that acts on the piston section based on the pressure of a first flow passage becomes smaller than a biasing force of the elastic member, due to the biasing force of the elastic member, the movable body is moved to a valve-closed position for blocking the second flow passage.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 26, 2018
    Assignee: SMC CORPORATION
    Inventors: Masayuki Oshima, Katsushi Hatano
  • Flow passage switching unit
    Patent number: 9903484
    Abstract: A flow passage switching unit includes a valve body in which plural ports are formed, a spool arranged slidably in axial directions in the interior of the valve body, a spool drive unit for driving the spool in an A direction, a biasing mechanism that is configured to bias the spool elastically in the interior of the valve body, and a piston section that exerts a force on the spool in a B direction based on the pressure of a first output port.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 27, 2018
    Assignee: SMC CORPORATION
    Inventor: Katsushi Hatano
  • FLOW PASSAGE UNIT AND SWITCHING VALVE
    Publication number: 20160327069
    Abstract: A flow passage unit of a switching valve includes an energy-saving valve mechanism provided in a second flow passage of a flow passage body. The energy-saving valve mechanism has a movable body including a piston section and a valve member, and an elastic member that biases the movable body elastically. At a time that compressed air is supplied to the second flow passage, when a force that acts on the piston section based on the pressure of a first flow passage becomes smaller than a biasing force of the elastic member, due to the biasing force of the elastic member, the movable body is moved to a valve-closed position for blocking the second flow passage.
    Type: Application
    Filed: April 19, 2016
    Publication date: November 10, 2016
    Applicant: SMC CORPORATION
    Inventors: Masayuki OSHIMA, Katsushi HATANO
  • FLOW PASSAGE SWITCHING UNIT
    Publication number: 20160327168
    Abstract: A flow passage switching unit includes a valve body in which plural ports are formed, a spool arranged slidably in axial directions in the interior of the valve body, a spool drive unit for driving the spool in an A direction, a biasing mechanism that is configured to bias the spool elastically in the interior of the valve body, and a piston section that exerts a force on the spool in a B direction based on the pressure of a first output port.
    Type: Application
    Filed: April 15, 2016
    Publication date: November 10, 2016
    Applicant: SMC Corporation
    Inventor: Katsushi HATANO
  • Electromagnetic valve
    Patent number: D725231
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: March 24, 2015
    Assignee: SMC Corporation
    Inventors: Yoshitada Doi, Masayuki Oshima, Katsushi Hatano
  • Electromagnetic valve
    Patent number: D725232
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: March 24, 2015
    Assignee: SMC Corporation
    Inventors: Yoshitada Doi, Masayuki Oshima, Katsushi Hatano