Patents by Inventor Masashi YAZAWA

Masashi YAZAWA 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 valve having a valve body with a constricted surface portion
    Patent number: 10344872
    Abstract: An electric valve includes a seating surface portion attached to a valve seat and a curved surface portion inserted into a valve port that are disposed in a valve body. A constricted surface portion smaller in outer diameter than an upper end portion of the curved surface portion is provided between the seating surface portion and the curved surface portion. As a result, a rising flow rate can be sufficiently reduced and controllability in a low flow range can be effectively improved with management of the rising flow rate simplified.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: July 9, 2019
    Assignee: FUJIKOKI CORPORATION
    Inventors: Masashi Yazawa, Tatsuya Yoshida, Tomokazu Kiuchi
  • ELECTRIC VALVE
    Publication number: 20180238455
    Abstract: [Object] Provided is an electric valve with which a rising flow rate can be sufficiently reduced and controllability in a low flow range can be effectively improved with management of the rising flow rate simplified. [Solving Means] A seating surface portion 14a attached to a valve seat 46a and a curved surface portion 14b inserted into a valve port 46 are disposed in a valve body 14 and a constricted surface portion 14c smaller in outer diameter than an upper end portion of the curved surface portion 14b is provided between the seating surface portion 14a and the curved surface portion 14b.
    Type: Application
    Filed: January 22, 2018
    Publication date: August 23, 2018
    Inventors: Masashi YAZAWA, Tatsuya YOSHIDA, Tomokazu KIUCHI