Patents by Inventor Yoshihiro Hayama

Yoshihiro Hayama 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).

  • Patent number: 11994120
    Abstract: A capacity control valve includes a valve housing provided with a discharge port, suction ports, a control port allowing a control fluid of a control pressure Pc to pass therethrough and a primary valve including a primary valve seat and a primary valve body driven by a solenoid and opening and closing a communication between the discharge port and the control port by the movement of the primary valve body. The capacity control valve further includes a CS valve which includes a CS valve body, a first spring urging the CS valve body in a closing direction, and a second spring urging the CS valve body in an opening direction, the control port and the suction port being opened at a valve closed position of the primary valve body, the control port and the suction port being closed at a valve opened position of the primary valve body.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 28, 2024
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masahiro Hayama, Kohei Fukudome, Takahiro Ejima, Daichi Kurihara, Wataru Takahashi, Keigo Shirafuji, Yoshihiro Ogawa
  • Patent number: 4408639
    Abstract: A coil manufacturing apparatus comprises a mandrel wire, a guide for guiding the mandrel wire in its longitudinal movement, a coiling device guiding a filament wire while revolving around the mandrel wire to coil the filament wire around the mandrel wire, and a transfer device for moving the mandrel wire along the longitudinal direction thereof. The transfer device includes holding jaws to hold only the mandrel wire and driving screws for moving the holding jaws along the longitudinal direction from a first position to a second position which is farther from the guide than the first position is.
    Type: Grant
    Filed: December 23, 1980
    Date of Patent: October 11, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Yoshihiro Hayama, Yuukou Hosokawa