Patents by Inventor Yoshihiko MOROKUMA

Yoshihiko MOROKUMA 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).

  • Drain valve device for cleaning water tank, and drain valve for drain valve device
    Patent number: 8510876
    Abstract: A drain valve device and a drain valve for a cleaning water tank are disclosed. A drain valve device for a cleaning water tank which stores a cleaning water for cleaning a toilet bowl, comprises a drain valve main body including a supporting shaft extending in a horizontal direction and a valve seat attached to a draining port formed at a bottom surface of the cleaning water tank, and a drain valve including an engaging portion which engages with the supporting shaft and is capable of swinging in a vertical direction, and a valve body, connected with the engaging portion through an extending portion, for carrying out a water discharge and a water stop when contacting with or separating from the valve seat by swinging in a vertical direction.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: August 20, 2013
    Assignee: Toto Ltd.
    Inventors: Koji Sakemi, Yoshihiko Morokuma
  • DRAIN VALVE DEVICE FOR CLEANING WATER TANK, AND DRAIN VALVE FOR DRAIN VALVE DEVICE
    Publication number: 20100077545
    Abstract: A drain valve device and a drain valve for a cleaning water tank are disclosed. A drain valve device for a cleaning water tank which stores a cleaning water for cleaning a toilet bowl, comprises a drain valve main body including a supporting shaft extending in a horizontal direction and a valve seat attached to a draining port formed at a bottom surface of the cleaning water tank, and a drain valve including an engaging portion which engages with the supporting shaft and is capable of swinging in a vertical direction, and a valve body, connected with the engaging portion through an extending portion, for carrying out a water discharge and a water stop when contacting with or separating from the valve seat by swinging in a vertical direction.
    Type: Application
    Filed: September 28, 2009
    Publication date: April 1, 2010
    Applicant: TOTO LTD.
    Inventors: Koji SAKEMI, Yoshihiko MOROKUMA