Patents by Inventor Junichiro ITOU

Junichiro ITOU 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).

  • Fluid control valve device
    Patent number: 9638082
    Abstract: A fluid control valve device includes a seal part disposed to a valve part. The seal part is elastically deformable and contacts a valve seat when a fluid passage is closed to intercept fluid from passing through the fluid passage. The valve seat has a surface opposing the seal part, a first projection part projected from the surface toward an upper surface of the seal part and having an annular shape, and a second projection part projected from the surface toward the upper surface of the seal part on a radially outer side of the first projection part. When the fluid passage is closed by the valve part, the first projection part is in tight contact with the seal part, and the second projection part is configured to collide with the seal part.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 2, 2017
    Assignee: Hamanakodenso Co., Ltd.
    Inventors: Yasunari Fujita, Junichiro Itou
  • FLUID CONTROL VALVE DEVICE
    Publication number: 20160115845
    Abstract: A fluid control valve device includes a seal part disposed to a valve part. The seal part is elastically deformable and contacts a valve seat when a fluid passage is closed to intercept fluid from passing through the fluid passage. The valve seat has a surface opposing the seal part, a first projection part projected from the surface toward an upper surface of the seal part and having an annular shape, and a second projection part projected from the surface toward the upper surface of the seal part on a radially outer side of the first projection part. When the fluid passage is closed by the valve part, the first projection part is in tight contact with the seal part, and the second projection part is configured to collide with the seal part.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 28, 2016
    Inventors: Yasunari FUJITA, Junichiro ITOU