Patents by Inventor Luong Cao DAI

Luong Cao DAI 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: 11802635
    Abstract: An electromagnetic valve includes: a solenoid having a plunger movably supported along an axis O1 direction; a flow path member having a fluid passage flow path and a valve element housing portion; and a valve element in a columnar shape that is disposed in the valve element housing portion, is movable along the axis O1 direction together with the plunger, and can switch between an open state and a closed state. The flow path member has an abutment portion that abuts on the valve element in the valve element housing portion, and a biasing member that biases the valve element. The valve element has an enlarged-diameter portion on the radially outer side. The enlarged-diameter portion has an opposing surface portion opposing the abutment portion at least in the axis O1 direction. The opposing surface portion is in contact with the abutment portion in the open state.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: October 31, 2023
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Kenta Kuramochi, Satoshi Yabushita, Tomohiko Nakanishi, Hiroki Shimizu, Luong Cao Dai
  • Publication number: 20220307623
    Abstract: An electromagnetic valve includes: a solenoid having a plunger movably supported along an axis O1 direction; a flow path member having a fluid passage flow path and a valve element housing portion; and a valve element in a columnar shape that is disposed in the valve element housing portion, is movable along the axis O1 direction together with the plunger, and can switch between an open state and a closed state. The flow path member has an abutment portion that abuts on the valve element in the valve element housing portion, and a biasing member that biases the valve element. The valve element has an enlarged-diameter portion on the radially outer side. The enlarged-diameter portion has an opposing surface portion opposing the abutment portion at least in the axis O1 direction. The opposing surface portion is in contact with the abutment portion in the open state.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 29, 2022
    Inventors: Kenta KURAMOCHI, Satoshi YABUSHITA, Tomohiko NAKANISHI, Hiroki SHIMIZU, Luong Cao DAI