Patents by Inventor Shusuke Saito

Shusuke Saito 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).

  • Electronic expansion valve
    Patent number: 8857788
    Abstract: An electronic expansion valve (50) includes a small hole (54a) that expands a refrigerant, a valve body (55c) that opens and closes the small hole, an elastic member (70) that urges the valve body to close the small hole, and a solenoid (61) that suctions the valve body to open the small hole, and expands the refrigerant by opening and closing the valve body. The elastic member is a disc spring in which a plurality of slits (73) formed in a spiral form is provided at mutually equal pitches on the perimeter. Therefore, there is no need for a guide, the occurrence of sludge due to sliding is suppressed, and the electronic expansion valve operates stably over a long period.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: October 14, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Yasutaka Sanuki, Yukihiro Takano, Naoki Inoshita, Koji Takiguchi, Shusuke Saito, Nobutoshi Migishima
  • ELECTRONIC EXPANSION VALVE
    Publication number: 20120326064
    Abstract: An electronic expansion valve (50) includes a small hole (54a) that expands a refrigerant, a valve body (55c) that opens and closes the small hole, an elastic member (70) that urges the valve body to close the small hole, and a solenoid (61) that suctions the valve body to open the small hole, and expands the refrigerant by opening and closing the valve body. The elastic member is a disc spring in which a plurality of slits (73) formed in a spiral form is provided at mutually equal pitches on the perimeter. Therefore, there is no need for a guide, the occurrence of sludge due to sliding is suppressed, and the electronic expansion valve operates stably over a long period.
    Type: Application
    Filed: March 10, 2011
    Publication date: December 27, 2012
    Applicant: FUJI ELECTRIC RETAIL SYSTEMS CO., LTD.
    Inventors: Yasutaka Sanuki, Yukihiro Takano, Naoki Inoshita, Koji Takiguchi, Shusuke Saito, Nobutoshi Migishima