Patents by Inventor Takumi Miyaki

Takumi Miyaki 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: 5954579
    Abstract: A female screw portion is formed around an axis of a rotor of a step motor to penetrate through the rotor in an axial direction of the rotor. A male screw portion is formed on an outer peripheral surface of a screw shaft so that the screw shaft is screwed into the female screw portion. The screw shaft is inserted in a ring rod, and a connection clip portion is connected to the ring rod. When the rotor rotates, the ring rod reciprocates linearly in the axial direction of the rotor, and vertical fins rock in the axial direction of the rotor.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: September 21, 1999
    Assignees: Denso Corporation of Kariya, Tokai Riki Mfg. Co. Ltd.
    Inventors: Toshihide Masui, Toshio Tsuboko, Yoshinaka Nakamura, Hiroaki Kodama, Fumihisa Ichioka, Takumi Miyaki, Ikuma Harada
  • Patent number: 5443241
    Abstract: An electro-magnetic drive control valve having a housing defining valve seats 54 and 66, and valve members 68 and 70 arranged so as to face the valve seat 64 and 66, respectively. The valve members 68 and 70 are formed on a valve rod 67, which is mechanically connected to a solenoid actuator 46. First and second diaphragm members 88 and 96 are provided for connecting the valve rod 67 to the housing and for sealing a flow passageway in the housing, while the valve rod 67 is axially moved by the solenoid actuator 46. The first diaphragm 88 is for sealing the flow passageway to the space 104 inside the solenoid actuator 46. The second diaphragm 96 forms a second chamber 107 on one side thereof remote from the flow passageway. An axial opening 67-2 is formed in the valve rod 67 for creating a communication passageway for connecting the chambers 104 and 106 with each other for equalizing the pressure therein.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: August 22, 1995
    Assignees: Nippondenso Co. Ltd., Tokai Riki Mfg. Co.
    Inventors: Michiya Odaira, Kazunori Sugihara, Noriyoshi Miyajima, Takumi Miyaki, Motohiko Hiramatsu