Patents by Inventor Masami Takemasa

Masami Takemasa 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: 5798589
    Abstract: The present invention offers a simple structure that facilitates the mounting of bearings, that maintains lubricating oil at a sufficient level in the bearing portions and that maintains an optimal distance between a rotor and a case housing for preventing freezing, for preventing reduction of the capacity and for preventing noise. Bearing stoppers provided between the bearings of the brushless motor and the bearing holders, which hold the upper end edge of each bearing, are secured at a projection formed at the internal circumferential surface of each bearing holder. A felt, which comes in contact with the lower portion of each bearing stopper and also comes in contact with the bearing at one side is provided, with holes communicating with the felt formed at the lower surface of the bearing stopper. In addition, the lower limit of the distance h between the lower end of the rotor and the upper end surface of the case housing is set at 1.5 mm.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: August 25, 1998
    Assignee: Zexel Corporation
    Inventors: Shinichi Ohi, Fuhito Umegaki, Masami Takemasa, Tatsuo Haraguchi, Yoshihide Gunji, Hiroshi Ohsawa
  • Patent number: 4871011
    Abstract: An air-conditioning equipment for a vehicle includes first and second local shutter control units each having a motor for moving a shutter, a drive circuit for driving the motor, a controlling device responsive to a heat load signal to control the drive circuit to thereby control the shutter in accordance with the heat load signal, and a blower control unit responsive to changes in opening of the shutter to control the rate of an air flow. Since separate shutter control units are provided, each shutter can be controlled independently, thus preventing all the air-conditioning functions from halting simutaneously otherwise occurred in conventional air-conditioning equipment having a central control unit or microcomputer.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: October 3, 1989
    Assignee: Diesel Kiki K.K.
    Inventors: Tadahiro Takahashi, Shinichi Ooi, Masami Takemasa
  • Patent number: 4677902
    Abstract: When a power switch of a blower and a second mode switch are both turned on, a door at the exit of a deodorizer containing a volatile deodorant is opened to allow the deodorant to volatilize and diffuse into an air blast duct through a passage extending between the deodorizer and the duct, whereby the deodorant deodorizes the air to be blown into the passenger compartment. The second mode switch is any one of the power switch for the air conditioning system, the power switch for a driving device to open and close the door, and the mode switch to select a upward blower outlet.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: July 7, 1987
    Assignee: Diesel Kiki Co., Ltd.
    Inventor: Masami Takemasa