Patents by Inventor Mikihiro Kondoh

Mikihiro Kondoh 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).

  • Method of measuring characteristics of a DC motor, apparatus for implementing the method, and method of calculating inductive voltage thereof
    Patent number: 5811668
    Abstract: Electric current supplied to a DC motor and a rotational speed thereof are measured. An inductive voltage is calculated based on a relationship that the elapse of time after the application of a voltage to the DC motor is stopped is proportional to the voltage across the terminals of the DC motor. The electric current supplied to the DC motor when the rotation of the DC motor is locked is measured by applying the voltage to the DC motor when a magnetic pole of a stator of the DC motor is not magnetized. The torque of the DC motor when the rotation of the DC motor is locked is measured based on the electric current supplied to the DC motor and the rotational speed thereof when it rotates, the electric current supplied to the DC motor when the rotation of the DC motor is locked, and the inductive voltage. The torque of the DC motor when the rotation of the DC motor is locked is used to determine the torque characteristics thereof.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 22, 1998
    Assignees: ASMO Co., Ltd., Denso Corporation
    Inventors: Mikihiro Kondoh, Kaneyoshi Nagatani
  • Variable-driving unit for wipers and a wiper device incorporating the same
    Patent number: 5095255
    Abstract: An automobile wiper device includes a variable-driving unit capable of adjustably changing at least one of the arm pressure and the wiping area of the wiper device.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 10, 1992
    Assignee: ASMO Co., Ltd.
    Inventors: Yukio Honda, Mikihiro Kondoh, Hiroshi Takahashi
  • Variable-driving unit for wipers and a wiper device incorporating the same
    Patent number: 4993102
    Abstract: An automobile wiper device includes a variable-driving unit capable of adjustably changing at least one of the arm pressure and the wiping area of the wiper device.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: February 19, 1991
    Assignee: Asmo Co., Ltd.
    Inventors: Yukio Honda, Mikihiro Kondoh, Hiroshi Takahashi