Patents by Inventor Hideyuki UMEDA

Hideyuki UMEDA 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).

  • Publication number: 20110152030
    Abstract: A conical friction ring type CVT device configured with a ring interposed between opposing inclined surfaces of first and second friction wheels so as to surround the first wheel. A portion of the ring is submerged in an oil reservoir, and power is transmitted by contact between the ring and the first and second wheels, such that the ring in moves in the axial direction to steplessly changes speed. When the CVT device is mounted in a vehicle, a rotational direction is set such that, during forward travel of the vehicle, opposing, portions of the first and second wheels move upward from below. An oil strainer is disposed on a side of the second wheel opposite the axis of the first wheel with respect to the axis of the second wheel. Furthermore, a guide member is disposed on at least an upper portion of the second wheel.
    Type: Application
    Filed: October 26, 2010
    Publication date: June 23, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Mitsugi YAMASHITA, Shoji TAKAHASHI, Hideyuki UMEDA
  • Publication number: 20110143881
    Abstract: A conical friction ring type continuously variable transmission device configured a ring is provided such that it is interposed between opposing inclined surfaces of a first and second conical friction wheels so as to surround the first conical friction wheel. In this configuration, power is transmitted by contact between the ring and the first and second conical friction wheels, which moves the ring in the axial direction to steplessly change speed. A portion of the ring is submerged in an oil reservoir in a lower portion of the space when the ring is moved to any position in the axial direction. An oil guide is disposed on an axial partial region on the small diameter side of the first conical friction wheel, and guides oil raked up from the oil reservoir due to the rotation of the ring toward the first conical friction wheel.
    Type: Application
    Filed: October 26, 2010
    Publication date: June 16, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Mitsugi YAMASHITA, Shoji TAKAHASHI, Hideyuki UMEDA
  • Publication number: 20110070995
    Abstract: A hybrid drive system configured with an input shaft and a friction type continuously variable transmission (CVT) device. The CVT includes an input member drivingly connected to the input shaft, and an output member. Rotation of the input member is steplessly changed in speed and transmitted to the output member by a shear force of an oil film interposed at the contact position. The drive system includes an electric motor having a dedicated output shaft, a differential device, and a gear transmission device that is structured from a meshing rotary transmission mechanism. A case includes at least a first space filled with traction oil and accommodating the CVT device, and a second space filled with lubricant oil and accommodating the gear transmission device.
    Type: Application
    Filed: August 5, 2010
    Publication date: March 24, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Mitsugi YAMASHITA, Shoji TAKAHASHI, Hideyuki UMEDA