Patents by Inventor Mitsukazu Hattori

Mitsukazu Hattori 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).

  • Rotational power transfer device and related manufacturing method
    Patent number: 7870801
    Abstract: A rotational power transfer device and a method of manufacturing the same are provided. The rotational power transfer device includes a first rotary member and a second rotary member. The first rotary member has an inner periphery formed with a solid lubricating layer composed of a chemical film and molybdenum disulfide. The second rotary member has an outer cylindrical periphery applied with a layer of grease including a mixture of oil with a higher frictional coefficient than that of lubricating oil and molybdenum disulfide. The second rotary member is press fitted to the first rotary member to allow the outer cylindrical periphery thereof to be placed in face-to-face relation to the inner cylindrical periphery of the first rotary member, enabling a rotational power in excess to be stably absorbed without causing any increase in the rotational power at which the slippage occurs.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: January 18, 2011
    Assignee: Denso Corporation
    Inventors: Yukio Nawa, Mitsukazu Hattori, Yoshinori Yamaguchi
  • Rotational power transfer device and related manufacturing method
    Publication number: 20080006104
    Abstract: A rotational power transfer device and a method of manufacturing the same are provided. The rotational power transfer device includes a first rotary member and a second rotary member. The first rotary member has an inner periphery formed with a solid lubricating layer composed of a chemical film and molybdenum disulfide. The second rotary member has an outer cylindrical periphery applied with a layer of grease including a mixture of oil with a higher frictional coefficient than that of lubricating oil and molybdenum disulfide. The second rotary member is press fitted to the first rotary member to allow the outer cylindrical periphery thereof to be placed in face-to-face relation to the inner cylindrical periphery of the first rotary member, enabling a rotational power in excess to be stably absorbed without causing any increase in the rotational power at which the slippage occurs.
    Type: Application
    Filed: June 8, 2007
    Publication date: January 10, 2008
    Applicant: DENSO CORPORATION
    Inventors: Yukio Nawa, Mitsukazu Hattori, Yoshinori Yamaguchi