Patents by Inventor Thoru Isono

Thoru Isono 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 for producing damper pulley
    Patent number: 5465485
    Abstract: A method for producing a damper pulley having a boss portion to be press-fitted onto a rotary shaft, an annular main portion extending from the boss portion, a flange portion formed along an outer periphery of the main portion, a ring-shaped damper-mass member located outside the flange portion and a rubber body interposed between the flange portion and the damper-mass member includes the steps of integrally forming the boss portion, the main portion and the flange portion of a metallic plate such that the main portion has a curved section, and has a radial length greater than a straight line distance between the boss portion and the flange portion, placing the rubber body between the flange portion and the damper-mass member, and enlarging the diameter of the flange portion to elongate the main portion having a curved section, thereby the enlarged flange portion presses the rubber body against the damper-mass member.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: November 14, 1995
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Kazutoshi Miyake, Masato Ueno, Satomi Watanabe, Nobuaki Funahashi, Tomohito Asai, Thoru Isono