Patents by Inventor Toshiharu Takamura

Toshiharu Takamura 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).

  • Sealing device for a rolling bearing
    Patent number: 6241396
    Abstract: A sealing device for a roll bearing which includes an outer ring, an inner ring, a rolling element rotatably interposed between the outer and inner rings, and a retainer, comprises a seal holder having a seal holder portion and a seal body attached to the seal holder portion. A portion of the retainer is received in a sealing space defined by the seal holder portion while the portion of the retainer is being disposed outside a range of interference with the seal holder portion. The sealing device further comprises conical surfaces 10 and 19 which are provided as fitting surfaces of a seal holder portion 9a and a seal body 17 fit to the seal holder portion 9a. Accordingly, a space 23 into which one end of a retainer of the bearing is receivable can be formed, and the inside diameter d of the seal holder portion 9a can be reduced.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 5, 2001
    Assignee: NSK Ltd.
    Inventors: Yuji Shimomura, Toshiharu Takamura, Hidenobu Magami, Tomoyuki Aizawa, Sadayuki Tanaka