Patents by Inventor Juji Harada

Juji Harada 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).

  • Rolling bearing unit for rotation support unit
    Patent number: 7967512
    Abstract: A retainer plate 7a is fitted on a smaller-diameter step portion 9a of an outer ring 5a, and a retaining ring 11 fitted on the smaller-diameter step portion 9a is engaged with retaining projections 15 formed on an inner circumferential surface of a fitting hole 12 formed through the retainer plate 7a, thereby preventing the retainer plate 7a from falling-off from the smaller-diameter step portion 9a. The structures and shapes of the various portions are so determined that working or machining can be easily effected to form these portions so as to overcome a problem encountered with the conventional structure.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: June 28, 2011
    Assignee: NSK Ltd.
    Inventors: Daisuke Himeda, Takao Katougi, Tomoharu Sugiman, Toshiharu Honda, Juji Harada, Seigou Urakami, Takashi Kato
  • ROLLING BEARING UNIT FOR ROTATION SUPPORT UNIT
    Publication number: 20090052826
    Abstract: A retainer plate 7a is fitted on a smaller-diameter step portion 9a of an outer ring 5a, and a retaining ring 11 fitted on the smaller-diameter step portion 9a is engaged with retaining; projections 15 formed on an inner circumferential surface of a fitting hole 12 formed through the retainer plate 7a, thereby preventing the retainer plate 7a from falling-off from the smaller-diameter step portion 9a. The structures and shapes of the various portions are so determined that working or machining can be easily effected to form these portions so as to overcome a problem encountered with the conventional structure.
    Type: Application
    Filed: June 23, 2008
    Publication date: February 26, 2009
    Applicant: NSK LTD.
    Inventors: Daisuke HIMEDA, Takao KATOUGI, Tomoharu SUGIMAN, Toshiharu HONDA, Juji HARADA, Seigou URAKAMI, Takashi KATO