Patents by Inventor Takao Katougi

Takao Katougi 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).

  • Patent number: 8424209
    Abstract: There is provided an assembling method of a bearing unit which has a bearing having an outer ring and a retainer plate having a retainer hole for holding the outer ring. The assembling method has pressing a plurality of portions in a circumferential direction of a circumferential edge of an inner circumferential portion of the retainer hole of the retainer plate in an axial direction so as to form engagement pawls and moving the engagement pawls of the retainer plate from one axial end of the outer ring to a engagement groove formed on an outer circumferential surface of the outer ring so as to engage the engagement pawls of the retainer plate with the engagement groove of outer ring.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: April 23, 2013
    Assignee: NSK Ltd.
    Inventors: Takao Katougi, Tomoharu Sugiman
  • Publication number: 20120079721
    Abstract: There is provided an assembling method of a bearing unit which has a bearing having an outer ring and a retainer plate having a retainer hole for holding the outer ring. The assembling method has pressing a plurality of portions in a circumferential direction of a circumferential edge of an inner circumferential portion of the retainer hole of the retainer plate in an axial direction so as to form engagement pawls and moving the engagement pawls of the retainer plate from one axial end of the outer ring to a engagement groove formed on an outer circumferential surface of the outer ring so as to engage the engagement pawls of the retainer plate with the engagement groove of outer ring.
    Type: Application
    Filed: December 7, 2011
    Publication date: April 5, 2012
    Applicant: NSK Ltd.
    Inventors: Takao KATOUGI, Tomoharu SUGIMAN
  • Patent number: 8091240
    Abstract: There is provided an assembling method of a bearing unit which has a bearing having an outer ring and a retainer plate having a retainer hole for holding the outer ring. The assembling method has pressing a plurality of portions in a circumferential direction of a circumferential edge of an inner circumferential portion of the retainer hole of the retainer plate in an axial direction so as to form engagement pawls and moving the engagement pawls of the retainer plate from one axial end of the outer ring to a engagement groove formed on an outer circumferential surface of the outer ring so as to engage the engagement pawls of the retainer plate with the engagement groove of outer ring.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: January 10, 2012
    Assignee: NSK Ltd.
    Inventors: Takao Katougi, Tomoharu Sugiman
  • Patent number: 8052331
    Abstract: A rolling bearing fixing device includes at least one bearing having mutually rotatable inner and outer rings, a housing having at least one fitting hole into which the bearing is fitted and a bolt insertion hole, a pair of fixing plates having at least one large-diameter hole and a bolt insertion hole; and a bolt inserted from one axial end into the bolt insertion hole of one fixing plate, the bolt insertion hole of the housing, and the bolt insertion hole of the other fixing plate, and connects the housing with the pair of fixing plates. Both axial end parts of the outer ring are held by the pair of fixing plates in the axial direction, the inner ring is positioned further inwardly of the large-diameter hole of the fixing plates in the radial direction and the inner ring is rotatable with respect to the fixing plates.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: November 8, 2011
    Assignee: NSK Ltd.
    Inventors: Takao Katougi, Katsuhiro Ikezawa, Seigou Urakami, Daisuke Himeda, Tomoharu Sugiman
  • 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
  • Publication number: 20090056135
    Abstract: There is provided an assembling method of a bearing unit which has a bearing having an outer ring and a retainer plate having a retainer hole for holding the outer ring. The assembling method has pressing a plurality of portions in a circumferential direction of a circumferential edge of an inner circumferential portion of the retainer hole of the retainer plate in an axial direction so as to form engagement pawls and moving the engagement pawls of the retainer plate from one axial end of the outer ring to a engagement groove formed on an outer circumferential surface of the outer ring so as to engage the engagement pawls of the retainer plate with the engagement groove of outer ring.
    Type: Application
    Filed: July 3, 2008
    Publication date: March 5, 2009
    Applicant: NSK LTD.
    Inventors: Takao KATOUGI, Tomoharu SUGIMAN
  • 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
  • Publication number: 20090001245
    Abstract: A rolling bearing fixing device includes at least one bearing having mutually rotatable inner and outer rings, a housing having at least one fitting hole into which the bearing is fitted and a bolt insertion hole, a pair of fixing plates having at least one large-diameter hole and a bolt insertion hole; and a bolt inserted from one axial end into the bolt insertion hole of one fixing plate, the bolt insertion hole of the housing, and the bolt insertion hole of the other fixing plate, and connects the housing with the pair of fixing plates. Both axial end parts of the outer ring are held by the pair of fixing plates in the axial direction, the inner ring is positioned further inwardly of the large-diameter hole of the fixing plates in the radial direction and the inner ring is rotatable with respect to the fixing plates.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Applicant: NSK Ltd.
    Inventors: Takao KATOUGI, Katsuhiro IKEZAWA, Seigou URAKAMI, Daisuke HIMEDA, Tomoharu SUGIMAN