Patents by Inventor Fusasuke Goto

Fusasuke Goto 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).

  • Publication number: 20020051595
    Abstract: In a rolling bearing structured such that a plurality of rolling elements are respectively held between inner and outer rings by a retainer, grease is sealed in by a seal, a rotary body with the outer ring fitted therewith and a shaft with the inner ring fitted therewith can be connected together by a clutch mechanism and, when the rotary body and shaft are connected together by the clutch mechanism, the rolling bearing can be used on receiving a rotation load while the relative rotation between the inner and outer rings is zero, an initial radial clearance between the inner and outer rings is set such that a bearing effective clearance when the present rolling bearing is incorporated into between the rotary body and shaft can provide a positive value.
    Type: Application
    Filed: August 9, 2001
    Publication date: May 2, 2002
    Applicant: NSK LTD.
    Inventors: Fusasuke Goto, Hiroshi Ishiguro, Naoki Fukuda, Toshihisa Ohata
  • Patent number: 5385412
    Abstract: A rolling bearing is composed of an outer race having an inner-race raceway on an outer peripheral wall thereof, an outer race having an outer-race raceway on an inner peripheral wall thereof, a plurality of rolling elements interposed for rotation between the outer-race raceway and the inner race, and a lubricant composition filled in a space, which is defined between the inner-race raceway and the outer-race raceway, at a position where the plurality of rolling elements are disposed. The rolling bearing features: (a) at least one of the inner-race and outer-race raceways is made of steel having an oxygen content not higher than 6 ppm; (b) at least a raceway surface of said at least one raceway has been hardened by heat treatment; (c) the lubricant composition comprises as a base oil a synthetic lubricant having a kinematic viscosity of 60-160 cSt at 40.degree. C.; and (d) the lubricant composition further comprises 18-28 wt. % of a thickener which comprises a polyurea compound.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: January 31, 1995
    Assignee: NSK Ltd.
    Inventors: Takayuki Yatabe, Fusasuke Goto, Norihiro Aoki, Yoichi Imamura
  • Patent number: 5282689
    Abstract: A rolling bearing is composed of an outer race, an inner race and rolling elements interposed between the outer race and the inner race. A lubricant composition comprising a polyether lubricant as a base oil is filled in the bearing. Preferably, the polyether lubricant has a kinematic viscosity 90-160 cSt at 40.degree. C.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: February 1, 1994
    Assignee: NSK Ltd.
    Inventors: Yoichi Imamura, Fusasuke Goto, Norihiro Aoki