Patents by Inventor Isao Yokohari

Isao Yokohari 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).

  • Ball bushing
    Patent number: 6409387
    Abstract: In a ball bushing having a retainer for retaining a plurality of balls for rolling and an outer tube fitted on an outer face of the retainer, tapered portions inclined such that their diameters reduce as they extend outward are respectively formed at axial opposite end portions of an outer peripheral face of the outer tube, fixed portions formed of circumferential faces with uniform outer diameters are respectively provided on insides of the tapered portions, and a smaller-diameter portion with an outer diameter smaller than that of the fixed portions is formed at a tube intermediate portion positioned between the two fixed portions.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: June 25, 2002
    Assignee: SMC Corporation
    Inventor: Isao Yokohari
  • Fluid pressure cylinder
    Patent number: D556860
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: December 4, 2007
    Assignee: SMC Corporation
    Inventor: Isao Yokohari
  • Fluid pressure cylinder
    Patent number: D556861
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: December 4, 2007
    Assignee: SMC Corporation
    Inventor: Isao Yokohari
  • Fluid pressure cylinder
    Patent number: D556862
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: December 4, 2007
    Assignee: SMC Corporation
    Inventor: Isao Yokohari