Patents by Inventor Masaru OOSAWA

Masaru OOSAWA 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: 11511788
    Abstract: The outer column has a press-fitted portion into which the inner column is press-fitted on the inner-diameter side, and an adjacent large diameter portion arranged in a location adjacent to the press-fitted portion in the axial direction and having an inner-diameter dimension larger than an inner-diameter dimension of the press-fitted portion. The inner-circumferential surface of the press-fitted portion and the outer-circumferential surface of the inner column come in contact with each other with an interference directly or via another member at only a plurality of contact locations separated in the circumferential direction. The column-side bracket is welded to an outer-circumferential surface of the adjacent large diameter portion with at least a part of the column-side bracket located on the outer-diameter side of the press-fitted portion.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: November 29, 2022
    Assignee: NSK Ltd.
    Inventors: Suguru Sugishita, Masaru Oosawa
  • Patent number: 11447170
    Abstract: The outer column 25 has a front-side small-diameter tubular portion 37 into which the inner column 24 is press fitted. The inner-circumferential surface of the front-side small-diameter tubular portion 37 and the outer-circumferential surface of the inner column 24 come in contact with an interference fit at only a plurality of contact locations separated in the circumferential direction. At least one location in the axial direction of the column-side bracket 26 is welded to the outer-circumferential surface of the front-side small-diameter tubular portion 37 at only two weld locations that are close in the circumferential direction.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 20, 2022
    Assignee: NSK Ltd.
    Inventors: Suguru Sugishita, Masaru Oosawa
  • Patent number: 11427243
    Abstract: An outer column includes first tightened surfaces arranged in a pair of clamped portions, second tightened surfaces arranged at a portion below the first tightened surfaces and with high rigidity in the width direction, and third tightened surfaces arranged in a portion above the first tightened surfaces and with high rigidity in the width direction. A pair of support plate portions of an upper bracket each has reinforcing portions arranged in both end portions in the front-rear direction, extending in the vertical direction, and each having a free end in the upper-end portion, and a stepped portion arranged in the intermediate portion in the front-rear direction, and having a concave shape on the width direction outside, a convex shape on the width direction inside, and an inside surface in the width direction facing and capable of being brought into contact only with the third tightened surfaces.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: August 30, 2022
    Assignee: NSK Ltd.
    Inventors: Suguru Sugishita, Masaru Oosawa
  • Publication number: 20220032989
    Abstract: An outer column includes first tightened surfaces arranged in a pair of clamped portions, second tightened surfaces arranged at a portion below the first tightened surfaces and with high rigidity in the width direction, and third tightened surfaces arranged in a portion above the first tightened surfaces and with high rigidity in the width direction. A pair of support plate portions of an upper bracket each has reinforcing portions arranged in both end portions in the front-rear direction, extending in the vertical direction, and each having a free end in the upper-end portion, and a stepped portion arranged in the intermediate portion in the front-rear direction, and having a concave shape on the width direction outside, a convex shape on the width direction inside, and an inside surface in the width direction facing and capable of being brought into contact only with the third tightened surfaces.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 3, 2022
    Inventors: Suguru SUGISHITA, Masaru OOSAWA
  • Publication number: 20210387664
    Abstract: The outer column 25 has a front-side small-diameter tubular portion 37 into which the inner column 24 is press fitted. The inner-circumferential surface of the front-side small-diameter tubular portion 37 and the outer-circumferential surface of the inner column 24 come in contact with an interference fit at only a plurality of contact locations separated in the circumferential direction. At least one location in the axial direction of the column-side bracket 26 is welded to the outer-circumferential surface of the front-side small-diameter tubular portion 37 at only two weld locations that are close in the circumferential direction.
    Type: Application
    Filed: October 18, 2019
    Publication date: December 16, 2021
    Inventors: Suguru SUGISHITA, Masaru OOSAWA
  • Publication number: 20210362769
    Abstract: The outer column has a press-fitted portion into which the inner column is press-fitted on the inner-diameter side, and an adjacent large diameter portion arranged in a location adjacent to the press-fitted portion in the axial direction and having an inner-diameter dimension larger than an inner-diameter dimension of the press-fitted portion. The inner-circumferential surface of the press-fitted portion and the outer-circumferential surface of the inner column come in contact with each other with an interference directly or via another member at only a plurality of contact locations separated in the circumferential direction. The column-side bracket is welded to an outer-circumferential surface of the adjacent large diameter portion with at least a part of the column-side bracket located on the outer-diameter side of the press-fitted portion.
    Type: Application
    Filed: October 18, 2019
    Publication date: November 25, 2021
    Inventors: Suguru SUGISHITA, Masaru OOSAWA