Patents by Inventor Chitoshi Ogata

Chitoshi Ogata 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).

  • Member integrated with sleeve, and method for manufacturing same
    Patent number: 8863614
    Abstract: The invention is characterized in that, when protrusion parts 30 are raised from a substrate W and the protrusion parts 30 are formed into spacers 12 with a predetermined outer diameter D and height H, the protrusion parts 30 are temporarily formed so as to have a diameter larger than a predetermined outer diameter D and a height larger than a predetermined height H, and the protrusion parts 30 are crushed, and leading end portions 30b of the protrusion parts 30 are protruded in a radially outward direction so as to have a double-layered structure, and then through-holes 35 are opened at the leading end portions 30b. Accordingly, the leading end portions 30b have strength due to a double-layered structure, and side portions 30a also have high strength due to contraction by pressing, whereby the sleeve-integrated member includes the entirely high-strength spacers 12.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: October 21, 2014
    Assignee: Yorozu Corporation
    Inventors: Masaharu Ishizuki, Hiroshi Kimura, Chitoshi Ogata, Akira Ishiyama
  • SLEEVE-INTEGRATED MEMBER AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20120325990
    Abstract: The invention is characterized in that, when protrusion parts 30 are raised from a substrate W and the protrusion parts 30 are formed into spacers 12 with a predetermined outer diameter D and height H, the protrusion parts 30 are temporarily formed so as to have a diameter larger than a predetermined outer diameter D and a height larger than a predetermined height H, and the protrusion parts 30 are crushed, and leading end portions 30b of the protrusion parts 30 are protruded in a radially outward direction so as to have a double-layered structure, and then through-holes 35 are opened at the leading end portions 30b. Accordingly, the leading end portions 30b have strength due to a double-layered structure, and side portions 30a also have high strength due to contraction by pressing, whereby the sleeve-integrated member includes the entirely high-strength spacers 12.
    Type: Application
    Filed: January 26, 2011
    Publication date: December 27, 2012
    Applicant: Yorozu Corporation
    Inventors: Masaharu Ishizuki, Hiroshi Kimura, Chitoshi Ogata, Akira Ishiyama