Patents by Inventor Masahiro Harunaga

Masahiro Harunaga 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).

  • Resin cage and rolling bearing
    Patent number: 8303192
    Abstract: A resin snap cage 4 comprises a resin-made circular main part 10, a plurality of pockets 11 provided in one axial end face of the circular main part 10, and a circular reinforcing member 12 installed concentrically at the other end face in an axial direction of the circular main part 10. While this reinforcing member 12 is circular along the circular main part 10, a sectional shape in a plane parallel to an axial direction is a rectangle. The reinforcing member 12 is embedded in a recessed portion formed at the other end face in an axial direction of the circular main part 10 to be integrated, an outside diameter surface 12a, an inside diameter surface 12b, and a pocket-side surface 12c of the reinforcing member 12 are covered with the circular main part 10, and a surface 12d thereof opposite to the pocket side is exposed.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: November 6, 2012
    Assignee: NSK Ltd.
    Inventors: Takiyoshi Yamada, Takahiko Uchiyama, Kenichi Iso, Junji Ono, Masahiro Harunaga, Kinji Yukawa, Makoto Yasuda, Jianjun Zhan, Nariaki Aihara
  • Resin Cage and Rolling Bearing
    Publication number: 20090220181
    Abstract: A resin snap cage 4 comprises a resin-made circular main part 10, a plurality of pockets 11 provided in one axial end face of the circular main part 10, and a circular reinforcing member 12 installed concentrically at the other end face in an axial direction of the circular main part 10. While this reinforcing member 12 is circular along the circular main part 10, a sectional shape in a plane parallel to an axial direction is a rectangle. The reinforcing member 12 is embedded in a recessed portion formed at the other end face in an axial direction of the circular main part 10 to be integrated, an outside diameter surface 12a, an inside diameter surface 12b, and a pocket-side surface 12c of the reinforcing member 12 are covered with the circular main part 10, and a surface 12d thereof opposite to the pocket side is exposed.
    Type: Application
    Filed: November 20, 2006
    Publication date: September 3, 2009
    Applicant: NSK LTD.
    Inventors: Takiyoshi Yamada, Takahiko Uchiyama, Kenichi Iso, Junji Ono, Masahiro Harunaga, Kinji Yukawa, Makoto Yasuda, Jianjun Zhan, Nariaki Aihara