Patents by Inventor Yoshio Tateishi

Yoshio Tateishi 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 bearing
    Patent number: 11585377
    Abstract: A holder has a protrusion which protrudes from a side surface at a side opposite in an axial direction with respect to a rolling element held in a pocket toward the side opposite in the axial direction. An oil supply hole which penetrates through the holder from the side surface to a surface at a side of the rolling element in the axial direction is formed in the holder. When the holder rotates, the protrusion guides oil into the oil supply hole, and the oil is introduced from the side surface of the holder to the surface on the side of the rolling element.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: February 21, 2023
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, JTEKT CORPORATION
    Inventors: Mamoru Tohyama, Yasuhiro Ohmiya, Norikazu Sato, Michiru Hirose, Takaaki Onizuka, Yoshio Tateishi, Kenichi Hasegawa, Takuya Toda, Komatsugu Nishimura, Yuya Yamamoto
  • BALL BEARING
    Publication number: 20220333645
    Abstract: A holder has a protrusion which protrudes from a side surface at a side opposite in an axial direction with respect to a rolling element held in a pocket toward the side opposite in the axial direction. An oil supply hole which penetrates through the holder from the side surface to a surface at a side of the rolling element in the axial direction is formed in the holder. When the holder rotates, the protrusion guides oil into the oil supply hole, and the oil is introduced from the side surface of the holder to the surface on the side of the rolling element.
    Type: Application
    Filed: March 1, 2022
    Publication date: October 20, 2022
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, JTEKT CORPORATION
    Inventors: Mamoru Tohyama, Yasuhiro Ohmiya, Norikazu Sato, Michiru Hirose, Takaaki Onizuka, Yoshio Tateishi, Kenichi Hasegawa, Takuya Toda, Komatsugu Nishimura, Yuya Yamamoto
  • Tapered roller bearing and final reduction gear
    Patent number: 7281855
    Abstract: A tapered roller bearing includes: an outer race including an outer raceway surface; an inner race including an inner raceway surface and a larger collar surface which is a concave curved surface; and tapered rollers provided between the outer and inner races, each of the tapered rollers including a tapered surface and a larger end surface which is a convex curved surface communicating with the tapered surface and corresponds to the larger collar surface.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: October 16, 2007
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hiroshi Ueno, Kazutoshi Toda, Hirofumi Dodoro, Shigeo Kamamoto, Hiroki Matsuyama, Liming Lou, Michiru Ueda, Kiyoshi Ogino, Tomohiro Haruta, Shinya Matsuda, Naoto Araki, Koshiro Yamakawa, Kazuhisa Kajihara, Yoshio Tateishi
  • Tapered roller bearing and final reduction gear
    Publication number: 20050069238
    Abstract: A tapered roller bearing includes: an outer race including an outer raceway surface; an inner race including an inner raceway surface and a larger collar surface which is a concave curved surface; and tapered rollers provided between the outer and inner races, each of the tapered rollers including a tapered surface and a larger end surface which is a convex curved surface communicating with the tapered surface and corresponds to the larger collar surface.
    Type: Application
    Filed: April 23, 2004
    Publication date: March 31, 2005
    Applicant: Koyo Seiko Co., Ltd.
    Inventors: Hiroshi Ueno, Kazutoshi Toda, Hirofumi Dodoro, Shigeo Kamamoto, Hiroki Matsuyama, Liming Lou, Michiru Ueda, Kiyoshi Ogino, Tomohiro Haruta, Shinya Matsuda, Naoto Araki, Koshiro Yamakawa, Kazuhisa Kajihara, Yoshio Tateishi