Patents by Inventor Koshiro Yamakawa

Koshiro Yamakawa 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).

  • Anti-warping design method for resin molded article, recording medium, and anti-warping design device for resin molded article
    Patent number: 11651124
    Abstract: An anti-warping design method for designing a resin molded article on a programmed computer includes dividing the molded article into a plurality of small elements, calculating sensitivity values for at least part of the elements with respect to warpage of the molded article, and displaying a distribution of the sensitivity values.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 16, 2023
    Assignee: TORAY ENGINEERING CO., LTD.
    Inventors: Ryo Nakano, Koshiro Yamakawa, Akira Hyakusai, Shun Igarashi
  • ANTI-WARPING DESIGN METHOD FOR RESIN MOLDED ARTICLE, RECORDING MEDIUM, AND ANTI-WARPING DESIGN DEVICE FOR RESIN MOLDED ARTICLE
    Publication number: 20190197209
    Abstract: An anti-warping design method for designing a resin molded article on a programmed computer includes dividing the molded article into a plurality of small elements, calculating sensitivity values for at least part of the elements with respect to warpage of the molded article, and displaying a distribution of the sensitivity values.
    Type: Application
    Filed: March 5, 2019
    Publication date: June 27, 2019
    Inventors: Ryo NAKANO, Koshiro YAMAKAWA, Akira HYAKUSAI, Shun IGARASHI
  • 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