Patents by Inventor Tatsuyoshi YASUDA

Tatsuyoshi YASUDA 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).

  • Continuous-generation gear-wheel grinding method
    Patent number: 10449656
    Abstract: A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction, a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center, the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, and the abrasive grains having a grain size of F120 to F180.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 22, 2019
    Assignees: TOYOTA MOTOR HOKKAIDO INC., NORITAKE CO., LIMITED, YUSHIRO CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masatoshi Ozaki, Toru Yamazaki, Kazuhiro Horimi, Tatsuyoshi Yasuda, Yoshihisa Hayakawa, Sho Nakajima
  • CONTINUOUS-GENERATION GEAR-WHEEL GRINDING METHOD
    Publication number: 20160107291
    Abstract: A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction, a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center, the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, and the abrasive grains having a grain size of F120 to F180.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 21, 2016
    Applicants: TOYOTA MOTOR HOKKAIDO INC., NORITAKE CO., LIMITED, YUSHIRO CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masatoshi OZAKI, Toru YAMAZAKI, Kazuhiro HORIMI, Tatsuyoshi YASUDA, Yoshihisa HAYAKAWA, Sho NAKAJIMA