Patents by Inventor Toshihisa Sakamoto

Toshihisa Sakamoto 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).

  • Rotation-linear motion conversion apparatus and steering apparatus
    Patent number: 10183690
    Abstract: This rotation-linear motion conversion apparatus (10) includes: a pinion shaft (20) in which a pinion gear (22) is formed; a rack bar (30) in which a rack gear (32) that engages with the pinion gear (22) and a support surface (31) along a longitudinal direction are formed; and a support part (40) that supports the rack bar (30) movably along the support surface (31). The support part (40) prevents a movement of the rack bar (30) in a direction X perpendicular to a surface (30a) in which the rack gear (32) is formed.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: January 22, 2019
    Assignee: THK CO., LTD.
    Inventors: Toshiro Minami, Yuji Tachikake, Toshihisa Sakamoto, Kazuhiko Akiyama
  • Rotation-linear motion conversion apparatus and steering apparatus
    Patent number: 10053136
    Abstract: A rotation-linear motion conversion apparatus (10) includes: a rack bar (30) in which a rack gear (32) is formed; a housing (40) that surrounds the rack bar (30); a pinion shaft (20) including a pinion gear (22) that engages with the rack gear (32) and that is inserted inside the housing (40); and a support part (50) that is provided on an opposed surface (41s1), which is opposed to the rack gear (32), of the housing (40) and that supports the rack bar (30) movably in a longitudinal direction of the rack bar (30).
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: August 21, 2018
    Assignee: THK CO., LTD.
    Inventors: Toshihisa Sakamoto, Kazuhiko Akiyama, Toshiro Minami
  • ROTATION-LINEAR MOTION CONVERSION APPARATUS AND STEERING APPARATUS
    Publication number: 20170320514
    Abstract: A rotation-linear motion conversion apparatus (10) includes: a rack bar (30) in which a rack gear (32) is formed; a housing (40) that surrounds the rack bar (30); a pinion shaft (20) including a pinion gear (22) that engages with the rack gear (32) and that is inserted inside the housing (40); and a support part (50) that is provided on an opposed surface (41s1), which is opposed to the rack gear (32), of the housing (40) and that supports the rack bar (30) movably in a longitudinal direction of the rack bar (30).
    Type: Application
    Filed: November 19, 2015
    Publication date: November 9, 2017
    Applicant: THK CO., LTD.
    Inventors: Toshihisa Sakamoto, Kazuhiko Akiyama, Toshiro Minami
  • ROTATION-LINEAR MOTION CONVERSION APPARATUS AND STEERING APPARATUS
    Publication number: 20160167697
    Abstract: This rotation-linear motion conversion apparatus (10) includes: a pinion shaft (20) in which a pinion gear (22) is formed; a rack bar (30) in which a rack gear (32) that engages with the pinion gear (22) and a support surface (31) along a longitudinal direction are formed; and a support part (40) that supports the rack bar (30) movably along the support surface (31). The support part (40) prevents a movement of the rack bar (30) in a direction X perpendicular to a surface (30a) in which the rack gear (32) is formed.
    Type: Application
    Filed: July 22, 2014
    Publication date: June 16, 2016
    Applicant: THK CO., LTD.
    Inventors: Toshiro Minami, Yuji Tachikake, Toshihisa Sakamoto, Kazuhiko Akiyama
  • Tandem type rod end
    Patent number: D561575
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 12, 2008
    Assignee: THK Co., Ltd
    Inventors: Tetsuhiro Nishide, Toshihisa Sakamoto
  • Tandem type rod end
    Patent number: D561576
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 12, 2008
    Assignee: THK Co., Ltd.
    Inventors: Tetsuhiro Nishide, Toshihisa Sakamoto
  • Full boot for tandem type rod end
    Patent number: D591588
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: May 5, 2009
    Assignee: THK Co., Ltd.
    Inventors: Tetsuhiro Nishide, Toshihisa Sakamoto