The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Jun. 10, 2015
Applicant:
Smc Corporation, Chiyoda-ku, JP;
Inventors:
Toru Nakayama, Soka, JP;
Toru Sugiyama, Abiko, JP;
Ryuichi Masui, Bando, JP;
Hiroyuki Okuhira, Moriya, JP;
Assignee:
SMC CORPORATION, Chiyoda-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 14/06 (2006.01); C23C 16/27 (2006.01); F16H 25/20 (2006.01); F16H 25/24 (2006.01); F16H 57/04 (2010.01); C23C 28/04 (2006.01);
U.S. Cl.
CPC ...
F16H 25/24 (2013.01); C23C 14/0611 (2013.01); C23C 16/27 (2013.01); C23C 28/044 (2013.01); F16H 25/20 (2013.01); F16H 57/0497 (2013.01); F16H 2025/204 (2013.01); F16H 2025/2075 (2013.01); F16H 2025/249 (2013.01);
Abstract
An electric actuator such that a nut threadedly engaged with a sliding screw shaft is displaced along an axial direction under the operation of a motor, the sliding screw shaft being made of a light metal or light metal alloy. A diamond-like carbon film is formed on at least either a portion of screw threads of the nut that is located at least within three threads from a starting end in the axial direction, or screw threads of the sliding screw shaft.