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:
Jan. 05, 2021
Filed:
May. 26, 2016
Jtekt Corporation, Osaka, JP;
Kazutaka Matsukawa, Kariya, JP;
Hiroyuki Ando, Takahama, JP;
Yasunari Saito, Chiryu, JP;
Hideyuki Saito, Kariya, JP;
Kazuhiro Fukushima, Okazaki, JP;
Tomoyuki Nanba, Aisai, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
In a manufacturing method for a sliding member, a nitrogen diffusion layer, a nitrogen compound layer, and an oxidation layer are formed by executing a first step of cooling a workpiece formed of a steel material after heating the workpiece in an atmosphere containing ammonia at 570 to 660° C., a second step of performing, subsequently to the first step, tempering while pressurizing a front surface side of the workpiece, and a third step of performing, subsequently to the second step, steam treatment of heating the workpiece in a steam atmosphere.