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:
Mar. 15, 2022
Filed:
Apr. 04, 2017
Applicants:
Daido Steel Co., Ltd., Nagoya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Inventors:
Ryosuke Ohashi, Aichi, JP;
Ayumi Yamazaki, Aichi, JP;
Yushi Fujinaga, Wako, JP;
Kentaro Shimada, Wako, JP;
Ryuta Motani, Wako, JP;
Assignees:
DAIDO STEEL CO., LTD., Nagoya, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 9/30 (2006.01); C22C 38/60 (2006.01); C22C 38/50 (2006.01); C22C 38/48 (2006.01); C22C 38/46 (2006.01); C22C 38/44 (2006.01); C22C 38/42 (2006.01); C22C 38/06 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); C23C 8/32 (2006.01); C21D 1/06 (2006.01); F16C 3/06 (2006.01);
U.S. Cl.
CPC ...
C21D 9/30 (2013.01); C21D 1/06 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/60 (2013.01); C23C 8/32 (2013.01); F16C 3/06 (2013.01); F16C 2204/62 (2013.01); F16C 2204/74 (2013.01); F16C 2220/46 (2013.01); F16C 2223/16 (2013.01);
Abstract
The present invention provides a steel material which is excellent in both of the strength (particularly, fatigue strength) and the manufacturability (particularly, bending straightening properties), and thus can be used as an automobile component such as a crankshaft by being formed into a product shape, being subjected to a high strength treatment such as a nitrocarburizing treatment, and then being subjected to the bending straightening.