Title:
A manufacturing method of hardening steel materials
Document Type and Number:
Japanese Patent JP6210171
Kind Code:
B2
Inventors:
Naoaki Shimada
Yoshiaki Nakazawa
Yoshiaki Nakazawa
Application Number:
JP2017028374A
Publication Date:
October 11, 2017
Filing Date:
February 17, 2017
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B21D7/16; B21D7/00; C21D1/18; C21D1/70; C21D1/76; C21D9/08
Domestic Patent References:
| JP2012132098A | ||||
| JP2059103A | ||||
| JP2014100732A | ||||
| JP9239449A |
Foreign References:
| WO2006093006A1 | ||||
| WO2010050460A1 | ||||
| WO2011007810A1 | ||||
| WO2010084898A1 |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office