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:
May. 28, 2019
Filed:
Aug. 01, 2013
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventors:
Yosuke Tatebayashi, Tokyo, JP;
Yasuyoshi Hidaka, Tokyo, JP;
Yasuto Higashida, Tokyo, JP;
Kouji Nakaike, Tokyo, JP;
Takateru Inage, Tokyo, JP;
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 25/00 (2006.01); C23C 4/10 (2016.01); C23C 4/06 (2016.01); C23C 4/12 (2016.01); B23K 9/04 (2006.01); B23K 9/23 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/16 (2006.01); C23C 4/08 (2016.01); C23C 4/131 (2016.01); B23K 35/30 (2006.01); B23K 103/04 (2006.01); B23K 101/20 (2006.01);
U.S. Cl.
CPC ...
B21B 25/00 (2013.01); B23K 9/042 (2013.01); B23K 9/044 (2013.01); B23K 9/23 (2013.01); B23K 35/3073 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/16 (2013.01); C23C 4/06 (2013.01); C23C 4/08 (2013.01); C23C 4/10 (2013.01); C23C 4/12 (2013.01); C23C 4/131 (2016.01); B23K 2101/20 (2018.08); B23K 2103/04 (2018.08);
Abstract
A piercing plug includes a plug main body, and a sprayed coating which is formed on a surface of the plug main body and includes iron and iron oxide. A chemical composition of the sprayed coating includes, in addition to the iron and the iron oxide, by mass %, C: 0.015% to 0.6%, Si: 0.05% to 0.5%, Mn: 0.1% to 1.0%, and Cu: 0 to 0.3%.