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:
Nov. 05, 2019
Filed:
Feb. 18, 2016
Applicants:
Nissin Kogyo Co., Ltd., Tomi, Nagano, JP;
Shinshu University, Matsumoto-shi, Nagano, JP;
Inventors:
Minoru Okamoto, Nagano, JP;
Yohei Takahashi, Nagano, JP;
Susumu Arai, Nagano, JP;
Miyoka Ueda, Hakuba-mura, JP;
Assignees:
NISSIN KOGYO CO., LTD., Tomi, JP;
SHINSHU UNIVERSITY, Matsumoto-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 65/18 (2006.01); C23C 18/52 (2006.01); C23C 28/02 (2006.01); F16J 1/01 (2006.01); F16J 9/26 (2006.01); C25D 3/56 (2006.01); C25D 5/12 (2006.01); C25D 5/44 (2006.01); C23C 18/16 (2006.01); C23C 18/32 (2006.01); F16D 121/04 (2012.01); F16D 125/04 (2012.01);
U.S. Cl.
CPC ...
F16D 65/18 (2013.01); C23C 18/1653 (2013.01); C23C 18/1662 (2013.01); C23C 18/32 (2013.01); C23C 18/52 (2013.01); C23C 28/02 (2013.01); C25D 3/562 (2013.01); C25D 5/12 (2013.01); C25D 5/44 (2013.01); F16J 1/01 (2013.01); F16J 9/26 (2013.01); F16D 2121/04 (2013.01); F16D 2125/04 (2013.01);
Abstract
A piston has a piston main body including an aluminum alloy, and a covering layer formed on the outer surface of the piston main body, and the covering layer has a first plating layer including an iron-phosphorous alloy, and a second plating layer including a nickel-phosphorous alloy formed on the first plating layer.