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:
Dec. 03, 2019
Filed:
Aug. 25, 2016
Applicant:
National Institute for Materials Science, Ibaraki, JP;
Inventors:
Masahiro Goto, Ibaraki, JP;
Michiko Sasaki, Ibaraki, JP;
Akira Kasahara, Ibaraki, JP;
Masahiro Tosa, Ibaraki, JP;
Assignee:
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/34 (2006.01); C23C 14/08 (2006.01); C23C 14/50 (2006.01); C23C 14/35 (2006.01);
U.S. Cl.
CPC ...
F16C 33/34 (2013.01); C23C 14/086 (2013.01); C23C 14/505 (2013.01); C23C 14/354 (2013.01); F16C 2223/30 (2013.01);
Abstract
ZnO sputtering is performed while a rolling body is housed in a basket made of a metal wire and is rotated. By setting a ratio of a mesh size of the basket to a diameter of the rolling body in a range of 40 to 95%, fine and uniform ZnO coating can be formed on a surface of the rolling body. By using the rolling body with ZnO coating prepared in this manner in a bearing which is rotated at high speed in a high-load state, a friction coefficient can significantly be lowered in comparison with a case of no coating.