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. 14, 2019
Filed:
Mar. 22, 2018
Applicant:
Nidec Corporation, Kyoto, JP;
Inventors:
Takumi Shimomura, Kyoto, JP;
Masahiro Imahori, Kyoto, JP;
Shingo Suginobu, Kyoto, JP;
Katsuya Takahashi, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 17/10 (2006.01); G11B 19/20 (2006.01);
U.S. Cl.
CPC ...
G11B 19/2036 (2013.01); F16C 17/102 (2013.01); F16C 2380/26 (2013.01);
Abstract
A fluid bearing apparatus includes a stationary member and a rotating member. A bearing surface of the stationary member and a bearing surface of the rotating member are arranged opposite to each other with a minute gap therebetween. The minute gap has a fluid arranged therein. At least one of the bearing surfaces includes a first dynamic pressure groove array. The first dynamic pressure groove array includes a plurality of first dynamic pressure grooves arranged unevenly at irregular intervals in a circumferential direction.