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. 20, 2018
Filed:
Aug. 25, 2016
Applicant:
Seiko Instruments Inc., Chiba-shi, Chiba-ken, JP;
Inventors:
Akihiro Iino, Chiba, JP;
Yukihiro Nakayama, Chiba, JP;
Misato Hanaoka, Chiba, JP;
Hisaya Nakamura, Sodegaura, JP;
Hiroki Yoda, Sodegaura, JP;
Assignee:
SEIKO INSTRUMENTS INC., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 171/02 (2006.01); F16C 33/66 (2006.01); F16C 33/78 (2006.01); F16C 33/41 (2006.01);
U.S. Cl.
CPC ...
F16C 33/6633 (2013.01); C10M 169/04 (2013.01); F16C 33/6603 (2013.01); C10M 2203/024 (2013.01); C10M 2203/1006 (2013.01); C10M 2203/1025 (2013.01); C10M 2207/026 (2013.01); C10M 2207/0225 (2013.01); C10M 2207/0406 (2013.01); C10M 2207/126 (2013.01); C10M 2207/128 (2013.01); C10M 2207/289 (2013.01); C10M 2207/2835 (2013.01); C10M 2215/06 (2013.01); C10M 2215/064 (2013.01); C10M 2215/1026 (2013.01); C10M 2215/221 (2013.01); C10M 2215/223 (2013.01); C10N 2230/00 (2013.01); C10N 2230/10 (2013.01); C10N 2230/12 (2013.01); C10N 2230/68 (2013.01); C10N 2240/02 (2013.01); C10N 2240/204 (2013.01); C10N 2250/10 (2013.01); F16C 33/416 (2013.01); F16C 33/6607 (2013.01); F16C 33/785 (2013.01); F16C 2370/12 (2013.01);
Abstract
A grease for a rolling bearing of an information recording and reproducing apparatus contains a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant expressed by the General Formula (1), and a phenol-based antioxidant expressed by the General Formula (2). The base oil contains a refined mineral oil classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 240° C. or higher.