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:
Oct. 08, 2024
Filed:
Jun. 15, 2020
Applicant:
Moresco Corporation, Kobe, JP;
Inventors:
Tomomi Hatta, Kobe, JP;
Tsuyoshi Shimizu, Kobe, JP;
Assignee:
Moresco Corporation, Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 147/04 (2006.01); C10M 107/38 (2006.01); G11B 5/725 (2006.01); C10N 40/18 (2006.01);
U.S. Cl.
CPC ...
C10M 147/04 (2013.01); G11B 5/7257 (2020.08); C10M 2213/06 (2013.01); C10N 2040/18 (2013.01);
Abstract
Provided are a magnetic disk and, in particular, a compound which makes it possible to realize a lubricant having excellent heat resistance and solubility in a fluorine-based solvent. A perfluoropolyether compound in accordance with an aspect of the present invention has, in hydrocarbon groups at both terminals thereof, five or six hydroxyl groups in total.