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:
Aug. 11, 2026
Filed:
Aug. 04, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Xingliang He, Fremont, CA (US);
Jianming Wen, Pleasanton, CA (US);
Charles Cheng-Hsing Lee, San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
An aromatic or aromatic-like group(s) containing lubricant configured to be adsorbed by a magnetic recording media is formed from where Ar is an aromatic group, polyaromatic hydrocarbon (PAH), annulene, cycloalkane or heterocycle, m=1-10, R1 and R2 are moieties containing first and second polar groups, respectively, Ris a perfluorinated polyether, o=1-10, p=0-10, and q=1-10. The first or second polar group may independently be hydroxyl, phosphonic acid, silanol or carboxylic acid. In an embodiment, the lubricant has the formula: where Ar is a system formed from a PAH, annulene, cycloalkane or heterocycle, X, Y and Z can independently be hydroxyl, a phosphonic acid moiety, a silanol or a carboxylic acid moiety, and where Rmay be CFO(CFCF)CF— where n is 1 to 100. Synthesizing the lubricant may entail reacting parabromophenol with (Ar)(R1RR2).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile