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:
Jan. 24, 2006
Filed:
Apr. 08, 2003
Ken Kobayashi, Kanagawa, JP;
Takahiro Kamei, Kanagawa, JP;
Noriyuki Kishii, Kanagawa, JP;
Kenichi Kurihara, Kanagawa, JP;
Yutaka Iwamoto, Kanagawa, JP;
Hisanori Tsuboi, Kanagawa, JP;
Ken Kobayashi, Kanagawa, JP;
Takahiro Kamei, Kanagawa, JP;
Noriyuki Kishii, Kanagawa, JP;
Kenichi Kurihara, Kanagawa, JP;
Yutaka Iwamoto, Kanagawa, JP;
Hisanori Tsuboi, Kanagawa, JP;
Sony Corp., Tokyo, JP;
Abstract
To provide a lubricant for recording medium, which is advantageous not only in that it maintains excellent lubricity under various conditions for use and excellent lubricating effect over a long time, but also in that it can impart excellent transport properties and excellent abrasion resistance as well as excellent durability. For example, when CH—CH(CHCOOCHOH)COORf (wherein Rf represents a saturated or unsaturated partially-fluorinated-alkyl group) is used as a lubricant for magnetic recording medium, there can be obtained a magnetic recording medium having excellent transport properties and excellent abrasion resistance as well as excellent durability.