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. 09, 2024
Filed:
Jul. 26, 2022
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Noriko Oyanagi, Minamiashigara, JP;
Wataru Kikuchi, Minamiashigara, JP;
Akio Tamura, Minamiashigara, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/78 (2006.01); G11B 5/714 (2006.01); G11B 5/706 (2006.01); G11B 5/725 (2006.01); G11B 5/702 (2006.01); G11B 5/71 (2006.01); G11B 5/733 (2006.01);
U.S. Cl.
CPC ...
G11B 5/78 (2013.01); G11B 5/7028 (2013.01); G11B 5/70678 (2013.01); G11B 5/71 (2013.01); G11B 5/714 (2013.01); G11B 5/7253 (2020.08); G11B 5/7334 (2019.05);
Abstract
The magnetic tape includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. A fluorine-containing compound is included in a portion on the non-magnetic support on a magnetic layer side, and a ratio θr of a water contact angle measured on a surface of the magnetic layer after sliding on a magnetic head to a water contact angle measured on the surface of the magnetic layer before sliding on the magnetic head is 0.70 or more.