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:
Jul. 17, 2018
Filed:
Aug. 19, 2016
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Norihito Kasada, Minami-ashigara, JP;
Masahito Oyanagi, Minami-ashigara, JP;
Toshio Tada, Minami-ashigara, JP;
Takuro Sugiyama, Minami-ashigara, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/78 (2006.01); G11B 5/70 (2006.01); G11B 5/735 (2006.01); G11B 5/842 (2006.01);
U.S. Cl.
CPC ...
G11B 5/78 (2013.01); G11B 5/70 (2013.01); G11B 5/735 (2013.01); G11B 5/842 (2013.01);
Abstract
The magnetic tape has a magnetic layer containing ferromagnetic powder and binder on the surface on one side of a nonmagnetic support and has a backcoat layer containing nonmagnetic powder and binder on the surface on the other side of the nonmagnetic support, wherein the backcoat layer is less than or equal to 0.30 μm in thickness; and the logarithmic decrement as determined by a pendulum viscoelasticity test on the surface on the backcoat layer side of the magnetic tape is less than or equal to 0.060.