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:
Dec. 03, 2024
Filed:
Aug. 24, 2023
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Eiki Ozawa, Minamiashigara, JP;
Takashi Fujimoto, Minamiashigara, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/706 (2006.01); G11B 5/714 (2006.01); G11B 5/73 (2006.01); G11B 5/735 (2006.01); G11B 5/84 (2006.01);
U.S. Cl.
CPC ...
G11B 5/706 (2013.01); G11B 5/714 (2013.01); G11B 5/73 (2013.01); G11B 5/735 (2013.01); G11B 5/7356 (2019.05); G11B 5/84 (2013.01);
Abstract
Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ε-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method after the magnetic layer is pressed at a pressure of 70 atm is 1.0 or more and 6.5 or less, a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.