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:
Mar. 27, 2018
Filed:
Jan. 14, 2013
Applicant:
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Inventor:
Shinji Uchida, Matsumoto, JP;
Assignee:
FUJI ELECTRIC CO., LTD., Kawasaki-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/34 (2006.01); G11B 5/84 (2006.01); G11B 5/65 (2006.01); G11B 5/851 (2006.01); C23C 14/56 (2006.01);
U.S. Cl.
CPC ...
G11B 5/84 (2013.01); C23C 14/34 (2013.01); C23C 14/3414 (2013.01); C23C 14/3464 (2013.01); C23C 14/568 (2013.01); G11B 5/65 (2013.01); G11B 5/851 (2013.01);
Abstract
A method for manufacturing a magnetic recording medium includes reducing and eliminating impurity gas present in a chamber. A magnetic recording layer is formed and an active material layer is also formed immediately below or immediately above the magnetic recording layer in respective chambers. The active material layer is formed in the same chamber or with a gate opened between the magnetic recording layer chamber and the active material layer chamber.