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:
May. 08, 1990
Filed:
Mar. 27, 1989
Applicant:
Inventors:
Nobuyuki Hosoi, Kawasaki, JP;
Shigeru Hashimoto, Yokohama, JP;
Hiroshi Yoshida, Kawasaki, JP;
Yukio Watanabe, Machida, JP;
Yasuo Mukai, Yokohama, JP;
Michiko Yamamoto, Yamato, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428694 ; 427 48 ; 427128 ; 427299 ; 428900 ;
Abstract
A process for preparing a magnetic recording medium by coating a magnetic coating material on a non-magnetic support and then drying the above magnetic coating material, which comprises imparting a magnetic field to said magnetic coating material with a magnet which rotates with the rotational surface at an angle of 5.degree. to 30.degree. relative to the surface of said support prior to drying of said magnetic coating material on said support.