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:
Aug. 15, 2000
Filed:
May. 28, 1997
Applicant:
Inventors:
Ichiro Yoshida, Kawasaki, JP;
Hiroshi Iida, Kawasaki, JP;
Isamu Ito, Kawasaki, JP;
Hiroyuki Nakamura, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
427128 ; 4286 / ; 134-3 ; 134 41 ; 510165 ; 510167 ; 510268 ; 510488 ;
Abstract
A substrate, on which a base metal layer and a magnetic recording metal layer are to be deposited, is cleaned by contacting it with an aqueous solution of at least one compound selected from a carboxylic acid or L-ascorbic acid having a pH of 5.0 or less.
Yoshida, Ichiro. (2000). Method for manufacturing a recording medium having metal substrate (U.S. Patent No. 6103300). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6103300
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile