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:
Oct. 13, 1987
Filed:
Sep. 27, 1985
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428328 ; 252 6255 ; 252 6256 ; 252 6263 ; 252 6254 ; 427128 ; 428329 ; 428403 ; 428694 ; 428900 ;
Abstract
A magnetic recording medium has a magnetic layer which is made of a magnetic material constituted by a mixture of hexagonal system ferrite magnetic particles and acicular ferromagnetic particles.
Yashiro, Tsutomu. (1987). Magnetic recording medium (U.S. Patent No. 4699840). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4699840
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile