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:
Jan. 08, 1991
Filed:
Feb. 01, 1989
Applicant:
Inventor:
Shizuo Umemura, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami Ashigara, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350377 ; 360114 ; 360135 ;
Abstract
A magneto-optical thin film comprising a substrate having thereon at least two ferromagnetic thin layers alternating with at least two dielectric thin layers to form a laminate the ferromagnetic thin layers each having a thickness of from 30 to 260 .ANG..
Umemura, Shizuo. (1991). Magneto-optical thin film (U.S. Patent No. 4983025). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4983025
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile