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:
Jun. 03, 1997
Filed:
Aug. 26, 1994
Applicant:
Inventors:
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
4286 / ; 1062866 ; 1062873 ; 10628732 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428900 ;
Abstract
A zinc sulfide thin film containing oxygen or oxygen and nitrogen has a high refractive index, a high transmittance, and a high Kerr rotation angle enhancing performance. The zinc sulfide thin film is manufactured by sputtering a zinc sulfide sintered product containing oxygen in an argon gas atmosphere or a gas mixture atmosphere of argon gas and nitrogen gas.