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, 1989
Filed:
Dec. 03, 1986
Applicant:
Inventors:
Nobuaki Hayashi, Saitma, JP;
Shoichi Uchino, Hachioji, JP;
Yoshifumi Tomita, Mobara, JP;
Saburo Nonogaki, Tokyo, JP;
Masahiro Nishizawa, Mobara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; H01J / ;
U.S. Cl.
CPC ...
430 28 ; 430 25 ; 430 29 ; 430144 ;
Abstract
An optical contact of a patternwise powdery coating layer is improved by permeating a substantially transparent inorganic material having a refractive index of 1.2 to 2.0 into a paternwise powdery coating layer formed on a substrate, thereby forming a mixture layer of the transparent inorganic material and the powdery coating layer between the patternwise powdery coating layer and the substrate.