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:
Feb. 08, 1977
Filed:
Aug. 21, 1975
Applicant:
Inventor:
Masachika Yaguchi, Yokohama, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156145 ; 53 43 ; 156107 ; 156278 ; 156325 ; 156331 ; 260 7841 ; 3501 / ; 428-1 ; 526312 ; 526319 ;
Abstract
A liquid crystal cell consisting of two planar supports and a spacer interposed between them only on the margin, said supports being fixed at intervals of a limit by the spacer to form an aperture, has at least one opening through which the liquid crystal material is poured into said aperture. The openings are sealed with use of cyanoacrylates or polybutadiene type resins so that the liquid crystal cell can be prevented from lowering of the characteristics caused by incorporating of impurities into the liquid crystal layer.