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:
Dec. 08, 1998
Filed:
Mar. 11, 1997
Applicant:
Inventors:
Assignee:
Futaba Denshi Kogyo K.K., Mobara, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
430-7 ; 430312 ; 430321 ; 313112 ; 313496 ;
Abstract
A thin-film filter which is uniform in thickness and has a smooth surface is provided. A filter forming liquid containing a ultrafine pigment, a photosensitive organic Si compound and a high-boiling polar solvent is coated on a glass substrate to form a filter film, which is subject to light exposure through a mask and then development, to thereby carry out patterning, followed by calcination of the glass substrate, leading to manufacturing of a color filter.