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:
Apr. 17, 2001
Filed:
Jul. 06, 1999
Applicant:
Inventors:
Tooru Udaka, Kanagawa, JP;
Hideharu Miyagaki, Chiba, JP;
Shinichiro Yamada, Kanagawa, JP;
Hiroshi Imoto, Kanagawa, JP;
Masaru Kawabata, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/153 ;
U.S. Cl.
CPC ...
G02F 1/153 ;
Abstract
An optical apparatus having counter electrodes of ITO and working electrodes formed from a conductive paste prepared by dispersing silver or carbon conductive particles in a binder or a sintered material obtained by sintering silver or carbon conductive particles. The counter electrodes can be formed into a structure free of sharp edges which can cause a concentration of electric fields.