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. 16, 1992
Filed:
Oct. 17, 1990
Applicant:
Inventors:
Kazuhiro Johten, Hirakata, JP;
Tsuyoshi Uemura, Kadoma, JP;
Hiroyuki Onishi, Ikeda, JP;
Hideaki Mochizuki, Osaka, JP;
Hiroshi Satani, Neyagawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
2522995 ; 25229901 ;
Abstract
This invention prevents a time-course deterioration of characteristics of a liquid crystal panel and dramatically increases the life of the panel by using a ferroelectric liquid crystal composition in which a proper amount of aliphatic amine or epoxy compound is added to a ferroelectric liquid crystal material.
Johten, Kazuhiro. (1992). Ferroelectric liquid crystal composition and liquid crystal display (U.S. Patent No. 5122296). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5122296
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile