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:
Jan. 30, 2001
Filed:
Mar. 31, 1999
Applicant:
Inventors:
Hiroki Hotaka, Yokohama, JP;
Tomoki Gunjima, Yokohama, JP;
Mitsuru Kurosawa, Yokohama, JP;
Hiromasa Sato, Yokohama, JP;
Yuzuru Tanabe, Yokohama, JP;
Assignee:
Asahi Glass Company Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/912 ; C09K 1/920 ; F21V 9/00 ; G03H 1/04 ;
U.S. Cl.
CPC ...
C09K 1/912 ; C09K 1/920 ; F21V 9/00 ; G03H 1/04 ;
Abstract
High molecular liquid crystal obtained by photopolymerizing a liquid crystal composition which comprises CH,═CHCOO—X—OC,H,—C,H,CN (X is an alkylene group) and CH,═CHCOOC,H,—C,H,CN. An optical element which is a polarized hologram element made by using the high molecular liquid crystal and an optical head having the polarized hologram element as a beam splitter.