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:
Aug. 30, 2011
Filed:
Oct. 22, 2010
Applicants:
Kara Yoshida, Tokyo, JP;
Yuriko Kaida, Tokyo, JP;
Hiromichi Nagayama, Tokyo, JP;
Hiroshi Kumai, Tokyo, JP;
Inventors:
Kara Yoshida, Tokyo, JP;
Yuriko Kaida, Tokyo, JP;
Hiromichi Nagayama, Tokyo, JP;
Hiroshi Kumai, Tokyo, JP;
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/38 (2006.01); C09K 19/54 (2006.01); C09K 19/34 (2006.01); C09K 19/20 (2006.01); C09K 19/12 (2006.01); G02F 1/13 (2006.01); G11B 7/135 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a liquid crystal optical modulation element which is excellent in durability against blue laser and which can maintain the characteristics for a long period of time. A liquid crystal optical modulation element to modulate a laser beam having a wavelength of at most 500 nm, which comprises a layer of a polymer liquid crystal composition sandwiched between a pair of transparent substrates facing each other, characterized in that