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.:

US 7449134 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2008

Filed:

Jul. 21, 2006
Applicants:

Atsushi Izumi, Ibaraki, JP;

Yuta Ochiai, Ibaraki, JP;

Shinsuke Umegaki, Kawasaki, JP;

Tomo Iwamura, Yokohama, JP;

Makoto Suzuki, Tokyo, JP;

Hidetaka Sakurai, Tokyo, JP;

Shinji Yamaguchi, Tokyo, JP;

Inventors:

Atsushi Izumi, Ibaraki, JP;

Yuta Ochiai, Ibaraki, JP;

Shinsuke Umegaki, Kawasaki, JP;

Tomo Iwamura, Yokohama, JP;

Makoto Suzuki, Tokyo, JP;

Hidetaka Sakurai, Tokyo, JP;

Shinji Yamaguchi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/00 (2006.01); B01D 9/02 (2006.01); C30B 28/04 (2006.01); C30B 29/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

Noble crystal of 4-dimethylamino-4-stilbazolium tosylate (DAST) useful as an electro-optical element. A DAST crystal having a size effective for use as an electro-optical element is provided by a twin crystal of DAST. The twin crystal of DAST can be obtained according to a seed crystallization method or a slope crystal growing method.


Find Patent Forward Citations

Izumi, Atsushi. (2008). Dast twin crystal, process for producing the same, and use thereof (U.S. Patent No. 7449134). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7449134

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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