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.

Date of Patent:
Mar. 11, 2008

Filed:

Mar. 08, 2005
Applicants:

Ryuji Shinohara, Kanagawa, JP;

Hideki Kaneiwa, Kanagawa, JP;

Atsushi Matsunaga, Kanagawa, JP;

Kiyoshi Morimoto, Kanagawa, JP;

Inventors:

Ryuji Shinohara, Kanagawa, JP;

Hideki Kaneiwa, Kanagawa, JP;

Atsushi Matsunaga, Kanagawa, JP;

Kiyoshi Morimoto, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/15 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electrochromic element wherein, in a colored state of the electrochromic element, a first average optical density in a first wavelength range of 450 to 470 nm, a second average optical density in a second wavelength range of 540 to 560 nm and a third average optical density in a third wavelength range of 630 to 650 nm have a fluctuation (difference of a maximum value and a minimum value of the first to third average optical densities) equal to or less than 0.5.


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