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:
Feb. 20, 2007
Filed:
Mar. 07, 2005
Hideki Kaneiwa, Kanagawa, JP;
Ryuji Shinohara, Kanagawa, JP;
Atsushi Matsunaga, Kanagawa, JP;
Kiyoshi Morimoto, Kanagawa, JP;
Hideki Kaneiwa, Kanagawa, JP;
Ryuji Shinohara, Kanagawa, JP;
Atsushi Matsunaga, Kanagawa, JP;
Kiyoshi Morimoto, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An optical element comprises: an electromotive force-generating element that generates an electromotive force in response to electromagnetic wave; and an optical density-changing element that changes its optical density according to the electromotive force, the optical density-changing element comprising: at least one of metal sulfide and metal nitride; and a material that causes a change of the optical density and adsorbs to said at least one of metal sulfide and metal nitride.