Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2003-02-10
2004-11-09
Dang, Hung Xuan (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S273000, C546S257000, C544S347000, C252S583000
Reexamination Certificate
active
06816298
ABSTRACT:
BACKGROUND OF THE INVENTION
A method of forming a chromogenic layer for an electrochromic device such as smart windows is known from Japanese Laid-Open Patent Publication No. 63-18336 disclosing a method in which a film of chromogenic layer is formed by vacuum-evaporating an electrochromic active substance such as tungsten oxide (WO
3
) over a transparent electrically conductive film.
However, this method requires techniques carried out under vacuum conditions, which lead to elevated production costs and the requirements of a large-sized vacuum apparatus for the production of an electrochromic device with a large-surface area. Furthermore, there is a problem that the use of tungsten oxide results in an electrochromic device which can exhibit blue color only.
BRIEF SUMMARY OF THE INVENTION
In view of the foregoing, the object of the present invention is to provide an electrochromic device which can be produced with inexpensive chromogenic materials by a simple method and can be changed in color tone.
The present invention relates to electrochromic devices which have an extensive use varied from transmission-type devices such as smart windows, reflective-type devices such as antiglare mirrors for automobiles, reflective-type devices such as decorative mirrors to displays.
REFERENCES:
patent: 4210390 (1980-07-01), Yaguchi
patent: 6154306 (2000-11-01), Varaprasad et al.
patent: 2003/0087107 (2003-05-01), Varaprasad et al.
patent: 54-151581 (1979-11-01), None
Paul D. Beer, “Novel Mono-and Di-ferrocenyl Bipyridyl Ligands: Synthesis, Electrochemistry, and Electropolymerisation Studies of their Ruthenium (II) Complexes”,Journal of Chemistry Society Dalton Transactionsvol. 11, pp 3283-3288.
Iaki Keizo
Imafuku Hiroshi
Kobayashi Masa-aki
Kubo Takaya
Minami Masaki
Akin Gump Strauss Hauer & Feld L.L.P.
Dang Hung Xuan
Nippon Mitsubishi Oil Corporation
Tra Tuyen
LandOfFree
Electrochromic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrochromic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochromic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3286133