Optical density changing element, optical element and...

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Reexamination Certificate

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C359S275000

Reexamination Certificate

active

07419314

ABSTRACT:
An optical density changing element comprising: an anode; and a cathode, wherein at least one of the anode and the cathode comprises a first compound that changes a spectral absorption spectrum of the first compound in a wavelength of 400 to 700 nm by providing an electron to or receiving an electron from the at least one of the anode and the cathode, and wherein at least one of the anode and the cathode comprises a second compound that does not change a spectral absorption spectrum of the second compound in a wavelength of 400 to 700 nm by providing an electron to or receiving an electron from the at least one of the anode and the cathode.

REFERENCES:
patent: 6067184 (2000-05-01), Bonhote et al.
patent: 6700693 (2004-03-01), Roberts et al.
patent: 7181134 (2007-02-01), Kaneiwa et al.
patent: 7213984 (2007-05-01), Kaneiwa et al.
patent: 2005/0058445 (2005-03-01), Kaneiwa et al.
patent: 2000-506629 (2000-05-01), None
patent: 2003-511837 (2003-03-01), None
patent: 2005-115333 (2005-04-01), None
patent: WO 97/35227 (1997-09-01), None
patent: WO 01/27690 (2001-04-01), None
English translation (machine) of JP 2005-115333 A Apr. 2005.
Patent Abstract of Japan for JP 2005-11532, Apr. 2005.
David Cummins, et al, “Ultrafast Electrochromic Windows Based on Redox-Chromophore Modified Nanostructured Semiconducting and Conducting Films”, J. Phys. Chem. B, vol. 104, 2000, pp. 11449-11459, Nov. 2000.

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