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. 24, 2015
Filed:
Jul. 20, 2011
Applicants:
Jean-francois Letard, Canejan, FR;
Eric Freysz, Pessac, FR;
Inventors:
Jean-Francois Letard, Canejan, FR;
Eric Freysz, Pessac, FR;
Assignee:
Centre National de la Recherche Scientifique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); C07F 15/02 (2006.01); G11B 7/248 (2006.01); B41M 5/26 (2006.01); G11B 7/2492 (2013.01); H01L 29/66 (2006.01); C07D 249/08 (2006.01);
U.S. Cl.
CPC ...
H01L 29/66984 (2013.01); B41M 5/262 (2013.01); B41M 5/267 (2013.01); G11B 7/2492 (2013.01); B41M 5/26 (2013.01); C07D 249/08 (2013.01);
Abstract
A method is provided for the thermal photoswitching of spin-transition compounds from the low-spin state to the high-spin state, including at least one step of exposing the material to a non-polarized laser beam which is at room temperature, and the wavelength of which is in the infrared range and the power of which is 1 mW·cmto 1 W·cm. The method may be used for the temporary or permanent marking of materials including particles of at least one spin-transition compound including an iron(II) and triazole ligand compound.