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. 22, 2005
Filed:
Sep. 09, 2003
Applicants:
Taeko I. Urano, Kawasaki, JP;
Kenji Sano, Tokyo, JP;
Hideo Nagai, Nagareyama, JP;
Tomokazu Domon, Yokosuka, JP;
Hironori Fukuda, Kawasaki, JP;
Inventors:
Taeko I. Urano, Kawasaki, JP;
Kenji Sano, Tokyo, JP;
Hideo Nagai, Nagareyama, JP;
Tomokazu Domon, Yokosuka, JP;
Hironori Fukuda, Kawasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K007/10 ;
U.S. Cl.
CPC ...
Abstract
An article including a substrate and an invisible symbol on the substrate is disclosed. The invisible symbol is formed by a compound which includes a cyano group and has an infrared absorption wavelength apart from that of the substrate when heated.