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:
Mar. 06, 2007
Filed:
Feb. 09, 2005
Applicants:
Naoki Hayashida, Tokyo, JP;
Toshifumi Tanaka, Tokyo, JP;
Inventors:
Naoki Hayashida, Tokyo, JP;
Toshifumi Tanaka, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A testing method for an optical information medium using an artificial fingerprint. The artificial fingerprint is made of an artificial fingerprint liquid comprising a fine-particle-form substance and a dispersion medium capable of dispersing the fine-particle-form substance.