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. 10, 2004
Filed:
May. 16, 2001
Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
Applicant:
Inventors:
Toshio Oshima, Osaka, JP;
Yukinori Yamada, Toride, JP;
Shoji Saibara, Toride, JP;
Takanori Kamoto, Takatsuki, JP;
Tomio Nabeshima, Suita, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 3/100 ;
U.S. Cl.
CPC ...
B41J 3/100 ;
Abstract
An inked ribbon containing a tape-like carrier deposited with a fluorescent composition that contains a fluorescent substance containing at least one of Nd and Yb as an optical active element and, other than this optical active element, at least one oxide of one of Mo and W and an alkaline earth metal, which fluorescent substance is dispersed and retained in an organic binder, wherein the organic binder is a mixture of wax and resin, and wherein the fluorescent substance has an average particle size of not more than 1 micron.