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:
Jun. 16, 1998
Filed:
Dec. 28, 1995
Applicant:
Inventors:
Assignee:
Hitachi Maxell, Ltd., Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; B42D / ;
U.S. Cl.
CPC ...
106 3115 ; 106 3132 ; 106 3164 ; 283 88 ;
Abstract
A printed matter having substrate, and a datum printed with an infrared fluorescent which is excited by infrared light and emits light in an infrared wavelength range and a datum printed with a black colorant does not absorb light in the infrared wavelength range, or data printed with a black colorant which does not absorb light in the infrared wavelength range and carries thereon an organic material which is excited by infrared light and emits light in an infrared wavelength range, whereby an amount of data printed in a unit area of the substrate is increased.