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. 09, 1999
Filed:
Oct. 20, 1995
Applicant:
Inventors:
Takanori Kamoto, Takatsuki, JP;
Yoshinori Yamamoto, Takatsuki, JP;
Toshinobu Sueyoshi, Otokuni-gun, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka-fu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
523172 ; 524522 ; 524523 ; 524524 ; 260D / ; 106 3114 ; 106 3123 ; 523201 ;
Abstract
A fluorescent marking composition containing particles of an organic material which has a glass transition temperature of at least 30.degree. C. and an average particle size of at least 30 nm, and emitting fluorescence in a visible light range, or absorbing infrared light having a wavelength of at least 700 nm and emitting a light in an infrared wavelength range, which composition is excellent in dispersion stability, light resistance, and heat and light resistance, and provides a mark which does not bleed.