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:
Oct. 08, 1991
Filed:
May. 15, 1990
Applicant:
Inventors:
Kunihiko Yoneshima, Hiratsuka, JP;
Fumio Takahashi, Odawara, JP;
Assignee:
Kasei Optonix, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
2523 / ; 2523 / ; 2523 / ;
Abstract
A fluorescent composition for low velocity electron beam excitation, comprising a phosphor capable of emitting light under excitation by a high velocity electron beam and indium oxide (In.sub.2 O.sub.3) mixed or mutually adhered to each other, wherein the half value width of the strongest diffraction line in the diffraction X-ray spectrum of the indium oxide (In.sub.2 O.sub.3) is within a range of from 0.10.degree. to 0.25.degree..