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. 17, 2006
Filed:
Sep. 22, 2004
Yasuhiro Yagi, Tsukuba, JP;
Kenzou Susa, Tsukuba, JP;
Yasuhiro Yagi, Tsukuba, JP;
Kenzou Susa, Tsukuba, JP;
Hitachi Chemical Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a fluorescent substance represented by the following general formula: (AB)SiO, wherein A is at least one member selected from the group consisting of Gd, Y, Lu and La, B is at least one member selected from the group consisting of rare earth elements other than A and x is a numerical value specified by the formula: 0<x≦0.2 and which can emit light rays having a wavelength falling within the range of ultraviolet, visible and infrared regions in response to, for instance, optical stimuli, electron beam stimuli, electric field stimuli, stress stimuli and radiation stimuli; a fluorescent composition comprising such a fluorescent substance dispersed in a silica glass matrix; and a scintillator obtained using the foregoing substance or composition. These fluorescent substance, fluorescent composition, scintillator material and fluorescent material have high luminous outputs and are excellent in the processability.