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:
Jul. 05, 2022
Filed:
Aug. 22, 2019
Denka Company Limited, Tokyo, JP;
Keita Kobayashi, Omuta, JP;
Shunsuke Mitani, Omuta, JP;
Ryousuke Kondo, Omuta, JP;
Kazuya Sugita, Omuta, JP;
Takuya Matsufuji, Omuta, JP;
Akihisa Kajiyama, Omuta, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
A β-type sialon phosphor represented by the following expression 1, in which D50 is 10 μm or less, and values of D10, D50, and D90 satisfy a relationship of the following expression 2 with respect to D10, D50, and D90 (each unit is [μm]) on a volume frequency basis as measured according to a laser diffraction/scattering method. Expression 1: SiAlON:Eu(wherein 0<a≤3; 0<b≤3; 0<x≤0.1), expression 2: (D90−D10)/D50<1.6 (wherein the D10, D50, and D90 (each unit is [μm]) on a volume frequency basis as measured according to the laser diffraction/scattering method.