Denka Company Limited

Ryousuke Kondo

Akihisa Kajiyama

Keita Kobayashi

Shunsuke Mitani

Kazuya Sugita

Takuya Matsufuji

A &#x3b2;-type sialon phosphor represented by the following expression 1, in which D50 is 10 &#x3bc;m 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 [&#x3bc;m]) on a volume frequency basis as measured according to a laser diffraction/scattering method. Expression 1: SiAlON:Eu(wherein 0&#x3c;a&#x2264;3; 0&#x3c;b&#x2264;3; 0&#x3c;x&#x2264;0.1), expression 2: (D90&#x2212;D10)/D50&#x3c;1.6 (wherein the D10, D50, and D90 (each unit is [&#x3bc;m]) on a volume frequency basis as measured according to the laser diffraction/scattering method.

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Omuta, Japan

Ryousuke Kondo