Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenichi Yoshimura0
Hiroshi Fukunaga0
Makoto Izumi0
Date of Patent
November 5, 2019
0Patent Application Number
160249350
Date Filed
July 2, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A light-emitting device includes a light-emitting element that emits blue light, a Mn2+-activated γ-AlON phosphor and a Eu2+-activated β-SiAlON phosphor that are excited by the blue light to emit green light, and a red phosphor that is excited by the blue light to emit red light. The weight ratio of the Mn2+-activated γ-AlON phosphor to the Eu2+-activated β-SiAlON phosphor is from 20 to 75.
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