Invention Grant
- Patent Title: Oxynitride phosphor powder, silicon nitride powder for production of oxynitride phosphor powder, and production method of oxynitride phosphor powder
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Application No.: US14350929Application Date: 2012-10-12
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Publication No.: US09758720B2Publication Date: 2017-09-12
- Inventor: Masataka Fujinaga , Takayuki Ueda , Takuma Sakai , Shinsuke Jida
- Applicant: Ube Industries, Ltd.
- Applicant Address: JP
- Assignee: Ube Industries, Ltd.
- Current Assignee: Ube Industries, Ltd.
- Current Assignee Address: JP
- Agency: DLA Piper LLP (US)
- Priority: JP2011-224827 20111012; JP2012-072792 20120328; JP2012-075602 20120329
- International Application: PCT/JP2012/076485 WO 20121012
- International Announcement: WO2013/054901 WO 20130418
- Main IPC: C09K11/77
- IPC: C09K11/77 ; C01B21/082 ; C09K11/08 ; H05B33/14 ; H01L33/50
Abstract:
An oxynitride phosphor powder contains α-SiAlON and aluminum nitride, obtained by mixing a silicon source, an aluminum source, a calcium source, and a europium source to produce a composition represented by a compositional formula: Cax1Eux2Si12−(y+z)Al(y+z)OzN16−z (wherein x1, x2, y and z are 0
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