粉末状蛍光体とその製造方法、発光デバイス及び照明装置

Title:

粉末状蛍光体とその製造方法、発光デバイス及び照明装置

Document Type and Number:

Japanese Patent JP4788944

Kind Code:

B2

Abstract:

Powdered fluorescent material excited by visible light that emits visible light has particles with particle sizes of 20 µm or less in the content of below 2% by mass. The method for manufacturing a powdered fluorescent material comprises the steps of: sintering raw material powder of the fluorescent material; and chemically processing the sintered powder after said sintering with acid solution.

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Inventors:

Ken Sakuma
Naoki Kimura
Hiroko Odo
Naoto Hirosaki

Application Number:

JP2005079662A

Publication Date:

October 05, 2011

Filing Date:

March 18, 2005

Export Citation:

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Assignee:

Fujikura Ltd.
National Institute for Materials Science

International Classes:

C09K11/64; C09K11/08; H01L33/30; H01L33/48; H01L33/50; H01L33/54; H01L33/56; H01L33/60; H01L33/62

Domestic Patent References:

JP5255665A
JP5295364A
JP2002173676A
JP2005068169A
JP2004051931A
JP11193378A
JP63170270A
JP2002353516A
JP2005255885A
JP2005154611A

Foreign References:

WO2003082564A1
WO2003092081A1

Attorney, Agent or Firm:

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe

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