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Patent Searching and Data


Title:
METHOD FOR PRODUCING FLUOROPHOR POWDER, FLUOROPHOR POWDER AND VISIBLE WAVELENGTH LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2005298696
Kind Code:
A
Abstract:

To improve the emission intensity and emission efficiency of a fluorophor.

This fluorophor powder is characterized in that the particle diameters of the fluorophor 7a and 7b are ≤20 μm and the rate of particles having particle diameters of ≤2 μm is ≤10%.


Inventors:
SAKUMA KEN (JP)
OMICHI KOUJI (JP)
Application Number:
JP2004118051A
Publication Date:
October 27, 2005
Filing Date:
April 13, 2004
Export Citation:
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Assignee:
FUJIKURA LTD (JP)
International Classes:
C09K11/08; H01L33/50; H01L33/52; (IPC1-7): C09K11/08; H01L33/00
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Shunichi Takahashi