Title:
RED PHOSPHOR AND LIGHT EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/220816
Kind Code:
A1
Abstract:
The primary crystal phase of this phosphor has the same crystal structure as CaAlSiN3, and part of the element Ca therein is substituted with the element Eu, wherein the median radius d50 measured with laser diffraction scattering is 12.0-22.0 μm, and the specific surface area measured with the BET method is 1.50-10.00 m²/g.
Inventors:
TAKEDA YUSUKE (JP)
NOMIYAMA TOMOHIRO (JP)
TAKAMURA MARINA (JP)
WATANABE SHINTARO (JP)
NOMIYAMA TOMOHIRO (JP)
TAKAMURA MARINA (JP)
WATANABE SHINTARO (JP)
Application Number:
PCT/JP2019/015362
Publication Date:
November 21, 2019
Filing Date:
April 08, 2019
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C09K11/64; H01L33/50
Domestic Patent References:
| WO2015001860A1 | 2015-01-08 |
Foreign References:
| JP2017179187A | 2017-10-05 | |||
| JP2015203096A | 2015-11-16 | |||
| JP2017210626A | 2017-11-30 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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