Method for producing ceramic composite material, ceramic composite material, and light emitting device
US-2019309221-A1 · Oct 10, 2019 · US
Phosphor and production method thereof, phosphor-containing composition, light emitting device, illuminating device, display, and nitrogen-containing compound
US8992797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992797-B2 |
| Application number | US-201313842220-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2013 |
| Priority date | Apr 18, 2007 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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To provide a new phosphor of which fluorescence contains much red light component and has a large full width at half maximum, the crystal phase represented by the formula [I] is included in the phosphor. R 3−x−y−z+w2 M z A 1.5x+y−w2 Si 6−w1−w2 Al W1+w2 O y+w1 N 11−y−w1 [I] (R represents La, Gd, Lu, Y and/or Sc, M represents Ce, Eu, Mn, Yb, Pr and/or Tb, A represents Ba, Sr, Ca, Mg and/or Zn, and x, y, z, w1 and w2 are the numeric values in the following ranges: (1/7)≦(3− x−y−z+w 2)/6<(1/2), 0<(1.5 x+y−w 2)/6<(9/2), 0< x <3, 0≦ y <2, 0< z <1, 0≦ w 1≦5, 0≦ w 2≦5, and 0≦ w 1+ w 2≦5).
First claim
Opening claim text (preview).
The invention claimed is: 1. A phosphor comprising a crystal phase represented by formula [I], R 3−x−y−z+w2 M z A 1.5x+y−w2 Si 6−w1−w2 Al w1+w2 O y+w1 N 11−y−w1 [I] wherein, R represents at least one kind of a rare-earth element selected from the group consisting of La, Gd, Lu, Y and Sc, M represents at least one kind of a metal element selected from the group consisting of Ce, Eu, Mn, Yb, Pr and Tb, A represents at least one kind of a bivalent metal element selected…
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Electricity · mapped topic
Electricity · mapped topic
- C09K11/77747Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09K11/0883Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US8992797B2 cover?
- To provide a new phosphor of which fluorescence contains much red light component and has a large full width at half maximum, the crystal phase represented by the formula [I] is included in the phosphor. R 3−x−y−z+w2 M z A 1.5x+y−w2 Si 6−w1−w2 Al W1+w2 O y+w1 N 11−y−w1 [I] (R represents La, Gd, Lu, Y and/or Sc, M represents Ce, Eu, Mn, Yb, Pr and/or Tb, A represents Ba, Sr, Ca, Mg and/or …
- Who is the assignee on this patent?
- Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification C09K11/77747. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).