http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7884539-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c6a9fd6219b32cd3893a49979951bf4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_435f7fafc4b931eae59de228af7272de |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02B20-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-0883 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77348 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J63-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J1-62 |
| filingDate | 2008-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95c3f3bd1453ad287c3e506b8de7d465 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18ab562230b55a10839641ff57cc0efe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d38aa7a64b5612f185ed18d0a6aab630 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed6fd72ac99cc45058106a71d34826e7 |
| publicationDate | 2011-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7884539-B2 |
| titleOfInvention | Light source having phosphor including divalent, trivalent and tetravalent elements |
| abstract | A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca 3 N 2 (2N), CaO (2N), AlN (3N), Si 3 N 4 (3N), and Eu 2 O 3 (3N) are prepared, and the respective raw materials are mixed to have a mole ratio of the respective elements of Ca:Al:Si:Eu=0.985:1:1:0.015. The mixed raw materials are fired at 1000° C. or higher in an inert atmosphere for three hours, and thereafter pulverized to obtain a phosphor having a composition of CaAlSiN 2.83 O 0.25 :Eu, which is one example of the phosphor satisfying the above described object. Furthermore, by combining the phosphor with an appropriate LED or a light source emitting from ultraviolet light to visible light, the LED and the light source emitting white and other color lights with good color rendering properties can be obtained. |
| priorityDate | 2004-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 99.