Phosphor and production method of the same and light source...

Details Phosphor and production method of the same and light source... Phosphor and production method of the same and light source...

2007-11-06

2007-11-06

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C252S30160F, C313S503000, C257S098000

Reexamination Certificate

active

10922086

ABSTRACT:
A phosphor with high efficiency having an excitation band corresponding to light of the ultraviolet-visible (300 to 550 nm) wavelength region emitted from a light emitting element which emits blue or ultraviolet light is provided. Commercially available CaO [3N], Si3N4[3N], and Eu2O3[3N] are prepared, respective materials are weighed and mixed to have a mol ratio of CaO:Si3N4:Eu2O3=1.4775:1:0.01125, and then the mixture is heated to 1600° C. by a heating rate of 15° C./min under a nitrogen atmosphere and retained and fired at 1600° C. for three hours. Thereafter, the raw materials are cooled down from 1600° C. to 200° C. for an hour to thereby produce a phosphor having a composition formula Ca1.58Si3O1.63N4.35:Eu0.024.

REFERENCES:
patent: 18985 (1857-12-01), Olds
patent: 2121275 (1938-06-01), Zober et al.
patent: 3527595 (1970-09-01), Adler et al.
patent: 4477689 (1984-10-01), Ogasahara et al.
patent: 4576736 (1986-03-01), Harmuth
patent: 5398398 (1995-03-01), Williams et al.
patent: 5447291 (1995-09-01), Sandhage
patent: 6670748 (2003-12-01), Ellens et al.
patent: 7138756 (2006-11-01), Gotoh et al.
patent: 2003/0030038 (2003-02-01), Mitomo et al.
patent: 2003/0030368 (2003-02-01), Ellens et al.
patent: 2003/0094893 (2003-05-01), Ellens et al.
patent: 2003/0132422 (2003-07-01), Tian et al.
patent: 2003/0152804 (2003-08-01), Miura et al.
patent: 2003/0213611 (2003-11-01), Morita
patent: 2004/0155225 (2004-08-01), Yamada et al.
patent: 2004/0263074 (2004-12-01), Baroky et al.
patent: 2005/0189863 (2005-09-01), Nagatomi et al.
patent: 2005/0203845 (2005-09-01), Yoshimine et al.
patent: 2005/0205845 (2005-09-01), Deising et al.
patent: 2005/0253500 (2005-11-01), Gotoh et al.
patent: 2005/0267243 (2005-12-01), Amasaki et al.
patent: 2006/0006782 (2006-01-01), Nagatomi et al.
patent: 2006/0017365 (2006-01-01), Nagatomi et al.
patent: 2006/0021788 (2006-02-01), Kohayashi et al.
patent: 2006/0022573 (2006-02-01), Gotoh et al.
patent: 2006/0033083 (2006-02-01), Sakane et al.
patent: 2006/0043337 (2006-03-01), Sakane et al.
patent: 2006/0045832 (2006-03-01), Nagatomi et al.
patent: 2006/0065878 (2006-03-01), Sakane et al.
patent: 2006/0076883 (2006-04-01), Himaki et al.
patent: 2006/0091790 (2006-05-01), Nagatomi et al.
patent: 2006/0170332 (2006-08-01), Tamaki et al.
patent: 2006/0197432 (2006-09-01), Nagatomi et al.
patent: 2006/0197439 (2006-09-01), Sakane et al.
patent: 2006/0220047 (2006-10-01), Nagatomi et al.
patent: 2006/0220520 (2006-10-01), Sakane et al.
patent: 2006/0244356 (2006-11-01), Nagatomi et al.
patent: 2007/0029525 (2007-02-01), Gotoh et al.
patent: 0 459 156 (1991-04-01), None
patent: 1 296 376 (2003-03-01), None
patent: 1 445 295 (2004-08-01), None
patent: 05-015655 (1993-01-01), None
patent: 05-198433 (1993-08-01), None
patent: 11-144938 (1999-05-01), None
patent: 11-277527 (1999-10-01), None
patent: 2000-073053 (2000-03-01), None
patent: 2000-153167 (2000-06-01), None
patent: 2001-214162 (2001-08-01), None
patent: 2001-214162 (2001-08-01), None
patent: 2002-363554 (2002-12-01), None
patent: 2003-013059 (2003-01-01), None
patent: 2003-096446 (2003-04-01), None
patent: 2003-124527 (2003-04-01), None
patent: 2003-124527 (2003-04-01), None
patent: 2003-515655 (2003-05-01), None
patent: 2003-515655 (2003-07-01), None
patent: 2003-277746 (2003-10-01), None
patent: 2003-277746 (2003-10-01), None
patent: 2003-336059 (2003-11-01), None
patent: 2003-336059 (2003-11-01), None
patent: 2004-055910 (2004-02-01), None
patent: 2004-505470 (2004-02-01), None
patent: 2004-067837 (2004-03-01), None
patent: 2004-067837 (2004-03-01), None
patent: 2004-189997 (2004-07-01), None
patent: 2004-235598 (2004-08-01), None
patent: 2004-244560 (2004-09-01), None
patent: 2004-055536 (2004-12-01), None
patent: 2005-344025 (2005-12-01), None
patent: 2006-028295 (2006-02-01), None
patent: 2006-063214 (2006-03-01), None
patent: 2006-063286 (2006-03-01), None
patent: 2006-070109 (2006-03-01), None
patent: 2006-176546 (2006-07-01), None
patent: WO 01/40403 (2001-06-01), None
patent: WO 02/11214 (2002-02-01), None
patent: WO 2004/030109 (2004-04-01), None
patent: WO 2004/039915 (2004-05-01), None
patent: WO 2004/055910 (2004-07-01), None
patent: WO 2005/052087 (2005-06-01), None
U.S. Appl. No. 10/984,772, filed Nov. 10, 2004, Nagatomi et al.
U.S. Appl. No. 11/061,669, filed Feb. 22, 2005, Nagatomi et al.
U.S. Appl. No. 11/063,847, filed Feb. 23, 2005, Sakane et al.
U.S. Appl. No. 11/149,317, filed Jun. 10, 2005, Nagatomi et al.
U.S. Appl. No. 11/149,192, filed Jun. 10, 2005, Sakane et al.
U.S. Appl. No. 11/198,281, filed Aug. 8, 2005, Nagatomi et al.
U.S. Appl. No. 11/194,590, filed Aug. 2, 2005, Gotoh et al.
U.S. Appl. No. 11/211,751, filed Aug. 26, 2005, Sakane et al.
U.S. Appl. No. 11/218,504, filed Sep. 6, 2005, Nagatomi et al.
JIS Z 8726; “Method of Specifying Colour Rendering Properties of Light Sources”; (1990), pp. 381-390.
“Phosphor Handbook”; (compiled by Phosphor Research Society, published by Ohmusha, Ltd., 1987); pp. 172-176.
U.S. Appl. No. 11/194,590, filed Aug. 2, 2005.
K. Uheda et al., “The Crystal Structure and Photoluminescence Properties of a New Red Phosphor, Calcium Aluminum Silicon Nitride Doped With Divalent Euroium,” Abs. 2073, 206thMeeting., Oct. 3, 2004.

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