Patents Assigned to Litec GBR
  • Light emitting device having a divalent europium-activated alkaline earth metal orthosilicate phoshor
    Publication number: 20100155761
    Abstract: A light emitting device includes a light emitting element comprising a nitride semiconductor and a phosphor that can absorb a part of light emitted from the light emitting element and can emit light of a wavelength different from that of the absorbed light. The phosphor comprises a silicate phosphor comprising three alkali earth metals.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 24, 2010
    Applicants: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GMBH, Litec GBR, Leuchstoff Breitungen GMBH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wofgang Kempfert, Detlef Starick
  • Light emitting device
    Patent number: 7679101
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: March 16, 2010
    Assignees: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GmbH, Litec GBR, Leuchstoffwerk Breitungen GmbH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick
  • Light emitting device
    Publication number: 20070090383
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 26, 2007
    Applicants: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GMBH, Litec GBR, Leuchstoffwerk Breitungen GMBH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick
  • Light emitting device having a divalent-europium-activated alkaline earth metal orthosilicate phosphor
    Patent number: 7157746
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: January 2, 2007
    Assignees: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GmbH, Litec GBR, Leuchstoffwerk Breitungen GmbH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick
  • Light emitting device
    Patent number: 7138660
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: November 21, 2006
    Assignees: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GmbH, Litec GBR, Leuchstoffwerk Breitungen GmbH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick
  • Light emitting device having phosphor of alkaline earth metal silicate
    Patent number: 6943380
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: September 13, 2005
    Assignees: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GmbH, Litec GBR, Leuchstoffwerk Breitungen GmbH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick
  • Light emitting device
    Publication number: 20050162069
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Application
    Filed: March 24, 2005
    Publication date: July 28, 2005
    Applicants: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GMBH, Litec GBR, Leuchstoffwerk Breitungen GMBH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick
  • Light emitting device
    Publication number: 20050077532
    Abstract: The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 14, 2005
    Applicants: Toyoda Gosei Co., Ltd., Tridonic Optoelectronics GMBH, Litec GBR, Leuchstoffwerk Breitungen GMBH
    Inventors: Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert, Detlef Starick