Patent application number | Description | Published |
20090021141 | FLUORESCENT SUBSTANCE AND PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT ELEMENT USING THE SAME - Provided is a phosphor material for a white LED with a blue LED or ultraviolet LED as a light source. | 01-22-2009 |
20090050845 | BETA TYPE SIALON FLUORESCENT SUBSTANCE - A β type Sialon fluorescent substance is disclosed that is capable of achieving enhanced brightness of a white light emitting diode using blue to ultraviolet light as a light source. In the fluorescent substance which contains not less than 90% by mass of a β type Sialon composition represented by general formula: Si | 02-26-2009 |
20100053932 | FLUORESCENT SUBSTANCE AND PRODUCTION METHOD THEREOF, AND LIGHT EMITTING DEVICE - Offered is a fluorescent substance consisting of Eu-activated β-sialon and capable of enhancing the brightness of a light emitting device such as a white LED using blue or ultraviolet light as a light source. The fluorescent substance has as its main constituent a β-sialon represented by the general formula Si | 03-04-2010 |
20100208481 | LIGHT-EMITTING DEVICE, VEHICULAR LIGHTING FIXTURE COMPRISING THE DEVICE, AND HEAD LAMP - A light-emitting device comprising a light source which emits excitation light and a fluorescent substance which absorbs the excitation light to emit light in combination, wherein a fluorescent substance comprising an α type SiAlON represented by the general formula: (Ca | 08-19-2010 |
20100237767 | SIALON PHOSPHOR, PROCESS FOR PRODUCING THE SAME, AND ILLUMINATOR AND LUMINESCENT ELEMENT EMPLOYING THE SAME - Phosphor that can provide white LED that uses a blue LED or an ultraviolet LED as a light source and that has superior luminous efficiency. This phosphor includes, as a main component, α-type sialon represented by a general expression: (M1)x(M2)y(Si,Al) | 09-23-2010 |
20110198656 | B-SIALON PHOSPHOR, USE THEREOF AND METHOD FOR PRODUCING SAME - An Eu-activated β-sialon phosphor showing a high luminance, the use thereof and the method of producing the same. The β-sialon phosphor includes, as a matrix, a β-sialon crystal represented by a general formula: Si | 08-18-2011 |
20110279018 | ALPHA-SIALON PHOSPHOR, METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING DEVICE - α-sialon phosphor that is α-sialon represented by a general expression: (M) | 11-17-2011 |
20120270049 | SIALON PHOSPHOR, PROCESS FOR PRODUCING THE SAME, AND ILLUMINATOR AND LUMINESCENT ELEMENT EMPLOYING THE SAME - Phosphor that can provide white LED that uses a blue LED or an ultraviolet LED as a light source and that has superior luminous efficiency. This phosphor includes, as a main component, α-type sialon represented by a general expression: (M1)x(M2)y(Si,Al) | 10-25-2012 |
20130106277 | METHOD OF PRODUCING B-SIALON, B-SIALON, AND PRODUCTS USING THE SAME | 05-02-2013 |
20130120691 | BETA-SIALON, AND LIGHT EMITTING DEVICE AND APPLICATIONS THEREOF - An object of the present invention is to provide a phosphor that is combined with a blue LED to achieve white light at a low color temperature as if singly, has a broad fluorescence spectrum for excellent color rendering properties, has a high luminous efficiency, is thermally and chemically stable like conventional nitride-based phosphors, and has a small decrease in luminance at high temperatures. Another object of the present invention is to provide a light emitting device using such a phosphor. The present invention relates to a β-sialon that is expressed by the general formula, Si | 05-16-2013 |
20130193600 | SIALON PHOSPHOR, PROCESS FOR PRODUCING THE SAME, AND ILLUMINATOR AND LUMINESCENT ELEMENT EMPLOYING THE SAME - Phosphor that can provide white LED that uses a blue LED or an ultraviolet LED as a light source and that has superior luminous efficiency. This phosphor includes, as a main component, α-type sialon represented by a general expression: (M1)x(M2)y(Si,Al) | 08-01-2013 |
20130300014 | PROCESS FOR PRODUCTION OF beta-SIALON - The purpose of the present invention is to provide a process for producing a β-SiAlON having higher fluorescence intensity. The present invention relates to a process for producing a β-SiAlON, which comprises a mixing step of mixing a raw material powder containing silicon, aluminum and europium, a burning step of burning the mixed raw material under the atmosphere of an inert gas or a non-oxidizing gas to produce a β-SiAlON represented by the following general formula: Si | 11-14-2013 |
20130328478 | PHOSPHOR, LIGHT-EMITTING DEVICE AND USE THEREOF - The present invention provides: a phosphor which can be combined with a blue LED to emit white light having a low color temperature as in the case where the phosphor is used singly, has a broad fluorescence spectrum, high light emission efficiency, and thermal/chemical stability, and rarely undergoes the deterioration in brightness at higher temperatures. This phosphor is represented by the general formula: Mx(Si,Al)2(N,O)3±y (wherein M independently represent Li or at least one alkali earth metal element; and x and y fulfill the requirement represented by the formulae: 0.52≦x≦0.9 and 0≦y≦0.3) wherein some of M are substituted by element Ce, and wherein the Si/Al atomic ratio is 1.5 to 6 inclusive, the O/N atomic ratio is 0 to 0.1 inclusive, 5-50 mol % of M's is Li, and 0.5-10 mol % of M is Ce. | 12-12-2013 |