Patents by Inventor Qiurong Liao
Qiurong Liao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210105879Abstract: An LED filament bulb includes a driver and two filament sets. The driver includes a rectifier circuit, a filter circuit, a constant voltage (CV) circuit, a first constant current (CC) circuit and a second CC circuit. The rectifier circuit converts an AC power into a DC power. The filter circuit connects the rectifier circuit for filtering an AC component. The CV circuit connects the filter circuit for generating a fixed voltage and outputting the fixed voltage via a voltage output end. The voltage output end connects a first electrode of each filament set. The first CC circuit connects both the CV circuit and a second electrode of one of the filament sets. The second CC circuit connects both the CV circuit and a second electrode of another one of the filament sets. The CC circuits make currents flowing through the two filament sets identical.Type: ApplicationFiled: May 22, 2020Publication date: April 8, 2021Applicant: GRAPHENE LIGHTING PLCInventors: Wenbo Ma, Yu Li, Qiurong Liao, Chiang Li
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Patent number: 10907772Abstract: An LED lamp contains: a base, a casing, a support, multiple LED emitters, a cap, and a driver. The casing includes an accommodation chamber and an opening. The base includes at least one first conductive element. The support includes at least one second conductive element. Each of the at least one LED emitter includes: a first LED chip string having multiple first LED chips connected in series, a second LED chip string having multiple second LED chips connected in series, a substrate, a high-color-temperature phosphor layer, and a low-color-temperature phosphor layer. The driver is electrically connected with the at least one first conductive element and the at least one second conductive element. A total resistance value of the first LED chip string is different from a total resistance value of the second LED chip string.Type: GrantFiled: September 13, 2019Date of Patent: February 2, 2021Assignee: GRAPHENE LIGHTING CHINA LIMITEDInventors: Wenbo Ma, Qiurong Liao, Yu Li, Kuo-Hsin Chang, Chung-Ping Lai
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Publication number: 20200378562Abstract: An LED lamp contains: a base, a casing, a support, multiple LED emitters, a cap, and a driver. The casing includes an accommodation chamber and an opening. The base includes at least one first conductive element. The support includes at least one second conductive element. Each of the at least one LED emitter includes: a first LED chip string having multiple first LED chips connected in series, a second LED chip string having multiple second LED chips connected in series, a substrate, a high-color-temperature phosphor layer, and a low-color-temperature phosphor layer. The driver is electrically connected with the at least one first conductive element and the at least one second conductive element. A total resistance value of the first LED chip string is different from a total resistance value of the second LED chip string.Type: ApplicationFiled: September 13, 2019Publication date: December 3, 2020Inventors: Wenbo MA, Qiurong LIAO, Yu LI, Kuo-Hsin CHANG, Chung-Ping LAI
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Patent number: 10788164Abstract: A light-emitting diode (LED) emitter and a LED lamp having the same are revealed. The LED emitter includes a first LED chip string, a second LED chip string, a substrate, two electrodes, a high-color-temperature phosphor layer and a low-color-temperature phosphor layer. The substrate where the first LED chip string and the second LED chip string are arranged is electrically connected to the two electrodes. The high-color-temperature phosphor layer and low-color-temperature phosphor layer cover the first LED chip string and the second LED chip string respectively. The total resistance value of the first LED chip string is different from the total resistance value of the second LED chip string.Type: GrantFiled: May 28, 2019Date of Patent: September 29, 2020Assignee: Graphene Lighting China LimitedInventors: Wenbo Ma, Qiurong Liao, Yu Li, Kuo-Hsin Chang, Chung-Ping Lai
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Patent number: 10125926Abstract: An LED light including: a light-emitting bulb including a shell; a lamp holder connected to the light-emitting bulb and including external thread; a power driver disposed in the lamp holder; a stem including a wire; and a light-emitting component. The stem and the light-emitting component are disposed in the shell. One end of the stem is connected to the power driver, and the other end of the stem is connected to the light-emitting component. The light-emitting component includes at least two bar-type LED filaments. The at least two bar-type LED filaments are connected in series or in a combination of series and parallel connections. The at least two bar-type LED filaments are connected to the power driver through the wire of the stem.Type: GrantFiled: January 6, 2017Date of Patent: November 13, 2018Assignee: SHANDONG PROSPEROUS STAR OPTOELECTRONICS CO., LTD.Inventors: Wenbo Ma, Qiurong Liao, Yiping Kong, Xincheng Yuan, Minkang Zhou
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Patent number: 9982854Abstract: A LED lamp filament, comprising: a long strip-shaped substrate, a plurality of light-emitting units arranged on a first surface of the substrate and distributed along the extending direction of the substrate, and a light-transmittable fluorescent glue layer covering the first surface and the plurality of light-emitting units. A plurality of bulges are provided on at least one side of the substrate, and the bulges are distributed along the extending direction of the substrate; one part of light excited by the fluorescent glue layer and emitted from the light-emitting units emits out in a direction towards a second surface, opposite to the first surface, of the substrate from a space between adjacent bulges.Type: GrantFiled: July 8, 2014Date of Patent: May 29, 2018Assignees: HUIZHOU VERY LIGHT SOURCE TECHNOLOGY CO., LTD, VERY OPTOELECTRONICS (HUIZHOU) CO., LTD.Inventors: Wenbo Ma, Qiurong Liao
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Publication number: 20170191623Abstract: An LED light including: a light-emitting bulb including a shell; a lamp holder connected to the light-emitting bulb and including external thread; a power driver disposed in the lamp holder; a stem including a wire; and a light-emitting component. The stem and the light-emitting component are disposed in the shell. One end of the stem is connected to the power driver, and the other end of the stem is connected to the light-emitting component. The light-emitting component includes at least two bar-type LED filaments. The at least two bar-type LED filaments are connected in series or in a combination of series and parallel connections. The at least two bar-type LED filaments are connected to the power driver through the wire of the stem.Type: ApplicationFiled: January 6, 2017Publication date: July 6, 2017Inventors: Wenbo MA, Qiurong LIAO, Yiping KONG, Xincheng YUAN, Minkang ZHOU
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Publication number: 20170184262Abstract: A LED lamp filament, comprising: a long strip-shaped substrate, a plurality of light-emitting units arranged on a first surface of the substrate and distributed along the extending direction of the substrate, and a light-transmittable fluorescent glue layer covering the first surface and the plurality of light-emitting units. A plurality of bulges are provided on at least one side of the substrate, and the bulges are distributed along the extending direction of the substrate; one part of light excited by the fluorescent glue layer and emitted from the light-emitting units emits out in a direction towards a second surface, opposite to the first surface, of the substrate from a space between adjacent bulges.Type: ApplicationFiled: July 8, 2014Publication date: June 29, 2017Inventors: Wenbo Ma, Qiurong Liao
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Patent number: 9074136Abstract: Silicate luminescent materials and preparation methods thereof are provided. The luminescent materials are represented by the general formula: M2aM3bSicO[a+3(b+x)/2+2c]:xCe3+, yM0, M2 is at least one selected from Ca, Sr, Ba, Mg and at least contains Ca, M3 is Sc, Sc and Y, M0 is one selected from metal nano particles of Ag, Au, Pt, Pd or Cu, wherein 2.8?a?3.2, 1.8?b?2.1, 2.9?c?3.3, 0.01?x?0.2 and 1×10?4?y?1×10?2. Compared to the luminescent materials in the prior art, the said luminescent materials have higher luminous efficiency and more stable performance and structure. The said methods have simple technique and low cost, therefore are appropriate to be used in industry.Type: GrantFiled: August 13, 2010Date of Patent: July 7, 2015Assignee: Ocean's King Lighting Science & Technology Co., Ltd.Inventors: Mingjie Zhou, Wenbo Ma, Qiurong Liao
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Patent number: 9045690Abstract: A silicate luminescent material and the production method thereof are provided. The chemical formula of the silicate luminescent material is Re4-xTbxMgSi3O13, wherein Re is at least one element selected from the group consisting of Y, Gd, La, Lu and Sc, and 0.05??x?1. The silicate luminescent material has a short afterglow of 2.13 ms, and it can emit strong green light under the vacuum ultraviolet excitation. Additionally, the silicate luminescent material has stable physical and chemical properties. The production method for producing the silicate luminescent material is simple and cost-efficient.Type: GrantFiled: April 28, 2010Date of Patent: June 2, 2015Assignee: Ocean's King Lighting Science & Technology Co., Ltd.Inventors: Mingjie Zhou, Qiurong Liao, Wenbo Ma
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Patent number: 9011722Abstract: Halo-borate luminescent materials and preparation methods thereof are provided. The said luminescent materials are represented by the following general formula: Ca2-xBO3Cl1-yFy:xEu2+, with zM0, wherein M0 is selected from one of Ag, Au, Pt, Pd or Cu metal nano-particles; 0.001?x?0.1, 0?y?0.2, 0<z?0.01. The said luminescent materials have excellent chemical stability and high luminous intensity. The said preparation methods have simple technique, no pollution, manageable process conditions and low equipment requirement, and are beneficial to industry production.Type: GrantFiled: December 14, 2010Date of Patent: April 21, 2015Assignee: Ocean's King Lighting Science & Technology Co., Ltd.Inventors: Mingjie Zhou, Qiurong Liao, Wenbo Ma
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Patent number: 8986573Abstract: Terbium doped phosphate-based green luminescent material and preparation method thereof are provided. The chemical formula of the material is M3RE1-xTbx(PO4)3, wherein, M is alkaline-earth metals, RE is rare-earth elements, x is in a range of 0.001 to 1. The preparation method of the material includes the following steps; providing the compound used as the source of alkaline earth metal, the compound used as the source of phosphate, the compound used as the source of rare-earth, and the compound used as the source of Tb3+ according to the molar ratio of the elements in M3RE1-xTbx(PO4)3, wherein, the compound used as the source of phosphate is added at excess molar ratio in a range of 10% to 30%; mixing and grinding the compound to get mixture; sintering the mixture as pre-treatment, and then cooling the mixture to get a sintered matter; grinding; calcining in reducing atmosphere, and then cooling them.Type: GrantFiled: February 4, 2010Date of Patent: March 24, 2015Assignee: Ocean's King Lighting Science & Technology Co., Ltd.Inventors: Mingjie Zhou, Jun Liu, Xiaofang Liang, Shiliang Liu, Qiurong Liao
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Patent number: 8765016Abstract: A green luminescent material of terbium doped gadolinium borate is provided. The luminescent material has a formula of M3Gd1-xTbx(BO3)3, wherein, M is alkaline earth metal element and x is 0.005-0.5. The method for preparing the luminescent material comprises the following steps: selecting the source compounds of alkaline earth metal ion, boric acid radical ion (BO33?), Gd3+ and Tb3+ by the stoichiometric ratio, wherein, the stoichiometric ratio is the molar ratio of the corresponding element in the formula of M3Gd1-xTbx(BO3)3, and the source compound of BO33? is over 10%-30% by the molar ratio; mixing; pre-treatment by sintering; cooling; grinding; calcination; and cooling to obtain the luminescent material.Type: GrantFiled: February 26, 2010Date of Patent: July 1, 2014Assignee: Ocean's King Lighting Science & Technology Co., Ltd.Inventors: Mingjie Zhou, Xiaofang Liang, Jun Liu, Qiurong Liao
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Publication number: 20130240785Abstract: Halo-borate luminescent materials and preparation methods thereof are provided. The said luminescent materials are represented by the following general formula: Ca2-xBO3Cl1-yFy:xEu2+, zM0, wherein M0 is selected from one of Ag, Au, Pt, Pd or Cu metal nano-particles; 0.001?x?0.1, 0?y?0.2, 0?z?0.01. The said luminescent materials have excellent chemical stability and high luminous intensity. The said preparation methods have simple technique, no pollution, manageable process conditions and low equipment requirement, and are beneficial to industry production.Type: ApplicationFiled: December 14, 2010Publication date: September 19, 2013Inventors: Mingjie Zhou, Qiurong Liao, Wenbo Ma
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Publication number: 20130092876Abstract: Silicate luminescent materials and preparation methods thereof are provided. The luminescent materials are represented by the general formula: M2aM3bSicO[a+3(b+x)/2+2c]:xCe3+, yM0, M2 is at least one selected from Ca, Sr, Ba, Mg and at least contains Ca, M3 is Sc, Sc and Y, M0 is one selected from metal nano particles of Ag, Au, Pt, Pd or Cu, wherein 2.8?a?3.2, 1.8?b?2.1, 2.9?c?3.3, 0.01?x?0.2 and 1×10?4?y?1×10?2. Compared to the luminescent materials in the prior art, the said luminescent materials have higher luminous efficiency and more stable performance and structure. The said methods have simple technique and low cost, therefore are appropriate to be used in industry.Type: ApplicationFiled: August 13, 2010Publication date: April 18, 2013Applicant: Oceans King Lighting Science & Technology Co., LtdInventors: Mingjie Zhou, Wenbo Ma, Qiurong Liao
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Publication number: 20130020534Abstract: A silicate luminescent material and the production method thereof are provided. The chemical formula of the silicate luminescent material is Re4?xTbxMgSi3O13, wherein Re is at least one element selected from the group consisting of Y, Gd, La, Lu and Sc, and 0.05?x?1. The silicate luminescent material has a short afterglow of 2.13 ms, and it can emit strong green light under the vacuum ultraviolet excitation. Additionally, the silicate luminescent material has stable physical and chemical properties. The production method for producing the silicate luminescent material is simple and cost-efficient.Type: ApplicationFiled: April 28, 2010Publication date: January 24, 2013Applicant: OCEAN'S KING LIGHTING SCIENCE & TECHNLOGY CO., LTD.Inventors: Mingjie Zhou, Qiurong Liao, Wenbo Ma
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Publication number: 20120292570Abstract: Terbium doped phosphate-based green luminescent material and preparation method thereof are provided. The chemical formula of the material is M3RE1-xTbx(PO4)3, wherein, M is alkaline-earth metals, RE is rare-earth elements, x is in a range of 0.001 to 1. The preparation method of the material includes the following steps; providing the compound used as the source of alkaline earth metal, the compound used as the source of phosphate, the compound used as the source of rare-earth, and the compound used as the source of Tb3+ according to the molar ratio of the elements in M3RE1-xTbx(PO4)3, wherein, the compound used as the source of phosphate is added at excess molar ratio in a range of 10% to 30%; mixing and grinding the compound to get mixture; sintering the mixture as pre-treatment, and then cooling the mixture to get a sintered matter; grinding; calcining in reducing atmosphere, and then cooling them.Type: ApplicationFiled: February 4, 2010Publication date: November 22, 2012Inventors: Mingjie Zhou, Jun Liu, Xiaofeng Liang, Shiliang Liu, Qiurong Liao
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Publication number: 20120286206Abstract: A green luminescent material of terbium doped gadolinium borate is provided. The luminescent material has a formula of M3Gd1-xTbx(BO3)3, wherein, M is alkaline earth metal element and x is 0.005-0.5. The method for preparing the luminescent material comprises the following steps: selecting the source compounds of alkaline earth metal ion, boric acid radical ion (BO33?), Gd3+ and Tb3+ by the stoichiometric ratio, wherein, the stoichiometric ratio is the molar ratio of the corresponding element in the formula of M3Gd1-xTbx(BO3)3, and the source compound of BO33 is over 10%-30% by the molar ratio; mixing; pre-treatment by sintering; cooling; grinding; calcination; and cooling to obtain the luminescent material.Type: ApplicationFiled: February 26, 2010Publication date: November 15, 2012Inventors: Mingjie Zhou, Xiaofang Liang, Jun Liu, Qiurong Liao
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Patent number: D748297Type: GrantFiled: May 27, 2014Date of Patent: January 26, 2016Assignee: BONSHINE OPTICAL ELECTRON TECHNOLOGY CO., LTD.Inventors: Wenbo Ma, Qiurong Liao, Jianquan Wang, Li Liang