Patents by Inventor Shihe Yang
Shihe Yang 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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Patent number: 11111432Abstract: Provided herein are triangular carbon quantum dots with narrow bandwidth emission, methods of making them, and methods of using such triangular carbon quantum dots, such as in multicolored LED displays.Type: GrantFiled: January 2, 2018Date of Patent: September 7, 2021Assignee: BEIJING NORMAL UNIVERSITYInventors: Louzhen Fan, Fanglong Yuan, Shihe Yang, Zifan Xi
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Publication number: 20200354630Abstract: Provided herein are triangular carbon quantum dots with narrow bandwidth emission, methods of making them, and methods of using such triangular carbon quantum dots, such as in multicolored LED displays.Type: ApplicationFiled: January 2, 2018Publication date: November 12, 2020Applicant: BEIJING NORMAL UNIVERSITYInventors: Louzhen FAN, Fanglong YUAN, Shihe YANG, Zifan XI
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Patent number: 8840863Abstract: A method for the synthesis of nano-products, such as atomic titanium oxide wires. The method allows wires of anatase titanium oxide wires to be formed in a range of tunable diameters and aspect ratios in the nanometer and subnanometer size scales. The method also allows the titanium wires to be capped by oleic acid to enhance dispersing and solubility. The method allows the titanium wires to be surface doped with nitrogen species to enhance stability and functionality such as enhanced absorption in the visible wavelength region, which is useful for photodegradation of organic wastes in water by sunlight.Type: GrantFiled: August 28, 2009Date of Patent: September 23, 2014Assignee: The Hong Kong University of Science and TechnologyInventors: Shihe Yang, Chenmin Liu
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Patent number: 7892520Abstract: The present disclosure includes a method for preparing an aqueous dispersion of ?-Fe2O3 nanoparticles. The method includes grinding an iron (II) hydrated salt, an iron (III) hydrated salt, an inorganic salt, and alkali hydroxide in a grinding or milling machine. The inorganic salt may be a salt matrix that prevents growth and aggregation of the synthesized nanoparticles. The aqueous dispersion of ?-Fe2O3 nanoparticles may optionally be hydrothermally treated to become an aqueous dispersion of ?-Fe2O3 nanoparticles. Also disclosed is a method for preparing an mixture of ?-Fe2O3 nanoparticles and ?-Fe2O3 nanoparticles, in which at least an iron (III) hydrated salt, an inorganic salt, and alkali hydroxide are ground in a grinding or milling machine. Uses for the nanoparticles include: a magnetic resonance image contrast agent, a color print ink, an artificial tanning pigment, a photocatalyst for degradation of organic dye, a red pigment, an adsorbent for waste water treatment, a catalyst support, and a catalyst.Type: GrantFiled: July 27, 2007Date of Patent: February 22, 2011Assignee: The Hong Kong University of Science and TechnologyInventors: Jun Lu, Ka Ming Ng, Shihe Yang
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Publication number: 20100069229Abstract: A method for the synthesis of nano-products, such as atomic titanium oxide wires. The method allows wires of anatase titanium oxide wires to be formed in a range of tunable diameters and aspect ratios in the nanometer and subnanometer size scales. The method also allows the titanium wires to be capped by oleic acid to enhance dispersing and solubility. The method allows the titanium wires to be surface doped with nitrogen species to enhance stability and functionality such as enhanced absorption in the visible wavelength region, which is useful for photodegradation of organic wastes in water by sunlight.Type: ApplicationFiled: August 28, 2009Publication date: March 18, 2010Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Shihe YANG, Chenmin LIU
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Publication number: 20100034730Abstract: The present subject matter provides a time- and energy-saving paste-state mechanochemical process to synthesize zinc oxide nanoparticles. Our nanoparticles are small, have abundant surface hydroxyl groups and exhibit excellent UV blocking characteristics. One embodiment involves a process for preparing zinc oxide nanoparticles comprising grinding, milling, or a combination thereof a mixture comprising (a) at least one zinc salt, (b) at least one additional inorganic salt, and (c) at least one alkali hydroxide compound.Type: ApplicationFiled: May 1, 2008Publication date: February 11, 2010Applicant: The Hong Kong University of Science and TechnologyInventors: Jun Lu, Ka Ming Ng, Shihe Yang, Jiyun Feng
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Patent number: 7540717Abstract: A technique has been developed to fabricate micro- or nanopumps based on porous alumina thin films. The main body of the nanopump consists of a porous alumina thin film (containing nano-sized channels of about 40-300 nm in diameter) with conductive surfaces (e.g. Au coating layers) on both sides of the film. Through the fabrication of nanochannels in (the alumina films) and the subsequent annealing and surface activation processes, high-efficiency micro- or nanopumps can be made. The nanofluidic flow through the nanochannels of the alumina thin films is driven by an electric field with no moving parts. The flow rate (up to 50 millilitres/(min·cm2)) of water through the alumina thin film can be continuously tuned through the intensity of the electric field, i.e., the DC electric potential applied across the nanochannels.Type: GrantFiled: June 3, 2005Date of Patent: June 2, 2009Assignee: The Hong Kong University of Science and TechnologyInventors: Ping Sheng, Ning Wang, Jianying Miao, Zhiyu Yang, Shihe Yang, Xinyi Zhang
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Publication number: 20080181843Abstract: The present disclosure includes a method for preparing an aqueous dispersion of ?-Fe2O3 nanoparticles. The method includes grinding an iron (II) hydrated salt, an iron (III) hydrated salt, an inorganic salt, and alkali hydroxide in a grinding or milling machine. The inorganic salt may be a salt matrix that prevents growth and aggregation of the synthesized nanoparticles. The aqueous dispersion of ?-Fe2O3 nanoparticles may optionally be hydrothermally treated to become an aqueous dispersion of ?-Fe2O3 nanoparticles. Also disclosed is a method for preparing an mixture of ?-Fe2O3 nanoparticles and ?-Fe2O3 nanoparticles, in which at least an iron (III) hydrated salt, an inorganic salt, and alkali hydroxide are ground in a grinding or milling machine. Uses for the nanoparticles include: a magnetic resonance image contrast agent, a color print ink, an artificial tanning pigment, a photocatalyst for degradation of organic dye, a red pigment, an adsorbent for waste water treatment, a catalyst support, and a catalyst.Type: ApplicationFiled: July 27, 2007Publication date: July 31, 2008Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Jun Lu, Ka Ming Ng, Shihe Yang
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Publication number: 20060275138Abstract: A technique has been developed to fabricate micro- or nanopumps based on porous alumina thin films. The main body of the nanopump consists of a porous alumina thin film (containing nano-sized channels of about 40-300 nm in diameter) with conductive surfaces (e.g. Au coating layers) on both sides of the film. Through the fabrication of nanochannels in (the alumina films) and the subsequent annealing and surface activation processes, high-efficiency micro- or nanopumps can be made. The nanofluidic flow through the nanochannels of the alumina thin films is driven by an electric field with no moving parts. The flow rate (up to 50 millilitres/(min·cm2)) of water through the alumina thin film can be continuously tuned through the intensity of the electric field, i.e., the DC electric potential applied across the nanochannels.Type: ApplicationFiled: June 3, 2005Publication date: December 7, 2006Applicant: The Hong Kong University of Science and TechnologyInventors: Ping Sheng, Ning Wang, Jianying Miao, Zhiyu Yang, Shihe Yang, Xinyi Zhang
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Patent number: 6984343Abstract: There is described an electrorheological fluid comprising coated nanoparticle suspended in an electrically insulated hydrophobic liquid. The core particles consist of TiO2 or metal salts of the form M1xM22-2xTiO(C2O4)2 where M1 is selected from the group consisting of Ba, Sr and Ca and wherein M2 is selected from the group consisting of Rb, Li, Na and K. The particle shell is made of highly polar molecules selected from the group consisting of thiourea and urea.Type: GrantFiled: June 28, 2004Date of Patent: January 10, 2006Assignee: China Patent Investment LimitedInventors: Weijia Wen, Ping Sheng, Shihe Yang
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Publication number: 20050285085Abstract: There is described an electrorheological fluid comprising coated nanoparticle suspended in an electrically insulated hydrophobic liquid. The core particles consist of TiO2 or metal salts of the form M1xM22-2xTiO(C2O4)2 where M1 is selected from the group consisting of Ba, Sr and Ca and wherein M2 is selected from the group consisting of Rb, Li, Na and K. The particle shell is made of highly polar molecules selected from the group consisting of thiourea and urea.Type: ApplicationFiled: June 28, 2004Publication date: December 29, 2005Applicant: China Patent Investment LimitedInventors: Weijia Wen, Ping Sheng, Shihe Yang
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Patent number: 6852251Abstract: There is described an electrorheological fluid comprising particles of a composite material suspended in an electrically insulating hydrophobic liquid. The composite particles are metal salts of the form M1xM22-2xTiO(C2O4)2 where M1 is selected from the group consisting of Ba, Sr and Ca and wherein M2 is selected from the group consisting of Rb, Li, Na and K, and the composite particles further include a promoter selected from the group consisting of urea, butyramide and acetamide.Type: GrantFiled: September 16, 2002Date of Patent: February 8, 2005Assignee: The Hong Kong University of Science and TechnologyInventors: Ping Sheng, Weijia Wen, Che Ting Chan, Weikun Ge, Shihe Yang
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Publication number: 20040051076Abstract: There is described an electrorheological fluid comprising particles of a composite material suspended in an electrically insulating hydrophobic liquid. The composite particles are metal salts of the form M1xM22-2xTiO(C2O4)2 where M1 is selected from the group consisting of Ba, Sr and Ca and wherein M2 is selected from the group consisting of Rb, Li, Na and K, and the composite particles further include a promoter selected from the group consisting of urea, butyramide and acetamide.Type: ApplicationFiled: September 16, 2002Publication date: March 18, 2004Inventors: Ping Sheng, Weijia Wen, Che Ting Chan, Weikun Ge, Shihe Yang