Patents by Inventor Baixin Qian
Baixin Qian 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: 10490817Abstract: The present invention relates to nanostructured materials (including nanowires) for use in batteries. Exemplary materials include carbon-comprising, Si-based nanostructures, nanostructured materials disposed on carbon-based substrates, and nanostructures comprising nanoscale scaffolds. The present invention also provides methods of preparing battery electrodes, and batteries, using the nanostructured materials.Type: GrantFiled: May 19, 2010Date of Patent: November 26, 2019Assignee: OneD Material LLCInventors: Yimin Zhu, Jay L. Goldman, Jason Hartlove, Hans Jurgen Hofler, Baixin Qian, Vijendra Sahi, Ionel C. Stefan, David P. Stumbo
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Patent number: 10266409Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.Type: GrantFiled: October 25, 2017Date of Patent: April 23, 2019Assignee: Nanosys, Inc.Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffrey A. Whiteford
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Patent number: 9688534Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.Type: GrantFiled: January 6, 2016Date of Patent: June 27, 2017Assignee: NANOSYS, INC.Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffrey A. Whiteford
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Patent number: 9469538Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.Type: GrantFiled: October 7, 2014Date of Patent: October 18, 2016Assignee: Nanosys, Inc.Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffrey A. Whiteford
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Patent number: 9040208Abstract: A catalyst layer for a fuel cell membrane electrode assembly includes a plurality of agglomerates, adjacent ones of the plurality of agglomerates contacting with each other with pores provided between said adjacent ones of the plurality of agglomerates, each of the plurality of agglomerates being formed by packing a plurality of catalysts each consisting of noble metal fine particles supported on a fiber-like support material, adjacent ones of the plurality of catalysts contacting with each other with pores provided between said adjacent ones of the plurality of catalysts, and each of the plurality of catalysts contacting with a plurality of catalysts other than said each catalyst at a plurality of contact points. This allows providing a catalyst layer, a fuel cell membrane electrode assembly, and a fuel cell, each of which has compact size and excellent power generation performance, and a method for producing the same.Type: GrantFiled: May 3, 2010Date of Patent: May 26, 2015Assignees: OneD Material LLC, Sharp Kabushiki KaishaInventors: Masashi Muraoka, Kohtaroh Saitoh, Hirotaka Mizuhata, Takenori Onishi, Yimin Zhu, Ionel C. Stefan, Baixin Qian, Jay Goldman
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Patent number: 9006133Abstract: The present invention relates to electrochemical catalyst particles, including nanoparticles, which can be used membrane electrode assemblies and in fuel cells. In exemplary embodiments, the present invention provides electrochemical catalysts supported by various materials. Suitably the catalysts have an atomic ratio of oxygen to a metal in the nanoparticle of about 3 to about 6.Type: GrantFiled: October 22, 2009Date of Patent: April 14, 2015Assignees: OneD Material LLC, Sharp Kabushiki KaishaInventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan, Mutsuko Komoda, Hirotaka Mizuhata, Takenori Onishi
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Patent number: 8884273Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.Type: GrantFiled: October 7, 2011Date of Patent: November 11, 2014Assignee: Nanosys, Inc.Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffery A. Whiteford
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Patent number: 8592037Abstract: Compositions containing a nanostructure, preferably a nanocrystal, are provided. The nanostructures have ligands bound to the surface. Such ligands are preferably siloxane containing ligands having at least one —COON group, although ligands having various ?P?O groups are also contemplated. The nanostructures can be embedded into a polymer such as a silicone polymer.Type: GrantFiled: October 20, 2011Date of Patent: November 26, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: J. Wallace Parce, Paul Bernatis, Robert Dubrow, William P Freeman, Joel Gamoras, Shihai Kan, Andreas Meisel, Baixin Qian, Jeffery A Whiteford, Jonathan Ziebarth
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Patent number: 8425803Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes of the present invention can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes of the present invention can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided.Type: GrantFiled: November 9, 2009Date of Patent: April 23, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: J. Wallace Parce, Paul Bernatis, Robert Dubrow, William P. Freeman, Joel Gamoras, Shihai Kan, Andreas Meisel, Baixin Qian, Jeffery A. Whiteford, Jonathan Ziebarth
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Patent number: 8278011Abstract: The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.Type: GrantFiled: February 23, 2009Date of Patent: October 2, 2012Assignee: Nanosys, Inc.Inventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan
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Publication number: 20120068118Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided.Type: ApplicationFiled: October 20, 2011Publication date: March 22, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: J. Wallace Parce, Paul Bernatis, Robert Dubrow, William P. Freeman, Joel Gamoras, Shihai Kan, Andreas Meisel, Baixin Qian, Jeffery A. Whiteford, Jonathan Ziebarth
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Publication number: 20120021331Abstract: The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.Type: ApplicationFiled: February 23, 2009Publication date: January 26, 2012Applicant: NANOSYS, Inc.Inventors: Yimin ZHU, Jay L. GOLDMAN, Baixin QIAN, Ionel C. STEFAN
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Patent number: 8088483Abstract: Methods for producing Group 10 metal nanostructures are provided. The methods involve novel precursors, novel surfactants, or novel precursor-surfactant combinations. Compositions related to the methods are also featured.Type: GrantFiled: December 15, 2005Date of Patent: January 3, 2012Assignee: Nanosys, Inc.Inventors: Jeffery A. Whiteford, Mihai A. Buretea, William P. Freeman, J. Wallace Parce, Baixin Qian, Erik C. Scher
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Patent number: 8062967Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.Type: GrantFiled: June 1, 2009Date of Patent: November 22, 2011Assignee: Nanosys, Inc.Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffery A. Whiteford
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Publication number: 20110275005Abstract: The present invention relates to interfacial layers for use m membrane electrode assemblies that comprise nanowire-supported catalysts, and fuel cells comprising such membrane electrode assemblies. The present invention also relates to methods of preparing membrane electrode assemblies and fuel cells comprising interfacial layers and nanowire-supported catalysts.Type: ApplicationFiled: October 22, 2009Publication date: November 10, 2011Applicant: Nanosys, IncInventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan, Masashi Muraoka, Takenori Onishi, Kohtaroh Saitoh, Hirotaka Mizuhata
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Publication number: 20110275011Abstract: The present invention relates to electrochemical catalyst particles, including nanoparticles, which can be used membrane electrode assemblies and in fuel cells. In exemplary embodiments, the present invention provides electrochemical catalysts supported by various materials. Suitably the catalysts have an atomic ratio of oxygen to a metal in the nanoparticle of about 3 to about 6.Type: ApplicationFiled: October 22, 2009Publication date: November 10, 2011Applicants: Sharp Kabushiki Kaisha, Nanosys, Inc.Inventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan, Mutsuko Komoda, Hirotaka Mizuhata, Takenori Onishi
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Publication number: 20110008707Abstract: A catalyst layer for a fuel cell membrane electrode assembly includes a plurality of agglomerates, adjacent ones of the plurality of agglomerates contacting with each other with pores provided between said adjacent ones of the plurality of agglomerates, each of the plurality of agglomerates being formed by packing a plurality of catalysts each consisting of noble metal fine particles supported on a fiber-like support material, adjacent ones of the plurality of catalysts contacting with each other with pores provided between said adjacent ones of the plurality of catalysts, and each of the plurality of catalysts contacting with a plurality of catalysts other than said each catalyst at a plurality of contact points. This allows providing a catalyst layer, a fuel cell membrane electrode assembly, and a fuel cell, each of which has compact size and excellent power generation performance, and a method for producing the same.Type: ApplicationFiled: May 3, 2010Publication date: January 13, 2011Applicants: NANOSYS, Inc., Sharp Kabushiki KaishaInventors: Masashi MURAOKA, Kohtaroh Saitoh, Hirotaka Mizuhata, Takenori Onishi, Yimin Zhu, Ionel C. Stefan, Baixin Qian, Jay L. Goldman
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Patent number: RE45703Abstract: The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.Type: GrantFiled: October 2, 2014Date of Patent: September 29, 2015Assignee: OneD Material LLCInventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan
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Patent number: RE46921Abstract: The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.Type: GrantFiled: September 28, 2015Date of Patent: June 26, 2018Assignee: OneD Material LLCInventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan
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Patent number: RE48084Abstract: The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.Type: GrantFiled: June 25, 2018Date of Patent: July 7, 2020Assignee: ONED MATERIAL LLCInventors: Yimin Zhu, Jay L. Goldman, Baixin Qian, Ionel C. Stefan