Patents Assigned to C3NANO INC.
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Patent number: 11814531Abstract: Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.Type: GrantFiled: November 17, 2022Date of Patent: November 14, 2023Assignee: C3Nano Inc.Inventors: Ying-Syi Li, Xiqiang Yang, Yu Kambe, Xiaofeng Chen, Hua Gu, Steven Michael Lam, Melanie Maniko Inouye, Arthur Yung-Chi Cheng, Alex Da Zhang Tan, Christopher S. Scully, Ajay Virkar
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Patent number: 10902965Abstract: Desirable methods for larger scale silver nanoplate synthesis are described along with methods for applying a noble metal coating onto the silver nanoplates to form coated silver nanoplates with a desirable absorption spectrum. The silver nanoplates are suitable for use in coatings for altering the hue of a transparent film. The hue adjustment can be particularly desirable for transparent conductive films.Type: GrantFiled: October 30, 2018Date of Patent: January 26, 2021Assignee: C3Nano Inc.Inventors: Yongxing Hu, Alexander Seung-il Hong, Ying-Syi Li, Xiqiang Yang, Yadong Cao, Ajay Virkar
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Patent number: 10870772Abstract: Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.Type: GrantFiled: September 11, 2018Date of Patent: December 22, 2020Assignee: C3Nano Inc.Inventors: Ying-Syi Li, Xiqiang Yang, Yu Kambe, Xiaofeng Chen, Hua Gu, Steven Michael Lam, Melanie Maniko Inouye, Arthur Yung-Chi Cheng, Alex Da Zhang Tan, Christopher Steven Scully, Ajay Virkar
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Patent number: 10781324Abstract: Metal nanowires, such as silver nanowires coated on a substrate were sintered together to form fused metal nanowire networks that have greatly improved conductivity while maintaining good transparency and low haze. The method of forming such a fused metal nanowire networks are disclosed that involves exposure of metal nanowires to various fusing agents on a short timescale. The resulting sintered network can have a core-shell structure in which metal halide forms the shell. Additionally, effective methods are described for forming patterned structure with areas of sintered metal nanowire network with high conductivity and areas of un-sintered metal nanowires with low conductivity. The corresponding patterned films are also described.Type: GrantFiled: February 1, 2018Date of Patent: September 22, 2020Assignee: C3Nano Inc.Inventors: Ajay Virkar, Ying-Syi Li, Xiqiang Yang, Melburne C. LeMieux
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Patent number: 10738212Abstract: Optically transparent films can comprise a coating of nanodiamonds to introduce desirable properties, such as hardness, good thermal conductivity and an increased dielectric constant. In general, transparent conductive films can be formed with desirable property enhancing nanoparticles included in a transparent conductive layer and/or in a coating layer. Property enhancing nanoparticles can be formed from materials having a large hardness parameter, a large thermal conductivity and/or a large dielectric constant. Suitable polymers are incorporated as a binder in the layers with the property enhancing nanoparticles. The coatings with property enhancing nanoparticles can be solution coated and corresponding solutions are described.Type: GrantFiled: February 6, 2018Date of Patent: August 11, 2020Assignee: C3Nano Inc.Inventors: Ajay Virkar, Faraz Azadi Manzour, Xiqiang Yang, Hua Gu
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Patent number: 10714230Abstract: Highly uniform and thin silver nanowires are described having average diameters below 20 nm and a small standard deviation of the diameters. The silver nanowires have a high aspect ratio. The silver nanowires can be characterized by a small number of nanowires having a diameter greater than 18 nm as well as with a blue shifted narrow absorption spectrum in a dilute solution. Methods are described to allow for the synthesis of the narrow uniform silver nanowires. Transparent conductive films formed from the thin, uniform silver nanowires can have very low levels of haze and low values of ?L*, the diffusive luminosity, such that the transparent conductive films can provide little alteration of the appearance of a black background.Type: GrantFiled: April 12, 2018Date of Patent: July 14, 2020Assignee: C3Nano Inc.Inventors: Yongxing Hu, Ying-Syi Li, Xiqiang Yang, Jing Shun Ang, Ajay Virkar
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Patent number: 10438714Abstract: Highly uniform and thin silver nanowires are described having average diameters below 20 nm and a small standard deviation of the diameters. The silver nanowires have a high aspect ratio. The silver nanowires can be characterized by a small number of nanowires having a diameter greater than 18 nm as well as with a blue shifted narrow absorption spectrum in a dilute solution. Methods are described to allow for the synthesis of the narrow uniform silver nanowires. Transparent conductive films formed from the thin, uniform silver nanowires can have very low levels of haze and low values of ?L*, the diffusive luminosity, such that the transparent conductive films can provide little alteration of the appearance of a black background.Type: GrantFiled: January 16, 2019Date of Patent: October 8, 2019Assignee: C3Nano Inc.Inventors: Yongxing Hu, Ying-Syi Li, Xiqiang Yang, Jing Shun Ang, Ajay Virkar
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Patent number: 10147512Abstract: Desirable methods for larger scale silver nanoplate synthesis are described along with methods for applying a noble metal coating onto the silver nanoplates to form coated silver nanoplates with a desirable absorption spectrum. The silver nanoplates are suitable for use in coatings for altering the hue of a transparent film. The hue adjustment can be particularly desirable for transparent conductive films.Type: GrantFiled: December 9, 2015Date of Patent: December 4, 2018Assignee: C3Nano Inc.Inventors: Yongxing Hu, Alexander Seung-il Hong, Ying-Syi Li, Xiqiang Yang, Yadong Cao, Ajay Virkar
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Patent number: 10100213Abstract: Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.Type: GrantFiled: August 25, 2016Date of Patent: October 16, 2018Assignee: C3Nano Inc.Inventors: Ying-Syi Li, Xiqiang Yang, Yu Kambe, Xiaofeng Chen, Hua Gu, Steven Michael Lam, Melanie Mariko Inouye, Authur Yung-Chi Cheng, Alex Da Zhang Tan, Christopher Steven Scully, Ajay Virkar
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Patent number: 10029916Abstract: Metal nanowires, such as silver nanowires coated on a substrate were fused together to form fused metal nanowire networks that have greatly improved conductivity while maintaining good transparency. Materials formed form the fused metal nanowire networks described herein can have a transparency to visible light of at least about 85% and a sheet resistance of no more than about 100 Ohms/square or a transparency to visible light of at least about 90% and a sheet resistance of no more than about 250 Ohms/square. The method of forming such a fused metal nanowire networks are disclosed that involves exposure of metal nanowires to various fusing agents on a short timescale. When formed into a film, materials comprising the metal nanowire network demonstrate low sheet resistance while maintaining desirably high levels of optical transparency, making them suitable for transparent electrode formation.Type: GrantFiled: June 22, 2012Date of Patent: July 24, 2018Assignee: C3Nano Inc.Inventors: Ajay Virkar, Ying-Syi Li, Melburne C. LeMieux
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Patent number: 10020807Abstract: Reduction/oxidation reagents have been found to be effective to chemically cure a sparse metal nanowire film into a fused metal nanostructured network through evidently a ripening type process. The resulting fused network can provide desirable low sheet resistances while maintaining good optical transparency. The transparent conductive films can be effectively applied as a single conductive ink or through sequential forming of a metal nanowire film with the subsequent addition of a fusing agent. The fused metal nanowire films can be effectively patterned, and the patterned films can be useful in devices, such as touch sensors.Type: GrantFiled: February 26, 2013Date of Patent: July 10, 2018Assignee: C3NANO INC.Inventors: Ajay Virkar, Xiqiang Yang, Ying-Syi Li, Dennis McKean, Melburne C. LeMieux
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Patent number: 9920207Abstract: Metal nanowires, such as silver nanowires coated on a substrate were sintered together to form fused metal nanowire networks that have greatly improved conductivity while maintaining good transparency and low haze. The method of forming such a fused metal nanowire networks are disclosed that involves exposure of metal nanowires to various fusing agents on a short timescale. The resulting sintered network can have a core-shell structure in which metal halide forms the shell. Additionally, effective methods are described for forming patterned structure with areas of sintered metal nanowire network with high conductivity and areas of un-sintered metal nanowires with low conductivity. The corresponding patterned films are also described.Type: GrantFiled: October 30, 2012Date of Patent: March 20, 2018Assignee: C3NANO INC.Inventors: Ajay Virkar, Ying-Syi Li, Xiqiang Yang, Melburne C. LeMieux
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Patent number: 9530534Abstract: Metal nanowires with uniform noble metal coatings are described. Two methods, galvanic exchange and direct deposition, are disclosed for the successful formation of the uniform noble metal coatings. Both the galvanic exchange reaction and the direct deposition method benefit from the inclusion of appropriately strong binding ligands to control or mediate the coating process to provide for the formation of a uniform coating. The noble metal coated nanowires are effective for the production of stable transparent conductive films, which may comprise a fused metal nanostructured network.Type: GrantFiled: August 11, 2015Date of Patent: December 27, 2016Assignee: C3Nano Inc.Inventors: Yongxing Hu, Xiqiang Yang, Ying-Syi Li, Alexander Seung-Il Hong, Melanie Mariko Inouye, Yadong Cao, Ajay Virkar
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Patent number: 9447301Abstract: Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.Type: GrantFiled: September 9, 2015Date of Patent: September 20, 2016Assignee: C3Nano Inc.Inventors: Ying-Syi Li, Xiqiang Yang, Yu Kambe, Xiaofeng Chen, Hua Gu, Steven Michael Lam, Melanie Mariko Inouye, Arthur Yung-Chi Cheng, Alex Da Zhang Tan, Christopher S. Scully, Ajay Virkar
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Patent number: 9183968Abstract: Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.Type: GrantFiled: July 31, 2014Date of Patent: November 10, 2015Assignee: C3Nano Inc.Inventors: Ying-Syi Li, Xiqiang Yang, Yu Kambe, Xiaofeng Chen, Hua Gu, Steven Michael Lam, Melanie Mariko Inouye, Arthur Yung-Chi Cheng, Alex Da Zhang Tan, Christopher S. Scully, Ajay Virkar
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Patent number: 9150746Abstract: Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.Type: GrantFiled: August 20, 2014Date of Patent: October 6, 2015Assignee: C3Nano Inc.Inventors: Ying-Syi Li, Xiqiang Yang, Yu Kambe, Xiaofeng Chen, Hua Gu, Steven Michael Lam, Melanie Mariko Inouye, Arthur Yung-Chi Cheng, Alex Da Zhang Tan, Christopher S. Scully, Ajay Virkar
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Publication number: 20140302296Abstract: Inks for the formation of transparent conductive films are described that comprise an aqueous or alcohol based solvent, carbon nanotubes as well as suitable dopants. Suitable dopants generally comprise halogenated ionic dopants. In some embodiment, the inks comprise sulfonated dispersants that can effectively provide additional doping to improve electrical conductivity as well as stabilize the inks with respect to settling and/or improve the fluid properties of the inks for certain processing approaches. The inks can be processed into films with desirable levels of electrical conductivity and optical transparency.Type: ApplicationFiled: September 24, 2012Publication date: October 9, 2014Applicant: C3NANO INC.Inventors: Melburne C. LeMieux, Ajay Virkar, Yung-Yu Huang
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Publication number: 20140238833Abstract: Reduction/oxidation reagents have been found to be effective to chemically cure a sparse metal nanowire film into a fused metal nanostructured network through evidently a ripening type process. The resulting fused network can provide desirable low sheet resistances while maintaining good optical transparency. The transparent conductive films can be effectively applied as a single conductive ink or through sequential forming of a metal nanowire film with the subsequent addition of a fusing agent. The fused metal nanowire films can be effectively patterned, and the patterned films can be useful in devices, such as touch sensors.Type: ApplicationFiled: February 26, 2013Publication date: August 28, 2014Applicant: C3NANO INC.Inventors: Ajay Virkar, Xiqiang Yang, Ying-Syi Li, Dennis McKean, Melburne C. LeMieux
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Publication number: 20140087164Abstract: Inks for the formation of transparent conductive films are described that comprise an aqueous or alcohol based solvent, carbon nanotubes as well as suitable dopants. Suitable dopants generally comprise halogenated ionic dopants. In some embodiment, the inks comprise sulfonated dispersants that can effectively provide additional doping to improve electrical conductivity as well as stabilize the inks with respect to settling and/or improve the fluid properties of the inks for certain processing approaches. The inks can be processed into films with desirable levels of electrical conductivity and optical transparency.Type: ApplicationFiled: September 24, 2012Publication date: March 27, 2014Applicant: C3NANO INC.Inventors: Melburne C. LeMieux, Ajay Virkar, Yung-Yu Huang
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Publication number: 20130342221Abstract: Metal nanowires, such as silver nanowires coated on a substrate were sintered together to form fused metal nanowire networks that have greatly improved conductivity while maintaining good transparency and low haze. The method of forming such a fused metal nanowire networks are disclosed that involves exposure of metal nanowires to various fusing agents on a short timescale. The resulting sintered network can have a core-shell structure in which metal halide forms the shell. Additionally, effective methods are described for forming patterned structure with areas of sintered metal nanowire network with high conductivity and areas of un-sintered metal nanowires with low conductivity. The corresponding patterned films are also described.Type: ApplicationFiled: October 30, 2012Publication date: December 26, 2013Applicant: C3NANO INC.Inventors: Ajay Virkar, Ying-Syi Li, Xiqiang Yang, Melburne C. LeMieux