Patents Assigned to C3NANO INC.
  • Patent number: 11814531
    Abstract: 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: Grant
    Filed: November 17, 2022
    Date of Patent: November 14, 2023
    Assignee: 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
  • Patent number: 10902965
    Abstract: 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: Grant
    Filed: October 30, 2018
    Date of Patent: January 26, 2021
    Assignee: C3Nano Inc.
    Inventors: Yongxing Hu, Alexander Seung-il Hong, Ying-Syi Li, Xiqiang Yang, Yadong Cao, Ajay Virkar
  • Patent number: 10870772
    Abstract: 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: Grant
    Filed: September 11, 2018
    Date of Patent: December 22, 2020
    Assignee: 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
  • Patent number: 10781324
    Abstract: 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: Grant
    Filed: February 1, 2018
    Date of Patent: September 22, 2020
    Assignee: C3Nano Inc.
    Inventors: Ajay Virkar, Ying-Syi Li, Xiqiang Yang, Melburne C. LeMieux
  • Patent number: 10738212
    Abstract: 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: Grant
    Filed: February 6, 2018
    Date of Patent: August 11, 2020
    Assignee: C3Nano Inc.
    Inventors: Ajay Virkar, Faraz Azadi Manzour, Xiqiang Yang, Hua Gu
  • Patent number: 10714230
    Abstract: 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: Grant
    Filed: April 12, 2018
    Date of Patent: July 14, 2020
    Assignee: C3Nano Inc.
    Inventors: Yongxing Hu, Ying-Syi Li, Xiqiang Yang, Jing Shun Ang, Ajay Virkar
  • Patent number: 10438714
    Abstract: 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: Grant
    Filed: January 16, 2019
    Date of Patent: October 8, 2019
    Assignee: C3Nano Inc.
    Inventors: Yongxing Hu, Ying-Syi Li, Xiqiang Yang, Jing Shun Ang, Ajay Virkar
  • Patent number: 10147512
    Abstract: 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: Grant
    Filed: December 9, 2015
    Date of Patent: December 4, 2018
    Assignee: C3Nano Inc.
    Inventors: Yongxing Hu, Alexander Seung-il Hong, Ying-Syi Li, Xiqiang Yang, Yadong Cao, Ajay Virkar
  • Patent number: 10100213
    Abstract: 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: Grant
    Filed: August 25, 2016
    Date of Patent: October 16, 2018
    Assignee: 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
  • Patent number: 10029916
    Abstract: 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: Grant
    Filed: June 22, 2012
    Date of Patent: July 24, 2018
    Assignee: C3Nano Inc.
    Inventors: Ajay Virkar, Ying-Syi Li, Melburne C. LeMieux
  • Patent number: 10020807
    Abstract: 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: Grant
    Filed: February 26, 2013
    Date of Patent: July 10, 2018
    Assignee: C3NANO INC.
    Inventors: Ajay Virkar, Xiqiang Yang, Ying-Syi Li, Dennis McKean, Melburne C. LeMieux
  • Patent number: 9920207
    Abstract: 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: Grant
    Filed: October 30, 2012
    Date of Patent: March 20, 2018
    Assignee: C3NANO INC.
    Inventors: Ajay Virkar, Ying-Syi Li, Xiqiang Yang, Melburne C. LeMieux
  • Patent number: 9530534
    Abstract: 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: Grant
    Filed: August 11, 2015
    Date of Patent: December 27, 2016
    Assignee: C3Nano Inc.
    Inventors: Yongxing Hu, Xiqiang Yang, Ying-Syi Li, Alexander Seung-Il Hong, Melanie Mariko Inouye, Yadong Cao, Ajay Virkar
  • Patent number: 9447301
    Abstract: 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: Grant
    Filed: September 9, 2015
    Date of Patent: September 20, 2016
    Assignee: 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
  • Patent number: 9183968
    Abstract: 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: Grant
    Filed: July 31, 2014
    Date of Patent: November 10, 2015
    Assignee: 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
  • Patent number: 9150746
    Abstract: 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: Grant
    Filed: August 20, 2014
    Date of Patent: October 6, 2015
    Assignee: 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
  • Publication number: 20140302296
    Abstract: 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: Application
    Filed: September 24, 2012
    Publication date: October 9, 2014
    Applicant: C3NANO INC.
    Inventors: Melburne C. LeMieux, Ajay Virkar, Yung-Yu Huang
  • Publication number: 20140238833
    Abstract: 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: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: C3NANO INC.
    Inventors: Ajay Virkar, Xiqiang Yang, Ying-Syi Li, Dennis McKean, Melburne C. LeMieux
  • Publication number: 20140087164
    Abstract: 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: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: C3NANO INC.
    Inventors: Melburne C. LeMieux, Ajay Virkar, Yung-Yu Huang
  • Publication number: 20130342221
    Abstract: 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: Application
    Filed: October 30, 2012
    Publication date: December 26, 2013
    Applicant: C3NANO INC.
    Inventors: Ajay Virkar, Ying-Syi Li, Xiqiang Yang, Melburne C. LeMieux