Patents by Inventor Jizhou Song
Jizhou Song 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: 10333069Abstract: The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.Type: GrantFiled: November 17, 2016Date of Patent: June 25, 2019Assignees: The Board of Trustees of The University of Illinois, Northwestern University, University of MiamiInventors: John A. Rogers, William L. Wilson, Sung Hun Jin, Simon N. Dunham, Xu Xie, Ahmad Islam, Frank Du, Yonggang Huang, Jizhou Song
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Patent number: 10292261Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: GrantFiled: May 7, 2015Date of Patent: May 14, 2019Assignees: The Board of Trustees of the University of Illinois, Northwestern UniversityInventors: John A Rogers, Yonggang Huang, Heung Cho Ko, Mark Stoykovich, Won Mook Choi, Jizhou Song, Jong Hyun Ahn, Dae Hyeong Kim
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Patent number: 10064269Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: GrantFiled: October 22, 2014Date of Patent: August 28, 2018Assignee: The Board of Trustees of the University of IllinoisInventors: John A Rogers, Yonggang Huang, Heung Cho Ko, Mark Stoykovich, Won Mook Choi, Jizhou Song, Jong Hyun Ahn, Dae Hyeong Kim
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Patent number: 9825229Abstract: The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.Type: GrantFiled: April 3, 2014Date of Patent: November 21, 2017Assignees: The Board of Trustees of the University of Illinois, Northwestern University, University of MiamiInventors: John A. Rogers, William L. Wilson, Sung Hun Jin, Simon N. Dunham, Xu Xie, Ahmad Islam, Frank Du, Yonggang Huang, Jizhou Song
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Publication number: 20170291817Abstract: The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.Type: ApplicationFiled: November 17, 2016Publication date: October 12, 2017Inventors: John A. ROGERS, William L. WILSON, Sung Hun JIN, Simon N. DUNHAM, Xu XIE, Ahmed ISLAM, Frank DU, Yonggang HUANG, Jizhou SONG
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Publication number: 20160133843Abstract: The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.Type: ApplicationFiled: April 3, 2014Publication date: May 12, 2016Inventors: John A. ROGERS, William L. WILSON, Sung Hun JIN, Simon N. DUNHAM, Xu XIE, Ahmed ISLAM, Frank DU, Yonggang HUANG, Jizhou SONG
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Publication number: 20150237711Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: ApplicationFiled: May 7, 2015Publication date: August 20, 2015Inventors: John A. ROGERS, Yonggang HUANG, Heung Cho KO, Mark STOYKOVICH, Won Mook CHOI, Jizhou SONG, Jong Hyun AHN, Dae Hyeong KIM
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Publication number: 20150181700Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: ApplicationFiled: October 22, 2014Publication date: June 25, 2015Inventors: John A ROGERS, Yonggang HUANG, Heung Cho KO, Mark STOYKOVICH, Won Mook CHOI, Jizhou SONG, Jong Hyun AHN, Dae Hyeong KIM
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Patent number: 8905772Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: GrantFiled: August 23, 2013Date of Patent: December 9, 2014Assignees: The Board of Trustees of the University of Illinois, Northwestern UniversityInventors: John A Rogers, Yonggang Huang, Heung Cho Ko, Mark Stoykovich, Won Mook Choi, Jizhou Song, Jong Hyun Ahn, Dae Hyeong Kim
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Publication number: 20140140020Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: ApplicationFiled: August 23, 2013Publication date: May 22, 2014Inventors: John A. ROGERS, Yonggang HUANG, Heung Cho KO, Mark STOYKOVICH, Won Mook CHOI, Jizhou SONG, Jong Hyun AHN, Dae Hyeong KIM
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Patent number: 8552299Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: GrantFiled: March 5, 2009Date of Patent: October 8, 2013Assignee: The Board of Trustees of the University of IllinoisInventors: John A. Rogers, Yonggang Huang, Heung Cho Ko, Mark Stoykovich, Won Mook Choi, Jizhou Song, Jong Hyun Ahn, Dae Hyeong Kim
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Publication number: 20100002402Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.Type: ApplicationFiled: March 5, 2009Publication date: January 7, 2010Inventors: John A. Rogers, Yonggang Huang, Heung Cho Ko, Mark Stoykovich, Won Mook Choi, Jizhou Song, Jong Hyun Ahn, Dae Hyeong Kim