Patents by Inventor Xiaohua Ma

Xiaohua Ma 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).

  • Patent number: 10604627
    Abstract: The present disclosure provides for a multi-anhydride, a polyimide, a method of making a dianhydride, a method making a multi-anhydride, a method of making a polyimide, and the like.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: March 31, 2020
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Xiaohua Ma
  • Publication number: 20200095423
    Abstract: Embodiments of the present disclosure describe polyimide blend compositions, methods of making polyimide blend compositions, methods of using polyimides, membranes including polyimide blends, methods of making membranes including polyimide blends, methods of separating mixtures using the membranes including polyimide blends, and the like.
    Type: Application
    Filed: February 6, 2018
    Publication date: March 26, 2020
    Inventors: Ingo PINNAU, Nasser ALASLAI, Xiaohua MA, Yingge WANG
  • Publication number: 20200075934
    Abstract: A negative electrode composition includes a silicon containing material and a crosslinked polymer containing coating surrounding at least a portion of the silicon containing material. The crosslinked polymer containing coating comprises a (co)polymer derived from polymerization of one or more vinylic monomers comprising a carboxyl or carboxylate group.
    Type: Application
    Filed: May 14, 2018
    Publication date: March 5, 2020
    Inventors: Tianyu Wu, Mark J. Pellerite, Kevin W. Eberman, Xiaohua Ma, Li Liu
  • Publication number: 20190358947
    Abstract: Transfer films, articles made therewith, and methods of making and using transfer films to form an electrical stack are disclosed. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each electrical protolayer independently comprising at least 25 wt % sacrificial material and a thermally stable material and having a uniform thickness of less than 25 micrometers. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each protolayer independently exhibiting a complex viscosity of between 103 and 104 Poise at a shear rate of 100/s when heated to a temperature between its Tg and Tdec.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Inventors: Martin B. Wolk, Michael Benton Free, Daniel J. Schmidt, Justin P. Meyer, Mark J. Pellerite, Stephen A. Johnson, Terry O. Collier, Xiaohua Ma
  • Patent number: 10414145
    Abstract: Transfer films, articles made therewith, and methods of making and using transfer films to form an electrical stack are disclosed. The transfer films (100) may include a plurality of co-extensive electrical protolayers (22, 23, 24) forming an electrical protolayer stack (20), at least selected or each electrical protolayer independently comprising at least 25 wt % sacrificial material and a thermally stable material and having a uniform thickness of less than 25 micrometers. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each protolayer independently exhibiting a complex viscosity of between 103 and 104 Poise at a shear rate of 100/s when heated to a temperature between its Tg and Tdec.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: September 17, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Martin B. Wolk, Michael Benton Free, Daniel J. Schmidt, Justin P. Meyer, Mark J. Pellerite, Stephen A. Johnson, Terry O. Collier, Xiaohua Ma
  • Publication number: 20190237369
    Abstract: The present disclosure provides a method for characterizing ohmic contact electrode performance of a semiconductor device. The method comprises: preparing two sets of testing patterns on a semiconductor device; testing resistance values of the two sets of testing patterns respectively; calculating a sheet resistance of an ohmic contact area according to the obtained resistance values; and evaluating the ohmic contact electrode performance of the semiconductor device according to the sheet resistance of the ohmic contact electrode.
    Type: Application
    Filed: April 6, 2019
    Publication date: August 1, 2019
    Inventors: XUEFENG ZHENG, XIAOHUA MA, YUE HAO, SHUAISHUAI DONG, PENG JI, YINGZHE WANG, ZHENLING TANG, CHONG WANG, SHIHUI WANG
  • Publication number: 20190218345
    Abstract: Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Xiaohua Ma, Bader S. Ghanem, Ingo Pinnau
  • Publication number: 20190185481
    Abstract: Embodiments of the present disclosure provide compounds derived by Troger's amine as shown below, microporous structures, membranes, methods of making said compounds, structures, and membranes, methods of use for gas separation, and the like (Formula A1).
    Type: Application
    Filed: June 19, 2017
    Publication date: June 20, 2019
    Inventors: Xiaohua MA, Ingo PINNAU
  • Patent number: 10240001
    Abstract: Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: March 26, 2019
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiaohua Ma, Bader S. Ghanem, Ingo Pinnau
  • Publication number: 20180375095
    Abstract: An electrochemically active material includes an active phase that includes silicon, and at least one inactive phase having a Scherrer Grain Size of greater than 5 nanometers. Each inactive phase of the material having a Scherrer Grain Size of greater than 5 nanometers has a lattice mismatch to Li15Si4 of greater than 5%.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Inventors: Xiaohua Ma, Mark N. Obrovac
  • Publication number: 20180371168
    Abstract: The present disclosure provides for a multi-anhydride, a polyimide, a method of making a dianhydride, a method making a multi-anhydride, a method of making a polyimide, and the like.
    Type: Application
    Filed: November 10, 2016
    Publication date: December 27, 2018
    Inventor: Xiaohua MA
  • Publication number: 20180076445
    Abstract: An electrochemically active material is represented by general formula (I): SiuSnvM1wM2x[P0.2O0.8]y.Az(I) where u, v, w, x, y, and z represent atomic % values and u+v+w+x+y+z=100, M1 includes a metal element or combinations of metal elements selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, B, carbon, or alloys thereof, M2 includes a metal element or combinations of metal elements selected from Mg, Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, or alloys thereof, A is an inactive phase other than a phosphate or silicide, and 0<u<90, 0?v<20, 0<w<50, 0<x<20, 0<y<20, and 0?z<50.
    Type: Application
    Filed: March 17, 2016
    Publication date: March 15, 2018
    Inventors: Xiaohua Ma, Vincent J. Chevrier
  • Patent number: 9840514
    Abstract: Embodiments of the present disclosure provide for an aromatic dianhydride, a method of making an aromatic dianhydride, an aromatic dianhydride-based polyimide, a method of making an aromatic dianhydride-based polyimide, and the like.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: December 12, 2017
    Assignee: King Abdullah University of Science and Technology
    Inventors: Xiaohua Ma, Ingo Pinnau, Bader Ghanem
  • Publication number: 20170239931
    Abstract: Transfer films, articles made therewith, and methods of making and using transfer films to form an electrical stack are disclosed. The transfer films (100) may include a plurality of co-extensive electrical protolayers (22, 23, 24) forming an electrical protolayer stack (20), at least selected or each electrical protolayer independently comprising at least 25 wt % sacrificial material and a thermally stable material and having a uniform thickness of less than 25 micrometers. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each protolayer independently exhibiting a complex viscosity of between 103 and 104 Poise at a shear rate of 100/s when heated to a temperature between its Tg and Tdec.
    Type: Application
    Filed: August 26, 2015
    Publication date: August 24, 2017
    Inventors: Martin B. Wolk, Michael Benton Free, Daniel J. Schmidt, Justin P. Meyer, Mark J. Pellerite, Stephen A. Johnson, Terry O. Collier, Xiaohua Ma
  • Publication number: 20170190842
    Abstract: Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.
    Type: Application
    Filed: July 14, 2015
    Publication date: July 6, 2017
    Inventors: Xiaohua Ma, Bader S. Ghanem, Ingo Pinnau
  • Patent number: 9369300
    Abstract: The present invention relates to state transition, especially relates to method and means for state transition of Ethernet linear protection switching. It is provided a method of state transition for a local end of a protection group of Ethernet linear protection switching in a local network element, and the method comprises receiving a first message configured to change the state of the local end with a first state, the first message being overridden by the first state; receiving a second message configured to change the state of the local end; determining a second state of the local end on the basis of the first message and the second message; and changing the state of the local end into the second state. In this way, there will be no unnecessary state transition and then no traffic loss caused by the unnecessary state transition.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: June 14, 2016
    Assignee: Alcatel Lucent
    Inventors: Xiaohua Ma, Tianfang Xiong
  • Publication number: 20160152630
    Abstract: Embodiments of the present disclosure provide for an aromatic dianhydride, a method of making an aromatic dianhydride, an aromatic dianhydride-based polyimide, a method of making an aromatic dianhydride-based polyimide, and the like.
    Type: Application
    Filed: July 2, 2014
    Publication date: June 2, 2016
    Applicant: King Abdullah University of Science and Technology
    Inventors: Xiaohua Ma, Ingo Pinnau, Bader Ghanem
  • Patent number: 8525198
    Abstract: A UV LED device and the method for fabricating the same are provided. The device has aluminum nitride nucleating layers, an intrinsic aluminum gallium nitride epitaxial layer, an n-type aluminum gallium nitride barrier layer, an active region, a first p-type aluminum gallium nitride barrier layer, a second p-type aluminum gallium nitride barrier layer, and a p-type gallium nitride cap layer arranged from bottom to top on a substrate. A window region is etched in the p-type gallium nitride cap layer for emitting the light generated.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: September 3, 2013
    Assignee: Xidian University
    Inventors: Yue Hao, Ling Yang, Xiaohua Ma, Xiaowei Zhou, Peixian Li
  • Publication number: 20120182861
    Abstract: The present invention relates to state transition, especially relates to method and means for state transition of Ethernet linear protection switching. It is provided a method of state transition for a local end of a protection group of Ethernet linear protection switching in a local network element, and the method comprises receiving a first message configured to change the state of the local end with a first state, the first message being overridden by the first state; receiving a second message configured to change the state of the local end; determining a second state of the local end on the basis of the first message and the second message; and changing the state of the local end into the second state. In this way, there will be no unnecessary state transition and then no traffic loss caused by the unnecessary state transition.
    Type: Application
    Filed: August 17, 2009
    Publication date: July 19, 2012
    Inventors: Xiaohua Ma, Tianfang Xiong
  • Patent number: D849497
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 28, 2019
    Assignees: SHENZHEN ZHISHEN INFORMATION TECHNOLOGY CO., LTD, GUILIN ZHISHEN INFORMATION TECHNOLOGY CO., LTD
    Inventors: Xin Wang, Xiaohua Ma, Lin Liang