Patents by Inventor Yuan Xu

Yuan Xu 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).

  • Publication number: 20150356989
    Abstract: A method for nano-patterning includes imprinting features in a resist with an imprint mold to form one or more topographic surface patterns on the imprinted resist. A block copolymer (“BCP”) material is deposited on the imprinted resist, wherein a molecular dimension L0 of the BCP material correlates by an integer multiple to a spacing dimension of the one or more topographic surface patterns on the imprinted resist. The deposited BCP is annealed and at least a portion of the annealed BCP is removed, forming a template having discrete domains.
    Type: Application
    Filed: August 19, 2015
    Publication date: December 10, 2015
    Inventors: Yuan Xu, Kim Y. Lee, David S. Kuo, Koichi Wago, Wei Hu
  • Publication number: 20150291700
    Abstract: Antibodies that are agonists of sodium pump (Na+/K+ ATPase; NKA) activity are provided. In particular, antibodies that specifically bind epitopes on the beta-1 (?1) subunit of NKA are disclosed. These antibodies have the ability to increase the activity of the catalytic alpha subunit of NKA upon ?1 subunit binding. Due to their activity, the antibodies also have the ability to trigger a positive inotropic effect in cardiac tissues (i.e., increase cardiac contraction). The present invention thus includes, but is not limited to, NKA ?1 subunit peptide epitopes, antibodies that specifically bind the epitopes, methods of agonizing NKA activity through administration of the peptides or the antibodies, and methods of treating and/or preventing heart disease through administration of the peptides or the antibodies.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 15, 2015
    Inventor: Kai Yuan Xu
  • Patent number: 9140908
    Abstract: Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one hydrophilic vinyl amide-containing monomer, at least one acrylate-containing siloxane monomer, and at least one hydrophilic vinyl ether-containing monomer. The contact lenses have ophthalmically-acceptable surface wettability and can be manufactured without the use of volatile organic solvents.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: September 22, 2015
    Assignee: CooperVision International Holding Company, LP
    Inventors: Junhao Ge, Yuwen Liu, Charlie Chen, Yuan Xu, Ye Hong, Hongjin Qiu
  • Publication number: 20150259438
    Abstract: Methods of inhibiting platelet aggregation using antibodies having binding specificity for the ? subunit of the (Na++K+)-ATPase are provided, along with methods for inhibiting or preventing thrombosis in a subject using such antibodies.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 17, 2015
    Applicant: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventor: Kai Yuan XU
  • Patent number: 9121998
    Abstract: Silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including 30-60 unit parts by weight of a hydrophilic monomer(s) having one N-vinyl group, 10 to 50 unit parts by weight of 2-hydroxyethyl methacrylate (HEMA), and a first siloxane monomer component comprising a siloxane monomer of formula (1) as described herein or a siloxane monomer of formula (2) as described herein or a siloxane monomer of formula (3) as described herein or any combination thereof, where the total amount of siloxane monomer(s) present in the polymerizable composition is from 15 to 40 unit parts by weight. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: September 1, 2015
    Assignee: CooperVision International Holding Company, LP
    Inventors: Charlie Chen, Yuwen Liu, Yuan Xu, Ying Zheng, Junhao Ge, Li Yao, Arthur Back
  • Publication number: 20150175709
    Abstract: Antibodies binding to sites on the alpha-subunit of the (Na++K+)-ATPase increase cardiac contraction of both ventricular myocytes and mouse heart. In particular, antibodies binding to the RSATEEEPPNDD (SEQ ID NO: 1) or DVEDSYGQQWTYEQR (SEQ ID NO: 2) peptides (or isoforms/derivatives thereof) of the alpha-subunit of the (Na++K+)-ATPase, have been found to be highly inotropic. Both the antibodies and the peptides are important for the treatment of human heart failure and other contractile disorders.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Inventor: Kai Yuan Xu
  • Patent number: 9057822
    Abstract: Silicone hydrogel contact lenses that are derived from a polymerizable composition including a first siloxane monomer represented by formula (3): wherein m of formula (3) represents one integer from 3 to 10, n of formula (3) represents one integer from 1 to 10, R1 of formula (3) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (3) is independently either a hydrogen atom or a methyl group; and at least one vinyl ether-containing cross-linking agent are described. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described. In one example, the batches of silicone hydrogel contact lenses are dimensionally stable, and the method of making is a method of making dimensionally stable silicone hydrogel contact lenses.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: June 16, 2015
    Assignee: CooperVision International Holding Company, LP
    Inventors: Yuwen Liu, Ye Hong, Junhao Ge, Yuan Xu, Charlie Chen, Charles A. Francis, Li Yao, Arthur Back
  • Publication number: 20150102848
    Abstract: A high-linearity CMOS input buffer circuit is provided for neutralizing non-linearity of follower circuits' transconductance and output impedance resulting from input signals' variation. In doing so, the linearity of CMOS input buffer is improved. The buffer circuit includes a CMOS input follower circuit, a linearity improvement circuit of follower transistor, a current source load, and a linearity improvement circuit of load impedance. The buffer circuit is fabricated in standard CMOS process, featuring low cost, simplicity and strong linearity at high frequency. It has wide applications in analog and hybrid analog-digital CMOS ICs requiring high linearity input buffer.
    Type: Application
    Filed: November 19, 2012
    Publication date: April 16, 2015
    Inventors: Xi Chen, Gang-Yi Hu, Xue-Liang Xu, Xing-Fa Huang, Liang Li, Xiao-Feng Shen, Ming-Yuan Xu, Lei Zhang, Yan Wang, Rong-Ke Ye, You-Hua Wang, Xu Huang, Jiao-Xue Li
  • Patent number: 8945555
    Abstract: Antibodies binding to sites on the alpha-subunit of the (Na++K+)-ATPase increase cardiac contraction of both ventricular myocytes and mouse heart. In particular, antibodies binding to the RSATEEEPPNDD (SEQ ID NO: 1) or DVEDSYGQQWTYEQR (SEQ ID NO: 2) peptides (or isoforms/derivatives thereof) of the alpha-subunit of the (Na++K+)-ATPase, have been found to be highly inotropic. Both the antibodies and the peptides are important for the treatment of human heart failure and other contractile disorders.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: February 3, 2015
    Inventor: Kai Yuan Xu
  • Patent number: 8946835
    Abstract: A planarization process may planarize a media disk that has data trenches between data features and larger servo trenches between servo features. A filler material layer is deposited on the media disk and provides step coverage of the trenches. The filler material has data recesses over the data trenches and servo recesses over the servo trenches that must be removed to produce a planar media surface. A first planarization process is used to remove the data recesses and a second planarization process is used to remove the servo recesses.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 3, 2015
    Assignee: Seagate Technology LLC
    Inventors: Yuan Xu, Wei Hu, Justin Jia-Jen Hwu, Gene Gauzner, Koichi Wago, David Shiao-Min Kuo
  • Patent number: 8865929
    Abstract: A method for preparing a polymerizable monomer-dye compound is provided in which a monomer, a reactive dye, and base are combined under substantially anhydrous reaction conditions to form the polymerizable monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye to form the monomer-dye compound.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: October 21, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Yuan Xu, Charlie Chen, Charles A. Francis, Shane Mao, Hong Xue, Xining Zhang
  • Publication number: 20140308439
    Abstract: The embodiments disclose a method of protecting patterned magnetic materials of a stack, including depositing a thin continuous film of an inert material that is inert to the magnetic materials of a patterned stack upon which the thin continuous film is being deposited and forming a thin interim interface layer from the thin continuous film to protect top and sidewall areas of non-etched higher relief magnetic islands and magnetic film etched surfaces of the patterned stack from air exposure damage and damage from contact with backfilled materials.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Inventors: Zhaohui Fan, Yuan Xu, Justin Jia-Jen Hwu, Koichi Wago, David Shiao-Min Kuo
  • Publication number: 20140221609
    Abstract: Activation sites on the alpha subunit of sodium potassium ATPase have been discovered. It has also been discovered that certain antibodies that bind to the alpha subunit of sodium potassium ATPase dramatically increase enzyme activity. There has never before been a report of precise activation sites or drug interaction sites for sodium potassium ATPase. Certain methods have also been discovered for treating or preventing diseases associated with low sodium potassium ATPase activity by administering antibodies, antibody fragments and small molecules that bind to the activation sites on the alpha subunit of sodium potassium ATPase.
    Type: Application
    Filed: May 3, 2013
    Publication date: August 7, 2014
    Inventor: Kai Yuan Xu
  • Publication number: 20140200287
    Abstract: A method for preparing a polymerizable monomer-dye compound is provided in which a monomer, a reactive dye, and base are combined under substantially anhydrous reaction conditions to form the polymerizable monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye to form the monomer-dye compound.
    Type: Application
    Filed: July 17, 2012
    Publication date: July 17, 2014
    Inventors: Yuan Xu, Charlie Chen, Charles A. Francis, Shane Mao, Hong Xue, Xining Zhang
  • Publication number: 20140146667
    Abstract: Disclosed are a mobile terminal and a service processing method thereof, and a baseband processing chip are disclosed in the embodiments of this invention, wherein the service processing method of the mobile terminal comprises: in response to the situation that a first user card in an on-network state is required to process a high real time service, identifying whether PS domain data being received/transmitted in a PS domain service currently processed on a second user card is the critical data for maintaining the QoS level of the PS domain service, wherein the high real time service has higher requirement to real-time than the PS domain service, and the first user card and the second user card belong to the multiple user-cards inserted in the same mobile terminal; in response to the PS domain data being received/transmitted is non-critical data, suspending the processing of the PS domain service and processing the high real time service.
    Type: Application
    Filed: August 12, 2011
    Publication date: May 29, 2014
    Applicant: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
    Inventors: Zhi Zhang, Jiwu Liu, Xianliang Chen, Yuan Xu, Xichun Gao, Wenbo Lu, Yanshan Shi, Ma Zhang, Yingping Hu
  • Patent number: 8673541
    Abstract: Patterned substrates templates are provided, as well as methods comprising a combination of lithography and self-assembly techniques. The patterned substrates may comprise first and second patterns.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 18, 2014
    Assignee: Seagate Technology LLC
    Inventors: Shuaigang Xiao, XiaoMin Yang, Yuan Xu, Lei Wan
  • Publication number: 20140066540
    Abstract: Optically clear silicone hydrogel contact lenses are described that comprise a polymeric lens body that is the reaction product of a polymerizable composition comprising at least 25 wt. % of at least one hydroxyalkyl methacrylate; and at least 20 wt. % of at least one HEMA-compatible bifunctional polysiloxane comprising at least 6 siloxane groups and having an HLB value of at least 5 and/or a hydroxyl group content of at least 1 wt. %.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Hiroyuki Ueyama, Charlie Chen, Yuan Xu, Yuwen Liu, Ying Zheng, Paul Richardson, Prasad Dande
  • Patent number: 8658747
    Abstract: Ophthalmically acceptably wettable silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group, the first siloxane monomer having a number average molecular weight of from 400 daltons to 700 daltons; and a second siloxane monomer having a number average molecular weight greater than 7,000 daltons; wherein a total amount of siloxane monomers present in the polymerizable composition is from 30 unit parts to 50 unit parts; the lenses also include units derived from at least one hydrophilic amide monomer having one N-vinyl group that is present in the polymerizable composition in an amount from 30 to 60 unit parts.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: February 25, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Yuwen Liu, Charlie Chen, Charles A. Francis, Junhao Ge, Yuan Xu, Li Yao, Arthur Back, Ying Zheng
  • Publication number: 20140049746
    Abstract: Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one acrylate-containing siloxane monomer, at least one hydrophilic vinyl-containing monomer, and at least one vinyl-containing cross-linking agent. The contact lenses have ophthalmically-acceptable ionoflux values and surface wettability, and can be manufactured without the use of volatile organic solvents.
    Type: Application
    Filed: February 23, 2012
    Publication date: February 20, 2014
    Inventors: Yuwen Liu, Junhao Ge, Charlie Chen, Yuan Xu, Li Yao, Arthur Back, Charles A. Francis
  • Publication number: 20140024738
    Abstract: Silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including 30-60 unit parts by weight of a hydrophilic monomer(s) having one N-vinyl group, 10 to 50 unit parts by weight of 2-hydroxyethyl methacrylate (HEMA), and a first siloxane monomer component comprising a siloxane monomer of formula (1) as described herein or a siloxane monomer of formula (2) as described herein or a siloxane monomer of formula (3) as described herein or any combination thereof, where the total amount of siloxane monomer(s) present in the polymerizable composition is from 15 to 40 unit parts by weight. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    Type: Application
    Filed: February 23, 2012
    Publication date: January 23, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Charlie Chen, Yuwen Liu, Yuan Xu, Ying Zheng, Junhao Ge, Li Yao, Arthur Back