Patents by Inventor Han Ting Chang

Han Ting Chang 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: 10510406
    Abstract: An operating method of the soft-verify write assist circuit of the resistive memory provides a voltage level applying step, a write operating step and a write voltage controlling step. The voltage level applying step is for applying a plurality of voltage levels to the reference voltage, the word line and the switching signal, respectively. The write operating step is for driving the memory cell to perform in a set process or a reset process via the first three-terminal switching element, the second three-terminal switching element and the soft-verify controlling unit during a write operation. The write voltage controlling step is for controlling the write voltage to be increased in the ramping cycle and decreased in the soft-verify cycle.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 17, 2019
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Meng-Fan Chang, Huan-Ting Lin, Tsung-Yuan Huang, Wei-Hao Chen, Han-Wen Hu
  • Patent number: 10485821
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 26, 2019
    Assignee: Vifor (International) Ltd.
    Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Jerry M. Buysse, Mingjun Liu
  • Patent number: 10435528
    Abstract: The present disclosure is directed to polymeric beads, methods of making the beads, and methods of using the beads as high-capacity anion exchange materials. In particular, the disclosure provides polymeric beads comprising a cross-linked polyamine and having a crush strength of about 250 g/bead or more. Preferably, the beads are substantially spherical. Also disclosed are polymeric beads comprising a cross-linked polyamine that has a substantial number of both strong base sites and weak base sites. Methods of using the polymeric beads in various industrial applications, such as groundwater remediation, radio waste management, municipal wastewater management, demineralization, toxin removal, mining, food refinery, research, agriculture, and the like, are also disclosed herein.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 8, 2019
    Assignee: AquaNano LLC
    Inventors: Han-Ting Chang, Mamadou Samba Diallo, Daniel Sanchez, Changjun Yu
  • Patent number: 10413757
    Abstract: Methods and systems for coupling ultrasound to the body, including to the head, are disclosed. The system is optionally configured to transmit ultrasound energy for transcranial ultrasound neuromodulation. Couplant assemblies are described that incorporate a semi-solid component that interfaces directly to the user's body and face of the ultrasound transducer. These couplant assemblies can be shaped, molded, or otherwise machined and, in some embodiments, contain one or more liquid, gel, or other non-solid component in an enclosed reservoir of the couplant assembly. Beneficial embodiments of ultrasound coupling assemblies described herein include those that conform to the contour of the user's body (e.g. the user's head for transcranial applications) and can easily be removed without leaving a messy residue. By having solid materials physically contacting the body, no residue is left that requires cleanup.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 17, 2019
    Assignee: CEREVAST MEDICAL, INC.
    Inventors: Tomokazu Sato, William J. Tyler, Philip Lamb, Daniel Z. Wetmore, Han-Ting Chang, Isy Goldwasser
  • Patent number: 10058567
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: August 28, 2018
    Assignee: Relypsa, Inc.
    Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen, Gerrit Klaerner, Jerry Buysse
  • Publication number: 20180133244
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen
  • Publication number: 20180125881
    Abstract: The present invention is directed to compositions of a linear polyol and a salt of a crosslinked cation exchange polymer comprising a fluoro group and an acid group. These compositions are useful to bind potassium in the gastrointestinal tract.
    Type: Application
    Filed: January 9, 2018
    Publication date: May 10, 2018
    Inventors: Detlef Albrecht, Michael Burdick, Han-Ting Chang, Dominique Charmot, Ramakrishnan Chidambaram, Eric Connor, Sherin Halfon, I-Zu Huang, Mingjun Liu, Jonathan Mills, Werner Strüver
  • Publication number: 20180072833
    Abstract: The present invention is directed to crosslinked cation exchange polymers comprising a fluoro group and an acid group and being a polymerization product of at least three monomers. Pharmaceutical compositions of these polymers are useful to bind potassium in the gastrointestinal tract.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Inventors: Han-Ting Chang, Dominique Charmot, Mingjun Liu, Werner Strüver
  • Publication number: 20170209481
    Abstract: The present invention is directed to methods of removing potassium or treating hyperkalemia by administering pharmaceutical compositions of crosslinked cation exchange polymers having beneficial physical properties, including combinations of particle size, particle shape, particle size distribution, viscosity, yield stress, compressibility, surface morphology, and/or swelling ratio.
    Type: Application
    Filed: December 16, 2016
    Publication date: July 27, 2017
    Inventors: Paul Mansky, Detlef Albrecht, Michael Burdick, Han-Ting Chang, Dominique Charmot, Eric Connor, Sherin Halfon, I-Zu Huang, Mingjun Liu, Werner Strüver
  • Publication number: 20170165292
    Abstract: The present invention is directed to crosslinked cation exchange polymers comprising a fluoro group and an acid group, pharmaceutical compositions of these polymers, compositions of a linear polyol and a salt of such polymer. Crosslinked cation exchange polymers having beneficial physical properties, including combinations of particle size, particle shape, particle size distribution, viscosity, yield stress, compressibility, surface morphology, and/or swelling ratio are also described. These polymers and compositions are useful to bind potassium in the gastrointestinal tract.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 15, 2017
    Inventors: Paul Mansky, Detlef Albrecht, Michael Burdick, Han-Ting Chang, Dominique Charmot, Eric Connor, Sherin Halfon, I-Zu Huang, Mingjun Liu, Ramakrishnan Chidambaram, Jonathan Mills, Werner Strüver
  • Publication number: 20170037010
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, A, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: February 19, 2016
    Publication date: February 9, 2017
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20160317572
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Application
    Filed: July 14, 2016
    Publication date: November 3, 2016
    Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Jerry M. Buysse, Mingjun Liu
  • Publication number: 20160193247
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen, Gerrit Klaerner, Jerry Buysse
  • Patent number: 9301951
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, A, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: April 5, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 9301974
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 5, 2016
    Assignee: Relypsa, Inc.
    Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen
  • Publication number: 20160082039
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Mingjun Liu
  • Patent number: 9289430
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 22, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 9289429
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: March 22, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 9278102
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 8, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20150164904
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 18, 2015
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte