Patents by Inventor Ruoping ZHANG

Ruoping ZHANG 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).

  • LED display driver chip with analog and digital units and method for driving the same
    Patent number: 12243470
    Abstract: The present invention discloses a light-emitting diode (LED) display driver chip and use thereof, which relates to the cross technical field of an integrated circuit and LED display. Based on an existing chip architecture with dual-latch and PWM, the present invention proposes to apply a modulation method of mixing pulse amplitude modulation (PAM) and pulse width modulation (PWM) to a driver chip architecture, to replace an existing PWM control mode, so as to obtain better uniformity of the image grayscale in a small current mode; and use a DAC small current precision control circuit to obtain a more precise current output, to meet the application performance requirements of ultra-high-density LED display, which can process data to achieve a better driving effect, and meet the application performance requirements of ultra-high-density LED display.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: March 4, 2025
    Assignee: PURESEMI Co., Ltd.
    Inventors: Zhaoyu Jiang, Ruoping Zhang, Mao Zhao, Junjie Chen
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 12146003
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: November 16, 2023
    Date of Patent: November 19, 2024
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20240287137
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: November 16, 2023
    Publication date: August 29, 2024
    Inventors: KUNWAR SHAILUBHAI, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • LED DISPLAY DRIVER CHIP AND USE THEREOF
    Publication number: 20240221605
    Abstract: The present invention discloses a light-emitting diode (LED) display driver chip and use thereof, which relates to the cross technical field of an integrated circuit and LED display. Based on an existing chip architecture with dual-latch and PWM, the present invention proposes to apply a modulation method of mixing pulse amplitude modulation (PAM) and pulse width modulation (PWM) to a driver chip architecture, to replace an existing PWM control mode, so as to obtain better uniformity of the image grayscale in a small current mode; and use a DAC small current precision control circuit to obtain a more precise current output, to meet the application performance requirements of ultra-high-density LED display, which can process data to achieve a better driving effect, and meet the application performance requirements of ultra-high-density LED display.
    Type: Application
    Filed: April 21, 2022
    Publication date: July 4, 2024
    Inventors: Zhaoyu JIANG, Ruoping ZHANG, Mao ZHAO, Junjie CHEN
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 11834521
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: December 5, 2023
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20230340023
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 26, 2023
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 11319346
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: May 3, 2022
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20220119449
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: August 9, 2021
    Publication date: April 21, 2022
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Method and system for switched display of grayscale of multi-line scan led
    Patent number: 11295657
    Abstract: The present disclosure discloses a method and system for switched display of a grayscale of a multi-line scan light-emitting diode (LED), and relates to the field of LED display technology. In view of the problems in the prior art that a multi-line scan constant-current source chip has an insufficient refresh rate, a low grayscale level, and a poor low-grayscale effect, the present disclosure provides a method during the display of relatively high grayscales, a display cycle is scrambled. During the display of relatively low grayscales, the grayscales are combined. In the present disclosure, a relatively high refresh rate and a grayscale level can still be ensured in a case of a relatively large quantity of line scans. In addition, in the case of low-grayscale display, the problems such as low-grayscale speckles, slightly dark low-grayscale, and relatively poor low-grayscale linearity are resolved, thereby improving a picture display effect.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: April 5, 2022
    Assignee: PURESEMI CO., LTD.
    Inventors: Ruoping Zhang, Xiao Song, Zhaoyu Jiang, Shuzhuan He
  • METHOD AND SYSTEM FOR SWITCHED DISPLAY OF GRAYSCALE OF MULTI-LINE SCAN LED
    Publication number: 20210407367
    Abstract: The present disclosure discloses a method and system for switched display of a grayscale of a multi-line scan light-emitting diode (LED), and relates to the field of LED display technology. In view of the problems in the prior art that a multi-line scan constant-current source chip has an insufficient refresh rate, a low grayscale level, and a poor low-grayscale effect, the present disclosure provides a method during the display of relatively high grayscales, a display cycle is scrambled. During the display of relatively low grayscales, the grayscales are combined. In the present disclosure, a relatively high refresh rate and a grayscale level can still be ensured in a case of a relatively large quantity of line scans. In addition, in the case of low-grayscale display, the problems such as low-grayscale speckles, slightly dark low-grayscale, and relatively poor low-grayscale linearity are resolved, thereby improving a picture display effect.
    Type: Application
    Filed: March 31, 2020
    Publication date: December 30, 2021
    Inventors: Ruoping ZHANG, Xiao SONG, Zhaoyu JIANG, Shuzhuan HE
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20210403508
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: September 17, 2021
    Publication date: December 30, 2021
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 11142549
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: October 12, 2021
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20200399315
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: July 6, 2020
    Publication date: December 24, 2020
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 10745441
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: August 18, 2020
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Process of Preparing Guanylate Cyclase C Agonists
    Publication number: 20200040038
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 6, 2020
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jian, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • Process of preparing guanylate cyclase C agonisys
    Patent number: 10421787
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 24, 2019
    Assignee: Bausch Health Ireland Limited
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jian, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20190002501
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: June 5, 2018
    Publication date: January 3, 2019
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 10011637
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 3, 2018
    Assignee: SYNERGY PHARMACEUTICALS, INC.
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • PROCESS OF PREPARING GUANYLATE CYCLASE C AGONISYS
    Publication number: 20170129925
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Applicant: Synergy Pharmaceuticals Inc.
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jian, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • Process of preparing guanylate cyclase C agonists
    Patent number: 9580471
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: February 28, 2017
    Assignee: SYNERGY PHARMACEUTICALS, INC.
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng