Patents by Inventor Junjun Li

Junjun Li 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: 20200215353
    Abstract: A proton therapy system based on a compact superconducting cyclotron, including: a superconducting cyclotron system, an energy selection system, a beam transport system, a fixed therapy room subsystem and a rotating frame therapy subsystem; a fixed-energy proton beam extracted from a superconducting cyclotron of the superconducting cyclotron system is adjusted into a continuous and adjustable proton beam of 70 MeV to 200 MeV by the energy selection system, thus realizing a longitudinal adjustment for a proton range during treating a tumor, and the continuous and adjustable proton beam is respectively transmitted to the fixed therapy room subsystem and the rotating frame therapy subsystem by the beam transport system. The cooperative control of the superconducting cyclotron system, the energy selection system, the beam transport system and the therapy head realizes the transverse expansion of proton beams, thus realizing intensity modulated radiation therapy for the tumor.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Yuntao SONG, Jinxing ZHENG, Qingxi YANG, Yonghua CHEN, Hansheng FENG, Lu LIU, Junjun LI, Kaizhong DING, Gen CHEN, Pengyu WANG, Junsong SHEN, Mingzhun LEI, Jianghua WEI
  • Patent number: 10423985
    Abstract: A method for conversion attribution. The method includes obtaining a first identifier associated with a first device, obtaining a second identifier associated with a second device, bridging the first identifier and the second identifier based on a determination, made by a probabilistic classifier, that the first identifier and the second identifier are associated with a common user, and attributing, using the bridge, a conversion on a website accessed using the second device.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 24, 2019
    Assignee: Twitter, Inc.
    Inventors: Chinmoy Dutta, Santosh Kancha, Junjun Li, Wanchen Lu, Milind Mahajan, Sandeep Pandey, Xiaochuan Qin, Ameet Ranadive, Vibhor Rastogi, Shariq Rizvi, Abhishek Shrivastava, Yimin Wu, Lei Zhang, Ke Zhou
  • Patent number: 10375815
    Abstract: The invention discloses a method for adjusting particle orbit alignment by using a first harmonic in a cyclotron, including the following steps: generating a correcting magnetic field through eight coils symmetrically about the middle plane; arranging the positions of the coils and the currents applied, so that they can generate a first harmonic of which the amplitude and phase are arbitrarily adjustable; according to the actual eccentricity of the particle orbit, adjusting the magnitude and direction of the currents applied to the coils, and optimizing the alignment of the particle trajectory. By controlling an external DC power source of the accelerator and combining the real-time feedback of the beam detection of the accelerator, the invention may perform real-time adjustment during the debugging and operation of the accelerator, with high feasibility and operability; compared with traditional methods, the invention may achieve real-time adjustment during the debugging and operation of the accelerator.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 6, 2019
    Assignee: HEFEI CAS ION MEDICAL AND TECHNICAL DEVICES CO., LTD.
    Inventors: Yuntao Song, Kaizhong Ding, Jian Ge, Kai Zhou, Yonghua Chen, Junjun Li, Hansheng Feng, Kun Pei, Jian Zhou, Zhong Wang, Xinyu Chen
  • Publication number: 20190198347
    Abstract: Structures and methods are provided for nanosecond electrical pulse anneal processes. The method of forming an electrostatic discharge (ESD) N+/P+ structure includes forming an N+ diffusion on a substrate and a P+ diffusion on the substrate. The P+ diffusion is in electrical contact with the N+ diffusion. The method further includes forming a device between the N+ diffusion and the P+ diffusion. A method of annealing a structure or material includes applying an electrical pulse across an electrostatic discharge (ESD) N+/P+ structure for a plurality of nanoseconds.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Michel J. ABOU-KHALIL, Robert J. GAUTHIER, JR., Tom C. LEE, Junjun LI, Souvick MITRA, Christopher S. PUTNAM, Robert R. ROBISON
  • Publication number: 20190166681
    Abstract: The invention discloses a method for adjusting particle orbit alignment by using a first harmonic in a cyclotron, including the following steps: generating a correcting magnetic field through eight coils symmetrically about the middle plane; arranging the positions of the coils and the currents applied, so that they can generate a first harmonic of which the amplitude and phase are arbitrarily adjustable; according to the actual eccentricity of the particle orbit, adjusting the magnitude and direction of the currents applied to the coils, and optimizing the alignment of the particle trajectory. By controlling an external DC power source of the accelerator and combining the real-time feedback of the beam detection of the accelerator, the invention may perform real-time adjustment during the debugging and operation of the accelerator, with high feasibility and operability; compared with traditional methods, the invention may achieve real-time adjustment during the debugging and operation of the accelerator.
    Type: Application
    Filed: December 3, 2018
    Publication date: May 30, 2019
    Inventors: Yuntao SONG, Kaizhong DING, Jian GE, Kai ZHOU, Yonghua CHEN, Junjun LI, Hansheng FENG, Kun PEI, Jian ZHOU, Zhong WANG, Xinyu CHEN
  • Publication number: 20190157260
    Abstract: Electrostatic discharge (ESD) devices and methods of manufacture are provided. The method includes forming a plurality of fin structures and a mesa structure from semiconductor material. The method further includes forming an epitaxial material with doped regions on the mesa structure and forming gate material over at least the plurality of fin structures. The method further includes planarizing at least the gate material such that the gate material and the epitaxial material are of a same height. The method further includes forming contacts in electrical connection with respective ones of the doped regions of the epitaxial material.
    Type: Application
    Filed: January 24, 2019
    Publication date: May 23, 2019
    Inventors: Huiming BU, Junjun LI, Theodorus E. STANDAERT, Tenko YAMASHITA
  • Patent number: 10283374
    Abstract: Structures and methods are provided for nanosecond electrical pulse anneal processes. The method of forming an electrostatic discharge (ESD) N+/P+ structure includes forming an N+ diffusion on a substrate and a P+ diffusion on the substrate. The P+ diffusion is in electrical contact with the N+ diffusion. The method further includes forming a device between the N+ diffusion and the P+ diffusion. A method of annealing a structure or material includes applying an electrical pulse across an electrostatic discharge (ESD) N+/P+ structure for a plurality of nanoseconds.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 7, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michel J. Abou-Khalil, Robert J. Gauthier, Jr., Tom C. Lee, Junjun Li, Souvick Mitra, Christopher S. Putnam, Robert R. Robison
  • Patent number: 10229905
    Abstract: Electrostatic discharge (ESD) devices and methods of manufacture are provided. The method includes forming a plurality of fin structures and a mesa structure from semiconductor material. The method further includes forming an epitaxial material with doped regions on the mesa structure and forming gate material over at least the plurality of fin structures. The method further includes planarizing at least the gate material such that the gate material and the epitaxial material are of a same height. The method further includes forming contacts in electrical connection with respective ones of the doped regions of the epitaxial material.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 12, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Huiming Bu, Junjun Li, Theodorus E. Standaert, Tenko Yamashita
  • Patent number: 10224710
    Abstract: An electrostatic discharge protection circuit includes a power clamp device, a timing circuit including a first resistor, a first capacitor that is connected with the first resistor at a first node, and a second capacitor that is connected to a second node, a logic gate including a first input connected with the first node, a second input connected with the second node, and an output connected with the power clamp device, and a decoder device connected with a first address pin and a second address pin. The first address pin and the second address pin are used to detect the power clamp device switching on at time of power on and draining current.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 5, 2019
    Assignee: International Business Machines Corporation
    Inventors: John A. Fifield, Robert J. Gauthier, Jr., Junjun Li
  • Publication number: 20190054539
    Abstract: A preparation method for silver nanowires, including: dissolving a dispersant in a tribasic alcohol to get a viscous clear solution, dissolving the silver nitrate in a tribasic alcohol to get a clear solution; then, adding the silver nitrate solution to the dispersant solution for uniform mixing, finally, transferring the mixed solution into a reaction kettle, putting into an oven with a set temperature (170˜200° C.), and ending the reaction after a period of time. The mother solution of silver nanowires is diluted with alcohol and then centrifuged to separate organics, the novel silver nanowires with a uniform aspect ratio and nodes are obtained.
    Type: Application
    Filed: March 15, 2016
    Publication date: February 21, 2019
    Applicant: CHONGQING UNIVERSITY OF ARTS AND SCIENCES
    Inventors: Lu LI, Bitao LIU, Rong JIN, Shanyong CHEN, Junjun LI, Hengqing YAN
  • Patent number: 10186860
    Abstract: An electrostatic discharge protection circuit includes a transistor device, a first timing circuit including a first resistor and a first capacitor that is connected with the first resistor at a first node, a second timing circuit including a second resistor and a second capacitor that is connected with the second resistor at a second node, and a logic gate including a first input connected with the first node, a second input coupled with the second node, and an output connected with the transistor device.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: January 22, 2019
    Assignee: International Business Machines Corporation
    Inventors: John A. Fifield, Robert J. Gauthier, Jr., Junjun Li
  • Patent number: 10181463
    Abstract: An integrated circuit having a CML driver including a driver biasing network. A first output pad and a second output pad are connected to a voltage pad. A first driver is connected to the first output pad and the voltage pad. A second driver is connected to the second output pad and the voltage pad. A first ESD circuit is connected to the voltage pad, the first output pad, and the first driver. A second ESD circuit is connected to the voltage pad, the second output pad, and the second driver. The first ESD circuit biases the first driver toward a voltage of the voltage pad when an ESD event occurs at the first output pad, and the second ESD circuit biases the second driver toward the voltage of the voltage pad when an ESD event occurs at the second output pad.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: January 15, 2019
    Assignee: International Business Machines Corporation
    Inventors: James P. Di Sarro, Robert J. Gauthier, Nathan D. Jack, JunJun Li, Souvick Mitra
  • Patent number: 10163892
    Abstract: Silicon controlled rectifiers (SCR), methods of manufacture and design structures are disclosed herein. The method includes forming a common P-well on a buried insulator layer of a silicon on insulator (SOI) wafer. The method further includes forming a plurality of silicon controlled rectifiers (SCR) in the P-well such that N+ diffusion cathodes of each of the plurality of SCRs are coupled together by the common P-well.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 25, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Michel J. Abou-Khalil, Kiran V. Chatty, Robert J. Gauthier, Jr., Junjun Li
  • Patent number: 10157908
    Abstract: Electrostatic discharge (ESD) devices and methods of manufacture are provided. The method includes forming a plurality of fin structures and a mesa structure from semiconductor material. The method further includes forming an epitaxial material with doped regions on the mesa structure and forming gate material over at least the plurality of fin structures. The method further includes planarizing at least the gate material such that the gate material and the epitaxial material are of a same height. The method further includes forming contacts in electrical connection with respective ones of the doped regions of the epitaxial material.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 18, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Huiming Bu, Junjun Li, Theodorus E. Standaert, Tenko Yamashita
  • Publication number: 20180308708
    Abstract: Structures and methods are provided for nanosecond electrical pulse anneal processes. The method of forming an electrostatic discharge (ESD) N+/P+ structure includes forming an cathode on a substrate and a anode on the substrate. The anode is in electrical contact with the cathode. The method further includes forming a device between the cathode and the anode. A method of annealing a structure or material includes applying an electrical pulse across an electrostatic discharge (ESD) N+/P+ structure for a plurality of nanoseconds.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Michel J. ABOU-KHALIL, Robert J. GAUTHIER, JR., Tom C. LEE, Junjun LI, Souvick MITRA, Christopher S. PUTNAM, Robert R. ROBISON
  • Patent number: 10079487
    Abstract: An apparatus includes a device, a comparison circuit, and a switch. The device includes a first terminal coupled to a first power supply signal, and a second terminal coupled to a ground reference. The comparison circuit is configured to compare a first voltage level on the first power supply signal to a second voltage level of a second power supply signal, and enable the device in response to a determination that the first voltage level is greater than the second voltage level. The switch circuit is configured to couple a power supply terminal of the comparison circuit to the first power supply signal in response to determining that the first voltage level is greater than the second voltage level, and to couple the power supply terminal to the second power supply signal in response to determining that the first voltage level is less than the second voltage level.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 18, 2018
    Assignee: Apple Inc.
    Inventors: Xiaofeng Fan, Xin Y. Zhang, Junjun Li
  • Publication number: 20180251714
    Abstract: Provided is a method for producing a tissue-like construct having cultured cells organized in an aligned manner, especially, a cardiac tissue-like construct. The tissue-like construct prepared by this method is also provided. Further provided are a device for evaluating cellular electrophysiological functions and a method for evaluating cellular electrophysiological functions. Furthermore, a sheet-like cell culture scaffold is also provided.
    Type: Application
    Filed: October 16, 2015
    Publication date: September 6, 2018
    Inventors: Li Liu, Junjun Li, Itsunari Minami, Yong Chen, Norio Nakatsuji
  • Patent number: 10037895
    Abstract: Structures and methods are provided for nanosecond electrical pulse anneal processes. The method of forming an electrostatic discharge (ESD) N+/P+ structure includes forming an N+ diffusion on a substrate and a P+ diffusion on the substrate. The P+ diffusion is in electrical contact with the N+ diffusion. The method further includes forming a device between the N+ diffusion and the P+ diffusion. A method of annealing a structure or material includes applying an electrical pulse across an electrostatic discharge (ESD) N+/P+ structure for a plurality of nanoseconds.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: July 31, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michel J. Abou-Khalil, Robert J. Gauthier, Jr., Tom C. Lee, Junjun Li, Souvick Mitra, Christopher S. Putnam, Robert R. Robison
  • Patent number: 9954002
    Abstract: Aspects of the disclosure provide a multi-gate field effect transistor (FET) formed on a bulk substrate that includes an isolated fin and methods of forming the same. In one embodiment, the multi-gate FET includes: a plurality of silicon fin structures formed on the bulk substrate, each silicon fin structure including a body region, a source region, and a drain region; wherein a bottom portion the body region of each silicon fin structure includes a tipped shape to isolate the body region from the bulk substrate, and wherein the plurality of silicon fin structures are attached to the bulk substrate via at least a portion of the source region, or at least a portion of the drain region, or both.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: April 24, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Hongmei Li, Junjun Li
  • Publication number: 20180097358
    Abstract: An electrostatic discharge protection circuit includes a transistor device, a first timing circuit including a first resistor and a first capacitor that is connected with the first resistor at a first node, a second timing circuit including a second resistor and a second capacitor that is connected with the second resistor at a second node, and a logic gate including a first input connected with the first node, a second input coupled with the second node, and an output connected with the transistor device.
    Type: Application
    Filed: November 16, 2017
    Publication date: April 5, 2018
    Inventors: John A. Fifield, Robert J. Gauthier, JR., Junjun Li