Patents by Inventor Zhen Gu

Zhen Gu 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: 20230350808
    Abstract: Methods, systems, and devices for logical-to-physical (L2P) mapping compression techniques are described. A memory system may use an L2P mapping to map logical addresses to physical addresses of the memory system. The L2P mapping may be a hierarchical L2P mapping divided into multiple levels or subsets that are used to identify a physical address corresponding to a logical address. The memory system may write data to a set of physical addresses that are consecutively indexed and may set a flag in an entry of a second-level of the L2P mapping (e.g., of a three-level L2P mapping) to indicate that the entry is associated with a starting physical address of the consecutively indexed physical addresses. The memory system may subsequently read the data starting at the starting physical address based on the flag (e.g., bypassing reading an entry of a lowest-level of the L2P mapping to determine the physical address).
    Type: Application
    Filed: March 16, 2021
    Publication date: November 2, 2023
    Inventors: Xing Wang, Liping Xu, Xu Zhang, Zhen Gu
  • Patent number: 11786713
    Abstract: Disclosed herein are microneedle devices, kits comprising the microneedle devices, and methods of using the microneedle devices. Specifically, disclosed is a device for transport of a material across a biological barrier of a subject comprising: a plurality of microneedles each having a base end and a tip, with at least one pathway disposed at or between the base end and the tip; a substrate to which the base ends of the microneedles are attached or integrated; and at least one reservoir which is in connection with the base ends of the microneedles array, wherein the reservoir comprises an agent delivery system, wherein the agent delivery system comprises an agent to be transported across the biological barrier, or a means for producing an agent to be transported across the biological barrier, and a means for detecting a physiological signal from the recipient.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: October 17, 2023
    Assignee: NORTH CAROLINA STATE UNIVERSITY
    Inventors: Zhen Gu, Yanqi Ye
  • Patent number: 11793093
    Abstract: A self-aligned memory device includes a conductive bottom plug disposed within an insulating layer and having a coplanar top surface, a self-aligned planar bottom electrode disposed upon the coplanar top surface and having a thickness within a range of 50 Angstroms to 200 Angstroms, a planar switching material layer disposed upon the self-aligned planar bottom electrode, a planar active metal material layer disposed upon the planar switching material layer and a planar top electrode disposed above the planar active metal material layer, wherein the self-aligned planar bottom electrode, the planar switching material layer, the planar active metal material layer, and the planar top electrode form a pillar-like structure above the insulating layer.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: October 17, 2023
    Assignee: CROSSBAR, INC.
    Inventors: Sung-Hyun Jo, Sundar Narayanan, Zhen Gu
  • Publication number: 20230305572
    Abstract: A method for drivable area detection and autonomous obstacle avoidance of unmanned haulage equipment in deep confined spaces is disclosed, which includes the following steps: acquiring 3D point cloud data of a roadway; computing a 2D image drivable area of the coal mine roadway; acquiring a 3D point cloud drivable area of the coal mine roadway; establishing a 2D grid map and a risk map, and performing autonomous obstacle avoidance path planning by using an improved particle swarm path planning method designed for deep confined roadways; and acquiring an optimal end point to be selected of a driving path by using a greedy strategy, and enabling an unmanned auxiliary haulage vehicle to drive according to the optimal end point and an optimal path.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 28, 2023
    Inventors: Chunyu YANG, Zhencai ZHU, Yidong ZHANG, Xin ZHANG, Zhen GU
  • Patent number: 11760785
    Abstract: Disclosed herein is a glucose-responsive insulin delivery system based on the interaction between the glucose-modified insulin and glucose transporters (GLUTs) on erythrocytes (or red blood cells, RBCs). After being conjugated with a competitive inhibitor of a glucose transporter, insulin can efficiently bind to RBC membranes. The binding is reversible in the setting of hyperglycemia, resulting in fast release of insulin and subsequent drop of blood glucose (BG) level in vivo.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 19, 2023
    Assignee: NORTH CAROLINA STATE UNIVERSITY
    Inventors: Zhen Gu, Jinqiang Wang
  • Publication number: 20230285559
    Abstract: A therapeutic hydrogel material is disclosed for the delivery of CAR-T cells that allows their distribution in the tumor resection recess, cavity, or void in combination with platelets decorated with the anti-programmed death-ligand 1 (PDL1) blocking antibody (aPDL1). The delivered hydrogel material acts as a reservoir for both CAR-T cells and platelet-bound aPDL1. Furthermore, inflammation occurring during the surgical wound healing triggers the release of platelet-derived microparticles containing the aPDL1. Cells delivered by the engineered hydrogel show significant control of local and distant tumor recurrence without causing toxic effects. In some embodiments, nanoparticles containing cytokines are also loaded in the therapeutic hydrogel material to maintain the activity and proliferation ability of CAR-T cells.
    Type: Application
    Filed: July 22, 2021
    Publication date: September 14, 2023
    Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, NORTH CAROLINA STATE UNIVERSITY
    Inventors: Zhen Gu, Quanyin Hu, Hongjun Li
  • Patent number: 11752098
    Abstract: Disclosed are compositions and methods for microneedle patches comprising diblock copolymer micelles designed for pH cascade and H2O2 triggered insulin delivery.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 12, 2023
    Assignee: North Carolina State University
    Inventors: Zhen Gu, Jinqiang Wang
  • Patent number: 11735610
    Abstract: The disclosure discloses a global shutter CMOS image sensor, which adopts non-uniform storage diffusion region doping to reduce the junction leakage at storage points, so as to ensure that with the increase of the depth of photodiodes and the increase of pixels, all carriers in rows read subsequently can be transferred to storage diffusion regions, the loss of the carriers in the storage diffusion regions is not caused when a global shutter transistor is turned on, and the carriers can be completely transferred from the storage diffusion regions to floating diffusion regions through second transfer transistors even if the number of rows of pixel units increases during reading-out row by row. The disclosure further discloses a method for making the global shutter CMOS image sensor.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: August 22, 2023
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Zhi Tian, Zhen Gu, Hua Shao, Haoyu Chen
  • Patent number: 11730765
    Abstract: The present disclosure provides compositions and methods for targeted delivery of therapeutic agents. The present disclosure further provides methods for treating or preventing the metastasis or recurrence of a cancer using platelets loaded with a therapeutic agent (for example, an immunotherapeutic agent).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: August 22, 2023
    Assignee: North Carolina State University
    Inventors: Zhen Gu, Chao Wang
  • Publication number: 20230240981
    Abstract: A therapeutic hybrid microneedle patch mimics the inherent counter-regulatory effects of ?-cells and ?-cells for blood glucose management by dynamically releasing insulin or glucagon contained within the microneedles of the therapeutic hybrid microneedle patch. The two types of microneedles in the therapeutic hybrid microneedle patch share a co-polymerized matrix but comprise different ratios of the key monomers to be ‘dually-responsive’ to both hyper- and hypoglycemic glucose conditions. In a type 1 diabetic mouse model, the therapeutic hybrid microneedle patch effectively controls hyperglycemia while minimizing the occurrence of hypoglycemia in the setting of insulin therapy and simulated delayed meal or insulin overdose. In other embodiments, multiple patches are applied to achieve similar results.
    Type: Application
    Filed: June 29, 2021
    Publication date: August 3, 2023
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Zhen Gu, Zejun Wang
  • Publication number: 20230241239
    Abstract: A retinoic acid modified lysosome targeting chimera (LYTAC) molecule, a preparation method and applications thereof are provided. A structural formula of the retinoic acid modified LYTAC molecule is shown as following Formula I, in which, n represents a molecular weight of polyethylene glycol (PEG), n is in a range of 60 to 5000, R is one of an antibody, a polypeptide and a micromolecule compound targeting a targeted protein. The retinoic acid modified LYTAC molecule can be applied to targeted protein degradation and preparation of tumor cell activity inhibitors. Retinoic acid has high biosafety, is easy to obtain and modify, can be coupled with any antibody, polypeptide or micromolecule that targets the binding protein receptor to realize lysosomal degradation of extracellular or membrane proteins, can be used to prepare tumor cell activity inhibitors and to treat tumors, inflammation and other diseases, and has a broad application prospect.
    Type: Application
    Filed: September 16, 2022
    Publication date: August 3, 2023
    Inventors: LONGGUANG TANG, KESONG PENG, XIAOLI SUN, SONGMIN YING, ZHEN GU, CHAORAN JI
  • Publication number: 20230218507
    Abstract: Chimeric antigen receptor T cells (CAR T) therapy reached a milestone in eradicating B-cell malignancies, but beneficial effects in solid tumors are not obtained yet. A porous microneedle patch is disclosed that carries CAR T cells to solid tumors (or other cell types). The device is a honeycomb-like porous microneedle patch that accommodates CAR T cells and allows in situ penetration-media seeding of CAR T cells within post-surgical resection of solid tumors. CAR T cells loaded in the pores of the microneedle tips were readily escorted to the tumor in an evenly scattered manner without losing their activity. Such microneedle-mediated local delivery enhanced infiltration and immune stimulation of CAR T cells as compared to direct intratumoral injection. This tailorable patch offers a transformative platform for scattered seeding of living cells for treating a variety of diseases. Other cell types may be loaded into the porous microneedles.
    Type: Application
    Filed: June 9, 2021
    Publication date: July 13, 2023
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Zhen Gu, Hongjun Li
  • Patent number: 11697007
    Abstract: The present disclosure relates to microneedle devices and methods for treating a disease (for example, diabetes) using a degradable cross-linked gel for self-regulated delivery of a therapeutic agent (for example, insulin).
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 11, 2023
    Assignee: NORTH CAROLINA STATE UNIVERSITY
    Inventors: Zhen Gu, Jinqiang Wang, Yanqi Ye
  • Patent number: 11695027
    Abstract: The present invention provides a semiconductor structure for forming a CMOS image sensor. The semiconductor structure includes at least a photodiode formed in the substrate for collecting photoelectrons, and the photodiode has a pinning layer, a first doped region and a second doped region in order from top to bottom in a height direction of the substrate. The semiconductor structure further includes a third doped region located in the substrate corresponding to a laterally extending region of the second doped region. The first doped region has an ion doping concentration greater than the ion doping concentration of the second doped region, the ion doping concentration of the second doped region is greater than the ion doping concentration of the third doped region, and the third doped region is in contact with the second doped region after diffusion. The present invention also provides a method of manufacturing the above-described semiconductor structure.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: July 4, 2023
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Zhen Gu, Zhi Tian, Qiwei Wang, Haoyu Chen
  • Publication number: 20230201128
    Abstract: The method of treating obesity-induced glucose intolerance and liver fibrosis includes administering to a patient a therapeutically effective amount of a substance for inhibiting the Notch signaling pathway of the patient. The substance is formed from encapsulated ?-secretase inhibitor (GSI) nanoparticles. As a non-limiting example, each nanoparticle may be formed from a GSI, such as dibenzazepine (a bioavailable GSI) encapsulated in poly(lactic co-glycolic acid) (PLGA). The encapsulated GSI nanoparticles (GSI NPs) provide localized and effective inhibition of hepatic Notch signaling, thus improving obesity-induced glucose tolerance and liver fibrosis without intestinal side effects.
    Type: Application
    Filed: May 19, 2021
    Publication date: June 29, 2023
    Inventors: Utpal PAJVANI, Li QIANG, Zhen GU
  • Patent number: 11676987
    Abstract: The present invention provides a semiconductor structure for forming a CMOS image sensor. The semiconductor structure includes at least a photodiode formed in the substrate for collecting photoelectrons, and the photodiode has a pinning layer, a first doped region and a second doped region in order from top to bottom in a height direction of the substrate. The semiconductor structure further includes a third doped region located in the substrate corresponding to a laterally extending region of the second doped region. The first doped region has an ion doping concentration greater than the ion doping concentration of the second doped region, the ion doping concentration of the second doped region is greater than the ion doping concentration of the third doped region, and the third doped region is in contact with the second doped region after diffusion. The present invention also provides a method of manufacturing the above-described semiconductor structure.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: June 13, 2023
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Zhen Gu, Zhi Tian, Qiwei Wang, Haoyu Chen
  • Publication number: 20230126077
    Abstract: Disclosed herein is a particle containing an inner liposomal vesicle (ILV) encapsulating a therapeutic agent; an outer liposomal vesicle (OLV) encapsulating the ILV; a membrane fusion-promoting agent; and a pH-altering agent. Also disclosed are methods of delivering a therapeutic agent to a subject comprising: a) providing a herein disclosed particle b) triggering ILV and OLV fusion; and c) releasing the therapeutic agent outside of the OLV. Also disclosed are methods for treating a disease in a subject in need thereof comprising: administering to a subject a herein disclosed particle. Also disclosed are methods to release insulin to an environment comprising increased glucose levels, the method comprising exposing to the environment a herein disclosed particle.
    Type: Application
    Filed: July 13, 2022
    Publication date: April 27, 2023
    Inventors: Zhen GU, Zhaowei CHEN
  • Publication number: 20230107371
    Abstract: The disclosure discloses a global shutter CMOS image sensor, which adopts non-uniform storage diffusion region doping to reduce the junction leakage at storage points, so as to ensure that with the increase of the depth of photodiodes and the increase of pixels, all carriers in rows read subsequently can be transferred to storage diffusion regions, the loss of the carriers in the storage diffusion regions is not caused when a global shutter transistor is turned on, and the carriers can be completely transferred from the storage diffusion regions to floating diffusion regions through second transfer transistors even if the number of rows of pixel units increases during reading-out row by row. The disclosure further discloses a method for making the global shutter CMOS image sensor.
    Type: Application
    Filed: December 9, 2022
    Publication date: April 6, 2023
    Applicant: Shanghai Huali Microelectronics Corporation
    Inventors: Zhi Tian, Zhen Gu, Hua Shao, Haoyu Chen
  • Publication number: 20230010556
    Abstract: A cold atmospheric plasma (CAP)-mediated ICB therapy/delivery device are disclosed herein that employs a patch having microneedles that are used to deliver the CAP transdermally along with an immune checkpoint inhibitor for enhancing transdermal treatment efficacy. The hollow-structured microneedle patch can facilitate the transportation of CAP through the skin, causing tumor cell death. The release of cancer antigens then promotes the maturation of dendritic cells in the tumor-draining lymph nodes, subsequently initiating the T cell-mediated immune response. Anti-PDL1 antibody (aPDL1), an immune checkpoint inhibitor (or other immune checkpoint inhibitors), released from the microneedle patch (in some embodiments) further augments the anti-tumor immunity. The transdermal combinational CAP and ICB therapy inhibits tumor growth for both primary tumors as well as distant tumors, with prolonged survival in the tumor-bearing mice. Such results should translate to other species.
    Type: Application
    Filed: December 10, 2020
    Publication date: January 12, 2023
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Zhen Gu, Richard E. Wirz, Guojun Chen, Zhitong Chen
  • Publication number: 20220320431
    Abstract: Two-terminal resistive switching devices can have a switching layer in which a filament forms and deforms to varying degrees to represent distinct logical states. This switching layer can be formed having a varying ratio, X, of nitrogen to silicon at various strata of the switching layer. Such can result in a two-terminal memory device with improved stability and other characteristics.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Sundar Narayanan, Yunyu Wang, Zhen Gu, Wee Chen Gan, Wei Ti Lee, Xiesen Yang