Patents by Inventor Weifeng Zhang

Weifeng 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).

  • Publication number: 20250134506
    Abstract: A fistula blocking stent, a stent delivering system, and a method of delivering a fistula blocking stent are provided. The fistula blocking stent is configured to seal a fistula formed between a first lumen and a second lumen, which includes a first fixing stent in a shape of a hollow tube, the first fixing stent having a proximal end, a distal end, and a first tube extending axially between the proximal end and the distal end, the first fixing stent being provided in the first lumen; a second fixing stent provided in the fistula and the second lumen, the second fixing stent having a first end and a second end opposite to the first end, the first end being connected to the first fixing stent; and a barrier film provided on at least one of the first fixing stent and the second fixing stent and configured to seal the fistula.
    Type: Application
    Filed: June 28, 2024
    Publication date: May 1, 2025
    Inventors: Yun Wang, Jiwang Wang, Guoxin Zhang, Weifeng Zhang, Lurong Li, Jianyu Wei, Zhenghua Shen, Changqing Li, Derong Leng
  • Publication number: 20250125219
    Abstract: Disclosed are a heat sink fixing structure and a board-level heat dissipation apparatus. The heat sink fixing structure comprises a support structure and a floating structure; the support structure comprises a first support member for providing support for the semiconductor component and a second support member spaced apart from the first support member; the heat sink is arranged corresponding to the semiconductor component and is connected to the second support member in a floating configuration, making it adaptable to semiconductor components of different heights and tolerances, effectively reducing the temperature of semiconductor components and improving long-term reliability. By using the first and second support members to respectively support the heat sink and semiconductor components, the number of openings near the semiconductor component on the integrated circuit board is reduced, thereby reducing the wiring difficulty of the integrated circuit board and reducing the stress it bears.
    Type: Application
    Filed: July 11, 2022
    Publication date: April 17, 2025
    Inventors: Weifeng ZHANG, Xianming ZHANG, Zhida WANG, Xijie WU, Yanhua GUO
  • Publication number: 20250111217
    Abstract: The present disclosure relates to a processing in memory (PIM) enabled device for executing a neural network model. The PIM enabled device comprises a memory block assembly comprising a first array of memory blocks, a second array of memory blocks adjacent to the first array of memory blocks, a plurality of first data links associated with the first array of memory blocks and the second array of memory blocks, wherein each data link of the plurality of first data links communicatively couples two corresponding memory blocks of which are from the first array of memory blocks and the second array of memory blocks respectively, and a second data link communicatively coupled to the plurality of first data links. The data from a first memory block of the first array of memory blocks can be transferable to a second memory block of the second array of memory blocks via the plurality of first data links and the second data link.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Inventors: Minxuan ZHOU, Weifeng ZHANG, Guoyang CHEN
  • Patent number: 12245768
    Abstract: Disclosed is an occluding stent. The occluding stent includes a distal flange occluding body, a proximal flange occluding body, and a connection portion. External surfaces of the distal flange occluding body and the proximal flange occluding body are both provided with a coating. An external surface of the connection portion is wholly or partially provided with a coating. A first occluding coating is provided between the distal flange occluding body and an inner cavity of the connection portion. The present invention overcomes the defect that the existing occluder device for closure of an esophagobronchial fistula is harmful to surrounding tissues, makes the device retractable, enhances the safety of the device, and improves life and treatment of patients. A new safe and effective treatment method for an esophagobronchial fistula is provided.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 11, 2025
    Assignees: Micro-Tech (Nanjing) Co., Ltd., Jiangsu Province Hospital
    Inventors: Guoxin Zhang, Huaiming Sang, Jianyu Wei, Yun Wang, Lurong Li, Weifeng Zhang, Zhenghua Shen, Changqing Li, Derong Leng
  • Patent number: 12205019
    Abstract: The present disclosure relates to a processing in memory (PIM) enabled device for executing a neural network model. The PIM enabled device comprises a memory block assembly comprising a first array of memory blocks, a second array of memory blocks adjacent to the first array of memory blocks, a plurality of first data links associated with the first array of memory blocks and the second array of memory blocks, wherein each data link of the plurality of first data links communicatively couples two corresponding memory blocks of which are from the first array of memory blocks and the second array of memory blocks respectively, and a second data link communicatively coupled to the plurality of first data links. The data from a first memory block of the first array of memory blocks can be transferable to a second memory block of the second array of memory blocks via the plurality of first data links and the second data link.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 21, 2025
    Assignee: Alibaba Group Holding Limited
    Inventors: Minxuan Zhou, Weifeng Zhang, Guoyang Chen
  • Publication number: 20240421762
    Abstract: Disclosed are a power device and a photovoltaic power generation device. The power device comprises a case, a first power board, and a second power board, the first power board is arranged in the case, and a first boosting module and an inverter module are arranged on the first power board; the second power board is arranged in the case, the second power board is electrically connected to the first power board, and a second boosting module is arranged on the second power board. According to the technical solution of the present invention, the rated power generation power of the photovoltaic power generation device can be increased, and the flexibility for clients is improved.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 19, 2024
    Inventors: Yonghong LI, Yongfu WU, Wenhao LI, An’an XU, Jie WU, Weifeng ZHANG, Lei SHI
  • Patent number: 12099904
    Abstract: Aspects of the invention include converting an artificial intelligence (AI) model generated in a first framework to a uniform exchange formatted model by engaging a master table to retrieve instructions for converting from the AI model to the uniform exchange formatted model in accordance with the first framework. The uniform exchange formatted model in compiled by engaging the master table to retrieve instructions for compiling the uniform exchange formatted model in accordance with the first framework. Data is received as an input to the compiled uniform exchange formatted model and an output is generated by engaging the master table to retrieve instructions for generating the output in accordance with the first framework.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: September 24, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Li Cao, WeiFeng Zhang, Fei Fei Li, Ren Jie Feng, Han Su, Zhan Peng Huo, Zhong Hao Wang
  • Publication number: 20240242328
    Abstract: A computing system includes an automatic optical inspection (AOI) and a database that stores images of a plurality of visual inspection (VI) training boards. Each of the visual inspection (VI) training boards includes at least one intended defect. The AOI system includes an artificial intelligence (AI) algorithm implemented in an automatic optical inspection (AOI) system. The AOI system trains the AI algorithm to learn at least one target defect based on the at least one intended defect including in the plurality of VI training boards, analyzes a production printed circuit board (PCB), and determines either a non-defective PCB in response to the AI algorithm determining the production PCB excludes the at least one target defect, or a defective PCB in response to the AI algorithm determining the production PCB includes at least one target defect.
    Type: Application
    Filed: January 17, 2023
    Publication date: July 18, 2024
    Inventors: YanLong Hou, WeiFeng Zhang, Wei Wang, Jiayu Zheng
  • Publication number: 20240176845
    Abstract: Methods and devices, the method including receiving a matrix of a neural network model; classifying at least a portion of the matrix as a first section based on a first distribution pattern of non-zero elements of the portion of the matrix; and identifying memory addresses of the non-zero elements in the first section of the matrix for loading, according to a first order determined based on the first distribution pattern, the non-zero elements in the first section into one or more vector registers.
    Type: Application
    Filed: February 6, 2024
    Publication date: May 30, 2024
    Inventors: Guoyang CHEN, Yu PU, Yongzhi ZHANG, Weifeng ZHANG, Yuan XIE
  • Publication number: 20240164789
    Abstract: Disclosed is an occluding stent. The occluding stent includes a distal flange occluding body, a proximal flange occluding body, and a connection portion. External surfaces of the distal flange occluding body and the proximal flange occluding body are both provided with a coating. An external surface of the connection portion is wholly or partially provided with a coating. A first occluding coating is provided between the distal flange occluding body and an inner cavity of the connection portion. The present application overcomes the defect that the existing occluder device for closure of an esophagobronchial fistula is harmful to surrounding tissues, makes the device retractable, enhances the safety of the device, and improves life and treatment of patients. A new safe and effective treatment method for an esophagobronchial fistula is provided.
    Type: Application
    Filed: January 30, 2024
    Publication date: May 23, 2024
    Inventors: Guoxin ZHANG, Jiwang WANG, Jianyu WEI, Yun WANG, Lurong LI, Weifeng ZHANG, Huaiming SANG, Zhenghua SHEN, Changqing LI, Derong LENG
  • Publication number: 20240160933
    Abstract: Methods and apparatus for reducing a size of a neural network model, the method including: compressing data of the neural network model; identifying structure information of a vector register, wherein the structure information includes a number of registers included in the vector register; comparing a number of elements in the compressed data with a first condition, wherein the first condition is determined based on the number of registers in the vector register; and in response to the number of elements satisfying the first condition, associating the compressed data with the vector register to enable loading the compressed data to the vector register.
    Type: Application
    Filed: January 23, 2024
    Publication date: May 16, 2024
    Inventors: Weifeng ZHANG, Guoyang CHEN, Yu PU, Yongzhi ZHANG, Yuan XIE
  • Patent number: 11921814
    Abstract: Methods and devices, the method including receiving a matrix of a neural network model; classifying at least a portion of the matrix as a first section based on a first distribution pattern of non-zero elements of the portion of the matrix; and identifying memory addresses of the non-zero elements in the first section of the matrix for loading, according to a first order determined based on the first distribution pattern, the non-zero elements in the first section into one or more vector registers.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: March 5, 2024
    Assignee: Alibaba Group Holding Limited
    Inventors: Guoyang Chen, Yu Pu, Yongzhi Zhang, Weifeng Zhang, Yuan Xie
  • Patent number: 11915138
    Abstract: Methods and apparatus for reducing a size of a neural network model, the method including: compressing data of the neural network model; identifying structure information of a vector register, wherein the structure information includes a number of registers included in the vector register; comparing a number of elements in the compressed data with a first condition, wherein the first condition is determined based on the number of registers in the vector register; and in response to the number of elements satisfying the first condition, associating the compressed data with the vector register to enable loading the compressed data to the vector register.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: February 27, 2024
    Assignee: Alibaba Group Holding Limited
    Inventors: Weifeng Zhang, Guoyang Chen, Yu Pu, Yongzhi Zhang, Yuan Xie
  • Publication number: 20230397383
    Abstract: A heat dissipation assembly and an electric energy conversion apparatus are disclosed according to the present application. The heat dissipation assembly comprises a side cover connected to the electric energy conversion apparatus and an air outlet cover, a heat dissipation passage is formed by enclosure of the side cover and one side surface of the electric energy conversion apparatus, the side cover is provided with an air inlet in communication with the heat dissipation passage; the air outlet cover is arranged at the top of the electric energy conversion apparatus and partially connected with the side cover, and an air outlet space is formed by enclosure of the air outlet cover, the air outlet space is in communication with the heat dissipation passage, the air outlet cover is provided with an air outlet at an outer peripheral side of the air outlet cover away from the electric energy conversion apparatus.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 7, 2023
    Applicant: Sungrow Power Supply Co., Ltd.
    Inventors: Rui Fang, Weifeng Zhang, Ye Yang, Jie Zhou
  • Patent number: 11773025
    Abstract: Provided is a red mud-based composite calcium ferrite and a preparation method and use thereof. The preparation method of the red mud-based composite calcium ferrite includes the following steps: mixing red mud and a calcium source, and roasting an obtained mixture in an oxygen-containing atmosphere to obtain the red mud-based composite calcium ferrite; where the calcium source is selected from the group consisting of lime and calcium carbonate. In the present disclosure, the composite calcium ferrite is prepared using a solid waste red mud, with a greatly reduced cost of raw materials; on the other hand, compared with traditional calcium ferrite, the composite calcium ferrite mainly has phase structures of CaFe2O4, Ca2FeAlO5, and Ca2Fe2O5. Therefore, the composite calcium ferrite has a lower melting point, a higher lime dissolution efficiency, and better fluxing and dephosphorization effects during primary smelting and refining of molten steel, and has broad prospects for use in industry.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: October 3, 2023
    Assignee: University of Science and Technology Beijing
    Inventors: Yanling Zhang, Zheng Zhao, Weifeng Zhang, Kan Yu, Yao Zhang
  • Patent number: 11696427
    Abstract: A pressing device includes a screw body. The screw body includes a screw head that comprises a driver interface. The screw body also includes a screw shaft that comprises a screw tip opposite the screw head with respect to the screw shaft, exterior spiral threads between the screw head and screw tip, and an interior cavity with an opening at the screw tip. The pressing device also includes a pin partially inserted into the interior cavity. The pin comprises a first pin end inserted into the interior cavity, a pin shaft that is connected to the first pin end, and a second pin end that is connected to the pin shaft and that is exterior to the interior cavity. Applying a force to the second pin end in a direction towards the screw head causes the pin shaft to advance into to interior cavity.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: July 4, 2023
    Assignee: International Business Machines Corporation
    Inventors: XiYuan Yin, Tao Song, Qiuyi Yu, Rui Ma, WeiFeng Zhang
  • Patent number: 11679528
    Abstract: The present disclosure relates to the technical field of solid waste recycling and fabricated buildings, and provides a solid waste large-mixing-amount concrete prefabricated laminated slab and a preparation method thereof. The solid waste large-mixing-amount concrete prefabricated laminated slab provided by the present disclosure comprises a prefabricated layer and a laminated layer. Transverse grooves and longitudinal grooves are formed in the surface of the prefabricated layer. During application, the grooves can be used for erecting pipelines, the contact area of the prefabricated layer and the laminated layer can also be increased, the combined effect of new concrete and old concrete is improved, the integrity of a floor slab is enhanced, and the effect of improving the overall stress capacity of the floor slab is achieved.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: June 20, 2023
    Inventors: Xiaowei Gu, Xinlong Zhang, Hao Wang, Yuxin Gao, Xiaohui Li, Weifeng Zhang, Zhangmiao Li, Jianping Liu, Qingdong Liu, Baokuan Ning, Peng Liu
  • Patent number: 11674192
    Abstract: A method of making steel by deeply dephosphorization in a hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in a converter includes the following steps: putting an efficient dephosphorization agent into the hot metal tank in advance, and conducting dephosphorization during blast furnace tapping and transportation of blast furnace hot metal by the hot metal tank to obtain semi-steel with [P] less than 0.04 wt. % and [C] greater than or equal to 3.5 wt. %; and removing dephosphorization slag, and pouring the semi-steel into the converter for decarburization to obtain molten steel. The efficient dephosphorization agent includes iron oxide scale, lime, and composite calcium ferrite. According to the method, a phosphorus content of the blast furnace hot metal is reduced to be less than or equal to 0.04 wt. % through the efficient dephosphorization agent.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: June 13, 2023
    Assignee: University of Science and Technology Beijing
    Inventors: Yanling Zhang, Zheng Zhao, Weifeng Zhang, Zhonghua Zhan
  • Patent number: 11669443
    Abstract: The present disclosure relates to a method for scheduling a computation graph on a processing in memory (PIM) enabled device comprising a memory block assembly. The method comprises allocating a first node of the computation graph on a first memory block of a first array of memory blocks in the memory block assembly and allocating a second node of the computation graph on a second memory block of a second array of memory blocks in the memory block assembly, wherein output data of the first node is used for executing the second node. The memory block assembly can be configured to support data transfer from the first memory block to the second memory block via an internal data coupling in the memory block assembly.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 6, 2023
    Assignee: Alibaba Group Holding Limited
    Inventors: Minxuan Zhou, Guoyang Chen, Weifeng Zhang
  • Publication number: 20230121123
    Abstract: A method of making steel by deeply dephosphorization in a hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in a converter includes the following steps: putting an efficient dephosphorization agent into the hot metal tank in advance, and conducting dephosphorization during blast furnace tapping and transportation of blast furnace hot metal by the hot metal tank to obtain semi-steel with [P] less than 0.04 wt. % and [C] greater than or equal to 3.5 wt. %; and removing dephosphorization slag, and pouring the semi-steel into the converter for decarburization to obtain molten steel. The efficient dephosphorization agent includes iron oxide scale, lime, and composite calcium ferrite. According to the method, a phosphorus content of the blast furnace hot metal is reduced to be less than or equal to 0.04 wt. % through the efficient dephosphorization agent.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 20, 2023
    Inventors: Yanling ZHANG, Zheng ZHAO, Weifeng ZHANG, Zhonghua ZHAN