Patents by Inventor Yaoyao ZHANG

Yaoyao 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: 20250140512
    Abstract: An ion beam etching machine and a lower electrode structure thereof. The lower electrode structure comprises an electrode plate, a ring pressing mechanism, and a lifting mechanism, the ring pressing mechanism being configured to support a member to be etched, and the lifting mechanism being configured to drive the ring pressing mechanism to ascend and descend relative to the electrode plate; and same further comprises a position measurement mechanism for measuring a position to which the ring pressing mechanism descends relative to the electrode plate. The lifting mechanism is configured to stop driving the ring pressing mechanism to descend based on measurement information fed back by the position measurement mechanism. The arrangement of the lower electrode structure can avoid fragmenting of the member to be etched, and improve the product yield.
    Type: Application
    Filed: September 9, 2022
    Publication date: May 1, 2025
    Applicant: JIANGSU LEUVEN INSTRUMENTS CO., LTD.
    Inventors: Huaidong ZHANG, Yaoyao ZHANG, Dongdong HU, Chaoquan YANG, Shiran CHENG, Xiang YU, Xiaoli SHI, Kaidong XU
  • Patent number: 12243713
    Abstract: An anti-breakdown ion source discharge apparatus includes a discharge chamber, a coil support, an upper insulation fixing block, a discharge component and an ion source chamber. The discharge component includes a radio-frequency coil, a lower conductive connector and an upper conductive connector. The radio-frequency coil is fixed on a coil support base; the coil support base is clamped on an inner wall of the bottom of the ion source base; the coil support is along the circumference of the coil support base; the radio-frequency coil passes through the coil support; the upper conductive connector passes by the radio-frequency coil and the coil support base from the outside of the radio-frequency coil and extends into the bottom of the discharge chamber; and the upper insulation fixing block is sleeved over the upper conductive connector and is fixed on the inner wall of the bottom of the ion source chamber.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: March 4, 2025
    Assignee: JIANGSU LEUVEN INSTRUMENTS CO. LTD
    Inventors: Yaoyao Zhang, Dongdong Hu, Jun Zhang, Na Li, Haiyang Liu, Shiran Cheng, Song Guo, Kaidong Xu
  • Publication number: 20240261768
    Abstract: The present disclosure belongs to the technical field of catalyst preparation, and provides a polynorbornene/carbon black-cross-linked three-dimensional network-immobilized bimetallic copper/gold (PNBI/CB-Cu/Au) nanocatalyst, and a preparation method and use thereof. Metallic copper and gold both exist in a form of nanoparticles in the catalyst and are uniformly dispersed, and further enhancing a catalytic performance. Moreover, the carrier is a polynorbornene/carbon black-cross-linked three-dimensional network, and a relative content of free hydroxyl groups in the catalyst is controlled by changing a monomer ratio to adjust a hydrophilic-lipophilic balance value of the catalyst, adapting to a reaction of an organic phase with an aqueous phase. Furthermore, the catalyst is insoluble in conventional solvents, and has a desirable effect in immobilizing nanoscale metallic copper, prolonging a service life of the catalyst.
    Type: Application
    Filed: July 26, 2022
    Publication date: August 8, 2024
    Applicant: HUBEI ENGINEERING UNIVERSITY
    Inventors: Lei ZHU, Biao HAN, Bojie LI, Yaoyao ZHANG, Weishuang LI
  • Patent number: 11878082
    Abstract: An encapsulated probiotic, an encapsulating layer and a method of encapsulating probiotics are disclosed. The encapsulated probiotic includes an encapsulating layer and probiotics, and the encapsulating layer includes a nano-film having two layers for encapsulating probiotics. A first layer is formed through biological macromolecules and metal ions on surfaces of the probiotics by covalent cross-linking or metal chelating action in situ, and a second layer is formed by interactions between a bio-enzyme and the biological macromolecules. The nano-film formed in situ on cell walls of probiotics is used for encapsulation and protection of probiotics.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: January 23, 2024
    Assignee: CHENGDU BANGJIALEJUN BIOTECHNOLOGY CO., LTD
    Inventors: Junling Guo, Yaoyao Zhang, Jiezhou Pan, Guidong Gong
  • Patent number: 11780961
    Abstract: The present invention relates to a kind of organic metal-free catalysts containing both electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof. The organic metal-free catalysts in the present invention have the chemical structure shown in formula (I): Compared with the metal-free organic polymerization catalytic systems that have been reported before, the organic metal-free catalysts in this invention have the combined advantages of simple preparation, high reactivity, easy operation, low cost, wide applicability, easy for industrial production.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: October 10, 2023
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Guangpeng Wu, Guanwen Yang, Yaoyao Zhang
  • Publication number: 20230207250
    Abstract: An ion source baffle includes a baffle body, wherein the baffle body is of a hollow structure; baffles are symmetrically fixedly arranged on an inner wall of the baffle body; the baffles extend towards the center of the baffle body; and in the direction from the inner wall of the baffle body towards the center of the baffle body, a shielding area formed by the baffles is reduced. The ion etching machine includes a discharge chamber, a reaction chamber and an ion source baffle, wherein the ion source baffle is clamped on an inner wall of the discharge chamber; and plasma sequentially passes through the ion source baffle and an ion source grid assembly. In the ion etching machine, the ion source baffle is additionally provided, such that after plasma is shielded by the ion source baffle.
    Type: Application
    Filed: May 19, 2021
    Publication date: June 29, 2023
    Inventors: Yaoyao ZHANG, Dongdong HU, Haiyang LIU, Jun ZHANG, Na LI, Shiran CHENG, Zhiyou ZHU, Kaidong XU
  • Publication number: 20230207260
    Abstract: An anti-breakdown ion source discharge apparatus includes a discharge chamber, a coil support, an upper insulation fixing block, a discharge component and an ion source chamber. The discharge component includes a radio-frequency coil, a lower conductive connector and an upper conductive connector. The radio-frequency coil is fixed on a coil support base; the coil support base is clamped on an inner wall of the bottom of the ion source base; the coil support is along the circumference of the coil support base; the radio-frequency coil passes through the coil support; the upper conductive connector passes by the radio-frequency coil and the coil support base from the outside of the radio-frequency coil and extends into the bottom of the discharge chamber; and the upper insulation fixing block is sleeved over the upper conductive connector and is fixed on the inner wall of the bottom of the ion source chamber.
    Type: Application
    Filed: May 19, 2021
    Publication date: June 29, 2023
    Inventors: Yaoyao ZHANG, Dongdong HU, Jun ZHANG, Na LI, Haiyang LIU, Shiran CHENG, Song GUO, Kaidong XU
  • Publication number: 20220000793
    Abstract: A biomass-based encapsulating material for protection of probiotic activity and an encapsulating method are disclosed. The biomass-based encapsulating material includes a nano-film having two layers for encapsulating probiotics. A first layer is formed through natural biological macromolecules and metal ions on surfaces of the probiotics by covalent cross-linking or metal chelating action in situ, and a second layer is formed by interactions between a bio-enzyme and the natural biological macromolecules. The nano-film formed in situ on cell walls of probiotics is used for encapsulation and protection of probiotics. The nano-film is made of natural biomass, has low cost and has no toxic side effects. The relative activity of encapsulated probiotics is close to or higher than 90%, whether they are cultivated in environments under high concentration of antibiotics or active-free radicals. The relative activity of unprotected probiotics is below 30%, or even completely unable to survive.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Applicant: Chengdu bangjialejun Biotechnology Co., Ltd
    Inventors: Junling Guo, Yaoyao Zhang, Jiezhou Pan, Guidong Gong
  • Patent number: 11207945
    Abstract: A flow control device for use in a heat exchange system, including: a housing, a movable valve member and a drive control member, the housing being formed to have a mounting cavity, a first interface and a second interface, while the drive control member includes a control unit, a power output unit, a magnetic element and a detection element; the power output unit provides power to the movable valve member, while the detection element and the control unit are electrically connected, and the magnetic element and the power output unit are mutually assembled and oppositely fixed, the power output unit may drive the magnetic element to rotate; the detection element and the magnetic element are oppositely disposed, the detection element being located within the range of the magnetic field of the magnetic element, the detection element may sense a magnetic pole change of the magnetic element.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: December 28, 2021
    Assignee: Zhejiang Sanhua Intelligent Controls Co., Ltd.
    Inventors: Huayuan Jiang, Xuexia Gong, Yaoyao Zhang, Zhi Wu
  • Publication number: 20210363297
    Abstract: The present invention relates to a kind of organic metal-free catalysts containing both electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof. The organic metal-free catalysts in the present invention have the chemical structure shown in formula (I): Compared with the metal-free organic polymerization catalytic systems that have been reported before, the organic metal-free catalysts in this invention have the combined advantages of simple preparation, high reactivity, easy operation, low cost, wide applicability, easy for industrial production.
    Type: Application
    Filed: September 2, 2019
    Publication date: November 25, 2021
    Inventors: GUANGPENG WU, GUANWEN YANG, YAOYAO ZHANG
  • Patent number: 10941871
    Abstract: A flow control apparatus for a heat exchange system of a vehicle, including a housing, a valve cartridge assembly, and a control part. A first protrusion is provided on the housing; correspondingly, a second protrusion is provided on a shell of the control part; the first protrusion and the second protrusion are assembled and engaged; a first valve plate is sealed from a second valve plate, so that the seal performance of a product can be improved.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: March 9, 2021
    Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Yumin Yu, Huayuan Jiang, Zhi Wu, Yaoyao Zhang, Hongmin Lu
  • Patent number: 10640348
    Abstract: The present invention provides a pallet carrier, comprising a carrier frame structure; a fork structure disposed on the carrier frame structure; a driving wheel structure comprising driving wheels that are articulated to the carrier frame structure, wherein each one of the driving wheels is set as a one-piece wheel structure integrated with a driving motor and a hub. The pallet carrier has the advantages of simple structure and work reliability.
    Type: Grant
    Filed: January 7, 2018
    Date of Patent: May 5, 2020
    Assignee: NINGBO RUYI JOINT STOCK CO., LTD.
    Inventors: Zhenyu Pan, Feng Tian, Zhenli Feng, Zefeng Yang, Liangzhu Wu, Yaoyao Zhang, Ji Chen, Haoxiang Fang
  • Publication number: 20190309859
    Abstract: A flow control apparatus for a heat exchange system of a vehicle, including a housing, a valve cartridge assembly, and a control part. A first protrusion is provided on the housing; correspondingly, a second protrusion is provided on a shell of the control part; the first protrusion and the second protrusion are assembled and engaged; a first valve plate is sealed from a second valve plate, so that the seal performance of a product can be improved.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 10, 2019
    Applicant: Hangzhou Sanhua Research Institute Co., Ltd
    Inventors: Yumin Yu, Huayuan Jiang, Zhi Wu, Yaoyao Zhang, Hongmin Lu
  • Publication number: 20190283534
    Abstract: A flow control device for use in a heat exchange system, including: a housing, a movable valve member and a drive control member, the housing being formed to have a mounting cavity, a first interface and a second interface, while the drive control member includes a control unit, a power output unit, a magnetic element and a detection element; the power output unit provides power to the movable valve member, while the detection element and the control unit are electrically connected, and the magnetic element and the power output unit are mutually assembled and oppositely fixed, the power output unit may drive the magnetic element to rotate; the detection element and the magnetic element are oppositely disposed, the detection element being located within the range of the magnetic field of the magnetic element, the detection element may sense a magnetic pole change of the magnetic element.
    Type: Application
    Filed: November 29, 2017
    Publication date: September 19, 2019
    Applicant: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Huayuan Jiang, Xuexia Gong, Yaoyao Zhang, Zhi Wu
  • Publication number: 20180334368
    Abstract: The present invention provides a pallet carrier, comprising a carrier frame structure; a fork structure disposed on the carrier frame structure; a driving wheel structure comprising driving wheels that are articulated to the carrier frame structure, wherein each one of the driving wheels is set as a one-piece wheel structure integrated with a driving motor and a hub. The pallet carrier has the advantages of simple structure and work reliability.
    Type: Application
    Filed: January 7, 2018
    Publication date: November 22, 2018
    Inventors: Zhenyu PAN, Feng TIAN, Zhenli FENG, Zefeng YANG, Liangzhu WU, Yaoyao ZHANG, Ji CHEN, Haoxiang FANG
  • Patent number: D859470
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: September 10, 2019
    Assignee: Hangzhou Sanhua Research Institute
    Inventors: Jianbin Shentu, Zhi Wu, Yaoyao Zhang, Long Lin
  • Patent number: D869506
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Huayuan Jiang, Zhi Wu, Yaoyao Zhang, Long Lin
  • Patent number: D870776
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 24, 2019
    Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Yaoyao Zhang, Zhi Wu, Huayuan Jiang, Huipeng Lv