Patents by Inventor Zhongkai WANG

Zhongkai WANG 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).

  • Patent number: 11505852
    Abstract: The present disclosure discloses an yttrium (Y)-added rare-earth permanent magnetic material and a preparation method thereof. A chemical formula of the material expressed in atomic percentage is (YxRE1-x)aFebalMbNc, wherein 0.05?x?0.4, 7?a?13, 0?b?3, 5?c?20, and the balance is Fe, namely, bal=100-a-b-c; RE represents a rare-earth element Sm, or a combination of the rare-earth element Sm and any one or more elements of Zr, Nd and Pr; M represents Co and/or Nb; and N represents nitrogen. In the preparation method, the rare-earth element Y is utilized to replace the element Sm of a samarium-iron-nitrogen material. By regulating a ratio of the element Sm to the element Y, viscosity of an alloy liquid can be reduced, and an amorphous forming ability of the material is enhanced.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 22, 2022
    Assignee: GRIREM ADVANCED MATERIALS CO., LTD.
    Inventors: Yang Luo, Xiao Lin, Guiyong Wu, Jiajun Xie, Zilong Wang, Wenlong Yan, Zhongkai Wang, Dunbo Yu
  • Publication number: 20220363828
    Abstract: A preparation method of a reprocessable thermosetting polyesteramide (PEA) includes: (1) mixing 30 to 200 parts by weight of a liquid dicarboxylic acid and 15 to 95 parts by weight of a ?-hydroxyl-containing diamine compound, and heating for dissolution to obtain a reaction solution; (2) adding 0.05 to 0.5 parts by weight of a catalyst to the reaction solution, and heating under a nitrogen atmosphere to allow a reaction at 65° C. to 100° C. for 1 h to 6 h; (3) heating a reaction system obtained in step (2) to allow a reaction at 100° C. to 180° C. for 3 h to 18 h; (4) heating a reaction system obtained in step (3) to allow a reaction at 180° C. to 240° C. for 0.5 h to 4 h; and (5) cooling a reaction system obtained in step (4) to 100° C. to 180° C. A PEA prepared by the above preparation method is further provided.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 17, 2022
    Applicant: ANHUI AGRICULTURAL UNIVERSITY
    Inventors: Zhongkai WANG, Yongliang DING, Cheng LIU
  • Publication number: 20220314864
    Abstract: The invention relates to an emergency support robot for polar UAVs, belonging to the technical field of emergency support robots for polar UAVs. The technical problem to be solved is to improve the structure of the existing emergency support robots for polar UAVs. The technical scheme adopted is as follows: the robot is of a car body structure; a support table is arranged on the upper side of the chassis of the car body; a traveling mechanism is arranged on both sides of the chassis of the car body; the two sides of the support table are hinged with a pair of casings through hinged buckles and push rods; the casings are also provided with a wind power plant; the support table is provided with a launching guide rail.
    Type: Application
    Filed: October 20, 2020
    Publication date: October 6, 2022
    Inventors: Tao Wang, Jinzhu Zhang, Wei Shi, Hanqing Shi, Xiaoxiong Ma, Qinkang Sun, Caiyun Zhao, Xiaoyan Xiong, Hefeng Wang, Zhongkai Ren, Xiaobao Ma
  • Publication number: 20220289269
    Abstract: An electric truck steer-by-wire system and a net-work uncertainty control method therefor. Said system comprises: a master control electric power module (14), a slave control electric power module (18), a road-sensing motor module (4), a steering wheel (1), an upper steering column (3), a lower steering column(10), a rack and pinion steering mechanism (12), wheels (13), a first steering angle sensor (2), a second steering angle sensor (11),a steering domain controller (8), and a vehicle-mounted CAN network (9). By means of the design of the master and slave controllers and actuating mechanisms, the system combines the advantages of steering angle tracking, torque tracking and current tracking, there-by satisfying the steering response requirements and power requirements of the electric truck, and further enhancing the robustness and fault-tolerant performance of the system under a random network time lag.
    Type: Application
    Filed: May 14, 2020
    Publication date: September 15, 2022
    Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
    Inventors: Wanzhong ZHAO, Zhongkai LUAN, Xiaochuan Zhou, Chunyan Wang
  • Publication number: 20220241831
    Abstract: The present disclosure provides a pulse current assisted uncanned rolling method for titanium-TiAl composite plates, including the following specific steps: 1. preparing titanium alloy sheets; 2. preparing TiAl alloy sheets; 3. uncanned lay-up; 4. pulse current assisted hot-rolling; 5. separation and subsequent processing, thus getting the titanium-TiAl composite plates. The composite plates are of good quality on the surface without oxide layer shedding, no cracks at the edges and the ends, with uniform and fine microstructures, good bonding interface and excellent mechanical properties.
    Type: Application
    Filed: October 23, 2020
    Publication date: August 4, 2022
    Inventors: Jianchao HAN, Yi JIA, Tao WANG, Zhongkai REN, Yuanming LIU, Dongping HE, Sha LI, Miao GUO
  • Publication number: 20220213634
    Abstract: An atomizing generator which includes a housing provided with an atomizing cavity therein, an atomizing element capable of atomizing a liquid is provided in the atomizing cavity, an air inlet, a liquid inlet, and a mist outlet which are communicated with the atomizing cavity are provided on the housing, and a communicating cavity which is independent of the atomizing cavity is formed in the housing. The atomizing cavity is communicated with the communicating cavity through a first communication hole, the mist outlet is communicated with the communicating cavity through a second communication hole, a valve mechanism is further provided in the communicating cavity, and the valve mechanism is configured to be capable of sealing the first communication hole and/or the second communication hole.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Applicants: QINGDAO HAIER WASHING MACHINE CO., LTD., Haier Smart Home Co., Ltd.
    Inventors: Sheng XU, Zhiqiang ZHAO, Dejun WANG, Zhongkai ZHUANG, Guangbin SUN
  • Publication number: 20220210298
    Abstract: The present disclosure relates to the field of optical technologies and provides a camera module and an endoscope. The camera module includes: a connecting base, including a first connecting member and a first circuit board; wherein the first circuit board is installed in the first connecting member; and a camera, including a housing, a second circuit board, a light source assembly, and a lens assembly; wherein the second circuit board, the light source assembly, and the lens assembly are respectively installed in the housing; the housing is removably connected to the first connecting member; the first circuit board and the second circuit board are electrically connected to each other.
    Type: Application
    Filed: June 25, 2021
    Publication date: June 30, 2022
    Inventors: Jiangfan YAN, Juhao CHEN, Zhongkai WANG, Hongquan GUAN, Haijuan ZOU, Xiang ZHENG
  • Publication number: 20210375514
    Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. By stacking magnets having different magnetic properties and/or densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in pressing densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method solves the problem of “low in the middle and high at two ends” caused by the phenomenon of non-uniform magnetic field orientation and density along a height direction during orientation and densification.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 2, 2021
    Inventors: Yang LUO, Yuanfei YANG, Zilong WANG, Dunbo YU, Hongbin ZHANG, Jiajun XIE, Zhou HU, Zhongkai WANG
  • Publication number: 20210129217
    Abstract: A method for preparing a rare earth anisotropic bonded magnetic powder, comprises the following steps: (1) preparing raw powder with RTBH as the main component, wherein, R is Nd or Pr/Nd, and T is a transition metal containing Fe; (2) adding La/Ce hydride and copper powder to the raw powder to form a mixture; (3) subjecting the mixture to atmosphere diffusion heat treatment to give the rare earth anisotropic bonded magnetic powder. The invention selects high-abundance rare earth elements La, Ce to replace Dy, Tb, Nd, Pr and other medium and heavy rare earth elements, which can achieve the same coercivity improvement effect while also significantly reducing the cost, thereby achieving efficient application of low-cost and high-abundance rare earths.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 6, 2021
    Inventors: Yang LUO, Zilong WANG, Yuanfei Yang, Zhou HU, Dunbo Yu, Jiajun XIE, Yifan LIAO, Zhongkai WANG
  • Publication number: 20210134499
    Abstract: The invention discloses a composite rare earth anisotropic bonded magnet and a preparation method thereof. The composite rare earth anisotropic bonded magnet comprises a Nd—Fe—B magnetic powder, a Sm—Fe—N magnetic powder, a binder and an inorganic nano-dispersant. The preparation method comprises steps of preparing a Nd—Fe—B magnetic powder by a HDDR method, preparing a Sm—Fe—N magnetic powder by a powder metallurgy method, mixing the Nd—Fe—B magnetic powder, the Sm—Fe—N magnetic powder, the binder and the inorganic nano-dispersant at a specific ratio to finally obtain the composite rare earth anisotropic bonded magnet. The invention, by adding an inorganic nano-dispersant, enables the full dispersion of the fine Sm—Fe—N powder during the mixing process of the binder, the Nd—Fe—B magnetic powder and the Sm—Fe—N powder, and thus makes the fine Sm—Fe—N powder and the binder evenly coated on the surface of the anisotropic Nd—Fe—B magnetic powder.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 6, 2021
    Inventors: Yang Luo, Zhongkai Wang, Yuanfei Yang, Zilong Wang, Dunbo Yu, Yifan Liao, Jiajun Xie, Zhou Hu
  • Publication number: 20210130939
    Abstract: The invention discloses an anisotropic bonded magnetic powder and a preparation method thereof. The anisotropic bonded magnetic powder has a general formula of R1R2TB, wherein R1 is a rare earth element containing Nd or PrNd, R2 is one or two of La and Ce, T is a transitional element, and B is boron. The preparation method includes the steps of smelting the master alloy to prepare ingot(s), preparing a rare earth hydride of formula R1TBHX, preparing a hydride diffusion source of formula R1R2THX, mixing, heat treating, and high-vacuum dehydrogenating, to obtain the anisotropic bonded magnetic powder. The invention uses La and Ce hydrides as the diffusion source, can save cost, remove hydrogen from the diffusion source at a lower dehydrogenation temperature, avoid crystal grain growth at a high temperature, and ensure the quality of the product.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 6, 2021
    Inventors: Yang Luo, Zhongkai Wang, Yuanfei Yang, Zilong Wang, Dunbo Yu, Yifan Liao, Jiajun Xie, Zhou Hu
  • Publication number: 20200263280
    Abstract: The present disclosure discloses an yttrium (Y)-added rare-earth permanent magnetic material and a preparation method thereof. A chemical formula of the material expressed in atomic percentage is (YxRE1-x)aFebalMbNc, wherein 0.05?x?0.4, 7?a?13, 0?b?3, 5?c?20, and the balance is Fe, namely, bal=100-a-b-c; RE represents a rare-earth element Sm, or a combination of the rare-earth element Sm and any one or more elements of Zr, Nd and Pr; M represents Co and/or Nb; and N represents nitrogen. In the preparation method, the rare-earth element Y is utilized to replace the element Sm of a samarium-iron-nitrogen material. By regulating a ratio of the element Sm to the element Y, viscosity of an alloy liquid can be reduced, and an amorphous forming ability of the material is enhanced.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Inventors: Yang LUO, Xiao LIN, Guiyong WU, Jiajun XIE, Zilong WANG, Wenlong YAN, Zhongkai WANG, Dunbo YU
  • Patent number: 10287236
    Abstract: A method i for forming an epoxidized polymer is provided. The method may include mixing an epoxidized plant oil with a synthetic epoxy resin and crosslinking the epoxidized plant oil and the synthetic epoxy resin using a curing agent. The epoxidized plant oil may be formed via: converting plant oil triglycerides to fatty amide alcohols via aminolysis using primary or secondary amines, converting the fatty amide alcohols to epoxidized fatty amide alcohols, and reacting the epoxidized fatty amide alcohols with vinyl monomers to obtain epoxidized plant oil monomers.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: May 14, 2019
    Assignee: University of South Carolina
    Inventors: Chuanbing Tang, Zhongkai Wang, Liang Yuan
  • Patent number: 10215942
    Abstract: The present disclosure discloses a high-temperature resistant and small-diameter optical cable and a preparation method thereof. The high-temperature resistant and small-diameter optical cable is prepared by using acrylate as a coating material, using PHB/PET liquid crystal copolyester as an outer protective layer material and using an extrusion process. Compared to traditional optical cables, the novel optical cable has advantages in small diameter, low loss attenuation, good microbending property, excellent mechanical property, long one-time finished length (10 km˜26 km), long storage time, simple preparation process and wide operating temperature range.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 26, 2019
    Assignee: HENGTONG OPTIC-ELECTRIC CO., LTD.
    Inventors: Peidong Liu, Peng Cao, Zengqiang Zhang, Jicheng Yin, Chuanwu Xuan, Junxiong Wu, Xinhua Shen, Qiang Li, Hongzhou Pan, Di Wu, Zhongkai Wang, Shan Xu, Lihua Sun
  • Publication number: 20180246288
    Abstract: The present disclosure relates to a high-temperature resistant and small-diameter optical cable and a preparation method thereof. The high-temperature resistant and small-diameter optical cable is prepared by using acrylate as a coating material, using PHB/PET liquid crystal copolyester as an outer protective layer material and using an extrusion process. Compared to traditional optical cables, the high-temperature resistant and small-diameter optical cable is small in diameter, low in loss, good in microbending property, excellent in mechanical property, long in one-time finished length (10 kilometers (km)˜26 km), long in storage time, simple in preparation process, and wide in operating temperature range.
    Type: Application
    Filed: November 2, 2016
    Publication date: August 30, 2018
    Applicant: Hengtong Optic-electric Co., Ltd.
    Inventors: Peidong LIU, Peng CAO, Zengqiang ZHANG, Jicheng YIN, Chuanwu XUAN, Junxiong WU, Xinhua SHEN, Qiang LI, Hongzhou PAN, Di WU, Zhongkai WANG, Shan XU, Lihua SUN
  • Publication number: 20180129003
    Abstract: The present disclosure discloses a high-temperature resistant and small-diameter optical cable and a preparation method thereof. The high-temperature resistant and small-diameter optical cable is prepared by using acrylate as a coating material, using PHB/PET liquid crystal copolyester as an outer protective layer material and using an extrusion process. Compared to traditional optical cables, the novel optical cable has advantages in small diameter, low loss attenuation, good microbending property, excellent mechanical property, long one-time finished length (10 km˜26 km), long storage time, simple preparation process and wide operating temperature range.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 10, 2018
    Applicant: Hengtong Optic-electric Co., Ltd.
    Inventors: Peidong LIU, Peng CAO, Zengqiang ZHANG, Jicheng YIN, Chuanwu XUAN, Junxiong WU, Xinhua SHEN, Qiang LI, Hongzhou PAN, Di WU, Zhongkai WANG, Shan XU, Lihua SUN
  • Publication number: 20170298007
    Abstract: A method i for forming an epoxidized polymer is provided. The method may include mixing an epoxidized plant oil with a synthetic epoxy resin and crosslinking the epoxidized plant oil and the synthetic epoxy resin using a curing agent. The epoxidized plant oil may be formed via: converting plant oil triglycerides to fatty amide alcohols via aminolysis using primary or secondary amines, converting the fatty amide alcohols to epoxidized fatty amide alcohols, and reacting the epoxidized fatty amide alcohols with vinyl monomers to obtain epoxidized plant oil monomers.
    Type: Application
    Filed: April 17, 2017
    Publication date: October 19, 2017
    Inventors: Chuanbing Tang, Zhongkai Wang, Liang Yuan
  • Patent number: 9219599
    Abstract: A clock and data recovery (CDR) circuit employing zero-crossing linearizing (ZCL) technique. The circuit including a voltage controlled oscillator (VCO), an inject-locked divider (ILD), a variable delay unit, a linearized loop, a bang-bang loop, and a loop filter (LP). The differential clock generated by VCO passes through ILD for frequency dividing and variable delay unit to generate 8-phase clocks. Then using these clocks, the PDs over-sample the input data, followed by synchronization and logic operation to control the CPs output current pulses. These currents filtered by LP control the VCO to finish the loop. The circuit recovers 4 channel data and corresponding clocks of the input with low power broken-down and preferable jitter performance and locking property.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 22, 2015
    Assignee: FUDAN UNIVERSITY
    Inventors: Zhongkai Wang, Rui Bai, Patrick Yin Chiang
  • Publication number: 20150180644
    Abstract: A clock and data recovery (CDR) circuit employing zero-crossing linearizing (ZCL) technique. The circuit including a voltage controlled oscillator (VCO), an inject-locked divider (ILD), a variable delay unit, a linearized loop, a bang-bang loop, and a loop filter (LP). The differential clock generated by VCO passes through ILD for frequency dividing and variable delay unit to generate 8-phase clocks. Then using these clocks, the PDs over-sample the input data, followed by synchronization and logic operation to control the CPs output current pulses. These currents filtered by LP control the VCO to finish the loop. The circuit recovers 4 channel data and corresponding clocks of the input with low power broken-down and preferable jitter performance and locking property.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 25, 2015
    Inventors: Zhongkai WANG, Rui BAI, Patrick Yin CHIANG