Patents by Inventor Zhaofeng Li

Zhaofeng 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).

  • Patent number: 11928884
    Abstract: The present disclosure provides a fingerprint collection method. When a fingerprint sensor is integrated on any function key of a terminal, a failure of a fingerprint application function that is caused when a user unintentionally operates a function key can be avoided. The method includes: obtaining, by a terminal, a fingerprint collection instruction, where the fingerprint collection instruction is used to instruct to collect a fingerprint by using a fingerprint sensor integrated on a function key; collecting, by the terminal by using the fingerprint sensor based on the fingerprint collection instruction, fingerprint information recorded by a user on the function key; obtaining, by the terminal on the function key at any moment of collecting the fingerprint information, a first key event triggered by the user, where the first key event is any operation other than a fingerprint recording event; and discarding, by the terminal, the first key event.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: March 12, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dapeng Zhang, Feipeng Shang, Zhaofeng Li
  • Patent number: 11879071
    Abstract: The present disclosure discloses a low-viscosity thermosetting starch adhesive for particleboards, and a preparation method therefore, belonging to the technical field of adhesive preparation. The adhesive of the present invention selects N-hydroxyethyl acrylamide or acetoxyethyl methacrylate as the crosslinking monomer, which has a low degree of crosslinking in the process of adhesive preparation to avoid the problem of increasing viscosity, but can cross-link quickly during the hot pressing process, forming a network structure, and improving the water resistance of the adhesive; and furthermore, itaconic acid is added to promote the self-crosslinking reaction of the crosslinking monomer in the hot-pressing process, thus further improving the water resistance.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: January 23, 2024
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Li Cheng, Junnan Jin, Zhengbiao Gu, Zhaofeng Li, Yan Hong, Caiming Li, Xiaofeng Ban
  • Patent number: 11834591
    Abstract: The present disclosure discloses a thermosetting starch adhesive for a wood-based panel and a preparation method therefor, and belongs to the technical field of preparation of adhesives. In the present disclosure, starch is used as a main raw material, and after acid hydrolysis thereof, a semi-continuous seed emulsion polymerization method is adopted to improve control of monomer polymerization stability. After grafting is completed, a cross-linking monomer with polymerizable double bonds and condensable methylol functional groups is added for copolymerization. The cross-linking monomer is also added in a semi-continuous manner. After the cross-linking reaction is completed, the reaction mixture is gelatinized and incubated, and finally a thermosetting adhesive which can be used for bonding of hot-pressed wood-based panels is obtained.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 5, 2023
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Li Cheng, Zhengbiao Gu, Yong Gu, Zhaofeng Li, Yan Hong, Caiming Li
  • Publication number: 20230342968
    Abstract: A method for generating a vehicle-mounted smart sticker includes acquiring model data of a vehicle body space, positioning at least one region inside the vehicle body space by using at least one image capturing device, tracking at least one object inside the vehicle body space for positioning at least one object image, and generating an image layer of a smart sticker according to the model data of the vehicle body space, positioning data of the at least one region inside the vehicle body space, and the at least one object image. A range of the image layer of the smart sticker corresponds to a range of the at least one region. The image layer of the smart sticker and the at least one object image are non-overlapped.
    Type: Application
    Filed: April 12, 2023
    Publication date: October 26, 2023
    Applicant: ArcSoft Corporation Limited
    Inventors: Tao Chen, Zhaofeng LI, Yanhong CHEN, Jie CHEN, Xujing HONG, Shuangzhong QIU
  • Publication number: 20230323164
    Abstract: The present disclosure discloses a low-viscosity thermosetting starch adhesive for particleboards, and a preparation method therefore, belonging to the technical field of adhesive preparation. The adhesive of the present invention selects N-hydroxyethyl acrylamide or acetoxyethyl methacrylate as the crosslinking monomer, which has a low degree of crosslinking in the process of adhesive preparation to avoid the problem of increasing viscosity, but can cross-link quickly during the hot pressing process, forming a network structure, and improving the water resistance of the adhesive; and furthermore, itaconic acid is added to promote the self-crosslinking reaction of the crosslinking monomer in the hot-pressing process, thus further improving the water resistance.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Inventors: Li Cheng, Junnan Jin, Zhengbiao Gu, Zhaofeng Li, Yan Hong, Caiming Li, Xiaofeng Ban
  • Patent number: 11771676
    Abstract: Disclosed is a method for preparing high-load oral paclitaxel capsule for a slow release in colon, belonging to the field of porous starch drug loading. The preparation method of the present disclosure includes the following steps: (1) dripping an ethanol solution of paclitaxel into a water phase and drying the solution to obtain an amorphous paclitaxel microsphere; (2) redissolving the paclitaxel microsphere prepared in step (1) in the ethanol solution, dispersing porous starch in the ethanol solution for adsorption, volatilizing a solvent in an oven, washing the porous starch with the ethanol solution to remove unadsorbed paclitaxel, and centrifuging same to obtain a precipitate, namely the porous starch loaded with paclitaxel; and (3) dispersing the porous starch loaded with paclitaxel prepared in step (2) in a chitosan solution, dropwise adding the solution into a phytic acid solution, and stirring the solution for 4 hours to obtain a coated capsule.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: October 3, 2023
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Yan Hong, Beibei Zhao, Zhengbiao Gu, Li Cheng, Zhaofeng Li, Caiming Li, Xiaofeng Ban
  • Publication number: 20230233511
    Abstract: Disclosed is a method for preparing high-load oral paclitaxel capsule for a slow release in colon, belonging to the field of porous starch drug loading. The preparation method of the present disclosure includes the following steps: (1) dripping an ethanol solution of paclitaxel into a water phase and drying the solution to obtain an amorphous paclitaxel microsphere; (2) redissolving the paclitaxel microsphere prepared in step (1) in the ethanol solution, dispersing porous starch in the ethanol solution for adsorption, volatilizing a solvent in an oven, washing the porous starch with the ethanol solution to remove unadsorbed paclitaxel, and centrifuging same to obtain a precipitate, namely the porous starch loaded with paclitaxel; and (3) dispersing the porous starch loaded with paclitaxel prepared in step (2) in a chitosan solution, dropwise adding the solution into a phytic acid solution, and stirring the solution for 4 hours to obtain a coated capsule.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 27, 2023
    Inventors: Yan HONG, Beibei ZHAO, Zhengbiao GU, Li CHENG, Zhaofeng LI, Caiming LI, Xiaofeng BAN
  • Publication number: 20230172208
    Abstract: The present disclosure provides a preparation method of eucalyptol emulsion and application thereof in biopesticides, belonging to the field of emulsion preparation. The method for preparing the eucalyptol emulsion includes the steps of: (1) adding eucalyptol into a cyclodextrin solution to obtain a mixed solution; (2) evenly mixing an emulsifier and a co-emulsifier to obtain a mixed solution; (3) adding the solution obtained in step (2) and water into the solution obtained in step (1), emulsifying to obtain the eucalyptol emulsion. In steps (1), (2) and (3), the mass percents of substances from which the eucalyptol emulsion is prepared are as follows: 0.5%-1% of cyclodextrin, 2.5%-25% of the eucalyptol, 1.25%-15% of the emulsifier, 0.3%-3.75% of the co-emulsifier and 55.3%-95.5% of the water, and the sum thereof is 100%. The emulsion is extremely stable without stratification after being placed at 20° C., 40° C. and 60° C. for 30 days and also has a good insecticidal effect.
    Type: Application
    Filed: January 17, 2023
    Publication date: June 8, 2023
    Inventors: Zhaofeng LI, Caiming Li, Zhengbiao GU, Haocun KONG, Mingxia QUAN, Luxiao WANG
  • Publication number: 20230000754
    Abstract: The disclosure discloses a liquid foundation using starch as a filler and a preparation method thereof, belonging to the technical fields of deep processing of starch and preparation of cosmetics. In the disclosure, starch is modified by an OSA reagent and then homogenized and micronized to obtain a starch filler; powder materials and the water phase in the formula of the liquid foundation are sequentially added to the oil phase at a certain temperature; the mixture is sheared at low speed, homogenized, and cooled to room temperature; and the starch filler is added to prepare the liquid foundation using starch as a filler, wherein the formula includes 10-20 parts of oil phase, 65-75 parts of water phase, 5-10 parts of toner, and 5-15 parts of starch filler.
    Type: Application
    Filed: September 6, 2022
    Publication date: January 5, 2023
    Inventors: Yan Hong, Wenwen Zhu, Zhengbiao Gu, Li Cheng, Zhaofeng Li, Caiming Li, Xiaofeng Ban
  • Publication number: 20220306536
    Abstract: A red mud utilization method based on co-processing of industrial exhaust gas, sewage treatment and an environment-friendly and high-performance civil functional material, belongs to the technical field of environmental science and cementitious material preparation, and relates to a preparation process of a solid waste-based cementitious material, specifically including the steps: preparing an environment-friendly and high-performance red mud-based civil functional material by using slag obtained after sewage treatment with red mud and other solid wastes in physical and chemical activation and high-temperature calcination methods. The compressive strength of a solid waste-based cementitious material prepared by using the method can reach 29 MPa, the leaching quantity (lower than 3.0 ppm) of toxic elements such as heavy metals is far lower than the national standard requirement, and a solid waste-based cementitious material with great performance can be prepared.
    Type: Application
    Filed: January 17, 2020
    Publication date: September 29, 2022
    Applicant: SHANDONG UNIVERSITY
    Inventors: Shucai LI, Zhaofeng LI, Jian ZHANG, Chunjin LIN
  • Publication number: 20220195073
    Abstract: The present disclosure discloses a method for extracting a duckweed turion starch, and belongs to the technical field of agriculture and food. The extraction method of the present disclosure includes the following steps: conducting drying and rehydration on a duckweed turion to obtain a rehydrated turion, soaking the rehydrated turion in a solvent, and then conducting washing and filtration to obtain a decolorized duckweed turion; or conducting beating on a fresh duckweed turion, soaking the fresh duckweed turion in a solvent, and then conducting washing and filtration to obtain a decolorized duckweed turion slurry; and putting the decolorized duckweed turion or the decolorized duckweed turion slurry in a dispersion liquid for extraction at a rotation speed of 6,000-18,000 rpm at 25-50° C. for 5-60 min, and then conducting filtration, centrifugation, washing and drying to obtain the duckweed turion starch.
    Type: Application
    Filed: March 4, 2022
    Publication date: June 23, 2022
    Inventors: Yuzhen JIN, Yan HONG, Xu WANG, Zhengbiao GU, Li CHENG, Zhaofeng LI, Caiming LI, Xiaofeng BAN, Qiwei ZHOU
  • Publication number: 20220143571
    Abstract: A red mud-based sewage treatment agent and a preparation method thereof, a red mud-based ceramsite concrete and a preparation method thereof, and applications, the agent including the following components: 80-90% of a solid waste complex after acidification treatment, 2-15% of an alkali activator, 0-1.0% of a water reducer, 0.5-2.0% of an ultrafine additive, and 1.0-5.0% of a treatment agent. The solid waste complex includes: at least one of red mud powder, blast furnace slag powder, fly ash, coal gangue powder and iron tailings powder. First, the red mud is modified to prepare an intermediate product, namely the red mud-based sewage treatment agent, which is used for absorption of pollutants in sewage and then used as a raw material again to prepare a final product, namely the red mud-based ceramsite concrete. Progressive comprehensive utilization of the red mud is realized, and adsorbed pollution factors can be sealed in the final product.
    Type: Application
    Filed: April 3, 2020
    Publication date: May 12, 2022
    Applicant: SHANDONG UNIVERSITY
    Inventors: Shucai LI, Jian ZHANG, Zhaofeng LI
  • Patent number: 11214629
    Abstract: The present disclosure discloses a method for preparing short-clustered dextrin, and belongs to the field of bio-modified starch. The method includes: collaboratively modifying to-be-modified starch by adopting Ro-GBE and Gt-GBE. The present disclosure utilizes two starch branching enzymes from different microorganism sources to collaboratively modify corn starch. The Ro-GBE is firstly added for pretreatment, then the Gt-GBE is added. The Ro-GBE catalyzes the to-be-modified starch to form a chain segment structure which is more conducive to further utilization for the Gt-GBE, thin and long starch molecule is transformed into short-clustered structure under the catalysis of Gt-GBE, and thus the slow digestibility of modified products is more obvious.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: January 4, 2022
    Assignee: Jiangnan University
    Inventors: Zhaofeng Li, Zhengbiao Gu, Yang Li, Caiming Li, Li Cheng, Yan Hong
  • Publication number: 20210401017
    Abstract: The disclosure discloses a preparation method of a starch-based double emulsion embedding fat-soluble functional factors, belonging to the technical field of preparation of emulsions. The preparation method of the disclosure includes the following steps: (1) adding a hydrophilic emulsifier into gelatinized starch milk, and uniformly mixing; adding an oil phase containing fat-soluble functional factors and a lipophilic emulsifier, and forming an O1/W starch-based single emulsion embedding fat-soluble functional factors by shearing, where a mass ratio of the hydrophilic emulsifier to the lipophilic emulsifier is 2-3:1-2; and (2) dropwise adding the O1/W starch-based single emulsion embedding fat-soluble functional factors into an oil phase and a lipophilic emulsifier, uniformly mixing, and then allowing the mixture to stand for retrogradation; and obtaining the O1/W/O2 starch-based double emulsion embedding fat-soluble functional factors.
    Type: Application
    Filed: September 6, 2021
    Publication date: December 30, 2021
    Inventors: Yan HONG, Jie YANG, Zhengbiao GU, Li CHENG, Zhaofeng LI, Caiming LI, Xiaofeng BAN
  • Patent number: 11142781
    Abstract: The disclosure herein relates to a method for producing high-quality maltodextrin, and belongs to the technical field of maltodextrin. On the basis of a traditional enzymatic production process of maltodextrin, starch branching enzyme derived from Rhodothermus obamensis is introduced, an ?-1,4-glycosidic bond is cleaved, the cleaved short chain is ligated to a receptor chain to form an ?-1,6-branch point, so the degree of branching is increased and the maltodextrin has more cluster structures. Thereby, the aims that the stability of the maltodextrin is enhanced and the maltodextrin is not easy to retrograde are achieved, and the freeze-thaw stability of the maltodextrin is also improved. The method specifically comprises the steps of slurry preparation, spray liquefaction, starch branching enzyme action, filtration, decolorization, ion exchange, concentration, spray drying, and the like.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 12, 2021
    Assignee: Jiangnan University
    Inventors: Zhaofeng Li, Zhengbiao Gu, Zhe Wang, Caiming Li, Sijia Xu, Li Cheng, Yan Hong
  • Patent number: 11124816
    Abstract: The present disclosure disclosed is method for improving the transparency of starch liquefaction, and belongs to the field of biologically modified starch. The method changes the molecular structure of the starch liquefaction product by adding a 1,4-?-glucan branching enzyme from Rhodothermus obamensis, so the molecular structure has a smaller branched chain and a higher branching degree, thereby achieving the purpose of improving transparency and stability. The method comprises the steps of dissolving a starch liquefaction product in water according to a certain concentration to prepare an aqueous solution of the starch liquefaction product, and adding a 1,4-?-glucan branching enzyme to react at a certain temperature for a period of time, so as to improve the transparency of the starch liquefaction product during storage. The method provides a new idea for improving the stability of starch liquefaction products, and has great potential and application prospects.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: September 21, 2021
    Assignee: Jiangnan University
    Inventors: Zhaofeng Li, Zhengbiao Gu, Zhe Wang, Caiming Li, Sijia Xu, Li Cheng, Yan Hong
  • Publication number: 20210286966
    Abstract: The present disclosure provides a fingerprint collection method. When a fingerprint sensor is integrated on any function key of a terminal, a failure of a fingerprint application function that is caused when a user unintentionally operates a function key can be avoided. The method includes: obtaining, by a terminal, a fingerprint collection instruction, where the fingerprint collection instruction is used to instruct to collect a fingerprint by using a fingerprint sensor integrated on a function key; collecting, by the terminal by using the fingerprint sensor based on the fingerprint collection instruction, fingerprint information recorded by a user on the function key; obtaining, by the terminal on the function key at any moment of collecting the fingerprint information, a first key event triggered by the user, where the first key event is any operation other than a fingerprint recording event; and discarding, by the terminal, the first key event.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 16, 2021
    Inventors: Dapeng Zhang, Feipeng Shang, Zhaofeng Li
  • Patent number: 11085244
    Abstract: An anti-collapse grouting consolidation system including: a grouting pump; an outer flat drill rod; a drill rig that clamps the outer flat drill rod; a sealing device, sheathed on the outer flat drill rod at the orifice of a drill hole, ensuring the outer flat drill rod is sealed with the orifice of the drill hole; and a jet grouting drill bit with bi-directional rib wings. The grouting pump jets slurry into the drill hole in a static osmotic manner through the jet grouting drill bit. A method of using an anti-collapse grouting consolidation system includes, among other things, injecting quick-setting slurry; sealing an orifice hole of the drill hole by an orifice sealing device; and keeping an anti-collapse jet grouting drill bit with bi-directional rib wings repeatedly moving up and down and rotating at a repair segment to repair the repair segment.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 10, 2021
    Assignee: SHANDONG UNIVERSITY
    Inventors: Shucai Li, Qingsong Zhang, Guangming Pan, Rentai Liu, Xiao Zhang, Lei Yang, Kai Wang, Zhaofeng Li, Haitong Sui, Teng Yang, Chunguo Liu
  • Patent number: 11077066
    Abstract: The present disclosure discloses a pH-sensitive starch-based microcapsule encapsulating a fat-soluble substance and a preparation method thereof, and belongs to the field of preparation of starch-based hydrogel microcapsules. The method of the present disclosure comprises performing acid hydrolysis on starch to obtain acid-hydrolyzed carboxymethyl starch, mixing the acid-hydrolyzed carboxymethyl starch with xanthan gum to obtain a compounded solution of starch and colloid, adding an emulsifier and the fat-soluble substance, emulsifying to obtain an emulsion, and drying to obtain the microcapsule.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 3, 2021
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Yan Hong, Min Jiang, Zhengbiao Gu, Li Cheng, Zhaofeng Li, Caiming Li
  • Patent number: 10977474
    Abstract: A fingerprint collection method and a terminal, where the method includes obtaining, by a terminal, a fingerprint collection instruction, where the fingerprint collection instruction instructs to collect a fingerprint using a fingerprint sensor integrated on a function key, collecting, by the terminal using the fingerprint sensor based on the fingerprint collection instruction, fingerprint information recorded by a user on the function key, obtaining, by the terminal on the function key at any moment of collecting the fingerprint information, a first key event triggered by the user, where the first key event is any operation other than a fingerprint recording event, and discarding, by the terminal, the first key event.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: April 13, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dapeng Zhang, Feipeng Shang, Zhaofeng Li