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: 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
  • Publication number: 20210087597
    Abstract: The disclosure discloses a production process and application of fermented tapioca starch for baking, and belongs to the fields of starch deep processing and food processing and production. The disclosure develops a production method of the fermented tapioca starch for baking. The method includes simple steps and greatly shortens a process cycle. By using tapioca starch as a main raw material and adding a specific amount of carbon source and a specific strain, under the action of fermentation and illumination in cooperation, the structure of the starch is improved. By adding the fermented tapioca starch, the effects of increasing the size of gluten-free Mochi bread, increasing pores of the bread and improving the texture and taste of the bread are realized.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 25, 2021
    Inventors: Yan HONG, Qiaoting QI, Zhengbiao GU, Li CHENG, Zhaofeng LI, Caiming LI
  • Publication number: 20210010044
    Abstract: The disclosure relates to an enzymatic preparation method of inclusion complexes of tributyrin, and belongs to the technical field of oil microencapsulation. The disclosure combines enzymatic synthesis of cyclodextrin and inclusion of tributyrin with cyclodextrin, including enzymatic preparation of cyclodextrin with a CGT enzyme. Tributyrin is added in the preparation process; after reaction, Tween is added, and homogenization and spray drying are carried out. The effect of the finally obtained tributyrin powder is much better than that of single inclusion of tributyrin with cyclodextrin. The disclosure is simple in process, low in cost and convenient in operation; reaction processes are free of toxicity and pollution; there are no toxic reagent residues; the inclusion effect is obvious, and better utilization of a nutritional additive tributyrin in actual production is facilitated.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Inventors: Caiming LI, Zhaofeng LI, Shuangdi CHEN, Zhengbiao GU, Yan FENG, Zexi LI, Li CHENG, Yan HONG
  • Publication number: 20200283546
    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: Application
    Filed: May 27, 2020
    Publication date: September 10, 2020
    Inventors: Zhaofeng LI, Zhengbiao GU, Yang LI, Caiming LI, Li CHENG, Yan HONG
  • Publication number: 20200239750
    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: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: Li Cheng, Zhengbiao Gu, Yong Gu, Zhaofeng Li, Yan Hong, Caiming Li
  • Publication number: 20200157592
    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: Application
    Filed: January 20, 2020
    Publication date: May 21, 2020
    Inventors: Zhaofeng LI, Zhengbiao GU, Zhe WANG, Caiming LI, Sijia XU, Li CHENG, Yan HONG
  • Publication number: 20200121609
    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: Application
    Filed: December 19, 2019
    Publication date: April 23, 2020
    Inventors: Yan HONG, Min JIANG, Zhengbiao GU, Li CHENG, Zhaofeng LI, Caiming LI
  • Publication number: 20190352686
    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: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Zhaofeng LI, Zhengbiao GU, Zhe WANG, Caiming LI, Sijia XU, Li CHENG, Yan HONG
  • Patent number: 10483820
    Abstract: An induction motor stator encapsulate method, including arranging a stator of an induction motor in a case of the induction motor, wherein the stator comprises a stator core and a stator winding surrounding the stator core; filling a first encapsulating material into the case for forming a first insulation layer, wherein the first insulation layer directly covers the stator winding; and filling a second encapsulating material into the case for forming a second insulation layer, wherein the second insulation layer covers the first insulation layer; wherein a shrink rate of the first encapsulating material is smaller than a shrink rate of the second encapsulating material.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 19, 2019
    Assignee: Shanghai XPT Technology Limited
    Inventors: Miao Luo, Jifei Ma, Kangjun Luo, Zhaofeng Li, Bohan Yang
  • Publication number: 20190311175
    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: Application
    Filed: April 21, 2017
    Publication date: October 10, 2019
    Inventors: Dapeng Zhang, Feipeng Shang, Zhaofeng Li
  • Patent number: 10392640
    Abstract: Disclosed is a method for modifying starch to slow down the digestion rate of modified starch. The present invention utilizes two-stage GBE treatment to convert the long straight-chain starch molecules into highly branched molecules with compact structures so as to decrease the digestion rate of the starch. During the two-stage treatment, granular starch was first treated with GBE, the treated starch was gelatinized in boiling water, and the gelatinized starch was treated with GBE for a second time, leading to an enhanced effect of GBE modification. Compared with the one-staged GBE modification, the two-stage GBE modification can further increase the content of slowly digestible starch in the modified starch and thus decrease the digestion rate of starch.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 27, 2019
    Assignee: Jiangnan University
    Inventors: Zhaofeng Li, Zhengbiao Gu, Junyan Ren, Caiming Li, Li Cheng, Yan Hong
  • Publication number: 20190177758
    Abstract: Disclosed is a method for modifying starch to slow down the digestion rate of modified starch. The present invention utilizes two-stage GBE treatment to convert the long straight-chain starch molecules into highly branched molecules with compact structures so as to decrease the digestion rate of the starch. During the two-stage treatment, granular starch was first treated with GBE, the treated starch was gelatinized in boiling water, and the gelatinized starch was treated with GBE for a second time, leading to an enhanced effect of GBE modification. Compared with the one-staged GBE modification, the two-stage GBE modification can further increase the content of slowly digestible starch in the modified starch and thus decrease the digestion rate of starch.
    Type: Application
    Filed: July 12, 2018
    Publication date: June 13, 2019
    Applicant: Jiangnan University
    Inventors: Zhaofeng Li, Zhengbiao Gu, Junyan Ren, Caiming Li, Li Cheng, Yan Hong
  • Publication number: 20190058369
    Abstract: An induction motor stator encapsulate method, including arranging a stator of an induction motor in a case of the induction motor, wherein the stator comprises a stator core and a stator winding surrounding the stator core; filling a first encapsulating material into the case for forming a first insulation layer, wherein the first insulation layer directly covers the stator winding; and filling a second encapsulating material into the case for forming a second insulation layer, wherein the second insulation layer covers the first insulation layer; wherein a shrink rate of the first encapsulating material is smaller than a shrink rate of the second encapsulating material.
    Type: Application
    Filed: May 29, 2018
    Publication date: February 21, 2019
    Inventors: Miao Luo, JIFEI MA, Kangjun Luo, Zhaofeng Li, Bohan Yang
  • Publication number: 20190024460
    Abstract: An anti-collapse jet grouting drill bit with bi-directional rib wings, and a grouting consolidation including: a grouting pump connected to a high-pressure pipeline, which connects to an underground drill rig; an outer flat drill rod, connected with the underground drill rig; 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 which connects to 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 rib wing drill bit, while the underground jet drill rig is rotated by the force of outer flat drill rod. The rotation of the jet slurry and the rib wings, repairs the hole wall by cutting chippings or squeezing the chippings back into the hole wall.
    Type: Application
    Filed: July 11, 2016
    Publication date: January 24, 2019
    Applicant: 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
  • Publication number: 20180269740
    Abstract: An installation system of inverter wires and motor wires includes a plurality of positioning modules, a driving device and a control unit. Each positioning module includes a positioning unit and a pressure sensor. The positioning unit corresponds to a fixing hole of a motor wire of a motor. The pressure sensor is arranged on the positioning unit and configured to sense a pressure applied from an inverter wire of an inverter. The driving device is configured to drive the positioning unit to penetrate through or away from the fixing hole of the motor wire according to whether a pressure applied from the inverter wire is greater than a predetermined value, such that a fixing hole of the inverter wire is able to be aligned with the fixing hole of the motor wire and the fixing hole of the junction block.
    Type: Application
    Filed: September 21, 2017
    Publication date: September 20, 2018
    Inventors: Zhaofeng Li, Jifei Ma, Kangjun Luo, Miao Luo, Bohan Yang
  • Publication number: 20050108820
    Abstract: The present invention provides a sanitary cleaning device or apparatus that includes a basin, a temperature controller, and a flow controller. The temperature controller supplies water at a predetermined temperature to the flow controller, while the flow controller manages the water flow to a sprayer located in the basin. The present invention also provides a flow controller connected to a transversely-oscillating sprayer and a longitudinally-oscillating sprayer, both located in the basin. Furthermore, a water distributor may be used to divide the flow between the transversely-oscillating sprayer and the longitudinally-oscillating sprayer. A housing may be disposed on the rear portion of the rim of the basin to house the temperature controller, the flow controller, and the water distributor. The present invention may also include a cover for the basin and a sitting ring for the basin rim.
    Type: Application
    Filed: July 13, 2004
    Publication date: May 26, 2005
    Inventor: Zhaofeng Li