Patents Assigned to National Taiwan University of Science and Technology
  • Patent number: 11964428
    Abstract: The present invention provides a bottom plate of a resin tank for three-dimensional printing, which is manufactured through the following steps: substrate surface roughening step: treating the upper surface of a transparent substrate by using a plasma, or disposing a composite film on the upper surface of the transparent substrate to form a non-smooth surface structure having pores; substrate surface modification step: sequentially performing an activation treatment and a fluorination treatment on the upper surface of the transparent substrate; and stabilizer filling step: applying a stabilizer to the upper surface of the transparent substrate to fill the stabilizer penetrates into the pores on the upper surface of the transparent substrate. The low surface energy film reduces the adhesion of the hardened photosensitive material, and the stabilizer maintains the structure of the low surface energy film, so that the resin tank bottom plate has both oleophobic and hydrophobic properties.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: April 23, 2024
    Assignee: National Taiwan University of Science and Technology
    Inventors: Jeng-Ywan Jeng, Ming-Hua Ho, Ping-Hsun Tsai
  • Patent number: 11952484
    Abstract: An electrical responsive graphene-PVDF material and the manufacturing method thereof is disclosed in the present invention. The method includes three steps. Firstly, prepare a mother solution of PVDF. Then, add graphene powders into the mother solution of PVDF to prepare a graphene-PVDF slurry. At last, remove the solvent from the graphene-PVDF slurry to directly form an electrical responsive graphene-PVDF material. Due to the ability of transforming the non-electrical energy into the electrical energy, the electrical responsive graphene-PVDF material can be formed for many different applications in the form of individual film or of film with a substrate via various film formation methods.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: April 9, 2024
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Wei-Sung Hung, Jian-Xiang Huang
  • Patent number: 11952469
    Abstract: The present disclosure provides a method for preparing a hydrogel composition with thermos-sensitive and ionic reversible properties and the hydrogel composition prepared by the method. Related application products of the hydrogel composition of the present disclosure include wound dressings, drug carriers, three-dimensional cellular scaffolds, soluble microspheres, and cell capture and release systems, wherein the hydrogel composition with thermos-sensitive and ionic reversible properties has good in vitro and in vivo stability and high biocompatibility, and is non-toxic. The hydrogel composition can be removed and replaced by washing with metal chelating aqueous solution at low temperature.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 9, 2024
    Assignee: National Taiwan University of Science and Technology
    Inventors: Hsieh-Chih Tsai, Shuian-Yin Lin, Hsiao-Ying Chou
  • Patent number: 11932931
    Abstract: The present invention relates to a hydrophilic metal thin film, which is formed by stacking a plurality of columnar structures. A plurality of tetrahedral structures is on the surface of the hydrophilic metal film, which is formed on the top of the columnar structures. The width of the tetrahedral structures is 15 nm to 120 nm. The hydrophilic metal thin film comprises: 35 to 95 at % of iron, 5 to 20 at % of chromium. The above-mentioned hydrophilic metal thin film is formed by magnetron sputtering method under the working pressure of argon gas ranging from 6 mTorr to 13 mTorr, and the sputtering time exceeds 20 minutes.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: March 19, 2024
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Pak-Man Yiu, Jhen-De You, Jinn Chu, Sung-Tsun Wang
  • Publication number: 20240085369
    Abstract: Disclosed is a self-powered formaldehyde sensing device, comprising: a triboelectric material electrode layer including a first substrate and a first electrode layer formed on the first substrate; a triboelectric material dielectric layer including a second substrate, a second electrode layer formed on the second substrate, a dielectric reacting layer formed on the second electrode layer, and a reaction modification layer formed on the dielectric reacting layer to surface-modify the dielectric reacting layer, the reaction modification layer being a phosphomolybdic acid complex (cPMA) layer, the phosphomolybdic acid complex of the phosphomolybdic acid complex layer being obtained by dissolving 4,4?-bipyridine (BPY) in isopropanol (IPA) and then mixing with phosphomolybdic acid (PMA) solution; an elastic spacer; and an external circuit.
    Type: Application
    Filed: December 21, 2022
    Publication date: March 14, 2024
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chih-Yu Chang, Chun-Yi Ho, Yu-Hsuan Cheng, Ying-Ying Chen
  • Patent number: 11898010
    Abstract: Present invention is related to a polyimide of formula as following: and a ketone-containing alicyclic dianhydride of formula as following: wherein: R1, R2, R3, R4 denote hydrogen atom or carbon containing functional group with carbon number at a range of 1-4; R5 denotes diamine group; and n equals to any positive integer.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: February 13, 2024
    Assignee: National Taiwan University of Science and Technology
    Inventors: Jyh-Chien Chen, Hsiang Jung Lee, Kai-Cheng Zhong
  • Publication number: 20240040933
    Abstract: The present invention discloses a metal-free perovskite film and metal-free perovskite piezoelectric nanogenerators comprising the film. The metal-free perovskite film is organic, lead-free and metal-free. The open-circuit voltage of the metal-free perovskite piezoelectric nanogenerators can reach 9˜16 V and the short-circuit current of the metal-free perovskite piezoelectric nanogenerators can reach 38˜55 nA. Also, the metal-free perovskite piezoelectric nanogenerators can be used as self-powered strain sensor of human-machine interface application and be adopted in in vitro electrical stimulation devices.
    Type: Application
    Filed: November 29, 2022
    Publication date: February 1, 2024
    Applicants: NATIONAL CENTRAL UNIVERSITY, NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Po-Kang YANG, Meng-Lin TSAI, Han-Song WU, Shih-Min WEI, Shih-Min HUANG
  • Publication number: 20240005635
    Abstract: An object detection method and an electronic apparatus are provided. A processor is configured to perform the following. An original image is received. A plurality of initial feature layers of different scales is extracted from the original image. A plurality of fused feature layers of different scales is obtained through an interpolation and an addition operation based on the initial feature layers. The fused feature layers are respectively input into corresponding detection heads to obtain a bounding box location probability distribution through a bounding box regression branch of the detection head and obtain a classification probability distribution through a classification branch of the detection head.
    Type: Application
    Filed: August 26, 2022
    Publication date: January 4, 2024
    Applicant: National Taiwan University of Science and Technology
    Inventors: Jing-Ming Guo, Jr-Sheng Yang, Hung-Wei Wu
  • Patent number: 11856694
    Abstract: The disclosure provides a circuit substrate and a method for manufacturing the same. The circuit substrate includes a wiring and a substrate having a base region and a circuit region. The base region having a first pattern is constituted by a first thermoplastic material. The circuit region having a second pattern is constituted by a second thermoplastic material. The first pattern has a portion opposite to the second pattern. The wiring is formed on the circuit region along the second pattern. The first thermoplastic material is different from the second thermoplastic material, and the second thermoplastic material includes a catalyst particle.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: December 26, 2023
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chen-Hao Wang, Hsueh-Yu Chen, Guan-Cheng Tong
  • Patent number: 11848444
    Abstract: A preparation method of a positive electrode material of a lithium battery is provided, including mixing a compound containing at least one ethylenically-unsaturated group and one carbonyl group or a derivative thereof and a Ni-rich oxide of lithium and transition metal to react. The compound containing at least one ethylenically-unsaturated group and one carbonyl group is selected from a group consisting of a maleimide-based compound, an acrylate-based compound, a methacrylate-based compound, an acrylamide-based compound, a vinylamide-based compound, and a combination thereof, and the Ni-rich oxide of lithium and transition metal is represented by formula I, LiNixMyO2 ??Formula I wherein x+y=1, 1>x?0.5, and M is at least one transition metal element except Ni.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 19, 2023
    Assignee: National Taiwan University of Science and Technology
    Inventors: Fu-Ming Wang, Nan-Hung Yeh, Laurien Merinda, Xing-Chun Wang
  • Patent number: 11848628
    Abstract: A flexible clean energy power generation device with high power efficiency, which is a multi-film structure, includes an internal conductive support layer and an ion transport layer. The internal conductive support layer is formed by coating a conductive material onto a hydrophilic substrate; the ion transport layer is formed by coating a polyelectrolyte onto an outer side of the internal conductive support layer. After a solution is dropped on the device, the solution produces a capillary pressure difference by capillary action and evaporation phenomena to drive water molecules and counterions of the solution to move from a wet side to a dry side, thus producing a potential difference. Without an external pressure, the device uses a layered two-dimensional conductive material together with a polyelectrolyte, realizing a self-electrokinetic power generation with high energy output and long-life by capillary action and evaporation phenomena with using pure aqueous solution or other electrolyte solutions.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: December 19, 2023
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Li-Hsien Yeh, Mengyao Gao, Jie-Yu Yang
  • Patent number: 11839452
    Abstract: A non-contact blood pressure measurement system and a non-contact blood pressure value calculation method thereof are disclosed. The non-contact blood pressure measurement system includes a measurement module, a signal processing module, and a calculation module. The measurement module measures a physiological signal of a subject being tested in a non-contact manner. The signal processing module is used to obtain a forward pressure wave and a backward pressure wave according to the physiological signal of the subject being tested. The calculation module is used to find out a reflected pulse transit time between the forward pressure wave and the backward pressure wave so as to substitute the reflected pulse transit time and a plurality of correction parameters into a blood pressure algorithm formula to calculate an estimated diastolic blood pressure and an estimated systolic blood pressure of the subject being tested.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: December 12, 2023
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chao-Hsiung Tseng, Tzu-Jung Tseng
  • Patent number: 11826581
    Abstract: A light supply method is provided. The light supply method includes: providing a first driving signal in a first time interval by a driver and providing a first time-varying light by a light source module in response to the first driving signal; providing a second driving signal in a second time interval after the first time interval by the driver and providing a first fixed light by the light source module in response to the second driving signal; and providing a third driving signal by the driver in a third time interval after the second time interval and providing a second time-varying light by the light source module in response to the third driving signal.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 28, 2023
    Assignee: National Taiwan University of Science and Technology
    Inventor: Chien-Yu Chen
  • Patent number: 11831244
    Abstract: A resonant converter having a pre-conduction mechanism for realizing a wide output voltage range is provided. The resonant converter includes a first circuit and a second circuit. The first circuit includes a plurality of primary-side switches. The plurality of primary-side switches includes a first high-side switch, a second high-side switch, a first low-side switch and a second low-side switch. The second circuit includes a plurality of secondary-side switches. The plurality of secondary-side switches includes a third high-side switch, a fourth high-side switch, a third low-side switch and a fourth low-side switch. When the second low-side switch and the first low-side switch are turned on and a current time reaches a preset on time, the fourth high-side switch and the third low-side switch are turned on.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: November 28, 2023
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jing-Yuan Lin, Hsuan-Yu Yueh, Yi-Feng Lin, Che-Yu Chang
  • Patent number: 11821234
    Abstract: A seismic isolation device comprises an isolation support and an inerter unit arranged on the side of the isolation support, the isolation support having an upper plate and a lower plate, the inerter unit having a rotating rod extending to the side of the lower plate and a flywheel linked with the rotating rod, wherein when the upper and lower plates of the present invention undergo relative displacement due to the occurrence of an earthquake, the inerter unit provide an inertance to reduce the displacement reaction, thereby providing better seismic isolation effect.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: November 21, 2023
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ting-Yu Hsu, Shiang-Jung Wang
  • Patent number: 11807790
    Abstract: The present invention is related to a production method of a photoluminescence material by micro-plasma treatment for degrading plastic piece into multiple smaller molecular, a graphene quantum dot and the composite thereof. By using micro-plasma treatment, the production method provided by the present invention consumes very little energy and the processing steps is simple and efficiency without the existence of any organic solvent. The products obtained by the said treatment is high valued graphene quantum dot and graphene quantum dot composite with excellent photoluminescence ability for at least white, blue, green, cyan or yellow colors.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: November 7, 2023
    Assignee: National Taiwan University of Science and Technology
    Inventors: Ren-Jie Weng, Wei-Hung Chiang
  • Publication number: 20230349156
    Abstract: A retrofitting method for a beam with an opening is disclosed. The retrofitting method provides a hoop cooperated with an inclined stirrup to form a reinforcement set. The hoop is used to enclose the opening; and the reinforcement set may be selectively adjusted according to the distance between the edge of opening and a column face. The retrofitting method and reinforcement set are not only suitable for openings located in the non-plastic hinge zone of the beam, but also suitable for the openings located in the plastic hinge zone.
    Type: Application
    Filed: August 31, 2022
    Publication date: November 2, 2023
    Applicant: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chien-Kuo Chiu, Min-Yuan Cheng, Chieh-Tzu Chou
  • Patent number: 11795339
    Abstract: The present invention provides a method for 3D inkjet printing, which comprises: a preheating step: an external heating source is used to heat a main body layer composed of a first composition to a first temperature, wherein the main body layer has a thickness of 10 ?m to 500 ?m and a unit density of 0.1 to 1.0 g/cm3, and the first temperature is less than the melting point of the first composition; a heating step: a second composition is applied to the surface of the first composition at the first temperature of the composite to proceed an exothermic cross-linking polymerization, so that the main body layer is heated to a second temperature to become a molten state; and a cooling step: the main body layer in the molten state is cooled down and solidified to form.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: October 24, 2023
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chorng-Shyan Chern, Jeng-Ywan Jeng, Ya-Ting Chang, Cheng-Che Lu
  • Patent number: 11789297
    Abstract: An optical phase shifter array includes: 1st˜nth optical-splitting elements, wherein each has an input end, a first output end and a second output end, and the input end of the 1st optical-splitting element receives an input light and outputs an evenly distributed optical signal to the optical-splitting element of the next stage, and n is a positive integer above 1; a plurality of first optical waveguides respectively connected to the input end of the optical-splitting element odd-numbered of the next stage and the first output end of the optical-splitting element of the previous stage; a plurality of second optical waveguides respectively connected to the input end of the optical-splitting-element even-numbered of the previous stage; and phase shifters of the 1st to the kth stage, which makes the optical signal passing through the optical waveguides produce a phase shift by heating or electro-optic effects.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 17, 2023
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: San-Liang Lee, Tsung-Han Lee, Chia-Hsuan Yang
  • Patent number: 11755058
    Abstract: A brain-computer interface device includes a plurality of pre-amplifiers are configured to amplify physiological signals corresponding to channels to output amplified signals; a multiplexer is configured to output, according to a control signal and a clock signal, the amplified signals; an analog-to-digital converter is configured to convert, according to the clock signal including clocks, the output of the multiplexer into a digital signal including a plurality of digital values corresponding to the clocks, wherein each of the digital values includes bit values; a memory is configured to store the digital signal; and a processor s configured to: add a header corresponding to one channel to each of the digital values according to the clock signal; and delete bit values of higher bits of each of the digital values corresponding to the same channel that are the same as those of a previous digital value, to output a compressed signal.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: September 12, 2023
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hong-Wen Tsai, Yue-Feng Wu