Patents by Inventor Chang-Mou Wu
Chang-Mou Wu 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).
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Publication number: 20240072686Abstract: A cigarette filter-triboelectric nanogenerator (CF-TENG) which generates triboelectric power. The cigarette filter-triboelectric nanogenerator (GF-TENG) includes a positive triboelectric material made from recycled cigarette filters (CFs) and a negative triboelectric material made from plastic waste, wherein the cigarette filters were mixed with conductive materials. The cigarette-filter triboelectric nanogenerator (CF-TENG) device exhibits excellent electrical output performance.Type: ApplicationFiled: October 6, 2022Publication date: February 29, 2024Inventors: Chang-Mou Wu, Mohana Rani Gokana
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Patent number: 11621652Abstract: Present invention is related to an ultrathin triboelectric nanogenerator having a positive assembly layer and a negative assembly layer electrically connected together. The positive assembly layer comprises a positive layer and a first electrode. The negative assembly layer comprises a negative layer and a second electrode. The said first electrode and the said second electrode are electrically connected with each other. The positive layer could be a foam layer with under 90 ?m thickness and less than 60 ?m pore size. The present invention firstly provides the ultrathin triboelectric nanogenerator with PU foam as the positive layer which could achieve better electrical performance compared to any conventional triboelectric nanogenerator.Type: GrantFiled: September 24, 2021Date of Patent: April 4, 2023Assignee: National Taiwan University of Science and TechnologyInventors: Chang-Mou Wu, Mohana Rani Gokana
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Publication number: 20220390147Abstract: Present invention is related to a high performance photothermal conversion materials, membrane, layer structure and applications thereof. The said materials comprise an UV and infrared absorbed material and a visible light absorbed material with at least one of or both of these materials has photothermal conversion ability. These materials could be further produced as a porous membrane or foam layer with a plastic material. Further by layered with another hydrophilic fiber layer, a porous layer structure could be obtained by the present invention with high performance photothermal conversion, uni-direction water transportation and photocatalytic abilities. The present invention could absorb a wide range of light source (UV-to-vis-to-NIP) and convert to another energy like heat solving the insufficiency of conventional photothermal conversion material.Type: ApplicationFiled: September 8, 2021Publication date: December 8, 2022Inventors: Chang-Mou Wu, Saba Naseem, Tessema Aster Aberra
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Publication number: 20220278631Abstract: Present invention is related to an ultrathin triboelectric nanogenerator having a positive assembly layer and a negative assembly layer electrically connected together. The positive assembly layer comprises a positive layer and a first electrode. The negative assembly layer comprises a negative layer and a second electrode. The said first electrode and the said second electrode are electrically connected with each other. The positive layer could be a foam layer with under 90 ?m thickness and less than 60 ?m pore size. The present invention firstly provides the ultrathin triboelectric nanogenerator with PU foam as the positive layer which could achieve better electrical performance compared to any conventional triboelectric nanogenerator.Type: ApplicationFiled: September 24, 2021Publication date: September 1, 2022Inventors: Chang-Mou Wu, Mohana Rani Gokana
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Patent number: 10207490Abstract: An ultrafine fiber printing system contains a moving deck having a nozzle seat that is disposed on the moving deck. A pipe is installed in the nozzle seat, and a nozzle is disposed at the bottom end of the pipe. The upper portion and the lower portion of the pipe are combined with a heat dissipating unit and a heater respectively. The top end of the pipe is connected to a feed tube having an outer end connected with a thread squeezer. A printing platform is disposed around the moving deck. The nozzle is connected to a static electricity supply, and the fiber carrier is grounded. An electric field is formed between the nozzle and the fiber carrier. The droplets exported from the nozzle are stretched into ultrafine fibers to form a patterned fabric or product.Type: GrantFiled: September 22, 2016Date of Patent: February 19, 2019Assignee: National Taiwan University of Science and TechnologyInventors: Chang-Mou Wu, I-Ting Chen, Jo-Cheng Chiang
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Patent number: 10156027Abstract: An equipment of manufacturing a bundle of electrospun yarn has a vortex containing device and a bundles collecting device. The vortex containing device has a feeding end, an exporting end and a vortex generator. The vortex generator is mounted in and communicates with the vortex containing device to form a fluid vortex in the vortex containing device to provide a guiding force. The guiding force draws an electrospun fiber into the feeding end of the vortex containing device. The electrospun fiber is wound to form a bundle of electrospun yarn by the fluid vortex. The bundles collecting device is rotated to collect the bundle of electrospun yarn.Type: GrantFiled: November 9, 2015Date of Patent: December 18, 2018Assignee: National Taiwan University of Science and TechnologyInventors: Chang-Mou Wu, Kuo-Pin Cheng, Ching-Feng Li
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Patent number: 9897133Abstract: A carbon fiber washer is provided and includes a carbon fiber fabric made of a plurality of fiber bundles being woven, in which each of the plurality of fiber bundles is made of discontinuous fibers; the advantage of the carbon fiber washer of the present invention includes high temperature and fatigue resisting, and weather proofing. The structure of the carbon fiber washer is stable due to the use of discontinuous fibers; breakages of discontinuous fibers do not affect other unbroken discontinuous fibers, so that the structure of the carbon fiber washer would not be loosened or delaminated and the service life can be prolonged accordingly.Type: GrantFiled: April 18, 2016Date of Patent: February 20, 2018Assignee: LinkWin Technology Co., Ltd.Inventors: Yi-Ching Cheng, Chun-Han Lai, Po-Chen Sung, Chang-Mou Wu, Wen-You Lai, Po-Chun Lin
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Publication number: 20170298980Abstract: A carbon fiber washer is provided and includes a carbon fiber fabric made of a plurality of fiber bundles being woven, in which each of the plurality of fiber bundles is made of discontinuous fibers; the advantage of the carbon fiber washer of the present invention includes high temperature and fatigue resisting, and weather proofing. The structure of the carbon fiber washer is stable due to the use of discontinuous fibers; breakages of discontinuous fibers do not affect other unbroken discontinuous fibers, so that the structure of the carbon fiber washer would not be loosened or delaminated and the service life can be prolonged accordingly.Type: ApplicationFiled: April 18, 2016Publication date: October 19, 2017Inventors: Yi-Ching Cheng, Chun-Han Lai, Po-Chen Sung, Chang-Mou Wu, Wen-You Lai, Po-Chun Lin
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Publication number: 20170268130Abstract: An ultrafine fiber printing system contains a moving deck having a nozzle seat that disposed on the moving deck. A pipe is installed in the nozzle seat and a nozzle is disposed at the bottom end of the pipe. The upper portion and the lower portion of the pipe are combined with a heat dissipating unit and heater respectively. The top end of the pipe is connected to a feed tube having an outer end being connected with a thread squeezer. A printing platform is disposed around the moving deck. The nozzle is connected to a static electricity supply and the fiber carrier is grounded. An electric field is formed between the nozzle and the fiber carrier. The droplets exported from the nozzle are stretched into ultrafine fibers to form a patterned fabric or product.Type: ApplicationFiled: September 22, 2016Publication date: September 21, 2017Inventors: Chang-Mou Wu, I-Ting Chen, Jo-Cheng Chiang
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Patent number: 9708640Abstract: An electrospun nanofibrous membrane is sheet like and is formed by multiple glucose oxidase/potassium hexacyanoferrate(III) modified electrospun nanofibers. The glucose oxidase/potassium hexacyanoferrate(III) modified electrospun nanofibers are PVA electrospun nanofibers containing glucose oxidase and potassium hexacyanoferrate(III) homogeneously dispersed therein. The glucose oxidase/potassium hexacyanoferrate(III) modified electrospun nanofibers are PVA electrospun nanofibers and are cross-linked by glutaraldehyde vapor with ultrasonic energy assistance. Graphene modified PVA/GOx electrospun membranes were prepared to examine the immobilization mechanism between graphene and GOx. The electrochemical measurement results show that the sensitivities increased with increasing graphene concentrations up to 20 ppm. The highest sensitivity recorded 38.7 ?A/mM was for a PVA/GOx membrane with 20 ppm graphene representing a 109% increase over a membrane made without graphene.Type: GrantFiled: July 6, 2015Date of Patent: July 18, 2017Assignee: National Taiwan University of Science and TechnologyInventors: Chang-Mou Wu, Hsiu-An Yu, Chun-Chung Huang
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Publication number: 20170156338Abstract: Provided is a composite powder used for the visible light catalytic and anti-bacterial purposes. The composite powder includes a plurality of N-type semiconductor particles and a plurality of P-type semiconductor nano-particles. The P-type semiconductor nano-particles cover surfaces of the N-type semiconductor particles respectively. A weight ratio of the N-type semiconductor particles and the P-type semiconductor nano-particles is in a range of 1:0.1 to 1:0.5. A PN junction is provided between each of the N-type semiconductor particles and the corresponding P-type semiconductor nano-particles.Type: ApplicationFiled: March 10, 2016Publication date: June 8, 2017Inventors: Dong-Hau Kuo, Fu-An Yu, Yen-Rong Kuo, Yi-Yuan Yang, Jiunn-Yih Lee, Kuo-Pin Cheng, Chang-Mou Wu, Meng-Wei Ma, Kuan-Ting Chuang
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Patent number: 9514732Abstract: A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/?10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane.Type: GrantFiled: January 28, 2016Date of Patent: December 6, 2016Assignee: National Taiwan University of Science and TechnologyInventors: Chang-Mou Wu, Min-Hui Chou, Jiunn-Yih Lee
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Publication number: 20160267897Abstract: A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/-10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane.Type: ApplicationFiled: January 28, 2016Publication date: September 15, 2016Inventors: Chang-Mou Wu, Min-Hui Chou, Jiunn-Yih Lee
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Publication number: 20160153025Abstract: An electrospun nanofibrous membrane being sheet like and being formed by comprising multiple glucose oxidase/potassium hexacyanoferrate (III) modified electrospun nanofibers, wherein the glucose oxidase/potassium hexacyanoferrate (III) modified electrospun nanofibers are PVA electrospun nanofibers containing glucose oxidase and potassium hexacyanoferrate (III) homogeneously dispersed therein; and the glucose oxidase/potassium hexacyanoferrate (III) modified electrospun nanofibers are PVA electrospun nanofibers and are cross-linked by glutaraldehyde vapor with ultrasonic energy assistance. In the present invention, graphene modified PVA/GOx electrospun membranes were prepared to examine the immobilization mechanism between graphene and GOx. The electrochemical measurement results show that the sensitivities increased with increasing graphene concentrations up to 20 ppm. The highest sensitivity recorded 38.Type: ApplicationFiled: July 6, 2015Publication date: June 2, 2016Inventors: Chang-Mou Wu, Hsiu-An Yu, Chun-Chung Huang
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Publication number: 20160130728Abstract: An equipment of manufacturing a bundle of electrospun yarn has a vortex containing device and a bundles collecting device. The vortex containing device has a feeding end, an exporting end and a vortex generator. The vortex generator is mounted in and communicates with the vortex containing device to form a fluid vortex in the vortex containing device to provide a guiding force. The guiding force draws an electrospun fiber into the feeding end of the vortex containing device. The electrospun fiber is wound to form a bundle of electrospun yarn by the fluid vortex. The bundles collecting device is rotated to collect the bundle of electrospun yarn.Type: ApplicationFiled: November 9, 2015Publication date: May 12, 2016Inventors: Chang-Mou Wu, Kuo-Pin Cheng, Ching-Feng Li