Patents by Inventor Li Yuan
Li Yuan 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: 20200239409Abstract: A method is provided to purify [F-18]FEONM under a high pressure. The synthesis processes of [F-18]FEONM are integrated. An isolation process of non-toxic radio-high performance liquid chromatography (radio-HPLC) is used to purify the crude product. The method integrates a convention [F-18]FDG synthesizer and a novel radio-HPLC system together in a heat chamber. After radiofluorinating the precursor, the reaction product is purified with an alumina solid-phase column in advance to obtain the crude product while fluorine-18 is removed. Then, diphenyl semipreparative HPLC column is used for a final purification. A non-toxic solvent is used for mobile-phase eluting to remove the unreacted precursor and the phase-transfer solvent. The radiofluorination has a reaction yield about 50 percent (%). The method has an uncorrected radiochemical yield of 10˜20%. Both of the radio-HPLC and the radio-thin layer chromatography (radio-TLC) have radiochemical purity higher than 95%.Type: ApplicationFiled: January 30, 2019Publication date: July 30, 2020Inventors: Yean-Hung Tu, Li-Yuan Huang, Jenn-Tzong Chen, Tsai-Yueh Luo, Shiou-Shiow Farn, Wuu-Jyh Lin
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Patent number: 10727569Abstract: A mobile device includes a first circuit board, a metal frame, an extension radiation element, an electronic component, a second circuit board, and an RF (Radio Frequency) module. The first circuit board includes a system ground plane. The metal frame includes a first portion coupled to the system ground plane. A clearance region is formed between the first portion and the system ground plane. The first portion and the extension radiation element are both coupled to a feeding point. An antenna structure is formed by the first portion and the extension radiation element. The second circuit board is coupled to the electronic component. The electronic component and the second circuit board are both adjacent to the first portion. The RF module is coupled to the feeding point, so as to excite the antenna structure.Type: GrantFiled: October 3, 2017Date of Patent: July 28, 2020Assignee: HTC CorporationInventors: Tiao-Hsing Tsai, Chien-Pin Chiu, Hsiao-Wei Wu, Shen-Fu Tzeng, Yi-Hsiang Kung, Li-Yuan Fang
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Publication number: 20200231742Abstract: A preparation method of thermadapt shape memory polymers includes: (1) synthesis of pendant hydroxyl groups functionalized epoxy oligomer using epoxy resin and alcohol amine; (2) synthesis of alkoxyl groups terminated silane crosslinking agent by isocyanate silane coupling agent and diamine; (3) crosslinked shape memory polymers were prepared by condensation reaction of pendant hydroxyl groups functionalized epoxy oligomer and alkoxyl groups terminated silane crosslinking agent. The thermadapt shape memory polymers show high glass transition temperatures and high tensile strength. The original shape of thermadapt shape memory polymers can be reconfigured to a new permanent shape as needed, and thus effectively solving the bottleneck problems of reprocessing or reshape in the traditional crosslinked polymers once after molding.Type: ApplicationFiled: September 9, 2019Publication date: July 23, 2020Inventors: Aijuan GU, Zhenjie DING, Guozheng LIANG, Li YUAN
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Patent number: 10714811Abstract: An antenna device, including a circuit board, electronic components, a functional component module, an antenna module and a feed line, is provided. The electronic components are disposed on the circuit board and include a microprocessor and a wireless communication chip. The functional component module includes a carrier and a metal member disposed on the carrier. The antenna module includes a feed point, a ground point and a radiator, the feed and ground points are disposed on the carrier and electrically connected to both sides of the metal member respectively, and the ground point is electrically connected to the ground layer of the circuit board. The radiator includes at least a part of the metal member, while the feed line can transmit a wireless signal to the feed point to feed into the radiator. Therefore, the metal member can serve as the radiator to conserve the space of accommodating another radiator.Type: GrantFiled: January 14, 2019Date of Patent: July 14, 2020Assignee: HTC CORPORATIONInventors: Tiao-Hsing Tsai, Chien-Pin Chiu, Hsiao-Wei Wu, Li-Yuan Fang, Yi-Hsiang Kung
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Publication number: 20200220104Abstract: A light-emitting device includes a light-emitting layer, an elastic layer and a first carrier layer configured to carry the light-emitting layer. The first carrier layer has a through groove in which a light-emitting region of the light-emitting layer is located. The light-emitting device further includes a first carrier support layer stacked with the light-emitting layer, and the through groove of the first carrier layer is sealed by the first carrier support layer.Type: ApplicationFiled: March 20, 2020Publication date: July 9, 2020Applicant: Yungu (Gu'an) Technology Co., Ltd.Inventors: Lele HU, Li YUAN, Gang WANG, Wei TIAN, Ronghui QIAN
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Patent number: 10700716Abstract: A wireless communication device is provided. The wireless communication device includes a housing, a circuit board, a radio frequency module and an antenna. The housing has a frame and a back cover to define a receiving space. The circuit board is disposed in the receiving space, and defines a clearance area from the housing in the receiving space. The circuit board includes a ground terminal, a first feeding point, and a second feeding point. The antenna includes at least one metal conductor coupled to the first feeding point and the second feeding point, respectively, to provide a low frequency resonant path, a first middle frequency resonant path, a second middle frequency resonant path and a high frequency resonant path.Type: GrantFiled: January 4, 2019Date of Patent: June 30, 2020Assignee: HTC CORPORATIONInventors: Tiao-Hsing Tsai, Chien-Pin Chiu, Hsiao-Wei Wu, Yi-Hsiang Kung, Shen-Fu Tzeng, Li-Yuan Fang
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Patent number: 10684975Abstract: An integrated circuit comprising a plurality of one-hot-bit multiplexers interconnected to form a switch interconnect network (e.g., hierarchical and/or mesh type networks), wherein each of the plurality of one-hot-bit multiplexers includes an output, inputs, and input selects, wherein each one-hot-bit multiplexer of the plurality of one-hot-bit multiplexers are capable of receiving: (i) an input select signal to select one of the plurality of inputs, (ii) an operational input signal at a selected input during a normal operation of the switch interconnect network, and (iii) an initialization input signal at the selected input during an initialization operation.Type: GrantFiled: October 30, 2017Date of Patent: June 16, 2020Assignee: Flex Logix Technologies, Inc.Inventors: Cheng C. Wang, Fang-Li Yuan
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Publication number: 20200150404Abstract: An optical device including a first substrate, a light source, a second substrate, an image capturing device, a lens module and a lens holder is provided. The light source outputs a first light beam. The second substrate includes a first surface and a second surface opposite to the first surface and closer to the first substrate. A scattered light beam which is generated by the first light beam entering an object touching the first surface of the second substrate and scattered in the object is a second light beam. The image capturing device receives a third light beam. The third light beam is the second light beam normally incident to the second surface and transmitted to the image capturing device. The lens module focuses the third light beam to be captured by the image capturing device. The lens holder is located between the light source and the image capturing device.Type: ApplicationFiled: January 15, 2020Publication date: May 14, 2020Applicant: Novatek Microelectronics Corp.Inventors: Li-Yuan Chang, I-Hsiu Chen, Chin-Hui Huang
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Publication number: 20200151483Abstract: An embodiment of the invention provides an optical device including a first substrate, a light source, a second substrate, an image capturing device, a lens module and a lens holder. The light source outputs a first light beam. The second substrate includes a first surface and a second surface opposite to the first surface and closer to the first substrate. A scattered light beam which is generated by the first light beam entering an object touching the first surface of the second substrate and scattered in the object is a second light beam. The image capturing device receives a third light beam. The third light beam is the second light beam normally incident to the second surface and transmitted to the image capturing device. The lens module focuses the third light beam to be captured by the image capturing device.Type: ApplicationFiled: January 15, 2020Publication date: May 14, 2020Applicant: Novatek Microelectronics Corp.Inventors: Li-Yuan Chang, I-Hsiu Chen, Chin-Hui Huang
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Publication number: 20200128958Abstract: The disclosure provides a smart liquor cabinet and a management method for the liquor cabinet. In the management method, a voice command is received and an intent of the voice command is determined. If the intent of the voice command is related to a remaining space of the liquor cabinet, then the remaining space with no liquor in the liquor cabinet is determined. If the intent of the voice command is related to an inventory situation of the liquor cabinet, then the inventory situation of stored liquor in the liquor cabinet is determined. The response of the intent is outputted. The response is related to the remaining space or the inventory situation. In this way, the liquor and space in the liquor cabinet may be counted easily and quickly.Type: ApplicationFiled: May 24, 2019Publication date: April 30, 2020Applicant: COMPAL ELECTRONICS, INC.Inventors: Yu-Chung Lo, Kai-Yi Chen, Li-Yuan Hsu, Yi-Wen Wang, Hsiu-Hang Lin
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Patent number: 10626228Abstract: Disclosed are a lithium salt/polyacrylonitrile/thermosetting resin composite material and a preparation method therefor. 100 parts of polyacrylonitrile and 550-1100 parts of N,N-dimethyl formamide by mass are stirred at a temperature of 25° C.-80° C., and a uniform and transparent polyacrylonitrile solution is obtained; further, 8-36 parts of a lithium salt is added; and the mixture is stirred until a uniform and transparent lithium salt/polyacrylonitrile solution is obtained. A heat-curable resin is added to the lithium salt/polyacrylonitrile solution, and is uniformly mixed. The obtained composite solution is made into a film, and a lithium salt/polyacrylonitrile/thermosetting resin composite material is then obtained after curing and post-treatment.Type: GrantFiled: November 29, 2016Date of Patent: April 21, 2020Assignee: SOOCHOW UNIVERSITYInventors: Guozheng Liang, Sheng Sun, Aijuan Gu, Li Yuan
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Publication number: 20200073337Abstract: A wearable electronic device includes a body having a first battery and a port electrically connected to the first battery, a band having a connector and a set of first conductors electrically connected to the connector, and a belt having at least one second battery, a set of second conductors and an input port electrically connected to the second battery. The band is connected to the port via the connector so as to be electrically connected to the body. The belt may removably attach to an outer surface of the band, and the second battery may transmit power to the first battery by combining the two sets of conductors. When the belt is removed, the power consumed by the second battery is replenished by an external power source connected to the input port, mastering the information at any time.Type: ApplicationFiled: May 20, 2019Publication date: March 5, 2020Inventors: DANIEL WANG, LI-YUAN WANG
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Publication number: 20200062888Abstract: The present invention discloses a biomass-based epoxy resin and preparation method thereof; under conditions of N,N-dimethylformamide as a catalyst, 2,5-furandicarboxylic acid and thionyl chloride are acylated to obtain 2,5-furan diformyl chloride; then it is dissolved with dichloromethane; under tertiary amine conditions an esterification reaction takes place, and bis(4-allyl-2-methoxyphenyl)furan-2,5-dicarboxylic acid ester is thus obtained; by means of meta-chloroperoxybenzoic acid, its unsaturated double bond is epoxidized to obtain a biomass-based epoxy resin. The process of the present invention is simple; the raw materials come from biomass 2,5-furandicarboxylic acid and eugenol; in comparison with bisphenol-A epoxy resin based on petroleum and coal resources, the raw materials are green and renewable, and are advantageous to reducing the consumption of renewable resources with regard to polymeric material.Type: ApplicationFiled: December 3, 2016Publication date: February 27, 2020Inventors: Aijuan GU, Jiatao MIAO, Guozheng LIANG, Li YUAN
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Publication number: 20200062903Abstract: The present invention discloses a modified bismaleimide resin and preparation method thereof; under conditions of N,N-dimethylformamide serving as a catalyst, biomass-based 2,5-furandicarboxylic acid and thionyl chloride are acylated to obtain 2,5-furan diformyl chloride, which is then dissolved in dichloromethane with a biomass-based eugenol; under tertiary amine conditions an esterification reaction takes place, and a fully biomass-based bis(4-allyl-2-methoxyphenyl)furan-2,5-dicarboxylic acid ester is thus obtained; same is used for preparing a modified bismaleimide resin.Type: ApplicationFiled: December 3, 2016Publication date: February 27, 2020Inventors: Aijuan GU, Jiatao MIAO, Guozheng LIANG, Li YUAN
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Patent number: 10539765Abstract: An optical device including a first substrate, a light source, a second substrate, an image capturing device, a microstructure layer, and an infrared pass layer is provided. The light source is disposed on the first substrate. The second substrate is disposed above the first substrate. The second substrate includes a first surface and a second surface opposite to the first surface. The image capturing device is disposed on the first substrate to receive a light beam, which is originated from scattered light beams scattered by an object touching the first surface of the second substrate. The microstructure layer is disposed on the first surface of the second substrate. The microstructure layer is adapted to increase a light beam, which is scattered by the object and transmitted to the image capturing device. The infrared pass layer is adapted to pass the infrared light.Type: GrantFiled: October 14, 2016Date of Patent: January 21, 2020Assignee: Novatek Microelectronics Corp.Inventors: Li-Yuan Chang, I-Hsiu Chen, Chin-Hui Huang
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Publication number: 20190309113Abstract: Disclosed are a flame-retardant bismaleimide resin and a preparation method thereof comprising: forming an eugenol salt suspensoid from a whole biomass eugenol in the present of a strong alkali metal base, adding dropwisely a solution of phosphorus oxychloride in methyl chloride to react to obtain a biomass-based phosphate flame-retardant; mixing bismaleimide, 2,2?-diallylbisphenol with the obtained phosphate, curing and posttreating to obtain the flame-retardant bismaleimide resin. Compared with petroleum-based bismaleimide resin, the flame-retardant bismaleimide resin prepared by the present invention is obtained from eugenol derived from biomass, and the raw material is green and renewable. It maintains mechanical properties and processing properties of the petroleum-based bismaleimide resin and has an excellent flame-retardant property.Type: ApplicationFiled: December 3, 2016Publication date: October 10, 2019Inventors: Aijuan GU, Jiatao MIAO, Guozheng LIANG, Li YUAN
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Patent number: 10344152Abstract: The present invention is related to a propylene-based injection molded composition made from a polymer blend comprising from 45 to 85 wt % of a polymer blend modifier having a weight average molecular weight of 10,000 to 100,000 g/mole and from 15 to 55 wt % of a propylene-based elastomer having a weight average molecular weight of from 100,000 to 300,000 g/mole, where the weight percent of the polymer blend modifier and the propylene-based elastomer are based on the total weight of the polymer blend. The polymer blend modifier comprises a first propylene-based polymer and a second propylene-based polymer, where the first and second propylene-based polymers are different and are individually selected from a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin.Type: GrantFiled: March 27, 2015Date of Patent: July 9, 2019Assignee: ExxonMobil Chemical Patents Inc.Inventors: Xin Chen, Ying Ying Sun, Yi Ping Ni, Pei Te Bao, Li Yuan, Jie Hui Xu
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Publication number: 20190144614Abstract: Disclosed are a lithium salt/polyacrylonitrile/thermosetting resin composite material and a preparation method therefor. 100 parts of polyacrylonitrile and 550-1100 parts of N,N-dimethyl formamide by mass are stirred at a temperature of 25° C.-80° C., and a uniform and transparent polyacrylonitrile solution is obtained; further, 8-36 parts of a lithium salt is added; and the mixture is stirred until a uniform and transparent lithium salt/polyacrylonitrile solution is obtained. A heat-curable resin is added to the lithium salt/polyacrylonitrile solution, and is uniformly mixed. The obtained composite solution is made into a film, and a lithium salt/polyacrylonitrile/thermosetting resin composite material is then obtained after curing and post-treatment.Type: ApplicationFiled: November 29, 2016Publication date: May 16, 2019Inventors: Guozheng LIANG, Sheng SUN, Aijuan GU, Li YUAN
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Publication number: 20190148817Abstract: An antenna device, including a circuit board, electronic components, a functional component module, an antenna module and a feed line, is provided. The electronic components are disposed on the circuit board and include a microprocessor and a wireless communication chip. The functional component module includes a carrier and a metal member disposed on the carrier. The antenna module includes a feed point, a ground point and a radiator, the feed and ground points are disposed on the carrier and electrically connected to both sides of the metal member respectively, and the ground point is electrically connected to the ground layer of the circuit board. The radiator includes at least a part of the metal member, while the feed line can transmit a wireless signal to the feed point to feed into the radiator. Therefore, the metal member can serve as the radiator to conserve the space of accommodating another radiator.Type: ApplicationFiled: January 14, 2019Publication date: May 16, 2019Inventors: Tiao-Hsing TSAI, Chien-Pin CHIU, Hsiao-Wei WU, Li-Yuan FANG, Yi-Hsiang KUNG
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Publication number: 20190140671Abstract: A wireless communication device is provided. The wireless communication device includes a housing, a circuit board, a radio frequency module and an antenna. The housing has a frame and a back cover to define a receiving space. The circuit board is disposed in the receiving space, and defines a clearance area from the housing in the receiving space. The circuit board includes a ground terminal, a first feeding point, and a second feeding point. The antenna includes at least one metal conductor coupled to the first feeding point and the second feeding point, respectively, to provide a low frequency resonant path, a first middle frequency resonant path, a second middle frequency resonant path and a high frequency resonant path.Type: ApplicationFiled: January 4, 2019Publication date: May 9, 2019Inventors: Tiao-Hsing TSAI, Chien-Pin CHIU, Hsiao-Wei WU, Yi-Hsiang KUNG, Shen-Fu TZENG, Li-Yuan FANG