Patents by Inventor Yu-Chin Hsu

Yu-Chin Hsu 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: 10819339
    Abstract: A capacitive touch sensing circuit includes a first switch to a fourteenth switch, an operational amplifier, a comparator, a detection capacitor, a feedback capacitor, an amplifier capacitor and a mutual inductance capacitor. The tenth switch is coupled between a first node and a second node respectively coupled to a negative input terminal and an output terminal of operational amplifier. The amplifier capacitor is coupled between a third node and a fourth node. The eleventh switch is coupled between the first node and the third node. The twelfth switch is coupled between the second node and the fourth node. The thirteenth switch is coupled between the third node and the second node. The fourteenth switch is coupled between the fourth node and the first node. The capacitive touch sensing circuit sequentially operates under a first charging phase, a first transfer phase, a second charging phase and a second transfer phase.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 27, 2020
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Kai Chang, Chih-Hsiung Chen, Yu-Chin Hsu
  • Patent number: 10793659
    Abstract: The present invention provides a water-soluble silicone macromer. The water-soluble silicone macromer has a general formula: E-(M1)x-(M2)y, wherein M1 is a repeating unit which is derived from a silicone containing monomer, M2 is a repeating unit which is derived from a first hydrophilic monomer, and E is an ethylenically unsaturated group. The amount of M1 is in a range of 30-60 wt % based on the total weight of the water-soluble silicone macromer, and the amount of M2 is in a range of 40-70 wt % based on the total weight of the water-soluble silicone macromer. A silicone hydrogel composition containing the water-soluble silicone macromer and a silicone hydrogel lens made of the silicone hydrogel composition are also provided herein.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 6, 2020
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Ting-Chun Kuan, Hsiang-Ho Kung, Min-Tzung Yeh, Ching-Wen Yang, Tsung-Kao Hsu
  • Publication number: 20200298218
    Abstract: A method of using biopolymer to synthesize titanium-containing silicon oxide material and applications thereof are disclosed. The method comprises steps: mixing a titanium source, a silicon source, an acid source, a base source, a biopolymer and a solvent to form an aqueous solution, and letting the aqueous solution react to form a semi-product; performing aging, solid-liquid separation and drying of the semi-product to obtain a dried solid; and performing calcination or extraction of the dried solid to obtain a titanium-containing silicon oxide material with a high specific surface area. The present invention adopts a biopolymer as the templating agent, which makes the fabrication process of titanium-containing silicon oxide material more environment-friendly. After calcination or extraction, the product still has superior catalytic activity, able to catalyze epoxidation of olefins and favorable for the production of epoxide.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 24, 2020
    Inventors: Yu-Chuan HSU, Pin-Hsuan HUANG, Chien-Chang CHIANG, Ying-Shih CHANG, Hsi-Chin TSAI, Hong-Ping LIN
  • Patent number: 10780431
    Abstract: A method of using biopolymer to synthesize titanium-containing silicon oxide material and applications thereof are disclosed. The method comprises steps: mixing a titanium source, a silicon source, an acid source, a base source, a biopolymer and a solvent to form an aqueous solution, and letting the aqueous solution react to form a semi-product; performing aging, solid-liquid separation and drying of the semi-product to obtain a dried solid; and performing calcination or extraction of the dried solid to obtain a titanium-containing silicon oxide material with a high specific surface area. The present invention adopts a biopolymer as the templating agent, which makes the fabrication process of titanium-containing silicon oxide material more environment-friendly. After calcination or extraction, the product still has superior catalytic activity, able to catalyze epoxidation of olefins and favorable for the production of epoxide.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 22, 2020
    Assignee: ORIENTAL UNION CHEMICAL CORP.
    Inventors: Yu-Chuan Hsu, Pin-Hsuan Huang, Chien-Chang Chiang, Ying-Shih Chang, Hsi-Chin Tsai, Hong-Ping Lin
  • Publication number: 20200291160
    Abstract: The present invention provides a silicone hydrogel composition. The silicone hydrogel composition includes a water-soluble silicone macromere, a hydrophilic monomer, a crosslinker, an initiator and an organic solvent. The water-soluble silicone macromere, the hydrophilic monomer, the crosslinker and the initiator is respectively in the amount of 50-80 wt %, 19-50 wt %, 0.1-1.5 wt % and 0.1-1 wt % based on the total weight of the silicone hydrogel composition.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Hsiang-Ho KUNG, Min-Tzung YEH, Ching-Wen YANG, Tsung-Kao HSU
  • Patent number: 10744493
    Abstract: A method of using biopolymer to synthesize titanium-containing silicon oxide material and applications includes mixing a titanium source, a silicon source, an acid source, a base source, a biopolymer and a solvent to form an aqueous solution, and letting the aqueous solution react to form a semi-product; performing aging, solid-liquid separation and drying of the semi-product to obtain a dried solid; and performing calcination or extraction of the dried solid to obtain a titanium-containing silicon oxide material with a high specific surface area. The present invention adopts a biopolymer as the templating agent, which makes the fabrication process of titanium-containing silicon oxide material more environment-friendly. After calcination or extraction, the product still has superior catalytic activity, able to catalyze epoxidation of olefins and favorable for the production of epoxide.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: August 18, 2020
    Assignee: Oriental Union Chemical Corp.
    Inventors: Yu-Chuan Hsu, Pin-Hsuan Huang, Chien-Chang Chiang, Ying-Shih Chang, Hsi-Chin Tsai, Hong-Ping Lin
  • Publication number: 20200220543
    Abstract: In a capacitive touch sensing circuit, a parallel capacitor is coupled to a first input terminal and an output terminal of an operational amplifier. A series capacitor and a sensing capacitor are coupled in series between first input terminal and ground. A test capacitor is coupled to a second node and ground. A first switch is coupled to an operating voltage and a first node. A second switch is coupled to first node and ground. A third switch is coupled to second node and ground. A fourth switch is coupled to operating voltage and second node. A first current source and a fifth switch are coupled between operating voltage and first node. A sixth switch and a second current source are coupled between first node and ground. A seventh switch is coupled to second node and a third node. An eighth switch is coupled to the parallel capacitor.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 9, 2020
    Inventors: Chih-Kai CHANG, Chih-Hsiung CHEN, Yu KUANG, Yu-Chin HSU
  • Publication number: 20200220545
    Abstract: A capacitive touch sensing circuit includes a first switch to a fourteenth switch, an operational amplifier, a comparator, a detection capacitor, a feedback capacitor, an amplifier capacitor and a mutual inductance capacitor. The tenth switch is coupled between a first node and a second node respectively coupled to a negative input terminal and an output terminal of operational amplifier. The amplifier capacitor is coupled between a third node and a fourth node. The eleventh switch is coupled between the first node and the third node. The twelfth switch is coupled between the second node and the fourth node. The thirteenth switch is coupled between the third node and the second node. The fourteenth switch is coupled between the fourth node and the first node. The capacitive touch sensing circuit sequentially operates under a first charging phase, a first transfer phase, a second charging phase and a second transfer phase.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 9, 2020
    Inventors: CHIH-KAI CHANG, CHIH-HSIUNG CHEN, YU-CHIN HSU
  • Patent number: 10693039
    Abstract: A light-emitting device comprises a light-emitting stack; a reflective structure comprising a reflective layer on the light-emitting stack and a first insulating layer covering the reflective layer; and a first conductive layer on the reflective structure; wherein the first insulating layer isolates the reflective layer from the first conductive layer.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: June 23, 2020
    Assignee: Epistar Corporation
    Inventors: Wen-Luh Liao, Shao-Ping Lu, Hung-Ta Cheng, Shih-I Chen, Chia-Liang Hsu, Shou-Chin Wei, Ching-Pei Lin, Yu-Ren Peng, Chien-Fu Huang, Wei-Yu Chen, Chun-Hsien Chang
  • Patent number: 10684726
    Abstract: A capacitive touch sensing circuit includes a first switch˜a fifth switch, an internal capacitor, an integrator and a capacitor. The first switch and an external capacitor are coupled in series between a first voltage and a ground voltage, one terminal of the second switch is coupled between the first switch and the external capacitor, and one terminal of the third switch is coupled to the other terminal of the second switch. The fourth switch and the internal capacitor are coupled in series between a second voltage and the ground voltage, wherein the second voltage is a negative value of the first voltage, and one terminal of the fifth switch is coupled to the other terminal of the second switch and the other terminal of the fifth switch is coupled between the fourth switch and the internal capacitor.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: June 16, 2020
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Hsiung Chen, Yu-Chin Hsu, Chih Yuan
  • Publication number: 20200172647
    Abstract: A silicone hydrogel composition includes a first hydrophilic monomer, a siloxane compound, a first crosslinking monomer, a second hydrophilic monomer, and a second crosslinking monomer. The first hydrophilic monomer and the siloxane compound have an acrylate group or an acrylamide group and may also have a methacrylate group or a methacrylamide group. The first crosslinking monomer has a plurality of acrylate groups or acrylamide groups and may also have methacrylate groups or methacrylamide groups. The second hydrophilic monomer has a non-conjugated vinyl group. The second crosslinking monomer has a plurality of non-conjugated vinyl groups. A sum of the weight of the second hydrophilic monomer and the weight of the second crosslinking monomer is 40 to 100 parts by weight, relative to 100 parts by weight of the sum of the weight of the first hydrophilic monomer, the weight of the siloxane compound, and the weight of the first crosslinking monomer.
    Type: Application
    Filed: June 27, 2019
    Publication date: June 4, 2020
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Di-Yao HSU, Fang-Yu TSAI, Min-Tzung YEH
  • Publication number: 20200057524
    Abstract: A touch sensing device includes an amplifier, a charge measurer, and a comparator. The amplifier has an input terminal and an output terminal. The charge measurer is electrically connected to the input terminal of the amplifier, configured to measure a volume of charges on the input terminal of the amplifier with different measuring basis. The comparator is configured to compare an output voltage on the output terminal of the amplifier with a reference voltage.
    Type: Application
    Filed: July 9, 2019
    Publication date: February 20, 2020
    Inventors: Chun-Wei YANG, Chih-Hsiung CHEN, Yu-Chin HSU, Chih YUAN
  • Patent number: 10493430
    Abstract: The present invention discloses a method for fabricating a titanium-containing silicon oxide material with high thermal stability and applications of the same, wherein a titanium source, a silicon source, an alkaline source, a template molecule and a peroxide are formulated into an aqueous solution; the aqueous solution reacts to generate a solid product; the solid product is separated from the aqueous solution with a solid-liquid separation process and dried; the solid product is calcined to obtain a titanium-containing silicon oxide material with high specific surface area. The titanium-containing silicon oxide material fabricated by the present invention has high thermal stability. Therefore, it still possesses superior catalytic activity after calcination. The titanium-containing silicon oxide material can be used to catalyze epoxidation of olefin and is very useful in epoxide production.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: December 3, 2019
    Assignee: Oriental Union Chemical Corp.
    Inventors: Yu-Chuan Hsu, Hsi-Chin Tsai
  • Publication number: 20190361928
    Abstract: As provided herein, a list of locales of interest in a location may be sorted into one or more categories. A user performing a search for a locale of interest (e.g., a restaurant) may be identified. A local score may be assigned to the locale of interest based upon a number of local users (e.g., users residing in the location) that perform the search. A second user may be determined to be near the locale of interest. A category of interest may be determined for the second user (e.g., an interest in local non-tourist restaurants). Responsive to the category of interest corresponding to the category and the local score of the locale of interest exceeding an interest threshold, the second user may be provided with a recommendation to go to the locale of interest. The locale of interest may be a local favorite restaurant rather than a tourist trap.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Inventors: Christopher Chan, Yu-Chin Tai, Sameer Vasnt Shah, Jeehaeng Lee, Kuo-Hsien Hsu, Katrina Kimball Clark Tempero, Xingjian Zhang
  • Patent number: 10491213
    Abstract: A self-capacitive touch sensing circuit including an operational amplifier, an internal capacitor, a first switch and a second switch is disclosed. A first input terminal and a second input terminal of operational amplifier are coupled to a capacitor and ground respectively and an output terminal of operational amplifier outputs an output voltage. The internal capacitor is coupled between the output terminal and first input terminal of operational amplifier. One terminal of first switch is coupled to a first external charging voltage and another terminal of first switch is coupled between the capacitor and the first input terminal. The first external charging voltage is higher than the second external charging voltage. The first switch and second switch are switched according to a specific order, so that the first external charging voltage or second external charging voltage will charge the capacitor.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: November 26, 2019
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Hsiung Chen, Yu-Chin Hsu, Meng-Yi Chen, Chih Yuan
  • Patent number: 10380146
    Abstract: As provided herein, a list of locales of interest in a location may be sorted into one or more categories. A user performing a search for a locale of interest (e.g., a restaurant) may be identified. A local score may be assigned to the locale of interest based upon a number of local users (e.g., users residing in the location) that perform the search. A second user may be determined to be near the locale of interest. A category of interest may be determined for the second user (e.g., an interest in local non-tourist restaurants). Responsive to the category of interest corresponding to the category and the local score of the locale of interest exceeding an interest threshold, the second user may be provided with a recommendation to go to the locale of interest. The locale of interest may be a local favorite restaurant rather than a tourist trap.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: August 13, 2019
    Assignee: Oath Inc.
    Inventors: Christopher Chan, Yu-Chin Tai, Sameer Vasnt Shah, Jeehaeng Lee, Kuo-Hsien Hsu, Katrina Kimball Clark Tempero, Xingjian Zhang
  • Patent number: 10379674
    Abstract: A mutual-capacitive touch sensing circuit includes an operational amplifier, an internal capacitor, a first switch˜a third switch. A first input terminal and a second input terminal of operational amplifier are coupled to a capacitor and ground respectively and an output terminal of operational amplifier outputs an output voltage. The internal capacitor is coupled to output terminal and first input terminal. The first switch is coupled to a first external charging voltage, capacitor and first input terminal. The second switch is coupled to a second external charging voltage and the capacitor. The third switch is coupled to a third external charging voltage, the second switch and capacitor. The second external charging voltage and third external charging voltage have same magnitude but opposite polarities. The first switch, second switch and third switch are switched in a specific order to selectively charge the capacitor with different external charging voltages.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 13, 2019
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Hsiung Chen, Yu-Chin Hsu, Meng-Yi Chen, Chih Yuan
  • Publication number: 20190207640
    Abstract: A wireless system includes an active oscillator and a front-end circuit. The active oscillator is used to generate and output a reference clock. The active oscillator includes at least one active component, and does not include an electromechanical resonator. The front-end circuit is used to process a transmit (TX) signal or a receive (RX) signal according to a local oscillator (LO) signal. The LO signal is derived from the reference clock.
    Type: Application
    Filed: October 4, 2018
    Publication date: July 4, 2019
    Inventors: Jui-Lin Hsu, Chao-Ching Hung, Tzu-Chin Lin, Wei-Hsiu Hsu, Yu-Li Hsueh, Jing-Hong Conan Zhan, Chih-Ming Hung
  • Publication number: 20190185399
    Abstract: A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized polymer. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 20, 2019
    Inventors: Yu-Chuan HSU, Hsi-Chin TSAI
  • Publication number: 20190185400
    Abstract: A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized polymer. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 20, 2019
    Inventors: Yu-Chuan HSU, Hsi-Chin TSAI