Patents by Inventor Chia-Lung Tsai

Chia-Lung Tsai 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).

  • Publication number: 20240323884
    Abstract: A communication device includes a wireless transceiver circuit and a processor. The wireless transceiver circuit transmits and receives wireless signals. The processor processes the wireless signals to obtain information regarding a first period configured by a serving network device in order to measure signal strength of the serving network device and obtain information regarding a second period configured by the serving network device in order to detect a neighbor network device. The processor further determines whether an event related to low communication delay is triggered. When determining that the event related to low communication delay is not triggered, the processor performs a detection operation to detect the neighbor network device according to the second period. When determining that the event related to the low communication delay is triggered, the processor performs the detection operation to detect the neighbor network device according to a third period shorter than the second period.
    Type: Application
    Filed: March 18, 2024
    Publication date: September 26, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Chia-Lung Tsai, Jui-Peng Tsai
  • Publication number: 20240258370
    Abstract: A semiconductor component including a semiconductor layer, a barrier layer, a leakage current suppression layer, an ohmic contact layer and an electrode layer is provided. The semiconductor layer has a protrusion and a top surface, adjacent to the protrusion. The protrusion includes a top surface and a side surface. The barrier layer is disposed on the top surface of the protrusion. The leakage current suppression layer is disposed on the top surface of the semiconductor layer. The ohmic contact layer is disposed on the leakage current suppression layer, and contacts the side surface of the protrusion and a side surface of the barrier layer. The ohmic contact layer does not contact the top surface of the semiconductor layer. The electrode layer is disposed on the ohmic contact layer.
    Type: Application
    Filed: December 17, 2023
    Publication date: August 1, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Hsueh-Hsing Liu, Chia-Lung Tsai
  • Patent number: 11639414
    Abstract: A water-based polyurethane resin and a method for manufacturing the same are provided. The method for manufacturing the water-based polyurethane includes: a preparation step of a prepolymer, a dilution step of the prepolymer, a water dispersion and chain extension step, and an acrylic synthesis step. The method further includes mixing polyol and polyisocyanate to obtain a prepolymer, and diluting the prepolymer by adding acrylic monomer in the prepolymer. In the water-based polyurethane resin, at least one of the polyhydric alcohol, polyisocyanate, and the acrylic monomer includes a compound with a cyclic structure.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: May 2, 2023
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Sen-Huang Hsu, Chia-Lung Tsai
  • Publication number: 20230132155
    Abstract: Provided is a semiconductor substrate with a balance stress. The semiconductor substrate includes a ceramics base, a nucleation layer and a first buffer layer doped with a first dopant. The ceramics base has an off-cut angle other than 0 degree. The nucleation layer is disposed on the ceramics base. The first buffer layer is disposed on the nucleation layer. The first dopant includes C, Fe or a combination thereof. The first buffer layer provides compressive stress to the ceramic base. The concentration of the first dopant in the first buffer layer is increased away from the ceramics base. The curvature of the semiconductor substrate is between 16 km?1 and ?16 km?1.
    Type: Application
    Filed: November 28, 2022
    Publication date: April 27, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu
  • Publication number: 20230097569
    Abstract: An antibacterial modified polyurethane resin is provided. The antibacterial modified polyurethane resin includes a polyurethane resin and an antibacterial modifying agent grafted on the polyurethane resin. The antibacterial modifying agent has formula (I) as follows: R1 is a substituent of —(CH2)a—, R2 is a substituent of —(CH2)bCH3—, a is a positive integer that is greater than or equal to 3, and b is a positive integer that is greater than or equal to 12. The antibacterial modifying agent has three methoxyl groups, at least two of the three methoxyl groups bond to the polyurethane resin through covalent bonds. In the antibacterial modified polyurethane resin, a chloride ion of the antibacterial modifying agent is configured to be ionized, so that a nitrogen atom is configured to be positively charged to attract a bacteria in an environment.
    Type: Application
    Filed: August 4, 2022
    Publication date: March 30, 2023
    Inventors: TE-CHAO LIAO, Pao-Tsao Su, SEN-HUANG HSU, CHIA-LUNG TSAI
  • Publication number: 20220127406
    Abstract: A water-based polyurethane resin and a method for manufacturing the same are provided. The method for manufacturing the water-based polyurethane includes: a preparation step of a prepolymer, a dilution step of the prepolymer, a water dispersion and chain extension step, and an acrylic synthesis step. The method further includes mixing polyol and polyisocyanate to obtain a prepolymer, and diluting the prepolymer by adding acrylic monomer in the prepolymer. In the water-based polyurethane resin, at least one of the polyhydric alcohol, polyisocyanate, and the acrylic monomer includes a compound with a cyclic structure.
    Type: Application
    Filed: July 19, 2021
    Publication date: April 28, 2022
    Inventors: TE-CHAO LIAO, SEN-HUANG HSU, CHIA-LUNG TSAI
  • Publication number: 20220056193
    Abstract: An organosilicon-modified polyurethane resin and a method for producing the same are provided. The organosilicon-modified polyurethane resin includes organosilicon ingredients obtained by chemically bonding a first organosilicon chain extender having a chemical structure of formula (I) and a second organosilicon chain extender having a chemical structure of formula (II) into a molecular structure of a polyurethane resin during a polymerization reaction: in which R11 is a substituent of —CH2CH2— or —CH2CH(CH3)—, n1 is a positive integer between 0 and 50, m1 is a positive integer between 0 and 50, and x1 is a positive integer between 4 and 100; in which R21 is a substituent of —CH3 or —CH2CH3, R22 is a substituent of —CH2CH2CH2—, and R23 is a substituent of —CH2CH2— or —CH2CH(CH3)—, n2 is a positive integer between 6 and 130, and m2 is a positive integer between 4 and 50.
    Type: Application
    Filed: June 3, 2021
    Publication date: February 24, 2022
    Inventors: TE-CHAO LIAO, SEN-HUANG HSU, CHIA-LUNG TSAI
  • Patent number: 11254780
    Abstract: A method for preparing an aqueous polyurethane dispersion includes the following steps. The method characterized in that it introduces an ethoxy group to sodium ethylenediamine sulfonate (H2N—CH2CH2NHCH2CH2SO3Na) serving as an anionic chain extender to form sodium ethylenediamino ethoxyethyl sulfonate (H2NCH2CH2NHCH2CH2OCH2CH2SO3Na). Next, hydrophilic groups of sodium ethylenediamino ethoxyethyl sulfonate are used to prepare an aqueous polyurethane to improve the flowability of the resin, in which the polyurethane prepolymer has an isocyanate group at its end. More than one acrylate monomer is used for dilution and reduction of viscosity, and hydrophilic and amine groups containing sulfonate is used for water dispersion and to carry out a chain extension reaction. After that, an initiator is added for acrylic polymerization, so as to modify polyurethane with graft acrylic.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: February 22, 2022
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Sen-Huang Hsu, Chia-Lung Tsai
  • Patent number: 11233173
    Abstract: An ultraviolet C light-emitting diode including an n-type semiconductor layer, a p-type semiconductor layer, an active layer, a two-dimensional hole gas (2DHG) inducing layer, and an electron blocking layer is provided. The active layer is disposed between the n-type semiconductor layer and the p-type semiconductor layer, wherein a wavelength of a maximum peak of a spectrum emitted by the active layer ranges from 230 nm to 280 nm. The two-dimensional hole gas (2DHG) inducing layer is disposed between the active layer and the p-type semiconductor layer. A concentration of magnesium in the 2DHG inducing layer is less than 1017 atoms/cm3. The electron blocking layer is disposed between the p-type semiconductor layer and the 2DHG inducing layer. A concentration of magnesium in a part of the electron blocking layer adjacent to the 2DHG inducing layer is greater than 1019 atoms/cm3.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 25, 2022
    Assignees: Industrial Technology Research Institute, OPTO TECH CORP.
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu, Chang Da Tsai
  • Patent number: 10957814
    Abstract: An ultraviolet C light-emitting diode includes an n-type semiconductor layer, a p-type semiconductor layer, an active layer, a first electron blocking layer, and a second electron blocking layer. The active layer is disposed between the n-type semiconductor layer and the p-type semiconductor layer. The wavelength of the maximum peak of the spectrum emitted by the active layer ranges from 230 nanometers to 280 nanometers. The concentration of magnesium in the active layer is less than 1017 atoms/cm3. The first electron blocking layer and the second electron blocking layer are disposed between the p-type semiconductor layer and the active layer. The concentration of magnesium in the second electron blocking layer is greater than that of the first electron blocking layer and is greater than 1018 atoms/cm3.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: March 23, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu
  • Publication number: 20210005780
    Abstract: An ultraviolet C light-emitting diode including an n-type semiconductor layer, a p-type semiconductor layer, an active layer, a two-dimensional hole gas (2DHG) inducing layer, and an electron blocking layer is provided. The active layer is disposed between the n-type semiconductor layer and the p-type semiconductor layer, wherein a wavelength of a maximum peak of a spectrum emitted by the active layer ranges from 230 nm to 280 nm. The two-dimensional hole gas (2DHG) inducing layer is disposed between the active layer and the p-type semiconductor layer. A concentration of magnesium in the 2DHG inducing layer is less than 1017 atoms/cm3. The electron blocking layer is disposed between the p-type semiconductor layer and the 2DHG inducing layer. A concentration of magnesium in a part of the electron blocking layer adjacent to the 2DHG inducing layer is greater than 1019 atoms/cm3.
    Type: Application
    Filed: August 31, 2020
    Publication date: January 7, 2021
    Applicants: Industrial Technology Research Institute, OPTO TECH CORP.
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu, Chang Da Tsai
  • Publication number: 20200325266
    Abstract: A method for preparing an aqueous polyurethane dispersion includes the following steps. The method characterized in that it introduces an ethoxy group to sodium ethylenediamine sulfonate (H2N—CH2CH2NHCH2CH2SO3Na) serving as an anionic chain extender to form sodium ethylenediamino ethoxyethyl sulfonate (H2NCH2CH2NHCH2CH2OCH2CH2SO3Na). Next, hydrophilic groups of sodium ethylenediamino ethoxyethyl sulfonate are used to prepare an aqueous polyurethane to improve the flowability of the resin, in which the polyurethane prepolymer has an isocyanate group at its end. More than one acrylate monomer is used for dilution and reduction of viscosity, and hydrophilic and amine groups containing sulfonate is used for water dispersion and to carry out a chain extension reaction. After that, an initiator is added for acrylic polymerization, so as to modify polyurethane with graft acrylic.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 15, 2020
    Inventors: TE-CHAO LIAO, SEN-HUANG HSU, CHIA-LUNG TSAI
  • Publication number: 20200194618
    Abstract: An ultraviolet C light-emitting diode includes an n-type semiconductor layer, a p-type semiconductor layer, an active layer, a first electron blocking layer, and a second electron blocking layer. The active layer is disposed between the n-type semiconductor layer and the p-type semiconductor layer. The wavelength of the maximum peak of the spectrum emitted by the active layer ranges from 230 nanometers to 280 nanometers. The concentration of magnesium in the active layer is less than 1017 atoms/cm3. The first electron blocking layer and the second electron blocking layer are disposed between the p-type semiconductor layer and the active layer. The concentration of magnesium in the second electron blocking layer is greater than that of the first electron blocking layer and is greater than 1018 atoms/cm3.
    Type: Application
    Filed: June 5, 2019
    Publication date: June 18, 2020
    Applicant: Industrial Technology Research Institute
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu
  • Patent number: 10676562
    Abstract: A process for preparing solvent-free aqueous polyurethane dispersion modified with acrylic grafting is divided into four steps. The first step is a reaction of a diisocyanate with a polyol to prepare a prepolymer; the second step involves diluting the prepolymer with an acrylate monomer and adding a sulfonate-based chain extender to react; the third step involves adding deionized water and a water-soluble diamine-based chain extender to obtain a solvent-free sulfonate-based aqueous polyurethane dispersion; and the fourth step involves letting the aqueous polyurethane become modified with acrylic grafting. The resulting aqueous polyurethane has excellent mechanical strength, heat resistance and water resistance.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 9, 2020
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Sen-Huang Hsu, Chia-Lung Tsai
  • Patent number: 9724385
    Abstract: The present invention is directed toward pharmaceutical compositions comprising an isolated polypeptide and a pharmaceutically acceptable carrier. The present invention also discloses an antibody or an antigen-binding portion thereof that bind to the isolated polypeptide. Methods of inhibiting cancer cells growth are also disclosed, comprising administering the isolated polypeptide or the antibody described herein to a subject in need thereof.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 8, 2017
    Assignee: Chang Gung Memorial Hospital, Linkou Branch
    Inventors: Tzu-Hao Wang, Chia-Lung Tsai, Angel Chao
  • Publication number: 20170107319
    Abstract: A process for preparing aqueous polyurethane solvent-free uses an acrylate monomer instead of acetone to dilute a prepared polyurethane prepolymer, not only the monomer can be added without cooling, but also the prepolymer has good dispersal and is favorable to subsequent dispersion in water while preventing coagulation and acetone residual; additionally, the invented process let the aqueous polyurethane become modified by acrylic grafting may improve the aqueous polyurethane being excellent in terms of mechanical strength, heat resistance and water resistance.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 20, 2017
    Inventors: Te-Chao LIAO, Sen-Huang HSU, Chia-Lung TSAI
  • Publication number: 20170104074
    Abstract: In an embodiment, a III-V nitride semiconductor device comprises an AlGaN epitaxial layer and a metal electrode. The AlGaN epitaxial layer is a C-plane n-type or undoped layer, and the AlGaN epitaxial layer has an epitaxial surface consisting of one or more semi-polar planes. The metal electrode is directly formed on the one or more semi-polar planes.
    Type: Application
    Filed: November 25, 2015
    Publication date: April 13, 2017
    Inventors: Wei-Hung Kuo, Suh-Fang Lin, Kun-Fong Lin, Chia-Lung Tsai
  • Publication number: 20160172536
    Abstract: A semiconductor light-emitting structure including a first-type doped semiconductor layer, a second-type doped semiconductor layer, a light-emitting layer, a first electrode, a second electrode, and a magnetic layer is provided. The light-emitting layer is disposed between the first-type doped semiconductor layer and the second-type doped semiconductor layer. The first electrode is electrically connected to the first-type doped semiconductor layer, and the second electrode is electrically connected to the second-type doped semiconductor layer. The magnetic layer connects the first electrode and the first-type doped semiconductor layer. At least a portion of the magnetic layer is magnetic, and the bandgap of at least another portion of the magnetic layer is greater than 0 eV and is less than or equal to 5 eV. The material of the magnetic layer includes metal, metal oxide, or a combination thereof.
    Type: Application
    Filed: December 29, 2014
    Publication date: June 16, 2016
    Inventors: Chia-Lung Tsai, Yen-Hsiang Fang, Pao-Chu Tzeng
  • Publication number: 20160008426
    Abstract: The present invention is directed toward pharmaceutical compositions comprising an isolated polypeptide and a pharmaceutically acceptable carrier. The present invention also discloses an antibody or an antigen-binding portion thereof that bind to the isolated polypeptide.
    Type: Application
    Filed: July 30, 2015
    Publication date: January 14, 2016
    Inventors: Tzu-Hao Wang, Chia-Lung Tsai, Angel Chao
  • Patent number: 9145449
    Abstract: The present invention is directed toward pharmaceutical compositions comprising an isolated polypeptide and a pharmaceutically acceptable carrier. The present invention also discloses an antibody or an antigen-binding portion thereof that bind to the isolated polypeptide. Methods of inhibiting cancer cells growth are also disclosed, comprising administering the isolated polypeptide or the antibody described herein to a subject in need thereof.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: September 29, 2015
    Assignee: CHANG GUNG MEMORIAL HOSPITAL, LINKOU BRANCH
    Inventors: Tzu-Hao Wang, Chia-Lung Tsai, Angel Chao