Patents by Inventor Yu-Jen Chuang

Yu-Jen Chuang 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: 12258453
    Abstract: A method for improving hue of recycled bis-2-hydroxylethyl terephthalate by using ionic liquids including providing a recycled polyester fabric; using a chemical de-polymerization liquid to chemically de-polymerize the recycled polyester fabric to form a de-polymerization product; mixing the de-polymerization product with water to form an aqueous phase liquid; dispersing an ionic liquid impurity adsorption material into the aqueous phase liquid to adsorb impurities originally present in the recycled polyester fabric.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: March 25, 2025
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Jung-Jen Chuang, Wei-Sheng Cheng, Zhang-Jian Huang, Yu-Ti Tseng
  • Patent number: 12237398
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a first spacer adjacent to the gate structure, wherein the first spacer comprises silicon carbon nitride (SiCN); forming a second spacer adjacent to the first spacer, wherein the second spacer comprises silicon oxycarbonitride (SiOCN); and forming a source/drain region adjacent to two sides of the second spacer.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: February 25, 2025
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Ming Kuo, Po-Jen Chuang, Yu-Ren Wang, Ying-Wei Yen, Fu-Jung Chuang, Ya-Yin Hsiao, Nan-Yuan Huang
  • Publication number: 20250051536
    Abstract: A method of recycling polyester fabric includes following steps. A polyester fabric including polyethylene terephthalate and dyes is provided. An extraction process including using ethylene glycol as an extraction solvent, immersing the polyester fabric in the extraction solvent, and extracting under a temperature of 80° C. to 180° C. is performed to remove the dyes from the polyester fabric. A depolymerization process including using a chemical depolymerization solution to depolymerize the polyester fabric treated with the extraction process to obtain a product including BHET is performed. The chemical depolymerization solution is ethylene glycol. A purification process is performed to remove impurities of the product obtained by the depolymerization process and to obtain a purified BHET. A solvent recycling process is performed.
    Type: Application
    Filed: September 14, 2023
    Publication date: February 13, 2025
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Jung-Jen Chuang, Yu Ti Tseng, Zhang-Jian Huang
  • Patent number: 12127358
    Abstract: A middle frame includes an inner frame, a blocking member, and a covering member. The inner frame includes an outer surface and an inner surface opposite the outer surface. The inner frame further comprises at least one mounting hole penetrating the outer surface and the inner surface, the at least one mounting hole comprises an opening at the outer surface. The covering member covers the outer surface, and the blocking member is disposed between the covering member and the outer surface so as to cover the opening of the at least one mounting hole at the outer surface. An electronic device including the middle frame and a method for manufacturing the middle frame are also provided.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: October 22, 2024
    Assignees: Futaijing Precision Electronics (Yantai) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wen-Bin Huang, Hsiu-Fu Li, Je-Wei Chiang, Yi-Ren Fang, Yu-Cheng Zhang, Yu-Jen Chuang
  • Publication number: 20220322549
    Abstract: A middle frame includes an inner frame, a blocking member, and a covering member. The inner frame includes an outer surface and an inner surface opposite the outer surface. The inner frame further comprises at least one mounting hole penetrating the outer surface and the inner surface, the at least one mounting hole comprises an opening at the outer surface. The covering member covers the outer surface, and the blocking member is disposed between the covering member and the outer surface so as to cover the opening of the at least one mounting hole at the outer surface. An electronic device including the middle frame and a method for manufacturing the middle frame are also provided.
    Type: Application
    Filed: March 23, 2022
    Publication date: October 6, 2022
    Inventors: WEN-BIN HUANG, HSIU-FU LI, JE-WEI CHIANG, YI-REN FANG, YU-CHENG ZHANG, YU-JEN CHUANG
  • Publication number: 20110305029
    Abstract: An illuminating system having an electronic shield illuminating apparatus comprises a semiconductor light-emitting source, a reflector, an electronic shield, a shield driving control circuit, and a projection lens. The reflector is intended for reflecting a portion of the light reflected by the semiconductor light-emitting source, and has a reflecting surface facing the semiconductor light-emitting source. The electronic shield is intended for generating different shield patterns to mask the light emitted by the semiconductor light-emitting source, and the light reflected by the reflector, and has a main surface facing the semiconductor light-emitting source and the reflecting surface of the reflector. The shield driving control circuit drives the electronic shield to generate different shield patterns in response to a signal information. The projection lens projects the light passing through the electronic shield.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 15, 2011
    Applicant: United Radiant Technology Corporation
    Inventors: Yu-Jen Chuang, Chang-Yuan Ju
  • Patent number: 7896532
    Abstract: An LED luminescent device includes an LED light source, a reflector, a light shade and a projecting lens. The LED light source includes at least one LED element having a light-emitting surface emitting light. The reflector faces the light-emitting surface of the at least one LED element and has multiple reflection surfaces of different curvatures reflecting the light from the light-emitting surface of the at least one LED element. The light shade adjusts the light reflected by the reflector to provide a required light distribution pattern. The projecting lens project the required light distribution pattern. Thus, the device and a vehicle lamp including the device can prevent losing light energy.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: March 1, 2011
    Assignee: Automotive Research & Testing Center
    Inventors: Jih-Tao Hsu, Chun-Ching Lai, Yu-Jen Chuang
  • Publication number: 20100033985
    Abstract: An LED luminescent device comprises an LED light source, a reflector, a light shade and a projecting lens. The LED light source comprises at least one LED element having a light-emitting surface emitting light. The reflector faces the light-emitting surface of the at least one LED element and has multiple reflection surfaces of different curvatures reflecting the light form the light-emitting surface of the at least one LED element. The light shade adjusts the light reflected by the reflector to provide a required light distribution pattern. The projecting lens projects the required light distribution pattern. Thus the device and a vehicle lamp comprising the device can prevent light energy from losing.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 11, 2010
    Inventors: Jih-Tao Hsu, Chun-Ching Lai, Yu-Jen Chuang
  • Patent number: 7207709
    Abstract: A direct type backlight module. The backlight module includes a first plate, a second plate, a plurality of light sources and a third plate. The second plate connects to the first plate and forming a space between. The plurality of light sources is disposed in the space. The third plate is disposed outside the space, connects to the surface of the first plate and has a plurality of openings.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: April 24, 2007
    Assignee: AU Optronics Corp.
    Inventors: Yu-Jen Chuang, Chien-Hung Kuo
  • Publication number: 20050002173
    Abstract: A direct type backlight module. The backlight module includes a first plate, a second plate, a plurality of light sources and a third plate. The second plate connects to the first plate and forming a space between. The plurality of light sources is disposed in the space. The third plate is disposed outside the space, connects to the surface of the first plate and has a plurality of openings.
    Type: Application
    Filed: April 9, 2004
    Publication date: January 6, 2005
    Inventors: Yu-Jen Chuang, Chien-Hung Kuo