Patents by Inventor Chung Chang

Chung Chang 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: 20250151456
    Abstract: The present invention discloses a photocell device with a responsivity amplifying structure, comprising: a partially reflective filter layer that transmits light within a specific wavelength range and reflects other wavelengths; a gain layer that interacts with photons to alter their wavelength; and an optoelectronic reaction layer. The gain layer is positioned between the partially reflective filter layer and the reaction layer. Photons interacting with the gain layer either enter the reaction layer for conversion or are reflected back for interacting with the gain layer again and then entering the reaction layer for conversion. In another embodiment, an additional reflective filter is placed between the gain layer and the optoelectronic reaction layer.
    Type: Application
    Filed: November 4, 2024
    Publication date: May 8, 2025
    Inventor: Wei-Chung CHANG
  • Publication number: 20250113784
    Abstract: A planting column includes a hollow pillar including upper and lower end portions, a body portion located between the upper and lower end portions, and an accommodating chamber located in the body portion. The upper end portion includes a top opening communicating with the accommodating chamber. The body portion includes through holes communicating the accommodating chamber with the outside of the hollow pillar. The lower end portion includes an inner surface opposite to the top opening, an outer surface, and at least one through hole penetrating through the inner and outer surfaces and communicating the accommodating chamber with the outside of the hollow pillar. The planting column is adapted for a climbing plant to grow and climb thereon, and helps for ramet of the climbing plant. The planting column is insertable in the soil, and helps for improving the soil's water permeability and breathability.
    Type: Application
    Filed: June 28, 2024
    Publication date: April 10, 2025
    Applicant: SHENG SAN CO., LTD.
    Inventor: Cheng-Chung CHANG
  • Publication number: 20250118559
    Abstract: A method includes forming a semiconductor substrate, forming hard mask layers (HMs) over the semiconductor substrate, forming first mandrels over the HMs, forming second mandrels along sidewalls of the first mandrels, forming a protective layer over the first mandrels and the second mandrels, removing a portion of the protective layer to expose portions of the first and the second mandrels, removing the exposed portions of the second mandrels with respect to the exposed portions of the first mandrels, removing remaining portions of the protective layer to expose remaining portions of the first and second mandrels, where the exposed portions of the first mandrels and the remaining portions of the first and second mandrels form a mandrel structure, patterning the HMs using the mandrel structure as an etching mask, and patterning the semiconductor substrate to form a fin structure using the patterned HMs as an etching mask.
    Type: Application
    Filed: December 17, 2024
    Publication date: April 10, 2025
    Inventors: Jen-Hong Chang, Yuan-Ching Peng, Jiun-Ming Kuo, Kuo-Yi Chao, Chih-Chung Chang, You-Ting Lin, Yen-Po Lin, Chen-Hsuan Liao
  • Publication number: 20250101428
    Abstract: Small interfering RNAs (siRNA) having specific modification patterns to improve interference efficiencies thereof. The modification patterns each comprises a combination of 2?-O methyl modification, 2?-O-fluoro-modification, and phosphorothioate (PS) bonds at defined positions in the sense strand and anti-sense strand of each siRNA, and optionally 5? phosphate modifications.
    Type: Application
    Filed: December 2, 2022
    Publication date: March 27, 2025
    Inventors: Yi-Chung CHANG, Chi-Fan YANG, Hui-Yu CHEN, Yi-Fen CHEN
  • Publication number: 20250096044
    Abstract: Semiconductor package includes substrate, first barrier layer, second barrier layer, routing via, first routing pattern, second routing pattern, semiconductor die. Substrate has through hole with tapered profile, wider at frontside surface than at backside surface of substrate. First barrier layer extends on backside surface. Second barrier layer extends along sidewalls of through hole and on frontside surface. Routing via fills through hole and is separated from sidewalls of through hole by at least second barrier layer. First routing pattern extends over first barrier layer on backside surface and over routing via. First routing pattern is electrically connected to end of routing via and has protrusion protruding towards end of routing via in correspondence of through hole. Second routing pattern extends over second barrier layer on frontside surface. Second routing pattern directly contacts another end of routing via. Semiconductor die is electrically connected to routing via by first routing pattern.
    Type: Application
    Filed: November 28, 2024
    Publication date: March 20, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Patent number: 12253789
    Abstract: A webcam module, including a front casing, a rear casing, a support base, a lens, a blocking cover, and a lever, is provided. The front casing has a lens hole. The rear casing is disposed at the front casing and forms an accommodating space. The support base is rotatably disposed in the accommodating space. The lens is disposed on a front side surface of the support base facing the front casing. The blocking cover is slidably sleeved around the support base and faces the front casing. The lever is connected to the blocking cover and protrudes above the front casing and the rear casing. The lever is adapted to drive the blocking cover to slide along the support base. The lever is adapted to drive the blocking cover and the support base to rotate relative to the front casing with an axis as the center.
    Type: Grant
    Filed: November 25, 2021
    Date of Patent: March 18, 2025
    Assignee: ViewSonic International Corporation
    Inventors: Chi-Chung Chang, Chyun-Roh Lin
  • Patent number: 12252728
    Abstract: A disposable test cartridge to determine the concentration of one or more liver enzymes in a blood sample includes a cartridge body having a plurality of chambers where at least one of the chambers contains a reactant mixture that reacts when catalyzed by one of the liver enzymes ALT, AST, ALP, or GGT in a blood sample forming a reaction solution, a removable cartridge cover connected to the cartridge body, and a test strip module connected to the cartridge body. The test strip module containing at least one analyte test strip configured for receiving a portion of the reaction solution and electrochemically measuring at least one analyte that is a reaction product in the reaction solution.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: March 18, 2025
    Assignee: NOVA BIOMEDICAL CORPORATION
    Inventors: Jianhong Pei, Joseph Bedard, Yiliyasi Wusimanjiang, Anthony Florindi, Chung Chang Young
  • Publication number: 20250082228
    Abstract: A ballistocardiogram detection device for noise reduction includes a bearing module, a force sensor, a vibration sensor, and a signal processing module. The bearing module is disposed directly or indirectly on a body or back of a test subject. The force sensor and the vibration sensor are disposed on the bearing module. A distance between the vibration sensor and the force sensor is less than 20 cm. The signal processing module is electrically connected to the force sensor and the vibration sensor. The signal processing module is configured to receive signals output from the force sensor and the vibration sensor.
    Type: Application
    Filed: September 11, 2024
    Publication date: March 13, 2025
    Inventor: Yi-Chung Chang
  • Publication number: 20250075614
    Abstract: The disclosure presents processes to determine the direction and magnitude of tubing eccentricity along the length of a tube inserted within a borehole. The tubing can be a wireline, a drill string, a drill pipe, or tubing capable of allowing fluid or other material to flow through it. As borehole operations proceed, the tubing can move toward the side of the borehole. This eccentricity can cause excess wear and tear on the tubing, on the casing of the borehole, or on the inner surface of the subterranean formation. The eccentricity can be measured using acoustic signals that are collected downhole covering the azimuthal angles 0° to 360° at a location in the borehole. The collected signals can be filtered, transformed, and analyzed to estimate the tubing eccentricity. Other processes and systems can use the results to obtain cement bond evaluations through tubing and to determine preventative or restorative actions.
    Type: Application
    Filed: August 14, 2024
    Publication date: March 6, 2025
    Inventors: Brenno Caetano Troca Cabella, Xiang Wu, Marco Aurelio Luzio, Pablo Vieira Rego, Chung Chang, Federico Combis Lucas, Yao Ge, Ruijia Wang, Ho Yin Ma
  • Publication number: 20250056851
    Abstract: A semiconductor device includes a first channel region, a second channel region, and a first insulating fin, the first insulating fin being interposed between the first channel region and the second channel region. The first insulating fin includes a lower portion and an upper portion. The lower portion includes a fill material. The upper portion includes a first dielectric layer on the lower portion, the first dielectric layer being a first dielectric material, a first capping layer on the first dielectric layer, the first capping layer being a second dielectric material, the second dielectric material being different than the first dielectric material, and a second dielectric layer on the first capping layer, the second dielectric layer being the first dielectric material.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Inventors: Jen-Hong Chang, Yi-Hsiu Liu, You-Ting Lin, Chih-Chung Chang, Kuo-Yi Chao, Jiun-Ming Kuo, Yuan-Ching Peng, Sung-En Lin, Chia-Cheng Chao, Chung-Ting Ko
  • Patent number: 12216326
    Abstract: An optical member driving mechanism for connecting an optical member is provided, including a fixed portion and a first adhesive member. The fixed portion includes a first member and a second member, wherein the first member is fixedly connected to the second member via the first adhesive member.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: February 4, 2025
    Assignee: TDK TAIWAN CORP.
    Inventors: Hsiang-Chin Lin, Shou-Jen Liu, Guan-Bo Wang, Kai-Po Fan, Chan-Jung Hsu, Shao-Chung Chang, Shih-Wei Hung, Ming-Chun Hsieh, Wei-Pin Chin, Sheng-Zong Chen, Yu-Huai Liao, Sin-Hong Lin, Wei-Jhe Shen, Tzu-Yu Chang, Kun-Shih Lin, Che-Hsiang Chiu, Sin-Jhong Song
  • Patent number: 12210208
    Abstract: A driving mechanism is provided for moving an optical element, including a fixed module, a movable module holding the optical element, a driving assembly for driving the movable module to move relative to the fixed module, a position-sensing element, and a 3D circuit. The fixed module has a base, and the position-sensing element is disposed on the base to detect the movement of the movable module relative to the fixed module. The 3D circuit is embedded in the base and electrically connected to the position-sensing element.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: January 28, 2025
    Assignee: TDK TAIWAN CORP.
    Inventors: Shao-Chung Chang, Fu-Yuan Wu, Yu-Huai Liao, Shou-Jen Liu, Kun-Shih Lin, Chien-Lun Huang, Shih-Wei Hung
  • Publication number: 20250028151
    Abstract: An optical element driving mechanism is provided, including a fixed part, a movable part, a metallic member and a driving assembly. The fixed part includes a base. The movable part is movably connected to the fixed part, and carries an optical element, the optical element has an optical axis. The metallic member is disposed on the base, and includes an inner electrical connection part and an outer electrical connection part, the inner electrical connection part and the outer electrical connection part are connected to each other. The driving assembly includes at least one driving magnetic element and drives the movable part to move relative to the fixed part.
    Type: Application
    Filed: October 9, 2024
    Publication date: January 23, 2025
    Inventors: Chien-Lun HUANG, Shao-Chung CHANG, Wei-Cheng WANG, Che-Hsiang CHIU, Fu-Yuan WU, Shou-Jen LIU
  • Publication number: 20250022938
    Abstract: One aspect of the present disclosure pertains to a method of forming a semiconductor structure. The method includes forming an active region over a substrate, forming a dummy gate layer over the active region, forming a hard mask layer over the dummy gate layer, forming a patterned photoresist over the hard mask layer, and performing an etching process to the hard mask layer and the dummy gate layer using the patterned photoresist, thereby forming patterned hard mask structures and patterned dummy gate structures. The patterned hard mask structures are formed with an uneven profile having a protruding portion. The protruding portion of each of the patterned hard mask structures has a first width, wherein each of the patterned dummy gate structures has a second width, and the first width is greater than the second width.
    Type: Application
    Filed: July 13, 2023
    Publication date: January 16, 2025
    Inventors: Yao-Hsuan Lai, Hung-Ju Chou, Chih-Chung Chang, Wei-Yang Lee, Yu-Shan Lu, Yu-Ling Hsieh
  • Patent number: 12196908
    Abstract: A method comprises conveying a downhole tool in a production tubing within a casing that is around a wall of a wellbore formed in a subsurface formation, wherein cement is placed in an annulus defined between the casing and the wall of the wellbore. The downhole tool includes at least one unipole receiver and at least one of a unipole and a monopole transmitter. The transmitter and receiver are mounted on a rotatable portion of the downhole tool. The method includes performing the following operations at at least two azimuthal positions, emitting an acoustic transmission outward toward the cement and detecting an acoustic response that is in response to the acoustic transmission propagating through the production tubing and the casing and into the cement. The acoustic response includes casing extensional waves, casing non-extensional waves, and tubing waves. The method includes evaluating the cement based on the casing extensional waves.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: January 14, 2025
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ruijia Wang, Yao Ge, Brenno Caetano Troca Cabella, Chung Chang, Jing Jin, Ho Yin Ma, Xiang Wu
  • Patent number: 12191203
    Abstract: Semiconductor package includes substrate, first barrier layer, second barrier layer, routing via, first routing pattern, second routing pattern, semiconductor die. Substrate has through hole with tapered profile, wider at frontside surface than at backside surface of substrate. First barrier layer extends on backside surface. Second barrier layer extends along sidewalls of through hole and on frontside surface. Routing via fills through hole and is separated from sidewalls of through hole by at least second barrier layer. First routing pattern extends over first barrier layer on backside surface and over routing via. First routing pattern is electrically connected to end of routing via and has protrusion protruding towards end of routing via in correspondence of through hole. Second routing pattern extends over second barrier layer on frontside surface. Second routing pattern directly contacts another end of routing via. Semiconductor die is electrically connected to routing via by first routing pattern.
    Type: Grant
    Filed: December 25, 2023
    Date of Patent: January 7, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Publication number: 20240425853
    Abstract: A modified small interfering RNA (siRNA) molecule comprising phosphorothioate (PS) intemucleotide linkages in the antisense strand for reducing off-target effects and methods and uses thereof. The siRNAs targeting Hypoxia Inducible Factor 1 Subunit Alpha (HIF1a) with high specificity and silencing efficiency.
    Type: Application
    Filed: July 21, 2022
    Publication date: December 26, 2024
    Applicant: MICROBIO (SHANGHAI) CO. LTD.
    Inventors: Yi-Chung Chang, Chi-Fan Yang, Hui-Yu Chen, Chia-Chun Yang
  • Patent number: 12176212
    Abstract: A method includes forming a semiconductor substrate, forming hard mask layers (HMs) over the semiconductor substrate, forming first mandrels over the HMs, forming second mandrels along sidewalls of the first mandrels, forming a protective layer over the first mandrels and the second mandrels, removing a portion of the protective layer to expose portions of the first and the second mandrels, removing the exposed portions of the second mandrels with respect to the exposed portions of the first mandrels, removing remaining portions of the protective layer to expose remaining portions of the first and second mandrels, where the exposed portions of the first mandrels and the remaining portions of the first and second mandrels form a mandrel structure, patterning the HMs using the mandrel structure as an etching mask, and patterning the semiconductor substrate to form a fin structure using the patterned HMs as an etching mask.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: December 24, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jen-Hong Chang, Yuan-Ching Peng, Jiun-Ming Kuo, Kuo-Yi Chao, Chih-Chung Chang, You-Ting Lin, Yen-Po Lin, Chen-Hsuan Liao
  • Patent number: RE50277
    Abstract: A flyback power converter includes a hybrid clamp circuit and a corresponding power management unit that substantially optimizes the performance of the flyback power converter in its entire line and load ranges. The clamp circuit, which is connected in parallel to a primary winding of the flyback transformer, includes a parallel combination of a capacitor and resistor that is connected in series with a parallel combination of a switch and a diode. By sensing the operating conditions, the power management circuit configures the clamp circuit either as a passive clamp or as an active clamp. In the passive-clamp configuration, the switch is kept turned off. In the active-clamp configuration, the switch operates with pulse-width modulation (PWM) which enables ZVS turn-on of the main switch.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 21, 2025
    Assignee: Delta Electronics, Inc.
    Inventors: Haibin Song, Laszlo Huber, Daofei Xu, Alpha Zhang, Milan M. Jovanovic, Chien-Chung Chang
  • Patent number: D1059154
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: January 28, 2025
    Assignee: DESIGNER BRASS CORPORATION
    Inventor: Cheng Chung Chang