Patents by Inventor Kai-Chun Chang

Kai-Chun 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).

  • Patent number: 12218230
    Abstract: A p-GaN high-electron-mobility transistor, includes a substrate, a channel layer stacked on the substrate, a supply layer stacked on the channel layer, a first doped layer stacked on the supply layer, a second doped layer stacked on the first doped layer, and a third doped layer stacked on the second doped layer. A doping concentration of the first doped layer and the doping concentration of the third doped layer are lower than a doping concentration of the second doped layer. A gate is located on the third doped layer, and a source and a drain are electrically connected to the channel layer and the supply layer, respectively.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: February 4, 2025
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Ting-Chang Chang, Mao-Chou Tai, Yu-Xuan Wang, Wei-Chen Huang, Ting-Tzu Kuo, Kai-Chun Chang, Shih-Kai Lin
  • 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
  • Publication number: 20250034636
    Abstract: Existing spatial transcriptomics technologies require dead tissues and are not compatible with live cell cultures. The present disclosure provides materials and methods for sequencing a single cell from a cell culture sample and obtaining morphologic or phenotypic measurements and information by combining sequencing approaches and spatial hashing (e.g., barcoding) at a single cell level.
    Type: Application
    Filed: December 8, 2022
    Publication date: January 30, 2025
    Inventors: Kai-Chun Chang, Adam Abate, Sixuan Pan
  • Publication number: 20250024383
    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support transmission of power limit indications for a UE associated with different frequency bands. In a first aspect, a method of wireless communication includes detecting a first trigger condition for transmission of at least a first indication of a first transmission power limit of the UE and a second indication of a second transmission power limit of the UE, wherein the first transmission power limit is associated with a first frequency band supported by the UE and the second transmission power limit is associated with a second frequency band supported by the UE and transmitting, to a first network node associated with the first frequency band, the first indication and the second indication in accordance with detection of the first trigger condition. Other aspects and features are also claimed and described.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 16, 2025
    Inventors: Chan-Jui Chian, Chia-Wei Chang, Tzui Lu, Tsung-Te Hou, Kai-Chun Huang, Wei-Che Chang, Yuwei Pan, Cheng-Ting Tsai
  • Publication number: 20240355728
    Abstract: A semiconductor structure includes a circuit with a redistribution layer (RDL) formed over the circuit. The redistribution layer comprises a plurality of metal layers. An inductor is formed in a topmost metal layer, and the circuit is located directly under the inductor. An under bump metallization (UBM) layer formed on the topmost metal layer and a conductive connector formed on the UBM layer.
    Type: Application
    Filed: August 17, 2023
    Publication date: October 24, 2024
    Inventors: Kai-Chun Chang, Hsieh-Hung Hsieh, Tzu-Jin Yeh, Ching-Chung Hsu, Chung-Long Chang, Hua-Chou Tseng
  • Publication number: 20240046623
    Abstract: An image selection method is applied to retrain a model. The model is suitable for determining the component types of multiple component images, and each component type corresponds to at least one installation site. The image selection method at least includes the following steps: establishing an image labeling library, which includes a plurality of component images, and each component image is correspondingly labeled with a component type and an installation site; creating an error record, which includes at least one wrong component type previously determined incorrectly by the model and at least one wrong installation site corresponding to the wrong component type; and executing an image selection assignment to create a data set.
    Type: Application
    Filed: May 16, 2023
    Publication date: February 8, 2024
    Inventor: Kai-Chun CHANG
  • Publication number: 20230378337
    Abstract: A p-GaN high-electron-mobility transistor, includes a substrate, a channel layer stacked on the substrate, a supply layer stacked on the channel layer, a first doped layer stacked on the supply layer, a second doped layer stacked on the first doped layer, and a third doped layer stacked on the second doped layer. A doping concentration of the first doped layer and the doping concentration of the third doped layer are lower than a doping concentration of the second doped layer. A gate is located on the third doped layer, and a source and a drain are electrically connected to the channel layer and the supply layer, respectively.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 23, 2023
    Inventors: TING-CHANG CHANG, MAO-CHOU TAI, YU-XUAN WANG, WEI-CHEN HUANG, TING-TZU KUO, KAI-CHUN CHANG, SHIH-KAI LIN
  • Publication number: 20230212646
    Abstract: Provided is a method including encapsulating a biological material in a droplet having a volume of 500 nl or less, depositing the droplet to an addressable location of a substrate, and performing mass spectroscopy on the droplet. The method can further include conducting omic analysis on the droplet, such as sequencing DNA or analyzing mRNA, after the mass spectroscopy. In some cases, the method can be used to screen thousands of genetically different cells to identify correlations between genetics and the production of a metabolite, wherein the metabolite is detected by mass spectroscopy. Also provided is a system for performing the method.
    Type: Application
    Filed: May 27, 2021
    Publication date: July 6, 2023
    Inventors: Adam R. Abate, Linfeng Xu, Leqian Liu, Kai-chun Chang
  • Publication number: 20220343113
    Abstract: An automatic model reconstruction method and an automatic model reconstruction system for a component recognition model are provided. The automatic model reconstruction method includes the following steps. A first component image of a plurality of circuit boards is sequentially captured at a first position. The component recognition model sequentially recognizes component categories of the first component images, and a number of recognition probability values are output. According to the recognition probability values, a number of exponentially weighted moving averages (EWMA) are obtained. The first component images corresponding to the exponentially weighted moving averages lower than a first set value are collected until one of the exponentially weighted moving averages is lower than or equal to a second set value. The collected first component images are regarded as abnormal component images. The component recognition model is reconstructed according to the abnormal component images.
    Type: Application
    Filed: March 14, 2022
    Publication date: October 27, 2022
    Applicant: PEGATRON CORPORATION
    Inventors: Ting-An Jiang, Kai-Chun Chang
  • Publication number: 20210246530
    Abstract: A modified alloy powder includes a powdered alloy; and a carbide powder, mixed in the powdered alloy; wherein the carbide powder has a particle size smaller than that of the powdered alloy, and the carbide powder is dedicated to powder bed selective laser melting and laser metal deposition technology. Being used as a grain refiner and a grain growth inhibitor, the effect of refinement in the grain size of final products and improvement of the workpiece strength can be achieved.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 12, 2021
    Inventors: KAI-CHUN CHANG, TZU-HOU HSU, AN-CHOU YEH, CHING-YUAN LO, CHIH-PENG CHEN, KUO-KUANG JEN
  • Publication number: 20190231926
    Abstract: A bone graft composition promoting osteogenic capacity is provided. The bone graft composition includes an osteoinductive component including statins and a biodegradable polymer and an osteoconductive matrix including a biodegradable calcium phosphate ceramic, wherein the amount of the calcium phosphate ceramic is about 70 to 95 wt % based on the total weight of the bone graft composition. The bone graft composition can achieve the optimal release control characteristics of the statins in the osteoinductive component.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Inventors: SUNG-CHING CHEN, PO-HONG LAI, KAI-CHUN CHANG, YU-CHEN HSU
  • Patent number: 9819874
    Abstract: A camera color temperature compensation system includes a first camera module, a second camera module, a light-emitting element unit, a controller, and a processor. The second camera module detects environmental parameters. The light-emitting element unit includes at least one light-emitting element and is arranged adjacent to the first camera module or the second camera module. The controller adjusts emitting strength of the at least one light-emitting element. The processor triggers the controller to adjust emitting strength of the at least one light-emitting element according to the environmental parameters detected by the second camera module. The emitting strength of the at least one light-emitting element is adjusted to adjust a brightness and a color temperature of environment. The first camera module captures images in the adjusted brightness and the adjusted color temperature. A smart terminal employing the camera color temperature compensation system is also provided.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 14, 2017
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: How-Wen Chien, Kai-Chun Chang, Yi-Yun Hung
  • Publication number: 20170054960
    Abstract: A camera color temperature compensation system includes a first camera module, a second camera module, a light-emitting element unit, a controller, and a processor. The second camera module detects environmental parameters. The light-emitting element unit includes at least one light-emitting element and is arranged adjacent to the first camera module or the second camera module. The controller adjusts emitting strength of the at least one light-emitting element. The processor triggers the controller to adjust emitting strength of the at least one light-emitting element according to the environmental parameters detected by the second camera module. The emitting strength of the at least one light-emitting element is adjusted to adjust a brightness and a color temperature of environment. The first camera module captures images in the adjusted brightness and the adjusted color temperature. A smart terminal employing the camera color temperature compensation system is also provided.
    Type: Application
    Filed: November 30, 2015
    Publication date: February 23, 2017
    Inventors: HOW-WEN CHIEN, KAI-CHUN CHANG, YI-YUN HUNG
  • Publication number: 20170054900
    Abstract: A monitoring system includes a detecting module, a controlling module, a warning module, and a camera module. The detecting module is configured to detect physical parameters of an object in a detecting area and generate a detecting signal. The controlling module is configured to compare the physical parameters with preset reference parameters, and generate a starting signal according to a comparing result. The warning module is configured to generate a warning in response to the starting signal. The camera module is configured to capture an image of the detected object in response to the starting signal.
    Type: Application
    Filed: August 16, 2016
    Publication date: February 23, 2017
    Inventors: HOW-WEN CHIEN, CHUANG-WEI CHUEH, KAI-CHUN CHANG
  • Publication number: 20160227896
    Abstract: A portable electronic assembly includes a portable electronic device and a covering buoyancy device, the buoyancy device includes an housing and a cavity, the cavity includes at least one first primary cavity and at least one second primary cavity isolated from the at least one first primary cavity.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 11, 2016
    Inventors: HOW-WEN CHIEN, KAI-CHUN CHANG
  • Patent number: 9366383
    Abstract: A holder includes a holding member, an attaching member, and a connecting structure. The holding member is configured to hold the portable electronic device thereon. The mounting member can be attached to an object, such as a user's arm or wrist. The connecting structure includes a first connecting member and a second connecting member rotatably coupled to the first connecting member. The first connecting member is coupled to the attaching member; the second connecting member is coupled to the holding member.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 14, 2016
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: How-Wen Chien, Bo-Han Chu, Che-Hsin Chao, Kui-Hao Chang, Kai-Chun Chang
  • Publication number: 20150144755
    Abstract: A holder includes a holding member, an attaching member, and a connecting structure. The holding member is configured to hold the portable electronic device thereon. The mounting member can be attached to an object, such as a user's arm or wrist. The connecting structure includes a first connecting member and a second connecting member rotatably coupled to the first connecting member. The first connecting member is coupled to the attaching member; the second connecting member is coupled to the holding member.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventors: HOW-WEN CHIEN, BO-HAN CHU, CHE-HSIN CHAO, KUI-HAO CHANG, KAI-CHUN CHANG
  • Publication number: 20100309181
    Abstract: An integrated and simplified source driver system includes a scan driver and a data driver. The data driver has a signal controller and a plurality of data driver units each of which has a converter. The converter can convert a first control signal into display data, a driver-unit control signal and a second control signal. The data driver unit can correspondingly send a data drive signal to one of thin film transistors according to the display data and the driver-unit control signal. The second control signal is sent to the scan driver for generating a scan drive signal which is correspondingly sent to one of the thin film transistors. In a preferred embodiment, the first control signal includes an integrated drive-unit control command.
    Type: Application
    Filed: August 13, 2009
    Publication date: December 9, 2010
    Inventors: WAN-HSIANG SHEN, JYH-TING LAI, YUNG-TAI CHEN, TA-SHENG CHI, KAI-CHUN CHANG
  • Publication number: 20090009053
    Abstract: A fabricating method of a field emission device array substrate is provided, which includes the following steps. First, a substrate is provided. Then, a cathode conductive layer is formed on the substrate. Moreover, an anodized layer with a plurality of holes is formed on the cathode conductive layer. Thereafter, a plurality of electron emitters is formed within the holes respectively. Additionally, an insulation layer is formed to cover the electron emitters and the anodized layer. Then, a gate material layer is formed on the insulation layer. Thereafter, the gate material layer is patterned to form a gate layer. The gate layer and the insulation layer have an opening to expose the electron emitters.
    Type: Application
    Filed: December 12, 2007
    Publication date: January 8, 2009
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Chen-Chun Lin, Fu-Ming Pan, Kai-Chun Chang, Chuan-Wen Kuo, Mei Liu, Chi-Neng Mo
  • Patent number: D1063950
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: February 25, 2025
    Assignee: VIVOTEK INC.
    Inventors: Kuan-Hung Chen, Kai-Sheng Chuang, Chia-Chi Chang, Yu-Fang Huang, Kai-Ting Yu, Wen-Chun Chen, Shu-Jung Hsu, Tsao-Wei Hung