Patents by Inventor Chen-Hsien Lee

Chen-Hsien Lee 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: 20240145132
    Abstract: An over-current protection device includes first and second electrode layers and a PTC material layer laminated therebetween. The PTC material layer includes a polymer matrix, and a conductive filler. The polymer matrix has a fluoropolymer. The total volume of the PTC material layer is calculated as 100%, and the fluoropolymer accounts for 47-62% by volume of the PTC material layer. The fluoropolymer has a melt viscosity higher than 3000 Pa·s.
    Type: Application
    Filed: March 16, 2023
    Publication date: May 2, 2024
    Inventors: CHENG-YU TUNG, CHEN-NAN LIU, Chia-Yuan Lee, HSIU-CHE YEN, YUNG-HSIEN CHANG, Yao-Te Chang, FU-HUA CHU
  • Publication number: 20240145133
    Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a polymer matrix and a first conductive filler. The polymer matrix includes a polyolefin-based polymer and a fluoropolymer. The fluoropolymer has a melt flow index higher than 1.9 g/10 min, and the polyolefin-based polymer and the fluoropolymer together form an interpenetrating polymer network (IPN). The first conductive filler has a metal-ceramic compound dispersed in the polymer matrix.
    Type: Application
    Filed: April 5, 2023
    Publication date: May 2, 2024
    Inventors: CHEN-NAN LIU, YUNG-HSIEN CHANG, CHENG-YU TUNG, HSIU-CHE YEN, Chia-Yuan LEE, Yao-Te CHANG, FU-HUA CHU
  • Patent number: 11966546
    Abstract: A display device includes a base layer, a touch sensing layer, a light guide module and a display panel. The touch sensing layer is disposed on the base layer. The light guide module is disposed on the touch sensing layer. The touch sensing layer is located between the light guide module and the display panel, and the touch sensing layer and one of the light guide module and the display panel have no adhesive material therebetween.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: April 23, 2024
    Assignee: E Ink Holdings Inc.
    Inventors: Chen-Cheng Lin, Chia-I Liu, Kun-Hsien Lee, Hung-Wei Tseng
  • Publication number: 20240127989
    Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a first polymer and a conductive filler. The first polymer consists of polyvinylidene difluoride (PVDF), and PVDF exists in different phases such as ?-PVDF, ?-PVDF and ?-PVDF. The total amount of ?-PVDF, ?-PVDF and ?-PVDF is calculated as 100%, and the amount of ?-PVDF accounts for 33% to 42%.
    Type: Application
    Filed: January 25, 2023
    Publication date: April 18, 2024
    Inventors: CHIA-YUAN LEE, CHENG-YU TUNG, HSIU-CHE YEN, CHEN-NAN LIU, YUNG-HSIEN CHANG, YAO-TE CHANG, FU-HUA CHU
  • Publication number: 20240127988
    Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a first polymer and a conductive filler. The first polymer consists of polyvinylidene difluoride (PVDF), and PVDF exists in different phases such as ?-PVDF, ?-PVDF and ?-PVDF. The total amount of ?-PVDF, ?-PVDF and ?-PVDF is calculated as 100%, and the amount of ?-PVDF accounts for 48% to 55%. The conductive filler has a metal-ceramic compound.
    Type: Application
    Filed: March 2, 2023
    Publication date: April 18, 2024
    Inventors: HSIU-CHE YEN, YUNG-HSIEN CHANG, CHENG-YU TUNG, Chia-Yuan Lee, CHEN-NAN LIU, Yao-Te Chang, FU-HUA CHU
  • Patent number: 11956541
    Abstract: A control method of a driving mechanism is provided, including: the driving mechanism provides a first electrical signal from a control assembly to the driving mechanism to move the movable portion into an initial position relative to the fixed portion, wherein the control assembly includes a control unit and a position sensing unit; the status signal of an inertia sensing unit is read; the control unit sends the status signal to the control unit to calculate a target position; the control unit provides a second electrical signal to the driving assembly according to the target position for driving the driving assembly; a position signal is sent from the position sensing unit to the control unit; the control unit provides a third electric signal to the driving assembly to drive the driving assembly according the position signal.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: April 9, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Sung-Mao Tsai, Yueh-Lin Lee, Yu-Chiao Lo, Mao-Kuo Hsu, Ching-Chieh Huan, Yi-Chun Cheng
  • Patent number: 11947180
    Abstract: An optical system is provided. The optical system includes a first movable portion, a fixed portion, a first driving assembly, and a first sensing assembly. The first movable portion is used for connecting to an optical assembly having a main axis. The first movable portion is movable relative to the fixed portion. The first driving assembly is used for driving the first movable portion to move relative to the fixed portion. The first sensing assembly is used for sensing the movement of the first movable portion relative to the fixed portion.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: April 2, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Yueh-Lin Lee, Yu-Chiao Lo
  • Patent number: 11944019
    Abstract: A memory device includes a substrate, a transistor disposed over the substrate, an interconnect structure disposed over and electrically connected to the transistor, and a memory stack disposed between two adjacent metallization layers of the interconnect structure. The memory stack includes a bottom electrode disposed over the substrate and electrically connected to a bit line, a memory layer disposed over the bottom electrode, a selector layer disposed over the memory layer, and a top electrode disposed over the selector layer and electrically connected to a word line. Besides, at least one moisture-resistant layer is provided adjacent to and in physical contact with the selector layer, and the at least one moisture-resistant layer includes an amorphous material.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: March 26, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Feng Hsu, Chien-Min Lee, Tung-Ying Lee, Cheng-Hsien Wu, Hengyuan Lee, Xinyu Bao
  • Patent number: 11934034
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and an assist assembly. The movable portion is used for connecting to an optical element having a main axis. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The assist assembly limits the movement of the movable portion relative to the fixed portion.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 19, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chen-Hsien Fan, Yueh-Lin Lee, Yu-Chiao Lo, Sung-Mao Tsai, Shang-Hung Chen
  • Patent number: 11914169
    Abstract: An optical member driving mechanism is provided. The optical member driving mechanism is configured to hold an optical member and drive the optical member to move. The optical member driving mechanism includes a first movable portion, a fixed portion, and a driving assembly. The first movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the first movable portion to move relative to the fixed portion.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 27, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chen-Hsien Fan, Sung-Mao Tsai, Chia-Che Wu, Yueh-Lin Lee
  • Publication number: 20050175762
    Abstract: The invention relates to methods and compositions for the inhibition of lipid oxidation in food products susceptible to lipid oxidation. The invention provides natural lipophilic antioxidant compositions extracted from fruit used for use in a variety of products to inhibit lipid oxidation. Also, disclosed herein are methods using the natural lipophilic antioxidants extracted from fruit to reduce food spoilage and extend shelf life in food products susceptible to lipid oxidation.
    Type: Application
    Filed: October 22, 2004
    Publication date: August 11, 2005
    Inventors: Mark Richards, Chen-Hsien Lee, Jess Reed