Patents by Inventor Chang An Yang

Chang An Yang 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: 11374233
    Abstract: An apparatus for manufacturing a gas diffusion layer for fuel cells includes: a conveyer transferring a base sheet for a macroporous layer of the gas diffusion layer in one direction before water repellent coating; a nozzle disposed around the conveyer to coat the transferring base sheet with a water repellent in a fiber type or desired pattern; and a nozzle transfer unit combined with an upper end of the nozzle to transfer the nozzle along a desired trajectory.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: June 28, 2022
    Assignee: Hyundai Motor Company
    Inventors: Kook Il Han, Yoo Chang Yang, Sang Mun Jin
  • Publication number: 20220189568
    Abstract: The present technology relates to an electronic device. A memory device that controls a voltage applied to each line to prevent or mitigate a channel negative boosting phenomenon during a sensing operation includes a memory block connected to a plurality of lines, a peripheral circuit configured to perform a sensing operation on selected memory cells connected to a selected word line among the plurality of lines, and control logic configured to control voltages applied to drain select lines, source select lines, and word lines between the drain select lines and the source select lines among the plurality of lines, during the sensing operation and an equalizing operation performed after the sensing operation. The control logic controls a voltage applied to an unselected drain select line according to whether a cell string is shared with a selected drain select line among the drain select lines, during the sensing operation.
    Type: Application
    Filed: June 24, 2021
    Publication date: June 16, 2022
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Hae Chang YANG, Hun Wook LEE
  • Publication number: 20220179264
    Abstract: The invention refers to a diffusion plate and a backlight module having the diffusion plate. The diffusion plate comprises a plate-body and a plurality of pyramid-like structures arranged on a surface of the plate-body. Each pyramid-like structure has a bottom surface, a first convex portion and a second convex portion. The first convex portion and the second convex portion have different vertex angles, and therefore the pyramid-like structure can also be called as “pyramid-like structure with multiple vertex angles”. The pyramid-like structures with multiple vertex angles can increase the light splitting points, which can improve the light splitting effect of the diffusion plate. The light source of a single light-emitting diode can be divided into eight point-light sources (light splitting points) or more, which is double the number of light splitting points compared with the traditional pyramid structure with single vertex, and thus can greatly improve the light diffusion effect.
    Type: Application
    Filed: October 26, 2021
    Publication date: June 9, 2022
    Applicant: Entire Technology Co., Ltd.
    Inventors: Yan-Zuo Chen, Hung Han Kao, Tsung-Chang Yang
  • Patent number: 11355207
    Abstract: A memory device, and a method of operating the memory device, includes a memory block configured to include a plurality of memory cells that are stacked to be spaced apart from each other on a substrate and to include word lines coupled to the plurality of memory cells, and bit lines and a source line coupled to both ends of strings including the plurality of memory cells, and peripheral circuits configured to perform an erase operation on the memory block, wherein the peripheral circuits are configured to perform the erase operation on the plurality of memory cells included in the memory block, and thereafter perform a defect detection operation on memory cells selected from among the plurality of memory cells depending on sizes of the plurality of memory cells.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: June 7, 2022
    Assignee: SK hynix Inc.
    Inventors: Dong Uk Lee, Hae Chang Yang
  • Publication number: 20220166168
    Abstract: A connector includes multiple ground terminals, multiple signal terminals, a cable and a ground assembly. The cable includes multiple ground wires and multiple signal wires. The ground assembly includes a plate and multiple protrusion structures. Each protrusion structure is arranged spacedly and extended from the plate. A top of each protrusion structure is higher than a surface of the plate. Each ground wire is electrically connected with each ground terminal and each protrusion structure. Each signal wire is electrically connected with each signal terminal. Each signal wire is formed between any two of the protrusion structures adjacent to each other. Therefore, high-speed transmission of digital signals may be undistortedly implemented.
    Type: Application
    Filed: July 5, 2021
    Publication date: May 26, 2022
    Inventors: Yun-Chang YANG, Ching-Hung LIU, Siang-Ting WANG
  • Publication number: 20220151219
    Abstract: A trap is provided, including: a clamping device, being operable to provide a catching space; and a shielding member, movably connected to the clamping device, the shielding member being movable to shield at least part of the catching space.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 19, 2022
    Inventor: Ming-Chang YANG
  • Patent number: 11309436
    Abstract: A semiconductor memory device includes, a stack structure, and a channel structure passing through the stack structure, wherein the channel structure includes a channel layer passing through the stack structure and a memory layer surrounding the channel layer, the stack structure includes a gate contacting the channel layer, and the channel layer and the gate form a Schottky junction.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 19, 2022
    Assignee: SK hynix Inc.
    Inventors: Dong Uk Lee, Hae Chang Yang
  • Publication number: 20220099084
    Abstract: A miniature fluid transportation device is provided and includes a convergence component, a valve component, an outlet plate and a plurality of fluid transportation actuation components. The plurality of fluid transportation actuation components are disposed on the convergence component so as to transport the fluid to the convergence component. The convergence component guides the fluid transported by the fluid transportation actuation components to the outlet plate through the valve component. The outlet plate guides the fluid from different transportation actuation components back to the convergence component by a separation guiding block. The fluid is converged in a convergence central slot of the convergence component and is discharged out through a collection channel of the outlet plate. Consequently, the problem of interference owing to the convergence of the fluid transported by different fluid transportation actuation components can be avoided.
    Type: Application
    Filed: August 2, 2021
    Publication date: March 31, 2022
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Chi-Chang Yang, Jyun-Yi Jhang, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai, Wei-Ming Lee
  • Publication number: 20220093194
    Abstract: A controller including a test manager configured to output a program command for performing a program operation of a memory block and a suspend command for stopping the program operation, and a memory interface configured to transmit the program command to a memory device including the memory block, and transmit the suspend command to the memory device after a set time elapses. The test manager outputs a read command for reading memory cells included in the memory block, the memory interface calculates a count value by counting data output from the memory device in response to the read command, and the test manager generates status information on the memory block according to the count value.
    Type: Application
    Filed: March 22, 2021
    Publication date: March 24, 2022
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Hae Chang YANG, Hun Wook LEE
  • Publication number: 20220068960
    Abstract: A semiconductor memory device and methods of manufacturing and operating the same are set forth. The semiconductor memory device includes a stack structure including a plurality of interlayer insulating layers and a plurality of gate electrodes, which may be alternately stacked on a substrate, and a plurality of channel structures penetrating the stack structure in a vertical direction. Each of the plurality of channel structures includes a channel layer, a tunnel insulating layer, an emission preventing layer, and a charge storage layer, each of which vertically extends toward the substrate.
    Type: Application
    Filed: February 11, 2021
    Publication date: March 3, 2022
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Hae Chang YANG
  • Publication number: 20210391624
    Abstract: The invention provides a battery management device. The battery management device includes a container, a battery, and an electronic assembly. The container has an airtight space. The battery is located within the airtight space. The electronic assembly is located within the airtight space and electrically connected to the battery. The electronic assembly includes an air pressure sensor, and the air pressure sensor is configured to sense an air pressure in the airtight space.
    Type: Application
    Filed: December 15, 2020
    Publication date: December 16, 2021
    Inventor: Yuan-Chang YANG
  • Publication number: 20210302254
    Abstract: The present disclosure provides a transparent pressure sensor including: a first substrate on which a micropattern having pyramidal structures is formed; a first electrode layer coated on the micropattern of the first substrate; a second substrate stacked on the first electrode layer; and a second electrode layer stacked on the second substrate, wherein the first substrate and the second substrate show a difference in light refractive index of 10% or less in the visible light region.
    Type: Application
    Filed: December 2, 2020
    Publication date: September 30, 2021
    Inventors: Steve Park, Han Byul Choi, Jin Won Oh, Jun Chang Yang
  • Publication number: 20210304831
    Abstract: A memory device, and a method of operating the memory device, includes a memory block configured to include a plurality of memory cells that are stacked to be spaced apart from each other on a substrate and to include word lines coupled to the plurality of memory cells, and bit lines and a source line coupled to both ends of strings including the plurality of memory cells, and peripheral circuits configured to perform an erase operation on the memory block, wherein the peripheral circuits are configured to perform the erase operation on the plurality of memory cells included in the memory block, and thereafter perform a defect detection operation on memory cells selected from among the plurality of memory cells depending on sizes of the plurality of memory cells.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 30, 2021
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Hae Chang YANG
  • Patent number: 11121380
    Abstract: The present disclosure relates to a fuel cell stack having a cathode-side separator and an anode-side separator which are made of different materials to prevent performance degradation of stacks and corrosion and damage of components. A fuel cell stack according to exemplary embodiments of the present disclosure may have multiple unit cells stacked therein, in which each unit cell of the multiple unit cells may include: a membrane electrode assembly (MEA); a pair of gas diffusion layers (GDLs) disposed on opposite surfaces of the MEA; and an anode-side separator and a cathode-side separator disposed to face each other, the MEA and the pair of GDLs being disposed therebetween, in which the cathode-side separator has a corrosion resistance higher than a corrosion resistance of the anode-side separator.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: September 14, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dae Il Yoon, Yoo Chang Yang
  • Patent number: 11112068
    Abstract: An LED tube lamp comprises a glass tube, two end caps coupled to a respective end of the glass tube, an LED light strip attached to an inner circumferential surface of the glass tube, a protective layer disposed on a surface of the LED light strip, a plurality of LED light sources mounted on the LED light strip, two first soldering pads arranged at an end of the LED light strip, two notches formed at an edge of the end of the LED light strip, a power supply module configured to drive the plurality of LED light sources. The protective layer comprises two openings to expose the two first soldering pads. The power supply module comprises a printed circuit board comprising two second soldering pads and each of the two first soldering pad soldered to the respective second soldering pad by a solder. The solder is disposed on the first soldering pad, the corresponding second soldering pad and in the corresponding notch.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: September 7, 2021
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Li-Qin Li, Tao Jiang, Chang Yang, Bao Wang, Aiming Xiong
  • Publication number: 20210272969
    Abstract: A semiconductor device includes: a stack structure including gate patterns and insulating patterns; a channel layer penetrating the stack structure; a memory layer penetrating the stack structure, the memory layer surrounding the channel layer; and a select transistor connected to the channel layer. The select transistor includes: a carbon layer Schottky-joined with the channel layer; a select gate spaced apart from the carbon layer; and a gate insulating layer between the select gate and the carbon layer.
    Type: Application
    Filed: July 29, 2020
    Publication date: September 2, 2021
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Hae Chang YANG
  • Publication number: 20210272970
    Abstract: A switching element comprising: a first gate dielectric layer formed over a substrate; a second gate dielectric layer formed over the first gate dielectric layer to overlap a part of the first gate dielectric layer, and including a ferroelectric material; a second gate electrode formed over the second gate dielectric layer; and a first gate electrode located between the first and second gate dielectric layers, and configured to control the second gate dielectric layer to selectively have negative capacitance.
    Type: Application
    Filed: February 23, 2021
    Publication date: September 2, 2021
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Hae Chang YANG
  • Publication number: 20210257222
    Abstract: A method for packaging an integrated circuit chip includes the steps of: a) providing a plurality of dies and a lead frame which includes a plurality of bonding parts each having a die pad, a plurality of leads each having an end region disposed on and connected to the die pad, and a plurality of bumps each disposed on the end region of a respective one of the leads; b) transferring each of the dies to the die pad of a respective one of the bonding parts to permit each of the dies to be flipped on the respective bonding part; and c) hot pressing each of the dies and the die pad of a respective one of the bonding parts to permit each of the dies to be bonded to the bumps of the respective bonding part.
    Type: Application
    Filed: January 22, 2021
    Publication date: August 19, 2021
    Applicant: MACROBLOCK. INC.
    Inventors: Li-Chang YANG, Yi-Sheng LIN
  • Publication number: 20210257700
    Abstract: A battery device with pressure relief valve includes a battery module, a holder, a shell surrounding the battery module, a first cover mounted to one end of the shell, a pressure relief valve, and a second cover mounted to the other end of the shell. The battery module includes a plurality of batteries interconnected in series or in parallel. The plurality of the batteries are fastened to the holder. The first cover has a fastening hole communicated with an inside of the shell and an outside. The pressure relief valve fastened in the fastening hole, has a base area and a thin area. The base area surrounds the thin area. Several portions of a middle of a bottom surface of the thin area are recessed inward to form a plurality of indentations intersected to form a dehiscent point located at a junction among the plurality of the indentations.
    Type: Application
    Filed: December 15, 2020
    Publication date: August 19, 2021
    Inventors: MIN YU WU, TA CHANG YANG
  • Patent number: D932458
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: October 5, 2021
    Inventors: John Peng Chang Yang, Sarah Shu Ming Yang