Patents by Inventor Chi Ho

Chi Ho 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).

  • Positive electrode active material particle including core containing lithium cobalt oxide and coating layer containing boron and fluorine, and preparation method thereof
    Patent number: 10868309
    Abstract: Provided is a positive electrode active material particle including a core containing lithium cobalt oxide represented by the following Chemical Formula 1; and a coating layer containing boron (B) and fluorine (F), which is coated on the surface of the core: Li1+xCo1?xO2??(1)
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 15, 2020
    Inventors: Bo Ram Lee, Sung Bin Park, Young Uk Park, Chi Ho Jo, Hyuck Hur, Wang Mo Jung
  • METHOD FOR PREPARATION OF PEROVSKITE QUANTUM DOT (PQD)/POLYMER/CERAMIC TERNARY COMPLEX
    Publication number: 20200385632
    Abstract: A method for preparation of perovskite quantum dot (PQD)/polymer/ceramic ternary complex includes encapsulation of bifunctional coating including ceramic and polymer. Encapsulation sequence of polymer and ceramic may be altered according to the application. In one scenario, the perovskite quantum dots may be protected with ceramic coating first and further coated with polymer to obtain the perovskite/ceramic/polymer ternary complex. In another scenario, the perovskite quantum dots may be protected with polymer coating first and followed by ceramic coating to obtain the perovskite/polymer/ceramic ternary complex. The PQD ternary complex may provide synergistic effect on improvement of stability towards heat and moisture when compared to existing technology.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 10, 2020
    Inventors: Chi Hin Wong, Wing Yin Yung, Sze Chun Yiu, Chi Ho Kwok, Chenmin Liu
  • Optical lens system
    Patent number: 10852510
    Abstract: Disclosed is a photographic optical lens system. The disclosed photographic optical lens system includes a stop, a lens group including at least one aspherical lens, and an image sensor configured to record an image transmitted through the lens group, wherein the photographic optical lens system satisfies the following Expression: 0.15?(DL1-L2)/OAL?0.4??<Expression> where DL1-L2 in Expression denotes a distance from a center of a first surface of a lens closest to an object (hereinafter, referred to as a first lens) to a center of a second surface of a second lens arranged directly next to the first lens, and OAL denotes a distance (a total length of the lens group) from the center of the first surface of the first lens to a center of a second surface of a lens arranged farthest from the object.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: December 1, 2020
    Assignee: ACE SOLUTECH CO., LTD.
    Inventors: Pil Sun Jung, Dong Young Kim, Chi Ho An
  • ELECTRONIC DEVICE AND METHOD FOR FABRICATING THE SAME
    Publication number: 20200373353
    Abstract: This technology provides an electronic device and a method for fabricating the same. An electronic device in accordance with an implementation of this document may include a substrate including a first portion in a first region and a second portion in a second region; a plurality of memory cells disposed over the first portion of the substrate; a first insulating layer extending over the second portion of the substrate and at least partially filling a space between adjacent ones of the plurality of memory cells; and a second insulating layer disposed over the first insulating layer. The first insulating layer has a dielectric constant smaller than that of the second insulating layer, a thermal conductivity smaller than that of the second insulating layer, or both.
    Type: Application
    Filed: December 11, 2019
    Publication date: November 26, 2020
    Inventors: Chi-Ho KIM, Min-Seon KANG, Hyun-Seok KANG, Hyo-June KIM, Jae-Geun OH, Su-Jin CHAE
  • Photographing lens optical system
    Patent number: 10838167
    Abstract: Provided is a photographing lens optical system. The lens optical system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially arranged from an object to an image sensor. The first lens may have a negative (?) refractive power and have an exit surface that is concave with respect to the image sensor. The lens optical system may satisfy at least one of a condition 100°<FOV<200° and a condition 1<TTL/ImgH<2. Herein, FOV denotes an angle of view of the lens optical system, TTL denotes a distance from an incidence surface of the first lens to the image sensor, and ImgH denotes a diagonal length of a maximum pixel region of the image sensor.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: November 17, 2020
    Assignee: ACE SOLUTECH CO., LTD.
    Inventors: Pil Sun Jung, Dong Young Kim, Chi Ho An
  • SOLID ELECTROLYTE FILM FOR SULFIDE-BASED ALL-SOLID-STATE BATTERIES
    Publication number: 20200358085
    Abstract: A solid electrolyte film for sulfide-based all-solid-state batteries, and more particularly a composition of a solid electrolyte, a binder, and a solvent used to manufacture a solid electrolyte film for sulfide-based all-solid-state batteries that is thin and has high ion conductivity. In particular, a solid electrolyte film composition for sulfide-based all-solid-state batteries including a solvent having a dielectric constant of x (1.5<x<3.0). The thickness of a solid electrolyte film for sulfide-based all-solid-state batteries manufactured using the solid electrolyte film composition is 60 ?m or less, and the solid electrolyte film is capable of being stably used for at least 1000 hours or more, and up to 2000 hours, based on the evaluation of Li plating and stripping.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 12, 2020
    Applicants: LG CHEM, LTD., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Darren H.S. TAN, Zheng CHEN, Ying Shirley Meng, Chi Ho JO, Wang Mo JUNG
  • DISPLAY PANEL
    Publication number: 20200355956
    Abstract: A display panel including a first substrate, a second substrate, and a display medium layer, a pixel array structure, and a first spacer that are disposed between the first substrate and the second substrate is provided. The pixel array structure includes a first signal line, and has a first platform region located on the first signal line, a first display region and a first support region located between the first platform region and the first display region. A first platform top surface of the first platform region and the first substrate are spaced by a first distance. A support top surface of the first support region and the first substrate are spaced by a second distance. A display top surface of the first display region and the first substrate are spaced by a third distance. A terminal surface of the first spacer contacts the first platform top surface.
    Type: Application
    Filed: November 20, 2019
    Publication date: November 12, 2020
    Applicant: Au Optronics Corporation
    Inventors: Chi-Ho Chang, An-Cheng Chou, Yu-Chang Wen
  • Lithium Cobalt-Based Positive Electrode Active Material, Preparation Method Thereof, Positive Electrode Including Same, and Secondary Battery Including Positive Electrode
    Publication number: 20200343537
    Abstract: A method for preparing a lithium cobalt-based positive electrode active material and a positive electrode active material prepared by the method are provided. The method includes dry-mixing and then heat treating a lithium cobalt oxide particle represented by Formula 1 and one or more lithium metal oxide particle selected from the group consisting of lithium aluminum oxide, lithium zirconium oxide, and lithium titanium oxide.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 29, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Chi Ho Jo, Min Kyu You, Sung Bin Park, Hyuck Hur, Jin Tae Hwang, Wang Mo Jung
  • SPEAKER WITH BROADCASTING MODE AND BROADCASTING METHOD THEREOF
    Publication number: 20200341721
    Abstract: Systems and methods for broadcasting an audio stream to a plurality of speakers with a broadcasting mode. In one example, a method includes, responsive to a first speaker of a plurality of speakers receiving a first audio stream from a first audio device and a request to enter a broadcasting mode, operating the first speaker in a master sub-mode of a broadcasting mode by: re-broadcasting the first audio stream from the first audio device via a second speaker of the plurality of speakers operating in a slave sub-mode of the broadcasting mode, the second speaker not receiving the first audio stream from the first audio device. In this way, an audio stream from an audio device may be re-broadcasting to a plurality of speakers via a broadcasting mode.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Inventor: Chi Ho Tsui
  • Alkali-promoted activated alumina adsorbent
    Patent number: 10799849
    Abstract: An adsorbent for removing CO2 from a gas mixture, the adsorbent comprising alumina and a carbonate compound where the carbonate to alumina IR absorbance intensity ratio is reduced by washing the adsorbent with water. The disclosure also describes a method of making adsorbent particles, process for removing CO2 from a gas mixture using the adsorbent, and an adsorption unit using the adsorbent.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 13, 2020
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Garret Chi-Ho Lau, Erin Marie Sorensen, Fred William Taylor, Timothy Christopher Golden, Robert Quinn, William Jack Casteel, Jr.
  • Voice generation with predetermined emotion type
    Patent number: 10803850
    Abstract: Techniques for generating voice with predetermined emotion type. In an aspect, semantic content and emotion type are separately specified for a speech segment to be generated. A candidate generation module generates a plurality of emotionally diverse candidate speech segments, wherein each candidate has the specified semantic content. A candidate selection module identifies an optimal candidate from amongst the plurality of candidate speech segments, wherein the optimal candidate most closely corresponds to the predetermined emotion type. In further aspects, crowd-sourcing techniques may be applied to generate the plurality of speech output candidates associated with a given semantic content, and machine-learning techniques may be applied to derive parameters for a real-time algorithm for the candidate selection module.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 13, 2020
    Inventors: Chi-Ho Li, Baoxun Wang, Max Leung
  • QR code graphic manufacturing device and manufacturing method of the same
    Patent number: 10803260
    Abstract: The present disclosure provides a QR code graphic manufacturing device, which comprises a gray-scaled adjusting module, a data-hiding module, and an error-diffusion module. The gray-scaled adjusting module is used to adjust a gray-scaled value of an original image to generate a modified gray-scaled image. The data-hiding module and the error-diffusion module are respectively used to process the modified gray-scaled image and a QR code, and to generate a QR code graphic with a better hidden effect.
    Type: Grant
    Filed: October 22, 2017
    Date of Patent: October 13, 2020
    Assignee: NATIONAL TAIWAN NORMAL UNIVERSITY
    Inventors: Hsi-Chun Wang, Chun-Shien Lu, Jia-Chi Ho, Shan-Hua Yeh, Yu-Mei Wang, Chia-Tsen Sun, Pei-Chun Kuan
  • NEGATIVE ELECTRODE ACTIVE MATERIAL HAVING HIGH OUTPUT CHARACTERISTICS AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20200313158
    Abstract: Disclosed are a negative electrode active material including lithium titanium oxide particles, wherein the lithium titanium oxide particles have an average particle diameter (D50) of 0.5-9 ?m, a specific surface area of 3-7 m2/g, and a pellet density of 1.7 g/cc or more under a pressure of 64 MPa, and a lithium secondary battery including the same.
    Type: Application
    Filed: March 21, 2018
    Publication date: October 1, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Bo-Ram LEE, Sung-Bin PARK, Ji-Young PARK, Chi-Ho JO, Jung-Min HAN, Hyuck HUR, Wang-Mo JUNG
  • LENS OPTICAL SYSTEM AND PHOTOGRAPHING DEVICE
    Publication number: 20200301106
    Abstract: Provided are a lens optical system and a photographing device including the lens optical system. The lens optical system includes first to eighth lenses that are sequentially arranged from an object side toward an image plane side and respectively have negative, negative, positive, positive, positive, negative, positive, and positive refractive powers. The lens optical system may satisfy an ultra-wide-angle condition: 130?FOV?240, where FOV (unit: °) refers to the field of view of the lens optical system.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 24, 2020
    Inventors: Pil Sun JUNG, Dong Young KIM, Chi Ho AN
  • POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLE FOR SULFIDE-BASED ALL-SOLID-STATE BATTERIES
    Publication number: 20200303720
    Abstract: A method of treating the surface of a positive electrode active material that is capable of inhibiting a reaction at the interface between a sulfide-based solid electrolyte and the positive electrode active material. A positive electrode active material particle for sulfide-based all-solid-state batteries, the surface of which is reformed, using the method and a sulfide-based all-solid-state battery, the charge/discharge characteristics of which are improved, including the same are also disclosed. The positive electrode active material particle for sulfide-based all-solid-state batteries manufactured using a dry-type method exhibits larger capacity than a positive electrode active material particle for sulfide-based all-solid-state batteries manufactured through a conventional wet-type process. In addition, the manufacturing process is simplified, and the amount of byproducts is reduced.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 24, 2020
    Applicants: LG CHEM, LTD., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Chi Ho JO, Wang Mo JUNG, Dong Hun LEE, Ying Shirley MENG, Abhik BANERJEE, Minghao ZHANG
  • OPTICAL PHOTOGRAPHING LENS SYSTEM
    Publication number: 20200301105
    Abstract: Provided is an optical photographing lens system. The optical lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens that are sequentially arranged from an object toward an image sensor. The fifth lens has a positive (+) power and the sixth lens has a negative (?) power, and the fifth lens and the sixth lens are cemented together to form a cemented lens having a positive (+) power.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 24, 2020
    Inventors: Pil Sun JUNG, Dong Young KIM, Chi Ho AN
  • APPARATUSES AND METHODS FOR ASSISTING, CONFIRMING, AND MONITORING PLACEMENT OF CATHETERS IN PATIENTS
    Publication number: 20200297238
    Abstract: A medical method performed by a medical device, includes: generating a ECG tracing using a first electrode placed on a surface of a patient and a second electrode at a catheter inside the patient; and outputting the ECG tracing for presentation to a user; wherein the first electrode is fixed in position with respect to the patient; and wherein an amplitude of the ECG tracing corresponds with a relative distance between the first electrode and the second electrode. A medical device includes: a first electrode configured for placement on a surface of a patient; a second electrode configured for coupling with a catheter; and a processing unit configured to generate a ECG tracing using the first electrode on the surface of the patient and the second electrode inside the patient.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 24, 2020
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventor: Chi-ho B. Tsui
  • Motor-driven power steering system
    Patent number: 10781906
    Abstract: A motor-driven power steering system includes a worm shaft unit having a worm gear, a worm wheel unit rotatably engaging with the worm gear, a housing unit having a worm receiving part formed therein to receive the worm shaft unit, and a shaft support unit having a support part located between the housing unit and the worm shaft unit to support the worm shaft unit, and a shaft pressing part located between the support part and the worm shaft unit to press the worm shaft unit towards the worm wheel unit.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 22, 2020
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Chi Ho Lee, Byeong Hoon Lee
  • OPTICAL IMAGING LENS SYSTEM
    Publication number: 20200292790
    Abstract: Provided is a lens optical system for image capturing. The lens optical system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens that are sequentially arranged in the stated order between an object and an image sensor.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 17, 2020
    Inventors: Pil Sun JUNG, Dong Young KIM, Chi Ho AN
  • HIGH-FREQUENCY DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20200294891
    Abstract: A high-frequency device manufacturing method is provided. The method includes providing a substrate; forming a conductive material on the substrate; standing the substrate and the conductive material for a first time duration; forming a conductive layer by sequentially repeating the steps of forming the conductive material and standing at least once; and patterning the conductive layer. The thickness of the conductive layer is in a range from 0.9 ?m to 10 ?m. A high-frequency device is also provided.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Inventors: Ming-Yen WENG, Ker-Yih KAO, Chia-Chi HO, Tsutomu SHINOZAKI, Cheng-Chi WANG, I-Yin LI