Patents by Inventor Ching-Feng Chang

Ching-Feng 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: 20230266547
    Abstract: A small form-factor pluggable transceiver is coupled to a cable connector and a network device. The small form-factor pluggable transceiver includes a first connection port, a conversion unit, a transceiver unit, and a second connection port. The conversion unit includes a bandwidth indication pin, and the transceiver unit includes a detection pin. The transceiver unit operates in a normal state based on providing a first voltage level by the detection pin, and operates in an abnormal state based on providing the second voltage level by the detection pin. The bandwidth indication pin indicates that a signal source received by the first connection port is a copper cable-type signal source, and indicates that a rate of the signal source is an invalid rate. The detection pin provides the first voltage level based on the invalid rated by being coupled to a ground point.
    Type: Application
    Filed: May 3, 2022
    Publication date: August 24, 2023
    Inventors: Chi-Hsien SUN, Hsu-Feng CHANG, Ching-Hung LIU, Chieh-Ming CHENG
  • Publication number: 20230260961
    Abstract: A semiconductor package includes a first substrate and a first semiconductor device. The first semiconductor device is bonded to the first substrate and includes a second substrate, a plurality of first dies and a second die. The first dies are disposed between the first substrate and the second substrate. The second die is surrounded by the first dies. A cavity is formed among the first dies, the first substrate and the second substrate, and a gap is formed between the second die and the first substrate.
    Type: Application
    Filed: February 17, 2022
    Publication date: August 17, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kai-Fung Chang, Sheng-Feng Weng, Ming-Yu Yen, Chih-Wei Lin, Ching-Hua Hsieh
  • Publication number: 20230218623
    Abstract: A salt of a neuroceutical and of an acid, wherein the neuroceutical is a substituted benzodiazepine, a substituted benzothiazepine, a substituted pyridopyrimidines or a substituted amino-cyclohexaneacetic acid; and the acid is benzoic acid, nicotinic acid, pantothenic acid and tannic acid. The molar ratio of the neuroceutical and the acid in the salt ranges from about 6:1 to about 1:5. Also disclosed herein are compositions comprising the neuroceutical salt and therapeutic uses thereof for treating a central nervous system (CNS) disorder or a metabolic disorder associated with the CNS disorder.
    Type: Application
    Filed: May 5, 2021
    Publication date: July 13, 2023
    Inventors: Guochuan Emil Tsai, Ching-Cheng Wang, Tien-Lan Hsieh, Yi-Feng Huang, Hsin-Hsin Yang, Ming-Hong Chien, Han-Yi Hsieh, Wei-Hua Chang
  • Publication number: 20230198250
    Abstract: An electrostatic discharge (ESD) protection circuit including a detection circuit, a voltage-divider element, and a discharge element is provided. The detection circuit is coupled between a first power line and a second power line. In response to an ESD event, the detection circuit enables a turn-on signal. The voltage-divider element is coupled between the first power line and a third power line and receives the turn-on signal. The discharge element is coupled between the second and third power lines. In response to the turn-on signal being enabled, the first discharge element discharges an ESD current.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 22, 2023
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Yeh-Ning JOU, Chieh-Yao CHUANG, Hsien-Feng LIAO, Ting-Yu CHANG, Chih-Hsuan LIN, Chang-Min LIN, Shao-Chang HUANG, Ching-Ho LI
  • Patent number: 10253264
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Grant
    Filed: October 1, 2017
    Date of Patent: April 9, 2019
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Publication number: 20180282166
    Abstract: A precursor having at least five percent of lignin based coke and d002 spacing of more than 3.36 angstroms and less 3.44 for making graphite. Methods for making a green/graphite article include mixing coke derived from a petroleum product, a coal product or a bitumen product with coke derived from lignin. Alternatively, the precursor material for the various types of coke may be mixed and coked together. The mixture may be formed into a desired shape. The article may be subsequently carbonized and graphitized. The amount of lignin derived coke comprises a sufficient quantity to change at least a selected property of the graphite article.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
  • Patent number: 10011492
    Abstract: A precursor having at least five percent of lignin based coke and d002 spacing of more than 3.36 angstroms and less 3.44 for making graphite. Methods for making a green/graphite article include mixing coke derived from a petroleum product, a coal product or a bitumen product with coke derived from lignin. Alternatively, the precursor material for the various types of coke may be mixed and coked together. The mixture may be formed into a desired shape. The article may be subsequently carbonized and graphitized. The amount of lignin derived coke comprises a sufficient quantity to change at least a selected property of the graphite article.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: July 3, 2018
    Assignee: GrafTech International Holdings Inc.
    Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
  • Publication number: 20180023004
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Application
    Filed: October 1, 2017
    Publication date: January 25, 2018
    Applicant: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Patent number: 9777221
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: October 3, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Patent number: 9758905
    Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 12, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
  • Patent number: 9683313
    Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: June 20, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Ching-Feng Chang, Bassam Alnasleh, Omer Gul, Robert E Miller, Andrew Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
  • Publication number: 20160200579
    Abstract: A precursor having at least five percent of lignin based coke and d002 spacing of more than 3.36 angstroms and less 3.44 for making graphite. Methods for making a green/graphite article include mixing coke derived from a petroleum product, a coal product or a bitumen product with coke derived from lignin. Alternatively, the precursor material for the various types of coke may be mixed and coked together. The mixture may be formed into a desired shape. The article may be subsequently carbonized and graphitized. The amount of lignin derived coke comprises a sufficient quantity to change at least a selected property of the graphite article.
    Type: Application
    Filed: August 20, 2014
    Publication date: July 14, 2016
    Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
  • Publication number: 20150284880
    Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 8, 2015
    Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
  • Publication number: 20150233023
    Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
    Type: Application
    Filed: August 20, 2013
    Publication date: August 20, 2015
    Inventors: Ching-Feng Chang, Bassam Kamal Alnasleh, Omer Gul, Robert E Miller, Andrew Adam Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
  • Patent number: 8828348
    Abstract: A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 9, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
  • Patent number: 8747651
    Abstract: A high coking value pitch prepared from coal tar distillate and has a low softening point and a high carbon value while containing substantially no quinoline insolubles is disclosed. The pitch can be used as an impregnant or binder for producing carbon and graphite articles.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: June 10, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis
  • Publication number: 20140102277
    Abstract: A height adjustment device for a band saw machine includes a fixing unit, an adjustment unit which is slidable relative to the fixing unit and at least one fixing member to secure the fixing unit the adjustment unit. Through the position of the adjustment unit relative to the fixing unit, the height of the band saw machine can be adjusted according to the user's height for the user to operate the band saw machine conveniently.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: KING SAW MACHINERY LTD.
    Inventor: Ching-Feng CHANG
  • Patent number: 8658315
    Abstract: A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: February 25, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
  • Patent number: 8530094
    Abstract: A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 10, 2013
    Assignee: Graftech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richart T. Lewis, Aaron Tomasek, Richard L. Shao
  • Publication number: 20130012744
    Abstract: A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis, Aaron Tomasek, Richard L. Shao