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: 20230266547Abstract: 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: ApplicationFiled: May 3, 2022Publication date: August 24, 2023Inventors: Chi-Hsien SUN, Hsu-Feng CHANG, Ching-Hung LIU, Chieh-Ming CHENG
-
Publication number: 20230260961Abstract: 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: ApplicationFiled: February 17, 2022Publication date: August 17, 2023Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kai-Fung Chang, Sheng-Feng Weng, Ming-Yu Yen, Chih-Wei Lin, Ching-Hua Hsieh
-
Publication number: 20230218623Abstract: 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: ApplicationFiled: May 5, 2021Publication date: July 13, 2023Inventors: 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: 20230198250Abstract: 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: ApplicationFiled: December 16, 2021Publication date: June 22, 2023Applicant: Vanguard International Semiconductor CorporationInventors: 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: 10253264Abstract: 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: GrantFiled: October 1, 2017Date of Patent: April 9, 2019Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
-
Publication number: 20180282166Abstract: 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: ApplicationFiled: June 5, 2018Publication date: October 4, 2018Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
-
Patent number: 10011492Abstract: 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: GrantFiled: August 20, 2014Date of Patent: July 3, 2018Assignee: GrafTech International Holdings Inc.Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
-
Publication number: 20180023004Abstract: 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: ApplicationFiled: October 1, 2017Publication date: January 25, 2018Applicant: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
-
Patent number: 9777221Abstract: 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: GrantFiled: June 29, 2006Date of Patent: October 3, 2017Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
-
Patent number: 9758905Abstract: 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: GrantFiled: November 5, 2013Date of Patent: September 12, 2017Assignee: GrafTech International Holdings Inc.Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
-
Patent number: 9683313Abstract: 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: GrantFiled: August 20, 2013Date of Patent: June 20, 2017Assignee: 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: 20160200579Abstract: 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: ApplicationFiled: August 20, 2014Publication date: July 14, 2016Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
-
Publication number: 20150284880Abstract: 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: ApplicationFiled: November 5, 2013Publication date: October 8, 2015Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
-
Publication number: 20150233023Abstract: 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: ApplicationFiled: August 20, 2013Publication date: August 20, 2015Inventors: Ching-Feng Chang, Bassam Kamal Alnasleh, Omer Gul, Robert E Miller, Andrew Adam Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
-
Patent number: 8828348Abstract: 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: GrantFiled: July 21, 2011Date of Patent: September 9, 2014Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
-
Patent number: 8747651Abstract: 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: GrantFiled: May 22, 2008Date of Patent: June 10, 2014Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis
-
Publication number: 20140102277Abstract: 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: ApplicationFiled: October 11, 2012Publication date: April 17, 2014Applicant: KING SAW MACHINERY LTD.Inventor: Ching-Feng CHANG
-
Patent number: 8658315Abstract: 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: GrantFiled: July 21, 2011Date of Patent: February 25, 2014Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
-
Patent number: 8530094Abstract: 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: GrantFiled: July 21, 2011Date of Patent: September 10, 2013Assignee: Graftech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richart T. Lewis, Aaron Tomasek, Richard L. Shao
-
Publication number: 20130012744Abstract: 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: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis, Aaron Tomasek, Richard L. Shao