Patents by Inventor Yung-Feng Chu

Yung-Feng Chu 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: 10775289
    Abstract: A gas detecting device includes a casing, an optical mechanism, a gas transporting actuator, a laser module, a particle detector and an external sensing module. The casing includes a chamber, an inlet, an outlet and a communication channel. The optical mechanism is disposed in the chamber. The optical mechanism includes an airflow channel and a light-beam channel. The airflow channel is in fluid communication with the at least one inlet and the outlet. The light-beam channel is in communication with the airflow channel. The gas transporting actuator is disposed on the optical mechanism. The laser module is disposed in the optical mechanism for emitting a light beam to the airflow channel. The particle detector detects sizes and a concentration of the suspended particles in the air. The external sensing module is installed in the communication channel to measure the air.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: September 15, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Hung-Chun Hu, Young-Chih Kuo, Jui-Yuan Chu, Chien-Chih Huang, Wen-Hsiung Liu, Yi-Cheng Huang, Wei-Chen Liao, Chi-Chiang Hsieh, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20200135470
    Abstract: The present disclosure describes a system and a method for a ion implantation (IMP) process. The system includes an ion implanter configured to scan an ion beam over a target for a range of angles, a tilting mechanism configured to support and tilt the target, an ion-collecting device configured to collect a distribution and a number of ejected ions from the ion beam scan over the target, and a control unit configured to adjust a tilt angle based on a correction angle determined based on the distribution and number of ejected ions.
    Type: Application
    Filed: April 11, 2019
    Publication date: April 30, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chun-Jung HUANG, Li-Hsin CHU, Po-Feng TSAI, Henry PENG, Kuang Huan HSU, Tsung Wei CHEN, Yung-Lin HSU
  • Publication number: 20190234851
    Abstract: A gas detecting device includes a casing, an optical mechanism, a gas transporting actuator, a laser module, a particle detector and an external sensing module. The casing includes a chamber, an inlet, an outlet and a communication channel. The optical mechanism is disposed in the chamber. The optical mechanism includes an airflow channel and a light-beam channel. The airflow channel is in fluid communication with the at least one inlet and the outlet. The light-beam channel is in communication with the airflow channel. The gas transporting actuator is disposed on the optical mechanism. The laser module is disposed in the optical mechanism for emitting a light beam to the airflow channel. The particle detector detects sizes and a concentration of the suspended particles in the air. The external sensing module is installed in the communication channel to measure the air.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 1, 2019
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan MOU, Hung-Chun HU, Young-Chih KUO, Jui-Yuan CHU, Chien-Chih HUANG, Wen-Hsiung LIU, Yi-Cheng HUANG, Wei-Chen LIAO, Chi-Chiang HSIEH, Chi-Feng HUANG, Yung-Lung HAN
  • Patent number: 4694114
    Abstract: Alkyl aromatic hydrocarbons including ethyl benzene are isomerized to xylenes utilizing a catalyst consisting essentially of ZSM-23 zeolite, platinum (or other metal such as palladium, nickel, gold, zinc, or gallium) and an alumina support.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: September 15, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Yung-Feng Chu, James C. Vartuli
  • Patent number: 4686312
    Abstract: Disclosed is a multistage process for converting lower aliphatic oxygeanated hydrocarbon feedstock to hydrocarbon product rich in benzene, toluene and/or xylene which comprises:contacting said oxygenated hydrocarbons in a primary stage with a medium pore shape selective acidic zeolite to an intermediate hydrocarbon product comprising predominantly aliphatic hydrocarbons;contacting at least a portion of the aliphatic hydrocarbons from the primary stage with a secondary stage catalyst comprising gallium-promoted medium pore shape selective zeolite characterized by a constraint index within the approximate range of 1 to 12 and a silica to alumina ratio of about 20 to 100:1; thereby producing benzene, toluene and/or xylene.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: August 11, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Yung-Feng Chu, Arthur W. Chester
  • Patent number: 4605678
    Abstract: A process for removing catalyst fines from the wax product produced in a slurry Fischer-Tropsch reactor comprises removing the wax product from the reactor and separating the catalyst fines by passing the wax product through a high gradient magnetic field, whereby the catalyst fines are held by a magnetized filter element and the wax product passes through unhindered to form a purified wax product which is ready for upgrading. The separated catalyst fines are returned to the reactor by backwashing the filter element.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: August 12, 1986
    Assignee: Mobil Oil Corporation
    Inventors: James A. Brennan, Arthur W. Chester, Yung-Feng Chu
  • Patent number: 4594146
    Abstract: A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of a fresh unsteamed catalyst.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: June 10, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Yung-Feng Chu
  • Patent number: 4523047
    Abstract: The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts. The treated carrier is returned to the reactor system and the accumulation of high viscosity paraffin in the reactor slurry is minimized. Suitable catalysts include a mixture of cracking and isomerization catalysts. Zeolite ZSM-45 is a novel constituent of the catalyst system.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: June 11, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Tai-Sheng Chou, Yung-Feng Chu
  • Patent number: 4471145
    Abstract: The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts. The treated carrier is returned to the reactor system and the accumulation of high viscosity paraffin in the reactor slurry is minimized. Suitable catalysts include a mixture of cracking and isomerization catalysts. Zeolite Beta is the novel constituent of the catalyst system.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: September 11, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Yung-Feng Chu, Tai-Sheng Chou, Arthur W. Chester
  • Patent number: 4469909
    Abstract: This invention provides a catalytic process for converting to BTX a C.sub.9 + monocyclic aromatic hydrocarbon feed having a prescribed content of alkyl groups with more than one carbon atom. It further provides a process wherein said conversion is coupled with a catalytic xylene isomerization unit. The catalyst used in the process is a steamed composite comprising platinum and a crystalline zeolite such as ZSM-5.
    Type: Grant
    Filed: September 1, 1983
    Date of Patent: September 4, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Yung-Feng Chu
  • Patent number: 4423265
    Abstract: The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts. The treated carrier is returned to the reactor system and the accumulation of high viscosity paraffin in the reactor slurry is minimized. Suitable catalysts include a mixture of cracking and isomerization catalysts.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: December 27, 1983
    Assignee: Mobil Oil Corporation
    Inventors: Yung-Feng Chu, Tai-Sheng Chou, Arthur W. Chester
  • Patent number: 4377721
    Abstract: An improved process for alkylation of isoparaffins with olefins to yield a product which includes a high proportion of highly branched alkylates for blending into gasolines. The improved process comprises contacting the isoparaffins and olefins with a catalyst comprising ZSM-20, preferably a HZSM-20 zeolite or a rare-earth cation exchanged ZSM-20 zeolite.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: March 22, 1983
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Yung-Feng Chu