Patents by Inventor Feng-Tang CHANG

Feng-Tang 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: 20240073531
    Abstract: An automatic target image acquisition and calibration system for application in a defect inspection system is disclosed. During the defect inspection system working normally, the automatic target image acquisition and calibration system is configured to find a recognition structure from an article under inspection, and then determines a relative position and a relative 3D coordinate if the article. Therefore, a robotic arm is controlled to carry a camera to precisely face each of a plurality of inspected surfaces of the article, such that a plurality of article images are acquired by the camera. It is worth explaining that, during the defect inspection of the article, there is no need to modulate an image acquiring height and an image acquiring angle of the camera and an illumination of a light source.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 29, 2024
    Inventors: FENG-TSO SUN, YI-TING YEH, FENG-YU SUN, JYUN-TANG HUANG, RONG-HUA CHANG, YI-HSIANG TIEN, MENG-TSE SHEN
  • Patent number: 10603623
    Abstract: A serial-rotor type high efficiency purification system includes a first rotor, a second rotor and an incinerator. The first rotor has a first adsorption zone and a first desorption zone. The first adsorption zone is adapted to adsorb VOCs and expel a first adsorption-treated air. The first desorption zone is adapted for the VOCs to be desorbed and to expel a first desorption-treated air. The second rotor has a second adsorption zone and a second desorption zone. The second adsorption zone is adapted to adsorb the VOCs within the first adsorption-treated air. The incinerator is adapted to incinerate the VOCs within the first desorption-treated air. The present invention is characterized in that the first adsorption-treated air can be treated again by the second rotor, such that the VOCs concentration of the second adsorption-treated air can be significantly reduced. High processing efficiency can thus be achieved.
    Type: Grant
    Filed: January 13, 2018
    Date of Patent: March 31, 2020
    Assignee: JG ENVIRONMENTAL TECHNOLOGY CO., LTD.
    Inventor: Feng-Tang Chang
  • Patent number: 10391441
    Abstract: A rotor includes a hub, a frame, several processing elements and several plates. There are ribs and slots formed between the frame and the processing elements, in which the ribs are engaged with the slots. Therefore, the ribs provide axial support and thus enhance the structural strength of the processing elements. In addition, the processing elements may include two layers of fiber substrates with different structural strength, so that the rotor can meet the requirements of both the structural strength and the processing efficiency by the combination of different substrates. Furthermore, there can be a perforated plate disposed on the frame for the processing elements to abut thereagainst. The rotor can thus have enhanced structural strength.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: August 27, 2019
    Assignee: JG Environmental Technology Co., Ltd.
    Inventor: Feng-Tang Chang
  • Publication number: 20180221810
    Abstract: A serial-rotor type high efficiency purification system includes a first rotor, a second rotor and an incinerator. The first rotor has a first adsorption zone and a first desorption zone. The first adsorption zone is adapted to adsorb VOCs and expel a first adsorption-treated air. The first desorption zone is adapted for the VOCs to be desorbed and to expel a first desorption-treated air. The second rotor has a second adsorption zone and a second desorption zone. The second adsorption zone is adapted to adsorb the VOCs within the first adsorption-treated air. The incinerator is adapted to incinerate the VOCs within the first desorption-treated air. The present invention is characterized in that the first adsorption-treated air can be treated again by the second rotor, such that the VOCs concentration of the second adsorption-treated air can be significantly reduced. High processing efficiency can thus be achieved.
    Type: Application
    Filed: January 13, 2018
    Publication date: August 9, 2018
    Inventor: FENG-TANG CHANG
  • Publication number: 20180140992
    Abstract: A rotor includes a hub, a frame, several processing elements and several plates. There are ribs and slots formed between the frame and the processing elements, in which the ribs are engaged with the slots. Therefore, the ribs provide axial support and thus enhance the structural strength of the processing elements. In addition, the processing elements may include two layers of fiber substrates with different structural strength, so that the rotor can meet the requirements of both the structural strength and the processing efficiency by the combination of different substrates. Furthermore, there can be a perforated plate disposed on the frame for the processing elements to abut thereagainst. The rotor can thus have enhanced structural strength.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Inventor: Feng-Tang CHANG