Patents by Inventor Chao-Chang A. Chen

Chao-Chang A. Chen 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: 20210146587
    Abstract: A method of manufacturing an optical component having micro-structures is described. The method detects a crystallization temperature within a crystallization temperature interval for fully filling the molding material into a mold cavity to rapidly produce the optical element having a micro-structure with a large area.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chao-Chang CHEN, Cheng-Fan YU, Chang-Shun LAI, Chien-Yu HOU
  • Publication number: 20210046606
    Abstract: A method for repairing a polishing pad in real time includes a trimming step, a detection step, and a reconstruction and analysis step. A surface morphology of the polishing pad is reconstructed through detection, and analysis is performed according to the reconstruction, to ensure that a surface of the polishing pad can recover its function after the surface of the polishing pad is trimmed, so that the polishing pad can be used effectively to reduce costs.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Applicant: Ta Liang Technology Co., Ltd.
    Inventors: Chao-Chang Chen, Jian-Shian Lin, Chun-Chen Chen, Jen-Chien Li, Hsien-Ming Lee, Ching-Tang Hsueh
  • Patent number: 10274750
    Abstract: A progressive multifocal contact lens and producing method thereof are provided. The progressive multifocal contact lens includes a first optical region of a front optical surface and a second optical region of a back optical surface. The first optical region includes a center zone, an outer zone and an intermediate zone connected between the center zone and outer zone where the center zone and outer zone are selected from a distance vision power and a near vision power and the intermediate zone is configured to adjust the optical power of the distance vision power and the near vision power so that the optical power or add power of the first optical region on the front optical surface forms a normal cumulative distribution function.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 30, 2019
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Thi-Lien Vu, Chao-Chang Chen, Yu-Ting Qiu
  • Patent number: 10155332
    Abstract: An in-mold vibratile injection compression molding method and molding apparatus thereof are described. While performing a filling stage, a first piezoelectric actuator and a second piezoelectric actuator are use to vibrate the molding material along at least two directions for precisely filling the molding material into the micro-structure by adjusting the filling flow velocity of the molding material associated with the proper molding material temperature and by maintaining a molding material temperature of a skin solidified layer in the cavity between a glass transition temperature and a melting temperature in order to avoid the form error, to increase the groove filling rate and to improve the residual stress.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: December 18, 2018
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chao-Chang Chen, Feng-Chi Lee, Kun-Lin Wang, Ching-Hsien Yeh
  • Publication number: 20180194092
    Abstract: A method of manufacturing an optical component having micro-structures is described. The method detects a crystallization temperature within a crystallization temperature interval for fully filling the molding material into a mold cavity to rapidly produce the optical element having a micro-structure with a large area.
    Type: Application
    Filed: October 31, 2017
    Publication date: July 12, 2018
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chao-Chang Chen, Cheng-Fan Yu, Chang-Shun Lai, Chien-Yu Hou
  • Publication number: 20180024380
    Abstract: A progressive multifocal contact lens and producing method thereof are provided. The progressive multifocal contact lens includes a first optical region of a front optical surface and a second optical region of a back optical surface. The first optical region includes a center zone, an outer zone and an intermediate zone connected between the center zone and outer zone where the center zone and outer zone are selected from a distance vision power and a near vision power and the intermediate zone is configured to adjust the optical power of the distance vision power and the near vision power so that the optical power or add power of the first optical region on the front optical surface forms a normal cumulative distribution function.
    Type: Application
    Filed: February 15, 2017
    Publication date: January 25, 2018
    Inventors: THI-LIEN VU, CHAO-CHANG CHEN, YU-TING QIU
  • Patent number: 9375821
    Abstract: A novel polishing pad is described. The polishing pad includes a base plate, a main polishing body, a plurality of metal bottom portions, a positive electrode conductive wire and a negative electrode conductive wire. The main polishing body made from a non-conductive material and disposed on the base plate includes a plurality of cavities thereon. The metal bottom portions are disposed in the cavities with each of the cavities having one of the metal bottom portions therein. The positive electrode conductive wire electrically is connected to a positive electrode of a power supply. The negative electrode conductive wire electrically is connected to a negative electrode of the power supply. The positive electrode conductive wire and the negative electrode conductive wire alternatively pass through the base plate and connect to the metal bottom portions respectively.
    Type: Grant
    Filed: May 27, 2012
    Date of Patent: June 28, 2016
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chao-Chang Chen, Chi Hsiang Hsieh
  • Publication number: 20150336316
    Abstract: An in-mold vibratile injection compression molding method and molding apparatus thereof are described. While performing a filling stage, a first piezoelectric actuator and a second piezoelectric actuator are use to vibrate the molding material along at least two directions for precisely filling the molding material into the micro-structure by adjusting the filling flow velocity of the molding material associated with the proper molding material temperature and by maintaining a molding material temperature of a skin solidified layer in the cavity between a glass transition temperature and a melting temperature in order to avoid the form error, to increase the groove filling rate and to improve the residual stress.
    Type: Application
    Filed: July 9, 2015
    Publication date: November 26, 2015
    Inventors: Chao-Chang CHEN, Feng-Chi LEE, Kun-Lin WANG, Ching-Hsien YEH
  • Patent number: 9193032
    Abstract: A supplying system of adding gas into the polishing slurry and method thereof are described. The supplying system includes a slurry container, a gas-mixed container, an adjusting device, a first flow controller, and a second flow controller. The supplying system utilizes the adjusting device to mix the polishing slurry with gas for forming the gas-mixed polishing slurry. The supplying system of adding the gas into the polishing slurry and method thereof are capable of increasing the material removal rate of the surface of the substrate in order to improve the processing quality of the substrate.
    Type: Grant
    Filed: April 13, 2014
    Date of Patent: November 24, 2015
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chao-Chang Chen, Ping-Shen Chou, Wei-Kang Tu
  • Publication number: 20140308880
    Abstract: A supplying system of adding gas into the polishing slurry and method thereof are described. The supplying system includes a slurry container, a gas-mixed container, an adjusting device, a first flow controller, and a second flow controller. The supplying system utilizes the adjusting device to mix the polishing slurry with gas for forming the gas-mixed polishing slurry. The supplying system of adding the gas into the polishing slurry and method thereof are capable of increasing the material removal rate of the surface of the substrate in order to improve the processing quality of the substrate.
    Type: Application
    Filed: April 13, 2014
    Publication date: October 16, 2014
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chao-Chang CHEN, Ping-Shen CHOU, Wei-Kang TU
  • Publication number: 20130147077
    Abstract: An in-mold vibratile injection compression molding method and molding apparatus thereof are described. While performing a filling stage, a first piezoelectric actuator and a second piezoelectric actuator are use to vibrate the molding material along at least two directions for precisely filling the molding material into the micro-structure in order to avoid the form error, to increase the groove filling rate and to improve the residual stress.
    Type: Application
    Filed: June 10, 2012
    Publication date: June 13, 2013
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chao-Chang Chen, Feng-Chi Lee, Chih-hao Wang, Ching-Hsien Yeh
  • Publication number: 20130137263
    Abstract: A novel polishing pad is described. The polishing pad includes a base plate, a main polishing body, a plurality of metal bottom portions, a positive electrode conductive wire and a negative electrode conductive wire. The main polishing body made from a non-conductive material and disposed on the base plate includes a plurality of cavities thereon. The metal bottom portions are disposed in the cavities with each of the cavities having one of the metal bottom portions therein. The positive electrode conductive wire electrically is connected to a positive electrode of a power supply. The negative electrode conductive wire electrically is connected to a negative electrode of the power supply. The positive electrode conductive wire and the negative electrode conductive wire alternatively pass through the base plate and connect to the metal bottom portions respectively.
    Type: Application
    Filed: May 27, 2012
    Publication date: May 30, 2013
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chao-Chang Chen, Chi Hsiang Hsieh
  • Patent number: 8172906
    Abstract: An artificial joint fixation mechanism has a base for being attached to an artificial joint, a stem for guiding an artificial joint to engage with a human bone, and a sleeve. The base defines a conic shaft hole therethrough. At least a positioning section and at least a threaded section are extended adjacent an end of the shaft hole. The stem includes an engaging pole at an end thereof for jointing to an artificial joint. The sleeve is threaded for screwing to the threaded section and defines an inner cone hole therethrough. In use, the engaging pole of the stem implants into the shaft hole. The sleeve is screwed to the threaded section, and the inner cone hole reversely pressing against the guiding section. Thus the stem is pressed reliably.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: May 8, 2012
    Assignee: United Orthopedic Corporation
    Inventors: Rong-Sen Yang, Chao-Chang A. Chen, Chen-Yu Lung, Cheng-Kuang Lu
  • Patent number: 7965442
    Abstract: A combined retardation optical device includes a first retardation optical plate and a second retardation optical plate. The second retardation optical plate contains a flat portion and a multi-step portion. This multi-step portion has several step-like flat surfaces with predetermined heights. The flat portion contacts with the first retardation optical plate. Both the first retardation optical device and the second retardation optical plate are made from birefringent materials. This invention is easy to switch to a different retardation condition for observation. Plus, there is no need to adjust or replace any element.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: June 21, 2011
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chao-Chang Chen, Jr-Rung Chen
  • Publication number: 20090190217
    Abstract: A combined retardation optical device includes a first retardation optical plate and a second retardation optical plate. The second retardation optical plate contains a flat portion and a multi-step portion. This multi-step portion has several step-like flat surfaces with predetermined heights. The flat portion contacts with the first retardation optical plate. Both the first retardation optical device and the second retardation optical plate are made by birefringent materials. This invention is easy to switch to different retardation condition for observation. Plus, there is no need to adjust or replace any element.
    Type: Application
    Filed: June 9, 2008
    Publication date: July 30, 2009
    Inventors: Chao-Chang Chen, Jr-Rung Chen
  • Publication number: 20090036028
    Abstract: A chemical mechanical polishing apparatus and a chemical mechanical polishing method thereof are provided. The chemical mechanical polishing method at least includes the following steps. In step a, a positive pressure is formed between a polishing pad and a wafer. In step b, the wafer is driven to revolve around a first central axis. In step c, a polishing slurry is injected between the polishing pad and the wafer. In step d, the positive pressure formed on the wafer by the polishing pad is adjusted for change the contacting modes of the polishing pad and the wafer as well as the wafer removal rate.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 5, 2009
    Applicant: National Taiwan University of Science and Technology
    Inventors: Chao-Chang Chen, Li-Sheng Hsu
  • Publication number: 20070290050
    Abstract: A memory card includes a first end and a second end. The first end of the memory card is sized to couple with a coupling opening of a USB socket. A USB interface and a read/write interface are provided on the first end of the memory card. The USB interface includes a plurality of first contacts. The read/write interface includes a plurality of second contacts that are aligned with the first contacts. The first contacts and the second contacts are alternately disposed. The memory card can be inserted into an adaptor so as to be converted into another memory card of another type.
    Type: Application
    Filed: August 3, 2006
    Publication date: December 20, 2007
    Inventor: Chao-Chang Chen
  • Publication number: 20070288020
    Abstract: A soft tissue fixation device for organs proximate shankbone includes a fixing body, a fixing plate, and a plurality of fixing components for attaching the fixing plate to the fixing body. The fixing body forms an arcuate bound portion on a side thereof. A plurality of engaging holes is defined in a surface of the bound portion. The fixing plate is arcuate and defines at least a positioning hole substantially in a center thereof for passing a suture through, and fixing holes respectively adjacent both sides thereof for corresponding to the engaging holes. The suture and ligament are positioned reliably with respect to the fixing body. The fixing plate is adjustable in height and orientation.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 13, 2007
    Inventors: Rong-Sen Yang, Chao-Chang A. Chen, Chen-Yu Lung, Cheng-Kuang Lu
  • Publication number: 20070267505
    Abstract: A composite interface memory card includes a first end and a second end. The first end of the memory card includes a USB interface with a plurality of contacts for coupling with a USB socket. The second end of the memory card includes a read/write interface with a plurality of contacts. The first end of the memory card has a thickness greater than that of the second end of the memory card. The second end of the memory card has a width larger than two thirds of a width of the first end of the memory card and smaller than one and two thirds times the width of the first end of the memory card. The composite memory card can be inserted into an adaptor so as to be converted into another memory card of another type.
    Type: Application
    Filed: June 29, 2006
    Publication date: November 22, 2007
    Inventor: Chao-Chang Chen
  • Publication number: 20070244567
    Abstract: An artificial joint fixation mechanism has a base for being attached to an artificial joint, a stem for guiding an artificial joint to engage with a human bone, and a sleeve. The base defines a conic shaft hole therethrough. At least a positioning section and at least a threaded section are extended adjacent an end of the shaft hole. The stem includes an engaging pole at an end thereof for jointing to an artificial joint. The sleeve is threaded for screwing to the threaded section and defines an inner cone hole therethrough. In use, the engaging pole of the stem implants into the shaft hole. The sleeve is screwed to the threaded section, and the inner cone hole reversely pressing against the guiding section. Thus the stem is pressed reliably.
    Type: Application
    Filed: April 14, 2006
    Publication date: October 18, 2007
    Inventors: Rong-Sen Yang, Chao-Chang Chen, Chen-Yu Lung, Cheng-Kuang Lu