Patents by Inventor Chien-Chang Wu

Chien-Chang Wu 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: 20230185051
    Abstract: An imaging lens module has an optical axis, an object side and an image side. The imaging lens module includes a plastic barrel, an optical lens assembly, an image-side assembled element and a light blocking element assembly. The plastic barrel includes a first contacting surface, which is close to an image-side end of the plastic barrel. The image-side assembled element is disposed close to the image-side end of the plastic barrel. The image-side assembled element is in a tube shape and extends from the object side to the image side. The image-side assembled element includes a second contacting surface and an inner protruding portion, and the second contacting surface is disposed close to an object-side end of the image-side assembled element and correspondingly to the first contacting surface. The plastic barrel and the image-side assembled element contact each other via the first contacting surface and the second contacting surface.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Chien-Hsun WU, Lin-An CHANG, Ming-Ta CHOU
  • Patent number: 10930959
    Abstract: A fuel cell system includes a comparator, a signal tracking controller, a first load distribution controller, a first loop gain controller, a first adder, a first PWM controller, a first fuel cell and power converter, a second load distribution controller, a second loop gain controller, a second adder, a second PWM controller, and a second fuel cell and power converter. According to the proposed fuel cell parallel system, each fuel cell connected in parallel can have a different output voltage, but the voltage at the load side can be maintained. In addition, the power output ratio of each fuel cell can be controlled under the nominal load conditions and the load varied.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 23, 2021
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Tsung-Lin Chen, Chien-Chang Wu
  • Publication number: 20180351186
    Abstract: A fuel cell system includes a comparator, a signal tracking controller, a first load distribution controller, a first loop gain controller, a first adder, a first PWM controller, a first fuel cell and power converter, a second load distribution controller, a second loop gain controller, a second adder, a second PWM controller, and a second fuel cell and power converter. According to the fuel cell system, each fuel cell connected in parallel can have a different output voltage, and the output power of each fuel cell can be controlled, so that the voltage at the load side can be maintained and the power output ratio of each fuel cell can be controlled under the load varied.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 6, 2018
    Inventors: Tsung-Lin CHEN, Chien-Chang WU
  • Patent number: 9269970
    Abstract: The present invention provides a fuel cell system, and the fuel cell system comprises a fuel cell, an after burner, a heat exchanger and a reformer. The after burner connects with the fuel cell to receive rest-bar of the fuel cell and produce a gas with high temperature. The heat exchanger comprises a first heat exchanging unit and a second heat exchanging unit connected with the first heat exchanging unit, and the second heat exchanging unit connects with a fuel input pipe for receiving the fuel. The reformer connects with the after burner, the first heat exchanging unit and the second heat exchanging unit separately.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: February 23, 2016
    Assignee: National Chiao Tung University
    Inventors: Tsung-Lin Chen, Chien-Chang Wu
  • Patent number: 9144590
    Abstract: Disclosed herein is the use of an extract from an Aster species for the preparation of a medicament for the treatment of opioid-induced constipation. The extract is extracted from fresh and/or dried roots and rhizomes of a Tatarian aster (Aster tartaricus) plant, in which the extraction uses water or 40-95% (v/v) ethanol as an extractant to obtain an extraction mixture. In some embodiments, the extraction mixture is then eluted with water followed by at least one eluent.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: September 29, 2015
    Assignee: Medical and Pharmaceutical Industry Technology and Development Center
    Inventors: Jui-Ching Chen, Che-Yi Lin, Chien-Chang Wu, Cheng-Po Huang, Yuan-Ling Ku, Yueh-Chu Chen, Yu-Hsuan Lin, Chih-Sheng Hung
  • Publication number: 20150224159
    Abstract: Disclosed is an extract of Perilla frutescens seeds that contains rosmarinic acid, luteolin, and apigenin, the weight ratio between rosmarinic acid, luteolin, and apigenin being 0.1-200:0.1-200:1. Also disclosed is a method for treating a psychiatric disorder using the above-described extract or an extract of Perilla frutescens seeds containing at least an active agent selected from the group consisting of rosmarinic acid, luteolin, and apigenin.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 13, 2015
    Inventors: Leah Lo, Win-Chin Chiang, Jui-Ching Chen, Yu-Min Lin, Chien-Chang Wu, Che-Yi Lin, Chien-Jen Shih, Yu-Hsuan Lin, Tzu-Chun Chen, Yu-Hsiang Huang
  • Publication number: 20140178781
    Abstract: The present invention provides a fuel cell system, and the fuel cell system comprises a fuel cell, an after burner, a heat exchanger and a reformer. The after burner connects with the fuel cell to receive rest-bar of the fuel cell and produce a gas with high temperature. The heat exchanger comprises a first heat exchanging unit and a second heat exchanging unit connected with the first heat exchanging unit, and the second heat exchanging unit connects with a fuel input pipe for receiving the fuel. The reformer connects with the after burner, the first heat exchanging unit and the second heat exchanging unit separately.
    Type: Application
    Filed: June 7, 2013
    Publication date: June 26, 2014
    Inventors: Tsung-Lin CHEN, Chien-Chang WU
  • Publication number: 20120164251
    Abstract: Disclosed herein is the use of an extract from an Aster species for the preparation of a medicament for the treatment of opioid-induced constipation. The extract is extracted from fresh and/or dried roots and rhizomes of a Tatarian aster (Aster tartaricus) plant, in which the extraction uses water or 40-95% (v/v) ethanol as an extractant to obtain an extraction mixture. In some embodiments, the extraction mixture is then eluted with water followed by at least one eluent.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Inventors: Jui-Ching CHEN, Che-Yi Lin, Chien-Chang Wu, Cheng-Po Huang, Yuan-Ling Ku, Yueh-Chu Chen, Yu-Hsuan Lin, Chih-Sheng Hung
  • Publication number: 20060171273
    Abstract: A method for compensating frequency response of an actuator in an optical disc drive is provided. The present invention utilizes the temperature sensor within the optical pick-up head to sense work temperature. When the work temperature rises to a presetting threshold value, the servo system will induce the appropriated equalizer to compensate the frequency response of the actuator according to this work temperature, such that the servo controlling of the optical disc drive can operate accurately both in the high temperature condition and in the low temperature condition.
    Type: Application
    Filed: January 26, 2006
    Publication date: August 3, 2006
    Inventors: Chang-Der Liu, Chih-Chang Cheu, Chun-Cheng Chang, Chung-Ming Chen, Chien-Chang Wu
  • Publication number: 20060120230
    Abstract: In a writing control method of an optical recording/reproducing apparatus, a data-writing operation is performed at a rotating speed. Meanwhile, an error signal is generated in response to a wobble signal. The error signal is periodically sampled. A counting value is obtained by accumulatively counting whenever the level of the error signal exceeds a threshold. The subsequent data-writing operation is performed at an increased rotating speed when the accumulatively counting value obtained within a preset period of time is no greater than a first preset value. The error signal can be a tracking error signal and/or a focusing error signal.
    Type: Application
    Filed: December 5, 2005
    Publication date: June 8, 2006
    Inventors: Song-Ruei Chen, Rong-Son Jeng, Chien-Chang Wu, Yen-Chun Lin, Ren-Te Lin
  • Publication number: 20060021830
    Abstract: A cable-type actuator assembly for a cycling exerciser having a cable operated resistance adjustment mechanism and a cable operated braking system. The actuator assembly includes a caliper actuation cable operably connected to a caliper that acts on a wheel of the cycling exerciser. An actuator is mounted to the frame of the exerciser, and retains the distal ends of a brake cable and a resistance adjustment cable and is connected to a forward end of the caliper actuation cable. Actuation of either the brake cable or resistance adjustment cable moves the actuator, thereby actuating the caliper actuation cable.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Todd Lassanske, You-Chun Chu, Chien-Chang Wu