Patents by Inventor Yi-Yuan Chang

Yi-Yuan 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: 20250028143
    Abstract: A driving mechanism for moving an optical element is provided, including a fixed part, a movable part, a driving assembly, and a first guiding member connected between the fixed part and the movable part. The optical element is disposed on the movable part, and the driving assembly drives the movable part to move relative to the fixed part. The first guiding member is configured for guiding the movable part to move relative to the fixed part.
    Type: Application
    Filed: July 10, 2024
    Publication date: January 23, 2025
    Inventors: Po-Xiang ZHUANG, Yi-Fan LEE, Chao-Yuan CHANG, Wei-Jhe SHEN, Sin-Jhong SONG, Kun-Shih LIN, Yi-Ho CHEN, Chao-Chang HU
  • Patent number: 12202752
    Abstract: A method is provided for processing wastewater having organics even together with high-concentration ammonia-nitrogen, using an apparatus, comprising a catalyzation tank and a subsequent neutralization tank. Organic ammonia-nitrogen wastewater is introduced into tank for reaction without being pre-adjusted by acidic agent or mixing with other additives. A persulfate oxidant is used to process high-efficiency oxidative degradation for ammonia-nitrogen and toxic organics in wastewater through catalyzing oxidation of ultraviolet activation, tiny-amount-transition-metal catalyzation, or both of them, for simultaneous reductions or complete removals of ammonia-nitrogen and organic carbon contents. After neutralization according to actual needs, the final output is complied with biological treatment conditions, discharged-water quality standards, or recycled-water standards.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: January 21, 2025
    Assignee: CPC Corporation, Taiwan
    Inventors: Yi-Fong Huang, Shih-Yuen Chang, I-Cheng Chou, Mao-Yuan Tu, Guo-Hsu Lu
  • Patent number: 9095329
    Abstract: An electromagnetic thermotherapeutic apparatus includes: a plurality of needle units respectively having head portions and needle portions; a base unit having a base plate that is formed with a plurality of first through holes, and a base pad that is formed with a plurality of second through holes, the needle portions of the needle units removably extending through the second and first through holes, the head portions of the needle units abutting against the base pad; a temperature monitor disposed between the base plate and the base pad; an upper unit disposed above the base pad and abutting against the head portions; and a clamp unit clamping and pressing the base unit against the upper unit.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: August 4, 2015
    Assignee: National Cheng Kung University
    Inventors: Gwo-Bin Lee, Xi-Zhang Lin, Sheng-Chieh Huang, Yi-Yuan Chang, Yan-Shen Shan, Sheng-Jye Hwang, Tung-Jen Lee, Szu-Yin Chen, Ping-Hen Chen
  • Publication number: 20120209053
    Abstract: An electromagnetic thermotherapeutic apparatus includes: a plurality of needle units respectively having head portions and needle portions; a base unit having a base plate that is formed with a plurality of first through holes, and a base pad that is formed with a plurality of second through holes, the needle portions of the needle units removably extending through the second and first through holes, the head portions of the needle units abutting against the base pad; a temperature monitor disposed between the base plate and the base pad; an upper unit disposed above the base pad and abutting against the head portions; and a clamp unit clamping and pressing the base unit against the upper unit.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 16, 2012
    Applicant: National Cheng Kung University
    Inventors: Gwo-Bin Lee, Xi-Zhang Lin, Sheng-Chieh Huang, Yi-Yuan Chang, Yan-Shen Shan, Sheng-Jye Hwang, Tung-Jen Lee, Szu-Yin Chen, Ping-Hen Chen
  • Publication number: 20120157749
    Abstract: A heat therapy for thermally treating a target tissue within a living body by using a treating apparatus including a treating device with a magnetic part is provided. The magnetic part is heated to a first temperature by a high frequency electromagnetic field with a heating rate ranging from 1 to 5° C./sec, wherein the magnetic part is contacted the target tissue. Temperature controlling steps are performed to the magnetic part having the first temperature, and therefore the magnetic part has a final temperature higher than the first temperature, and a treatment is performed to the target tissue under the final temperature. Each of the temperature controlling steps is a heating step, a cooling step or a temperature conservation step, and the magnetic part is heated or cooled by the high frequency electromagnetic field with a heating rate or a cooling rate ranging from 1 to 5° C./sec.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Gwo-Bin Lee, Xi-Zhang Lin, Sheng-Chieh Huang, Yi-Yuan Chang, Chiung-Yu Chen, Yan-Shen Shan
  • Publication number: 20120022515
    Abstract: A hemostatic applicator adapted to stop a bleeding site from bleeding is provided. The hemostatic applicator includes a magnetic part, an anti-adhesion layer and a non-magnetic part. The magnetic part is suitable to be heated to a temperature with a high frequency electromagnetic field. The anti-adhesion layer is formed on a surface of the magnetic part, and the magnetic part contacts the bleeding site through the anti-adhesion layer. The non-magnetic part is connected with the magnetic part. A hemostatic module is also provided.
    Type: Application
    Filed: September 27, 2010
    Publication date: January 26, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Gwo-Bin Lee, Xi-Zhang Lin, Chong-Jeh Lo, Sheng-Chieh Huang, Yi-Yuan Chang
  • Publication number: 20110054455
    Abstract: An electromagnetic thermotherapeutic apparatus includes a tubular needle and an inner needle. The tubular needle has an electromagnetic inductive portion that is made from a material capable of generating heat when subjected to an induction magnetic field, and that has a hollow tip, and a non-electromagnetic inductive portion that is connected to the electromagnetic inductive portion oppositely of the hollow tip. The inner needle is removably insertable into the tubular needle from the non-electromagnetic inductive portion to the hollow tip.
    Type: Application
    Filed: July 13, 2010
    Publication date: March 3, 2011
    Inventors: Gwo-Bin Lee, Xi-Zhang Lin, Sheng-Chieh Huang, Yi-Yuan Chang