Patents by Inventor Mei-Chin Chen

Mei-Chin 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: 20220093945
    Abstract: A dehydrogenation method for hydrogen storage materials, which is executed by a fuel cell system. The fuel cell system includes a hydrogen storage material tank, a heating unit, a fuel cell, a pump, a water thermal management unit and a heat recovery unit. The described dehydrogenation method utilizes the heating unit and the heat recovery unit to provide thermal energy to the hydrogen storage material tank, so that hydrogen storage material is heated to the dehydrogenation temperature. The pump extracts hydrogen from the hydrogen storage material tank, so that the hydrogen storage material is under negative pressure (i.e. H2 absolute pressure below 1 atm), according to which the hydrogen storage material is dehydrogenated, and the dehydrogenation efficiency and the amount of hydrogen release are improved. The method n can reduce the dehydrogenation temperature of the hydrogen storage material, and reduce the thermal energy consumption for heating the hydrogen storage material.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 24, 2022
    Inventors: Chia-Chieh SHEN, Shih-Hung CHAN, Fang-Bor WENG, Ho Chun CHEUNG, Yi-Hsuan LIN, Mei-Chin CHEN, Jyun-Wei CHEN, Ya-Che WU, Han-Wen LIU, Kuan-Lin CHEN, Jin-Xun ZHANG
  • Patent number: 10869832
    Abstract: A substance delivery device comprises a substrate, a plurality of dissolvable supporting structures and a plurality of carriers. The substrate attaches to a tissue. The dissolvable supporting structures are disposed on the substrate. The carriers are disposed on the dissolvable supporting structures and encapsulating substances. The present invention further provides a substance delivery method. The substance delivery device and the substance delivery method of present invention is advantageous for providing sustained release effect and rising the applicability of transdermal or transmucosal delivery techniques.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 22, 2020
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Mei-Chin Chen, Zih-Yao Lin, Chia-Sui Chen
  • Publication number: 20180289616
    Abstract: A substance delivery device comprises a substrate, a plurality of dissolvable supporting structures and a plurality of carriers. The substrate attaches to a tissue. The dissolvable supporting structures are disposed on the substrate. The carriers are disposed on the dissolvable supporting structures and encapsulating substances. The present invention further provides a substance delivery method. The substance delivery device and the substance delivery method of present invention is advantageous for providing sustained release effect and rising the applicability of transdermal or transmucosal delivery techniques.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 11, 2018
    Inventors: Mei-Chin Chen, Zih-Yao Lin, Chia-Sui Chen
  • Patent number: 10028905
    Abstract: A substance delivery device comprises a substrate, a plurality of dissolvable supporting structures and a plurality of carriers. The substrate attaches to a tissue. The dissolvable supporting structures are disposed on the substrate. The carriers are disposed on the dissolvable supporting structures and encapsulating substances. The present invention further provides a substance delivery method. The substance delivery device and the substance delivery method of present invention is advantageous for providing sustained release effect and rising the applicability of transdermal or transmucosal delivery techniques.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: July 24, 2018
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Mei-Chin Chen, Kuan-Ying Lai, Chun-Wei Lin, Ming-Hung Ling
  • Patent number: 9675789
    Abstract: An embeddable micro-needle patch for transdermal drug delivery and method of manufacturing the same are disclosed. The embeddable micro-needle patch for transdermal drug delivery comprises a supporting substrate, on which the surface includes a plurality of extruded supporting shafts; a biodegradable carrier, which is formed of biodegradable polymer material and disposed on the supporting shaft; and drugs, which are encapsulated in the biodegradable carrier. When the embeddable micro-needle patch for transdermal drug delivery is attached to the skin for a predetermined time, the biodegradable carrier is separated from the supporting shafts and embedded into the skin, and the biodegradable carrier may swell and then degrade, so as to release the drugs, which are encapsulated in the biodegradable carrier, at a rate of 1%-99% loaded drug per day into the skin. Accordingly, velocity of releasing the drugs may be regulated, so as to sustain the drug efficacy.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 13, 2017
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Mei-Chin Chen, Shih-Fang Huang
  • Patent number: 9269434
    Abstract: A resistive memory apparatus and a write-in method thereof are provided. The memory controller provides unselected bit-lines and unselected word-lines both not coupled to a selected resistive memory cell respectively with a first bit-line voltage and a first word-line voltage in one of a setting duration and a resetting duration, wherein the first bit-line voltage is equal to a product of a writing-in voltage VW and (n?1)/n and the first word-line voltage is equal to VW×1/n. The memory controller provides the unselected bit-lines not coupled to the selected resistive memory cell with a second bit-line voltage and the unselected word-lines not coupled to the selected resistive memory cell with a second word-line voltage in the other one of the setting duration and the resetting duration, wherein the second bit-line voltage is equal to VW×1/n and the second word-line voltage is equal to VW×(n?1)/n.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: February 23, 2016
    Assignee: Winbond Electronics Corp.
    Inventors: Tuo-Hung Hou, Chung-Wei Hsu, Mei-Chin Chen
  • Publication number: 20150146473
    Abstract: A resistive memory apparatus and a write-in method thereof are provided. The memory controller provides unselected bit-lines and unselected word-lines both not coupled to a selected resistive memory cell respectively with a first bit-line voltage and a first word-line voltage in one of a setting duration and a resetting duration, wherein the first bit-line voltage is equal to a product of a writing-in voltage VW and (n?1)/n and the first word-line voltage is equal to VW×1/n. The memory controller provides the unselected bit-lines not coupled to the selected resistive memory cell with a second bit-line voltage and the unselected word-lines not coupled to the selected resistive memory cell with a second word-line voltage in the other one of the setting duration and the resetting duration, wherein the second bit-line voltage is equal to VW×1/n and the second word-line voltage is equal to VW×(n?1)/n.
    Type: Application
    Filed: March 11, 2014
    Publication date: May 28, 2015
    Applicant: Winbond Electronics Corp.
    Inventors: Tuo-Hung Hou, Chung-Wei Hsu, Mei-Chin Chen
  • Publication number: 20150018755
    Abstract: A substance delivery device comprises a substrate, a plurality of dissolvable supporting structures and a plurality of carriers. The substrate attaches to a tissue. The dissolvable supporting structures are disposed on the substrate. The carriers are disposed on the dissolvable supporting structures and encapsulating substances. The present invention further provides a substance delivery method. The substance delivery device and the substance delivery method of present invention is advantageous for providing sustained release effect and rising the applicability of transdermal or transmucosal delivery techniques.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 15, 2015
    Inventors: Mei-Chin CHEN, Kuan-Ying LAI, Chun-Wei LIN, Ming-Hung LING
  • Patent number: 8834447
    Abstract: A transdermal drug delivery patch and a method of controlling the drug release of the transdermal drug delivery patch by near-IR are disclosed. The transdermal drug delivery patch comprises a substrate, carriers and drugs. The drugs are encapsulated in the carriers, and the carriers having the drugs are disposed on a surface of the substrate. The carriers are formed of biodegradable polymers, and nano-particles with a photothermal conversion effect are loaded in the carrier. When the carriers are punctured into the skin and the nano-particles in the carrier absorb the near-IR, the near-IR is converted into heat by the nano-particles to melt the carrier and thus releasing the drugs encapsulated in the carrier into the skin. Accordingly, the speed of releasing the drugs encapsulated in the carrier can be controlled accurately by the near-IR.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 16, 2014
    Assignee: National Cheng Kung University
    Inventors: Mei-Chin Chen, Dong-Hwang Chen, Kuan-Wen Wang, Bo-Hung Lai
  • Publication number: 20140005606
    Abstract: An embeddable micro-needle patch for transdermal drug delivery and method of manufacturing the same are disclosed. The embeddable micro-needle patch for transdermal drug delivery comprises a supporting substrate, on which the surface includes a plurality of extruded supporting shafts; a biodegradable carrier, which is formed of biodegradable polymer material and disposed on the supporting shaft; and drugs, which are encapsulated in the biodegradable carrier. When the embeddable micro-needle patch for transdermal drug delivery is attached to the skin for a predetermined time, the biodegradable carrier is separated from the supporting shafts and embedded into the skin, and the biodegradable carrier may swell and then degrade, so as to release the drugs, which are encapsulated in the biodegradable carrier, at a rate of 1%˜99% loaded drug per day into the skin. Accordingly, velocity of releasing the drugs may be regulated, so as to sustain the drug efficacy.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 2, 2014
    Inventors: Mei-Chin CHEN, Shih-Fang HUANG
  • Publication number: 20120283695
    Abstract: A transdermal drug delivery patch and a method of controlling the drug release of the transdermal drug delivery patch by near-IR are disclosed. The transdermal drug delivery patch comprises a substrate, carriers and drugs. The drugs are encapsulated in the carriers, and the carriers having the drugs are disposed on a surface of the substrate. The carriers are formed of biodegradable polymers, and nano-particles with a photothermal conversion effect are loaded in the carrier. When the carriers are punctured into the skin and the nano-particles in the carrier absorb the near-IR, the near-IR is converted into heat by the nano-particles to melt the carrier and thus releasing the drugs encapsulated in the carrier into the skin. Accordingly, the speed of releasing the drugs encapsulated in the carrier can be controlled accurately by the near-IR.
    Type: Application
    Filed: August 23, 2011
    Publication date: November 8, 2012
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: MEI-CHIN CHEN, DONG-HWANG CHEN, KUAN-WEN WANG, BO-HUNG LAI
  • Patent number: 8137697
    Abstract: The invention discloses the biodegradable nanoparticle for use in nanoparticle projectile bombardment as a carrier for administering nucleic acid, DNA, RNA or siRNAs transdermally to an animal subject. The nanoparticles are composed of positively charged chitosan substrate and the nucleic acid encapsulated within the nanoparticles or electrostatically loaded on the exterior surface of the nanoparticles.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: March 20, 2012
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Po-Wei Lee, Hosheng Tu
  • Patent number: 7985426
    Abstract: The invention discloses a system, method and pharmaceutical composition of nanoparticles for lodging in a target tissue cell in situ of an animal subject, the nanoparticles comprising PGA-PLA block copolymers that are conjugated with a ligand, wherein the ligand has ligand-receptor binding affinity for the ligand to bind a surface receptor of the tissue cell.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: July 26, 2011
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Hosheng Tu
  • Patent number: 7919293
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one protein drug or bioactive agent characterized with a positive surface charge and their enhanced permeability for paracellular protein drug and bioactive agent delivery.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: April 5, 2011
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Yu-Hsin Lin, Hsiang-Fa Liang, Hosheng Tu
  • Patent number: 7901711
    Abstract: The invention discloses the biodegradable nanoparticle for use in nanoparticle projectile bombardment as a carrier for administering proteins, peptides or siRNAs transdermally to an animal subject. The nanoparticles are composed of positively charged chitosan substrate, negatively charged core substrate complexed with chitosan, and encapsulated bioactive agents.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: March 8, 2011
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Po-Wei Lee, Hosheng Tu
  • Patent number: 7879361
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one bioactive agent of HMG-CoA reductase inhibitors or erythropoietin. The nanoparticles are characterized with a positive surface charge and their enhanced permeability for paracellular drug delivery.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: February 1, 2011
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Yu-Hsin Lin, Mei-Chin Chen, Hosheng Tu
  • Patent number: 7858596
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one protein drug or bioactive agent characterized with a positive surface charge and their enhanced permeability for paracellular protein drug and bioactive agent delivery.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: December 28, 2010
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Yu-Hsin Lin, Hsiang-Fa Liang, Hosheng Tu
  • Publication number: 20090202628
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one protein drug or bioactive agent characterized with a positive surface charge and their enhanced permeability for paracellular protein drug and bioactive agent delivery.
    Type: Application
    Filed: March 6, 2009
    Publication date: August 13, 2009
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Yu-Hsin Lin, Hsiang-Fa Liang, Hosheng Tu
  • Publication number: 20090142405
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one protein drug or bioactive agent characterized with a positive surface charge and their enhanced permeability for paracellular protein drug and bioactive agent delivery.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 4, 2009
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Yu-Hsin Lin, Hsiang-Fa Liang, Hosheng Tu
  • Patent number: 7541046
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one protein drug or bioactive agent characterized with a positive surface charge and their enhanced permeability for paracellular protein drug and bioactive agent delivery.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: June 2, 2009
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Mei-Chin Chen, Yu-Hsin Lin, Hsiang-Fa Liang, Hosheng Tu