Patents by Inventor Po-Jen Chu

Po-Jen Chu 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: 20160276688
    Abstract: An ion-exchange membrane with a preferentially oriented morphological texture is provided. The ion-exchange membrane includes a polymeric substrate; and nanoparticles embedded in the polymeric substrate. The relative amount of the nanoparticles is from 0.1 to 5 wt %, based on the total weight of the ion-exchange membrane, and the value of ion agglomeration is less than 3.4 nm. The ion-exchange membrane of the present invention shows superior ion-conducting behavior.
    Type: Application
    Filed: October 2, 2015
    Publication date: September 22, 2016
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Po-Jen Chu, Yu-Cheng Tseng
  • Patent number: 8273679
    Abstract: A porous catalyst includes at least one noble nano-metal particle, an oxide for forming porous structures, and a carrier material for supporting the oxide and the at least one noble nano-metal particle. The porous catalyst shows a large electrochemical surface area and a highly conductive ability. Further, the noble nano-metal particles are separated on the oxides uniformly, and the oxide of the catalyst forms a porous structure to provide a large electrochemical surface area. The porous catalyst provides excellent proton/electron transfer ability and increases the reaction rate.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 25, 2012
    Assignee: National Central University
    Inventors: Po-Jen Chu, Jhuh-Wei Yang, Chieh-Chun Chang, Huang-Yu Lee
  • Publication number: 20120077672
    Abstract: A porous catalyst includes at least one noble nano-metal particle, an oxide for forming porous structures, and a carrier material for supporting the oxide and the at least one noble nano-metal particle. The porous catalyst shows a large electrochemical surface area and a highly conductive ability. Further, the noble nano-metal particles are separated on the oxides uniformly, and the oxide of the catalyst forms a porous structure to provide a large electrochemical surface area. The porous catalyst provides excellent proton/electron transfer ability and increases the reaction rate.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Inventors: Po-Jen Chu, Jhih-Wei Yang, Chieh-Chun Chang, Huang-Yu Lee
  • Patent number: 8088447
    Abstract: A series of crosslinkable sulfonated poly(ether ketone)s containing cycloalkenyl groups were synthesized by aromatic nucleophilic substitution reaction. To decrease the swelling of fuel cell membranes, crosslinking of theses polymers by radical polymerization has been explored. These polymeric films exhibit good thermal and oxidative stability, and good dimensional stability in hot water. The proton conductivity of one example at room temperature is 7.52*10?2 S/cm. The results showed that these materials containing cycloalkenyl groups are possible inexpensive candidate materials for proton exchange membranes in fuel cell applications.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: January 3, 2012
    Assignees: Industrial Technology Research Institute, National Central University
    Inventors: Chung-Liang Chang, Ming-Chou Chen, Ko-Lun Hsu, Hsing-Chieh Li, Chi-Han Hsieh, Peter Po-Jen Chu
  • Publication number: 20100166966
    Abstract: A series of crosslinkable sulfonated poly(ether ketone)s containing cycloalkenyl groups were synthesized by aromatic nucleophilic substitution reaction. To decrease the swelling of fuel cell membranes, crosslinking of theses polymers by radical polymerization has been explored. These polymeric films exhibit good thermal and oxidative stability, and good dimensional stability in hot water. The proton conductivity of one example at room temperature is 7.52*10?2 S/cm. The results showed that these materials containing cycloalkenyl groups are possible inexpensive candidate materials for proton exchange membranes in fuel cell applications.
    Type: Application
    Filed: June 2, 2009
    Publication date: July 1, 2010
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL CENTRAL UNIVERSITY
    Inventors: Chung-Liang Chang, Ming-Chou Chen, Ko-Lun Hsu, Hsing-Chieh Li, Chi-Han Hsieh, Peter Po-Jen Chu
  • Publication number: 20080280067
    Abstract: A method of forming a carbon film on a metal substrate at a low temperature has steps of preparing a metal substrate having a softening temperature; forming a catalytic layer having a thickness of greater than 0.01 ?m on the metal substrate, and forming a carbon film on the catalytic layer by chemical vapor deposition (CVD) at a reaction temperature less than the softening temperature of the metal substrate. A carbonaceous material is carried into a CVD reaction area by a carrier gas and is thermally decomposed at a reaction temperature between 300° C. and 1000° C. to form the carbon film having a thickness between 0.1 ?m and 10 ?m on the catalytic layer.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 13, 2008
    Applicant: FENG CHIA UNIVERSITY
    Inventors: Shi-Kun Chen, Tse-Hao Ko, Chih-Yeh Chung, Po-Jen Chu, Cheng-Hao Huang
  • Patent number: 7070706
    Abstract: This invention pertains to the composition and method for fabricating nano-tube composite polymer electrolyte. The composite polymer electrolyte is made by blending suitable amount of highly dispersed, nano-tube, such as titanium dioxide (TiO2), with highly amorphous polymer electrolyte, such as polyethylene oxide. The hollow nano-tube structure facilitates salt dissociation, serves temporarily storage for lithium ions, creates new conducting mechanism and improves the conductivity thereof. The subsequent thermal treatment and high electric field arrange the nano-tubes in order for increase of the dielectric constant thereof, which increased ion mobility at room temperature. The mechanical properties are also improved due to the physical cross-linking of the nano-tubes, suitable for industrial processing.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: July 4, 2006
    Assignee: National Central University
    Inventors: Po-Jen Chu, Chin-Yeh Chiang
  • Publication number: 20040200991
    Abstract: This invention pertains to the composition and method for fabricating nano-tube compositepolymer electrolyte. The composite polymer electrolyte is made by blending suitable amount of highly dispersed, nano-tube, such as titanium dioxide (TiO2), with highly amorphous polymer electrolyte, such as polyethylene oxide. The hollow nano-tube structure facilitates salt dissociation, serves temporarily storage for lithium ions, creates new conducting mechanism and improves the conductivity thereof. The subsequent thermal treatment and high electric field arrange the nano-tubes in order for increase of the dielectric constant thereof, which increased ion mobility at room temperature. The mechanical properties are also improved due to the physical cross-linking of the nano-tubes, suitable for industrial processing.
    Type: Application
    Filed: April 7, 2004
    Publication date: October 14, 2004
    Inventors: Po-Jen Chu, Chin-Yeh Chiang