Patents by Inventor Heung Yong Ha

Heung Yong Ha 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).

  • Patent number: 8029940
    Abstract: Provided is an MEA for fuel cell containing hygroscopic inorganic material such as TEOS (tetraethylorthosilicate), zirconium propoxide or titanium t-butoxide.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: October 4, 2011
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyoung-Juhn Kim, Eun Ae Cho, Sung Pil Yoon, Jonghee Han, Jaeyoung Lee, Tae-Hoon Lim, Suk-Woo Nam, Heung Yong Ha, Seong Ahn Hong, In-Hwan Oh
  • Publication number: 20110217614
    Abstract: Provided are a direct formic acid fuel cell and a method of operation thereof capable of maintaining performance constantly through implementing the real time measurement and control of formic acid concentration.
    Type: Application
    Filed: May 17, 2011
    Publication date: September 8, 2011
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jaeyoung LEE, Jonghee HAN, Tae Hoon LIM, Suk-Woo NAM, Sung Pil YOON, Hyoung-Juhn KIM, Eun Ae CHO, Heung Yong HA, Seong Ahn HONG, In Hwan OH, Hyung Chul HAHM, Yeong Cheon KIM, Sang Yeop LEE, Kwang Soo LEE
  • Patent number: 7960071
    Abstract: Disclosed is a separator for a fuel cell made of a metal plate comprising both a cooling water flow field and a gas flow field formed on each surface thereof, wherein the separator consists of the joined metal plates for the cooling water flow fields to face each other, the surfaces of the joined metal plates are coated with TiN, a polymer electrolyte membrane fuel cell comprising the separator and a method for manufacturing the separator.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: June 14, 2011
    Assignee: Korea Institute of Science and Technology
    Inventors: In-Hwan Oh, Eun Ae Cho, Sung-Goon Kang, Ui Sik Jeon, Heung Yong Ha, Seong Ahn Hong, Tae Hoon Lim, Suk-Woo Nam, Sung Pil Yoon, Jonghee Han
  • Publication number: 20100279197
    Abstract: A membrane-electrode binder for a fuel cell, a method of manufacturing the binder, and a fuel cell comprising the binder are provided, in which the membrane-electrode binder comprises a dual electrode constituted by a first electrode and a second electrode in a two-layer form, and a polymer electrolyte membrane disposed on the dual electrode, the dual electrode comprising an electrode substrate and a catalyst layer formed thereon. In detail, the membrane-electrode binder comprises the dual electrode that is constituted by the first electrode obtained by using a PBI-based binder, the second electrode obtained by using a PTFE-based binder, and an inorganic acid doped PBI-based polymer electrolyte membrane disposed on the dual electrode and coming in contact with the first electrode.
    Type: Application
    Filed: December 19, 2007
    Publication date: November 4, 2010
    Applicant: Korea Institute of Science & Technology
    Inventors: Hyoung-Juhn Kim, Jeung-woo Lee, Tae-Hoon Lim, Jonghee Han, Heung Yong Ha, Eun Ae Cho, Sung Pil Yoon
  • Patent number: 7790220
    Abstract: The present invention, by coating the polymer electrolyte membranes for fuel cells with inorganic thin films via a PECVD method or a reactive sputtering method, reduces the methanol crossover sizably without seriously reducing the ionic conductivity of polymer electrolyte membranes, thereby, when applied to fuel cells, realizes a high performance of fuel cells. A surface of membrane can be coated with inorganic thin films made of inorganic materials, which are for example silicone oxide, titanium oxide, etc., so as to make composite polymer electrolyte membrane. For coating, plasma enhanced chemical vapor deposition method or reactive method can be used.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: September 7, 2010
    Assignee: Korea Institute of Science & Technology
    Inventors: Heung-Yong Ha, Soon-Jong Kwak, Daejin Kim, Juno Shim, In-Hwan Oh, Seong-Ahn Hong, Tae-Hoon Lim, Suk-Woo Nam
  • Patent number: 7740670
    Abstract: Disclosed is a catalyst for a partial oxidation reforming reaction of fuel in the form of disk having through-hole. In addition, according to the invention, there is provided a fuel reforming apparatus and method using the catalyst. The catalyst for a partial oxidation reforming reaction of fuel according to the invention makes it possible to progress the partial oxidation reforming reaction of fuel smoothly, to improve the efficiency when reforming the fuel and to simplify the fuel reforming reactor. According to the fuel reforming apparatus and method, since the heat of reaction is efficiently controlled and used, a simple on-off operation, reduction of starting time and a stable operational condition are accomplished, which are indispensably required for a fuel reforming system in fuel cells, such as household, portable and car fuel cells.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: June 22, 2010
    Assignee: Korea Institute of Science & Technology
    Inventors: Suk-Woo Nam, Sang Jun Kong, Seong-Ahn Hong, In-Hwan Oh, Tae-Hoon Lim, Heung Yong Ha, Sung Pil Yoon, Jonghee Han, Eun Ae Cho
  • Patent number: 7678470
    Abstract: Disclosed is a reinforced matrix for a molten carbonate fuel cell comprising a porous aluminum support and a lithium aluminate tape-cast on the porous aluminum support. Further, disclosed is a method for preparing the molten carbonate fuel cell comprising the reinforced matrix comprising steps of tape-casting a lithium aluminate on a porous aluminum support so as to prepare a reinforced matrix (S1), making a unit cell or a stack of the unit cells using the reinforced matrix (S2) and heat treating the unit cell or the stack so as to oxidize aluminum in the support into lithium aluminate (S3). According to the present invention, the method is simple and economic, and the mass production of the matrix is easy, and strength of the matrix can be increased effectively and therefore there is no worry about fracture or crack.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: March 16, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung Pil Yoon, Seong Ahn Hong, In Hwan Oh, Tae Hoon Lim, Suk-Woo Nam, Heung Yong Ha, Jonghee Han, Eun Ae Cho, Jaeyoung Lee
  • Publication number: 20100021794
    Abstract: Disclosed is a method for fabricating a carbon material, by which carbon fibers or carbon tubes, particularly branched carbon fibers or carbon tubes, are obtained via a so-called self-growing process without using external carbon sources. The carbon material obtained by the method has a large specific surface area and further includes a metal catalyst, and thus may be used in cell materials for a fuel cell or secondary battery, hydrogen storage devices, capacitors, solar cells, display panel or the like.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHOLOGY
    Inventors: Soo-Kil KIM, Heung Yong Ha, Han-ik Joh, Seong Mu Jo, Suk-Woo Nam, In Hwan Oh, Tae Hoon Lim, Seong Ahn Hong, Sung-Yeon Jang
  • Publication number: 20090238711
    Abstract: Disclosed is a Ni-Al alloy anode for molten carbonate fuel cell made by in-situ sintering the Ni-Al alloy. Further, disclosed is a method for preparing the same comprising steps of preparing a sheet with Ni-Al alloy powders (S1); and installing the sheet in a fuel cell without any heat treatment for sintering the Ni-Al alloy in the sheet and then in-situ sintering the Ni-Al alloy in the sheet during a pretreatment process of the cell with the sheet (S2), wherein a reaction activity of the Ni-Al alloy anode can be maintained, the method is simple and economic, and a mass production of the Ni-Al alloy anode and a scale-up in the method are easy.
    Type: Application
    Filed: June 2, 2009
    Publication date: September 24, 2009
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Pil Yoon, Seong Ahn Hong, In Hwan Oh, Tae Hoon Lim, Suk-Woo Nam, Heung Yong Ha, Jonghee Han, Eun Ae Cho, Jaeyoung Lee
  • Publication number: 20090233148
    Abstract: A membrane-electrode assembly (MEA) is prepared by a low-temperature transfer method. A binder-free carbon layer is formed on a transfer substrate so as to avoid decreased performance due to the formation of a skin layer caused by the interfacial segregation of the ionomer or binder.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 17, 2009
    Applicant: Korea Institute of Science & Technology
    Inventors: Soo-Kil KIM, Jae Hyung Cho, Heung Yong Ha, In Hwan Oh, Tae Hoon Lim, Suk-woo Nam, Seong Ahn Hong
  • Publication number: 20090208793
    Abstract: Disclosed is a hybrid-type power supplying apparatus which may use a fuel cell device as a main power supplier for a robot and a rechargeable battery as an auxiliary power supplier for the robot. In the hybrid-type power supplying apparatus, when the power consumption of the robot exceeds the selected amount of power generation of the fuel cell device, the loads of the rechargeable battery and the fuel cell stack can be managed in such a manner that power is supplied from the rechargeable battery to the robot as an auxiliary power for the robot supplementing the main power for the robot.
    Type: Application
    Filed: October 10, 2008
    Publication date: August 20, 2009
    Applicant: Korea Institute of Science & Technology
    Inventors: Heung Yong Ha, Han-ik Joh, Tae Jung Ha, Soo-Kil Kim, Hyoung-Juhn Kim, Tae Hoon Lim, Suk-Woo Nam, In Hwan Oh, Seong Ahn Hong
  • Publication number: 20090208814
    Abstract: The present invention relates to a honeycomb type SOFC wherein a first material, density of which is lowered upon phase-transition, a second material having higher thermal expansion coefficient than that of an electrode supporter, or a composite material of the first and second materials is filled in the electrode channel to which the collector is bonded as a material which can form an oxide under the electrode atmosphere, and a manufacturing method thereof.
    Type: Application
    Filed: December 11, 2006
    Publication date: August 20, 2009
    Applicant: Korea Institute of Science & Technology
    Inventors: Sung Pil Yoon, Tae Hoon Lim, Suk-woo Nam, Heung Yong Ha, Jonghee Han, Hyoung-Juhn Kim, Eun Ae Cho, Jaeyoung Lee, Hyung Chul Hahm
  • Publication number: 20090023018
    Abstract: Disclosed are a multi-layered electrode for fuel cell and a method for producing the same, wherein the electrode can be operated under non-humidification and normal temperature, the flooding of the electrode catalyst layer can be prevented, and the long-term operation characteristic can be increased due to the prevention of the loss of the electrode catalyst layer.
    Type: Application
    Filed: October 31, 2005
    Publication date: January 22, 2009
    Applicant: Korea Institute of Science and Technology
    Inventors: In Hwan Oh, Eun Ae Cho, Hyoung-Juhn Kim, Heung Yong Ha, Seong Ahn Hong, Tae Hoon Lim, Suk-Woo Nam, Sung Pil Yoon, Jonghee Han, Jaeyoung Lee, Hyung Chul Hahm
  • Publication number: 20080299421
    Abstract: A separation plate having a gas flow path is segmented for analyzing MEA performance without segmenting an electrode or a gas diffusion layer. In advance, a MEA is operated for a long time in a real stack environment using a typical separation plate which is not segmented, and then the segmented separation plate for analyzing MEA performance is mounted to the MEA.
    Type: Application
    Filed: October 31, 2005
    Publication date: December 4, 2008
    Applicant: Korea Institute of Science & Technology
    Inventors: Eun Ae Cho, In-Hwan Oh, Hyoung-Juhn Kim, Yeong Cheon Kim, Sang-Yeop Lee, Tae-Hoon Lim, Suk-woo Nam, Sung Pil Yoon, Jonghee Han, Heung Yong Ha, Hyung Chul Hahm, Jaeyoung Lee
  • Publication number: 20080241620
    Abstract: A separator for cooling an MCFC has a cooling gas flow path provided in the separator, a cooling anode gas or a cooling cathode gas flowing through the cooling gas flow path, the cooling anode gas or the cooling cathode gas having a temperature lower than that of a general anode gas or a general cathode gas which is supplied to an anode or a cathode of the MCFC.
    Type: Application
    Filed: December 31, 2007
    Publication date: October 2, 2008
    Applicant: Korea Institue of Science and Technology
    Inventors: Hyung Chul Ham, Seong-Ahn Hong, In-Hwan Oh, Tae-Hoon Lim, Suk Woo Nam, Heung Yong Ha, Jonghee Han, Sung Pil Yoon, Jaeyoung Lee, Hyoung-Juhn Kim, Eun Ae Cho, Yeong Cheon Kim, Sang-Yeop Lee
  • Patent number: 7402294
    Abstract: Disclosed is a catalyst for a partial oxidation reforming reaction of fuel in the form of disk having through-hole. In addition, according to the invention, there is provided a fuel reforming apparatus and method using the catalyst. The catalyst for a partial oxidation reforming reaction of fuel according to the invention makes it possible to progress the partial oxidation reforming reaction of fuel smoothly, to improve the efficiency when reforming the fuel and to simplify the fuel reforming reactor. According to the fuel reforming apparatus and method, since the heat of reaction is efficiently controlled and used, a simple on-off operation, reduction of starting time and a stable operational condition are accomplished, which are indispensably required for a fuel reforming system in fuel cells, such as household, portable and car fuel cells.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: July 22, 2008
    Assignee: Korea Institute of Science & Technology
    Inventors: Suk-Woo Nam, Sang Jun Kong, Seong-Ahn Hong, In-Hwan Oh, Tae-Hoon Lim, Heung Yong Ha, Sung Pil Yoon, Jonghee Han, Eun Ae Cho
  • Publication number: 20070287050
    Abstract: Provided is an MEA for fuel cell containing hygroscopic inorganic material such as TEOS (tetraethylorthosilicate), zirconium propoxide or titanium t-butoxide.
    Type: Application
    Filed: November 30, 2006
    Publication date: December 13, 2007
    Inventors: Hyoung-Juhn Kim, Eun Ae Cho, Sung Pil Yoon, Jonghee Han, Jaeyoung Lee, Tae-Hoon Lim, Suk-Woo Nam, Heung Yong Ha, Seong Ahn Hong, In-Hwan Oh
  • Publication number: 20070231655
    Abstract: The present invention relates to a method for manufacturing composite polymer electrolyte membranes coated with inorganic thin films for fuel cells using a plasma enhanced chemical vapor deposition (PECVD) method or a reactive sputtering method, so as to reduce the crossover of methanol through polymer electrolyte membranes for fuel cells and enhance the performance of the fuel cells. The manufacturing method of composite polymer electrolyte membranes coated with inorganic thin films for fuel cells according to the present invention is characterized to obtain composite membranes by coating the surface of commercial composite polymer electrolyte membranes for fuel cells with inorganic thin films using a PECVD method or a reactive sputtering method. The inorganic materials to form the inorganic thin films are chosen one or more from the group comprising silicon oxide (SiO2), titanium oxide (TiO2), zirconium oxide (ZrO2), zirconium phosphate (Zr(HPO4)2), zeolite, silicalite, and aluminum oxide (Al2O3).
    Type: Application
    Filed: April 27, 2007
    Publication date: October 4, 2007
    Applicant: Korea Institute of Science & Technology
    Inventors: Heung-Yong Ha, Soon Jong Kwak, Daejin Kim, Juno Shim, In-Hwan Oh, Seong-Ahn Hong, Tae-Hoon Lim, Suk-Woo Nam
  • Patent number: 7271127
    Abstract: Disclosed is a catalyst for a partial oxidation reforming reaction of fuel in the form of disk having through-hole. In addition, according to the invention, there is provided a fuel reforming apparatus and method using the catalyst. The catalyst for a partial oxidation reforming reaction of fuel according to the invention makes it possible to progress the partial oxidation reforming reaction of fuel smoothly, to improve the efficiency when reforming the fuel and to simplify the fuel reforming reactor. According to the fuel reforming apparatus and method, since the heat of reaction is efficiently controlled and used, a simple on-off operation, reduction of starting time and a stable operational condition are accomplished, which are indispensably required for a fuel reforming system in fuel cells, such as household, portable and car fuel cells.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: September 18, 2007
    Assignee: Korea Institute of Science and Technology
    Inventors: Suk-Woo Nam, Sang Jun Kong, Seong-Ahn Hong, In-Hwan Oh, Tae-Hoon Lim, Heung Yong Ha, Sung Pil Yoon, Jonghee Han, EunAe Cho
  • Publication number: 20070202369
    Abstract: Provided are a direct formic acid fuel cell capable of maintaining performance constantly through implementing the real time measurement and control of formic acid concentration.
    Type: Application
    Filed: October 30, 2006
    Publication date: August 30, 2007
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jaeyoung LEE, Jonghee HAN, Tae Hoon LIM, Suk-Woo NAM, Sung Pil YOON, Hyoung-Juhn KIM, Eun Ae CHO, Heung Yong HA, Seong Ahn HONG, In Hwan OH, Hyung Chul HAHM, Yeong Cheon KIM, Sang Yeop LEE, Kwang Soo LEE