Patents by Inventor Jou Hyeon Ahn

Jou Hyeon Ahn 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: 20220102722
    Abstract: A sulfur electrode and a method for manufacturing the same are disclosed. The method for manufacturing the sulfur electrode includes: growing carbon fibers on a surface of stainless steel; connecting the stainless steel on which the carbon fibers are grown to a cathode of a current controller in an aqueous solution in which sulfur ions are dissolved; and forming a sulfur thin film on each of surfaces of the carbon fibers grown on the surface of the stainless steel and in each of spaces between the carbon fibers by controlling a current of the current controller.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 31, 2022
    Inventors: Gyu Bong CHO, Ki-won KIM, Jung-pil NOH, Jou Hyeon AHN, Hyo Jun AHN, Kwon-Koo CHO, Tae Hyeon NAM
  • Publication number: 20220102705
    Abstract: A composite sulfide electrode and a manufacturing method therefor are disclosed. A method for manufacturing a composite sulfide electrode comprises the steps of: preparing a mixed solution of polyacrylonitrile (PAN) and a metallic oxide; stirring the prepared mixed solution; electrospinning the stirred mixed solution to prepare a wire-type precursor bearing a metallic oxide in PAN; drying the prepared wire-type precursor; mixing the dried wire-type precursor and a sulfur powder; and injecting a gas to the mixture of the wire-type precursor and the sulfur powder to sulfurize the wire-type precursor.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 31, 2022
    Inventors: Jou Hyeon AHN, Younki LEE, Gyu Bong CHO, Kwon-Koo CHO, Hyo Jun AHN
  • Patent number: 10096836
    Abstract: Disclosed is an electrode. An electrode according to the present invention includes an active material layer; and a current collector which includes a plurality of conductive filaments, wherein at least one from among the plurality of conductive filaments is embedded in the active material layer so that a set length is exposed from the surface thereof.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: October 9, 2018
    Assignee: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Gyu-bong Cho, Tae-hyeon Nam, Ho-suk Ryu, Hyo-jun Ahn, Ki-won Kim, Jou-hyeon Ahn, Kwon-koo Cho
  • Publication number: 20180013147
    Abstract: Disclosed is an electrode. An electrode according to the present invention includes an active material layer; and a current collector which includes a plurality of conductive filaments, wherein at least one from among the plurality of conductive filaments is embedded in the active material layer so that a set length is exposed from the surface thereof.
    Type: Application
    Filed: January 27, 2016
    Publication date: January 11, 2018
    Inventors: Gyu-bong CHO, Tae-hyeon NAM, Ho-suk RYU, Hyo-jun AHN, Ki-won KIM, Jou-hyeon AHN, Kwon-koo CHO
  • Patent number: 9259590
    Abstract: A tube-structured battery to be inserted into a living body is provided. The tube-structured battery includes: a biofuel battery part which generates electric energy by using biofuel in the blood passing through an internal space of the tube structure; a transformer circuit part which adjusts a voltage or current density by using the generated electric energy; and a secondary battery part which is charged with the electric energy by using the adjusted voltage or current density to store the electric energy, wherein the tube-structured battery is inserted into the living body or a blood vessel of the living body.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: February 16, 2016
    Assignee: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Ki-Won Kim, Tae-Hyeon Nam, Jou-Hyeon Ahn, Hyo-Jun Ahn, Gyu-Bong Cho, Jung-Pil Noh, Chang-Joon Kim, Mei-Yu Zhang, Se-Kyo Chung, Dong-Woo Kang, Kwon-Koo Cho, Ho-Suk Ryu
  • Publication number: 20130026969
    Abstract: A tube-structured battery to be inserted into a living body is provided. The tube-structured battery includes: a biofuel battery part which generates electric energy by using biofuel in the blood passing through an internal space of the tube structure; a transformer circuit part which adjusts a voltage or current density by using the generated electric energy; and a secondary battery part which is charged with the electric energy by using the adjusted voltage or current density to store the electric energy, wherein the tube-structured battery is inserted into the living body or a blood vessel of the living body.
    Type: Application
    Filed: November 5, 2010
    Publication date: January 31, 2013
    Applicant: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Ki-Won Kim, Tae-Hyeon Nam, Jou-Hyeon Ahn, Hyo-Jun Ahn, Gyu-Bong Cho, Jung-Pil Noh, Chang-Joon Kim, Mei-Yu Zhang, Se-Kyo Chung, Dong-Woo Kang, Kwon-Koo Cho, Ho-Suk Ryu
  • Patent number: 8242590
    Abstract: A battery mounted semiconductor device is provided. A battery mounted semiconductor device comprises a semiconductor silicon wafer, an electric power supply formed on a backside of the semiconductor silicon wafer and a circuit pattern formed on a front side of the semiconductor silicon wafer.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: August 14, 2012
    Assignee: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Hyo-Jun Ahn, Ki-Won Kim, Jou-Hyeon Ahn, Tae-Hyun Nam, Kwon-Koo Cho, Hwi-Beom Shin, Hyun-Chil Choi, Gyu-Bong Cho, Tae-Bum Kim, Ho-Suk Ryu, Won-Cheol Shin, Jong-Seon Kim
  • Publication number: 20110274954
    Abstract: Disclosed is a thread-type battery. The battery of the present invention comprises a flexible body unit, a first pole terminal which is formed at one end of the body unit, and which protrudes so as to be insertable into a first external terminal, and a second pole terminal which is formed at the other end of the body unit which has a shape in which a second external terminal is to be inserted, and which has a polarity opposite that of the first pole terminal. The present invention enables users to easily connect positive poles and negative poles.
    Type: Application
    Filed: November 25, 2009
    Publication date: November 10, 2011
    Applicant: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Gyu-Bong Cho, Kwon-Koo Cho, Tae-Hyeon Nam, Hyo-Jun Ahn, Ki-Won Kim, Jou-Hyeon Ahn
  • Publication number: 20110193238
    Abstract: A battery mounted semiconductor device is provided. A battery mounted semiconductor device comprises a semiconductor silicon wafer, an electric power supply formed on a backside of the semiconductor silicon wafer and a circuit pattern formed on a front side of the semiconductor silicon wafer.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 11, 2011
    Inventors: Hyo-Jun AHN, Ki-Won Kim, Jou-Hyeon Ahn, Tae-Hyun Nam, Kwon-Koo Cho, Hwi-Beom Shin, Hyun-Chil Choi, Gyu-Bong Cho, Tae-Bum Kim, Ho-Suk Ryu, Won-Cheol Shin, Jong-Seon Kim
  • Patent number: 7915725
    Abstract: Disclosed is a semiconductor silicon wafer having an electric power supply affixed to the backside of the wafer. By fabricating the electric power supply onto the backside of the wafer that has been left unused, the semiconductor chip can have a self-supplied power, realizing the self-powered semiconductor chip with an increased efficiency. Further, since the electric power supply is installed on the wafer, not the semiconductor chip, the fabrication procedure becomes very simple, and the battery can be mounted on any type of chip.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: March 29, 2011
    Assignee: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Hyo-Jun Ahn, Ki-Won Kim, Jou-Hyeon Ahn, Tae-Hyun Nam, Kwon-Koo Cho, Hwi-Beom Shin, Hyun-Chil Choi, Gyu-Bong Cho, Tae-Bum Kim, Ho-Suk Ryu, Won-Cheol Shin, Jong-Seon Kim
  • Publication number: 20100203372
    Abstract: The present invention relates to the wire type battery for wireless charging which is constructed by adding the coil for wireless charging to the wire type battery, by which the present invention can provide the wire type battery for wireless charging to easily carry out charging compared to the existing wire charging method and can solve the problem in the charging which is expected from the shape of the battery to improve the effect of charging.
    Type: Application
    Filed: April 1, 2008
    Publication date: August 12, 2010
    Inventors: Ki-Won Kim, Hwi-Beom Shin, Cheol-Jin Kim, Tae-Hyun Nam, Hyo-Jun Ahn, Kwon-Koo Cho, Jou-Hyeon Ahn, Gyu-Bong Cho
  • Publication number: 20090092901
    Abstract: The present invention relates to a superelastic alloy-Ni sulfide element for a combined current collector-electrode in which Ti—Ni based alloy is used as a current collector and Ni sulfide is used as electrode material, the Ni sulfide being formed on the Ti—Ni based alloy by forming a Ni thin film on a surface of the Ti—Ni based alloy and sulfurdizing the Ti—Ni based alloy comprising the Ni thin film. Thus, a superelastic characteristic of the element is realized as well as small-size integration of a battery is possible.
    Type: Application
    Filed: July 25, 2006
    Publication date: April 9, 2009
    Inventors: Tae-Hyun Nam, Hyo-Jun Ahn, Ki-Won Kim, Kwon-Koo Cho, Jou-Hyeon Ahn, Gyu-Bong Cho, Cheol Am Yu
  • Publication number: 20090071577
    Abstract: The present invention relates to Ti—Ni based functionally graded alloys easy in proportional control, which are made by cold working and annealing Ti—Ni based alloys under a predetermined temperature gradient. The thus processed Ti—Ni based functionally graded alloys have a shape memory effect and an ultra elasticity and at the same time, have a consecutive variation of shape depending on a temperature variation.
    Type: Application
    Filed: July 25, 2006
    Publication date: March 19, 2009
    Inventors: Tae-Hyun Nam, Ki-Won Kim, Hyo-Jun Ahn, Kwon-Koo Cho, Jou-Hyeon Ahn, Gyu-Bong Cho, Yinong Liu, Jung-Moo Lee, Yun-Jung Lee, Cheol-Am Yu
  • Publication number: 20080231345
    Abstract: Disclosed is a semiconductor silicon wafer having an electric power supply affixed to the backside of the wafer. By fabricating the electric power supply onto the backside of the wafer that has been left unused, the semiconductor chip can have a self-supplied power, realizing the self-powered semiconductor chip with an increased efficiency. Further, since the electric power supply is installed on the wafer, not the semiconductor chip, the fabrication procedure becomes very simple, and the battery can be mounted on any type of chip.
    Type: Application
    Filed: October 13, 2006
    Publication date: September 25, 2008
    Inventors: Hyo-Jun Ahn, Ki-Won Kim, Jou-Hyeon Ahn, Tae-Hyun Nam, Kwon-Koo Cho, Hwa-Beom Shin, Hyun-Chil Choi, Gyu-Bong Cho, Tae-Bum Kim, Ho-Suk Ryu, Won-Cheol Shin, Jong-Seon Kim
  • Publication number: 20080066832
    Abstract: The present invention relates to a hybrid superelastic metal-metal sulfide materials for current collector and anode of battery, which use two phase alloy of Ti—Ni or three phase alloy of Ti—Ni—X as current collector, and produce a Ti, Ni sulfide at a surface of current collector with an inside sulfide method to allow to use as an active materials of positive electrode, and perform a role of current collector and anode of battery with one material by endowing all materials with superelastic characteristic, and it have an excellent effect providing a hybrid superelastic metal-metal sulfide materials for current collector and anode having thin plate and fine wire shape.
    Type: Application
    Filed: July 15, 2004
    Publication date: March 20, 2008
    Inventors: Tae-Hyun Nam, Hyo-Jun Ahn, Ki-Won Kim, Kwon-Koo Cho, Jou-Hyeon Ahn, Su-Mun Park, Hwi-Beom Shin, Hyun-Chil Choi, Jong-Uk Kim, Gyu-Bong Cho
  • Publication number: 20070243456
    Abstract: The present invention relates to a thread-type flexible battery, more precisely a thread-type flexible battery that can be transformed into various forms in necessary and easily connected to an instrument from outside thereof by having a shape of a thread, which is constructed by forming an inside electrode by coating electrode material at periphery side of inside current collector, and coating electrolyte at the outside of said inside electrode, and forming an outside electrode by coating electrode material at periphery side of said electrolyte, and then depositing an outside electrolyte and a protecting coating part enabling to protect the periphery side of said outside electrolyte from a moisture and an air.
    Type: Application
    Filed: May 17, 2004
    Publication date: October 18, 2007
    Applicant: Gyeongsang National University
    Inventors: Hyo-Jun Ahn, Ki-Won Kim, Tae-Hyun Nam, Hwi-Beom Shin, Hyun-Chil Busan, Jai-Young Lee, Ho-Suk Ryu, Dong-Hyun Ryu, Sang-Won Lee, Tae-Bum Kim, Sang-Sik Jeong, Byung-Soo Jung, Jong-Hwa Kim, Duck-Jun Lee, Young-Jin Choi, Jou-Hyeon Ahn, Jin-Kyu Kim, Jae-Won Choi, Yeon-Hwa Kim, Jong-Uk Kim
  • Publication number: 20070154814
    Abstract: The present invention relates to a sodium-sulfur battery consisted of solid sodium for the negative electrode (comprising carbon, sodium metal oxide and the like comprising sodium compound, sodium ion); solid sulfur for the positive electrode (comprising sulfur, sulfur compound such as iron sulfide, nickel sulfide); and liquid electrolyte which sodium salt and organic solvent such as grymids or carbonates are soaked in cell guard, thereby improving a drawback of prior art for conventional battery.
    Type: Application
    Filed: March 3, 2004
    Publication date: July 5, 2007
    Inventors: Dong-Hyun Ryu, Chul-Wan Park, Hyo-Jun Ahn, Bong-Jun Kim, Eun-Mi Lee, Ho-Suk Ryu, Sang-Won Lee, Ki-Won Kim, Jou-Hyeon Ahn, Jai-Young Lee, Sang-Sik Jeong, Byung-Su Jung, Duck-Jun Lee, Young-Jin Choi, Jin-Kyu Kim
  • Patent number: 6541527
    Abstract: The present invention relates to a process for preparing post-crosslinked polymer bead with increased surface area and pore volume, and suitable pore size, allowing the separation of organic compounds by post-crosslinking gel-type copolymer bead whose crosslinking degree is low and initial surface area is small, or macroporous-type copolymer bead whose crosslinking degree is high and initial surface area is intermediate in the presence of a Friedel-Crafts catalyst, and polymer beads produced thereby. Though the surface area and pore volume of polymer beads may be varied depending on physical properties of copolymer beads and Friedel-Crafts reaction conditions, the present invention provides polymer beads with larger surface area than that of commercially available polymeric adsorbents produced by the conventional method employing a porogen only.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: April 1, 2003
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Son Ki Ihm, Chang Gun Oh, Jou Hyeon Ahn, Jin Eun Jang
  • Patent number: 6063943
    Abstract: The present invention relates to a heterogeneous polyimide-supported transition metal complex catalyst for epoxidation of olefin, which is prepared by impregnating a heat- and acid-resistant polyimide resin with a homogeneous metal catalyst of molybdenum, vanadium, tungsten or titanium, and a process for preparing epoxy compounds using the same. The heterogeneous polyimide-supported transition metal complex catalyst of the invention provides superior catalytic activity, selectivity and stability in the epoxidation of higher olefin. Further, the catalyst of the invention has strong resistance against heat and acid. Besides, the catalyst of the invention may provide the following advantages which are critical in industrial use: it permits relatively high yield of epoxy compounds; and, it can be easily separated from the reaction product, which eases recycling of the catalyst.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: May 16, 2000
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Son Ki Ihm, Chang Gun Oh, Jou Hyeon Ahn, Jong Chan Kim, David C. Sherrington