Patents by Inventor Kuan-Zong Fung
Kuan-Zong Fung 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).
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Patent number: 10906099Abstract: A preparation method of high purity and densified tungsten-titanium metal which mixes titanium metal powder and tungsten metal powder together; adds metallic nitrates (such as nickel nitrate) as combustion improvers; then taking into the account of the characteristics of metal nitrate, which is soluble in alcohols to form a liquidous precursor, adds metal powder to mix together thoroughly, so that the sintering agent is expected to be colloid and uniformly spread among the tungsten-titanium metal powder. The preparation method significantly reduces the ratio of the combustion improver during the preparation of the high purity and densified tungsten-titanium target material.Type: GrantFiled: August 17, 2018Date of Patent: February 2, 2021Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Mau-Sheng Chiou, Chien-Hung Liao, Chao-Nan Wei, Hui-Yun Bor, Kuan-Zong Fung
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Publication number: 20190193153Abstract: A preparation method of high purity and densified tungsten-titanium metal which mixes titanium metal powder and tungsten metal powder together; adds metallic nitrates (such as nickel nitrate) as combustion improvers; then taking into the account of the characteristics of metal nitrate, which is soluble in alcohols to form a liquidous precursor, adds metal powder to mix together thoroughly, so that the sintering agent is expected to be colloid and uniformly spread among the tungsten-titanium metal powder. The preparation method significantly reduces the ratio of the combustion improver during the preparation of the high purity and densified tungsten-titanium target material.Type: ApplicationFiled: August 17, 2018Publication date: June 27, 2019Inventors: MAU-SHENG CHIOU, CHIEN-HUNG LIAO, CHAO-NAN WEI, HUI-YUN BOR, KUAN-ZONG FUNG
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Publication number: 20180021857Abstract: A method of preparing a tungsten metal material with high purity, comprising the steps of (A) providing a tungsten metal powder to mix with a metal nitrate to form a mixed powder slurry; (B) ball-grinding the mixed powder slurry to obtain a uniformly mixed powder; (C) sintering the uniformly mixed powder to obtain the tungsten metal material with high purity. Accordingly, the tungsten metal material with purity more than 99.9% can be prepared, so as to prepare the tungsten metal target.Type: ApplicationFiled: November 30, 2016Publication date: January 25, 2018Inventors: CHIA-SHIH LIN, CHAO-NAN WEI, CUO-YO NIEH, HUI-YUN BOR, KUAN-ZONG FUNG
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Patent number: 9692074Abstract: A solid oxide fuel cell structure includes an anode, a cathode arranged oppositely relative to the anode and electrolyte located between the anode and the cathode and at least two air paths each having a distal end provided with a turn and a continuous surface on the inner surface of the distal end.Type: GrantFiled: April 19, 2012Date of Patent: June 27, 2017Assignee: NATIONAL CHENG KUNG UNIVERSITYInventor: Kuan-Zong Fung
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Publication number: 20120270140Abstract: A solid oxide fuel cell structure includes an anode, a cathode arranged oppositely relative to the anode and electrolyte located between the anode and the cathode and at least two air paths each having a distal end provided with a turn and a continuous curve closing the distal end.Type: ApplicationFiled: April 19, 2012Publication date: October 25, 2012Applicant: NATIONAL CHENG KUNG UNIVERSITYInventor: Kuan-Zong FUNG
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Publication number: 20120138566Abstract: Disclosed is a method for lithography etching a glass substrate. The method includes the steps of providing a glass substrate, providing miniature balls on the glass substrate so that the miniature balls become an etching-resistant layer, etching the glass substrate covered by the miniature balls to make a miniature pattern on the glass substrate, and removing the miniature balls from the substrate.Type: ApplicationFiled: July 27, 2011Publication date: June 7, 2012Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Chao-Nan Wei, Hui-Yun Bor, Kuan-Zong Fung, Meng-Hung Tsai
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Publication number: 20110159445Abstract: Disclosed is a method for making a texture on a face of a transparent conductive film coated on a glass substrate. The method includes the steps of forming a texture on the face of the glass substrate and coating the transparent conductive film on the texture formed on the face of the glass substrate.Type: ApplicationFiled: November 18, 2010Publication date: June 30, 2011Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Chao-Nan Wei, Hui-Yun Bor, Kuan-Zong Fung, Yi-Chian Liao
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Publication number: 20110043964Abstract: A ceramic powder composition, ceramic material, and a multi-layer ceramic capacitor fabricated thereby are provided. The ceramic powder composition includes a main ingredient and an accessory ingredient. The main ingredient is in an amount of 95 to 99 mol %, and includes BaTiO3, and the accessory ingredient is in an amount of 1 to 5 mol %, and consists of oxide Bi2O3—Tio2—XO, where X is selected from a group consisting of magnesium (Mg), vanadium (V), manganese (Mn), and chromium (Cr).Type: ApplicationFiled: August 20, 2010Publication date: February 24, 2011Applicant: Darfon Electronics Corp.Inventors: I-LUN HUANG, Ting-An Chien, Hsiu-Hsiang Pei, Chao-Kuang Hsiao, Kuan-Zong Fung, Chih-Cheng Chen
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Publication number: 20050201919Abstract: The present invention relates to materials for cathode in solid oxide fuel cells, more particularly, an oxide having high oxygen vacancies and high conductivity as cathode, which is able to accelerate absorption of oxygen molecule and diffusion of oxygen ion for reducing internal resistance of cells, in other words, reducing overpotential of cathode, and improvement of electric generation efficiency of fuel cells. General form of the cathode materials is Ln1-xAxCu1-yByO2.5±?, wherein Ln is lanthanide ion, A is alkaline-earth metal, B is metal. Cathode dope different alkaline-earth metal on A side to converse partly copper (Cu) to trivalence copper ion for forming perovskite having oxygen vacancies with regularity sequence, by utilizing catalytic of cathode electrode accelerating cathode reaction and compound electron being conducted though external circuit with conversing oxygen to form oxygen ion for obtaining anode and hydrogen reaction by diffusing oxygen ion to electrolyte.Type: ApplicationFiled: March 11, 2004Publication date: September 15, 2005Inventors: Ho-Chieh Yu, Kuan-Zong Fung
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Patent number: 6632763Abstract: A ceramic composite containing alkali-metal-beta- or beta″-alumina and an oxygen-ion conductor is fabricated by converting alpha-alumina to alkali-metal-beta- or beta″-alumina. A ceramic composite with continuous phases of alpha-alumina and the oxygen-ion conducting ceramic, such as zirconia, is exposed to a vapor containing an alkali-metal oxide, such as an oxide of sodium or potassium. Alkali metal ions diffuse through alkali-metal-beta- or beta″-alumina converted from &agr;-alumina and oxygen ions diffuse through the oxygen-ion conducting ceramic to a reaction front where alpha-alumina is converted to alkali-metal-beta- or beta″-alumina. A stabilizer for alkali-metal-beta″-alumina is preferably introduced into the &agr;-alumina/oxygen-ion conductor composite or introduced into the vapor used to convert the alpha-alumina to an alkali-metal-beta″-alumina.Type: GrantFiled: December 2, 2002Date of Patent: October 14, 2003Assignee: Materials and Systems Research, Inc.Inventors: Anil Vasudeo Virkar, Jan-Fong Jue, Kuan-Zong Fung
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Publication number: 20030087752Abstract: A ceramic composite containing alkali-metal-beta- or beta″-alumina and an oxygen-ion conductor is fabricated by converting alpha-alumina to alkali-metal-beta- or beta″-alumina. A ceramic composite with continuous phases of alpha-alumina and the oxygen-ion conducting ceramic, such as zirconia, is exposed to a vapor containing an alkali-metal oxide, such as an oxide of sodium or potassium. Alkali metal ions diffuse through alkali-metal-beta- or beta″-alumina converted from &agr;-alumina and oxygen ions diffuse through the oxygen-ion conducting ceramic to a reaction front where alpha-alumina is converted to alkali-metal-beta- or beta″-alumina. A stabilizer for alkali-metal-beta″-alumina is preferably introduced into the &agr;-alumina/oxygen-ion conductor composite or introduced into the vapor used to convert the alpha-alumina to an alkali-metal-beta″-alumina.Type: ApplicationFiled: December 2, 2002Publication date: May 8, 2003Inventors: Anil Vasudeo Virkar, Jan-Fong Jue, Kuan-Zong Fung
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Patent number: 6537940Abstract: A ceramic composite containing alkali-metal-&bgr;- or &bgr;″-alumina and an oxygen-ion conductor is fabricated by converting &agr;-alumina to alkali-metal-&bgr;- or &bgr;″-alumina. A ceramic composite with continuous phases of &agr;-alumina and the oxygen-ion conducting ceramic, such as zirconia, is exposed to a vapor containing an alkali-metal oxide, such as an oxide of sodium or potassium. Alkali metal ions diffuse through alkali-metal-&bgr;- or &bgr;″-alumina converted from &agr;-alumina and oxygen ions diffuse through the oxygen-ion conducting ceramic to a reaction front where &agr;-alumina is converted to alkali-metal-&bgr;- or &bgr;″-alumina. A stabilizer for alkali-metal-&bgr;″-alumina is preferably introduced into the &agr;-alumina/oxygen-ion conductor composite or introduced into the vapor used to convert the &agr;-alumina to an alkali-metal-&bgr;″-alumina.Type: GrantFiled: August 10, 2000Date of Patent: March 25, 2003Assignee: Materials and Systems Research, Inc.Inventors: Anil Vasudeo Virkar, Jan-Fong Jue, Kuan-Zong Fung
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Patent number: 6326096Abstract: A solid oxide fuel cell interconnector having a superalloy metallic layer with an anode-facing face and a cathode-facing face and metal layer on the anode-facing face of the superalloy metallic layer. The metal layer is a metal which does not oxidize in a fuel atmosphere, preferably nickel or copper.Type: GrantFiled: February 4, 1998Date of Patent: December 4, 2001Assignee: Gas Research InstituteInventors: Anil V. Virkar, Diane M. England, Karun Mehta, Jai-Woh Kim, Kuan-Zong Fung
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Patent number: 6228521Abstract: The present invention concerns a high power density solid oxide fuel cell having a cathode, electrolyte and graded porous anode. The graded porosity of the anode allows easy transport of fuel gases thereby minimizing concentration polarization. Power densities of about 1.8 W/cm2 at 800° C. and about 0.8 W/cm2 at about 650° C. have been achieved with graded porous anodes as thick as 0.75 mm. These fuel cells having a graded porous anode are more durable and mechanically reliable than those found in the art.Type: GrantFiled: December 8, 1998Date of Patent: May 8, 2001Assignee: The University of Utah Research FoundationInventors: Jai-Woh Kim, Kuan-Zong Fung, Anil V. Virkar
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Patent number: 6117807Abstract: A ceramic composite containing alkali-metal-.beta.- or .beta."-alumina and an oxygen-ion conductor is fabricated by converting .alpha.-alumina to alkali-metal-.beta.- or .beta."-alumina. A ceramic composite with continuous phases of .alpha.-alumina and the oxygen-ion conducting ceramic, such as zirconia, is exposed to a vapor containing an alkali-metal oxide, such as an oxide of sodium or potassium. Alkali metal ions diffuse through alkali-metal-.beta.- or .beta."-alumina converted from .alpha.-alumina and oxygen ions diffuse through the oxygen-ion conducting ceramic to a reaction front where .alpha.-alumina is converted to alkali-metal-.beta.- or .beta."-alumina. A stabilizer for alkali-metal-.beta."-alumina is preferably introduced into the .alpha.-alumina/oxygen-ion conductor composite or introduced into the vapor used to convert the .alpha.-alumina to an alkali-metal-.beta."-alumina.Type: GrantFiled: January 2, 1998Date of Patent: September 12, 2000Assignee: Materials and Systems Research, Inc.Inventors: Anil Vasudeo Virkar, Jan-Fong Jue, Kuan-Zong Fung
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Patent number: 6106967Abstract: A solid oxide fuel cell stack having a plurality of integral component fuel cell units, each integral component fuel cell unit having a porous anode layer, a porous cathode layer, and a dense electrolyte layer disposed between the porous anode layer and the porous cathode layer. The porous anode layer forms a plurality of substantially parallel fuel gas channels on its surface facing away from the dense electrolyte layer and extending from one side to the opposite side of the anode layer, and the porous cathode layer forms a plurality of substantially parallel oxidant gas channels on its surface facing away from the dense electrolyte layer and extending from one side to the opposite side of the cathode. A flexible metallic foil interconnect is provided between the porous anode and porous cathode of adjacent integral component fuel cell units.Type: GrantFiled: June 14, 1999Date of Patent: August 22, 2000Assignee: Gas Research InstituteInventors: Anil V. Virkar, Jai-Woh Kim, Kuan-Zong Fung
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Patent number: 5543239Abstract: An improved electrode design for solid state devices, fuel cells, sensors and the like is made by incorporation of a porous layer of the electrolyte material over the dense electrolyte, and by the introduction of an electrocatalyst into the porous layer such that it is also continuous. The resulting electrode structure of dense electrolyte/porous electrolyte, continuous electrocatalyst and gas phase are present creating an enhanced three phase (TPB) length over that of conventional designs. The design allows for improved performance at lower temperatures which means a lower cost of materials, fewer problems from oxidation and corrosion, and improved durability. In a preferred embodiment, the dense electrolyte and porous electrolyte is yttria-stabilized zirconia (YSZ), and the electrocatalyst is selected from silver; platinum; rhodium; palladium; iridium; ruthenium;(La.sub.1-x Sr.sub.x) MnO.sub.3, wherein x is 0 to 0.5;(La.sub.1-x Sr.sub.x) CoO.sub.3, wherein x is 0 to 0.6;(La.sub.1-x Sr.sub.x)(Co.sub.1-y Fe.Type: GrantFiled: April 19, 1995Date of Patent: August 6, 1996Assignee: Electric Power Research InstituteInventors: Anil V. Virkar, Kuan-Zong Fung, Cameron W. Tanner
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Patent number: 5183801Abstract: Disclosed is a stable bismuth oxide composition having excellent oxygen ion conductivity comprising: from 50 to 90 mole % Bi.sub.2 O.sub.3, from 10 to 40 mole % of a rare earth oxide, such as yttria; and from 0.1 to 10 mole % of an oxide compound, such as ZrO.sub.2 or ThO.sub.2. The composition retains its oxygen ion transport capabilities even after prolonged annealing.Type: GrantFiled: April 9, 1991Date of Patent: February 2, 1993Assignee: Gas Research InstituteInventors: Anil V. Virkar, Kuan-Zong Fung