Patents by Inventor Sheng-Long Lee
Sheng-Long Lee 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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Publication number: 20210129272Abstract: The present invention provides a solder for nickel based superalloy soldering. The solder includes 11 wt % to 13 wt % chromium, 5.0 wt % to 7.0 wt % aluminum, 3.5 wt % to 5.0 wt % molybdenum, 1.5 wt % to 2.5 wt % niobium, 0.4 wt % to 1.0 wt % titanium, 0.03 wt % to 0.07 wt % carbon, 0.05 wt %-0.15 wt % zirconium, 0.001 wt % to 0.1 wt % boron and remainder nickel or other inevitable impurities, thereby reducing occurrence of soldering hot cracking and insufficient weld bead strength in nickel based superalloy raw materials during soldering.Type: ApplicationFiled: October 30, 2019Publication date: May 6, 2021Inventors: Chao-Yu Lin, Chao-Nan Wei, Chien-Hung Liao, Hui-Yun Po, Sheng-Long Lee, Yu-Chih Tseng, Vun-Shing Chengn
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Publication number: 20150162634Abstract: The preparation method of electrolytes provided by the present invention involves applications of a first solid oxide powder and a second solid oxide powder, both of which are prepared by using a sol-gel process and a calcination process. Each of the first and second solid oxide powders is a Perovskite-type oxide. After the first and second solid oxide powders are readily mixed, they are compressed into a pellet and then sintered to prepare the afore-mentioned electrolytes for SOFC. It is found in the present invention that by mixing and compressing different solid oxide powders, the solid oxide powder having smaller particle size can fill into the gaps of the other solid oxide powder. After the pellet is sintered, the density of the product is significantly improved.Type: ApplicationFiled: February 13, 2015Publication date: June 11, 2015Inventors: Sheng-Wei LEE, Kan-Rong LEE, Jing-Chie LIN, Chuan LI, Chung-Jen TSENG, Jeng-Kuei CHANG, Shian-Ching JANG, I-Ming HUNG, Chi-Shiung HSI, Sheng-Long LEE, Yen-Jiun CHIANG, Yu-Shuo HUANG
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Publication number: 20150037694Abstract: The preparation method of electrolytes provided by the present invention includes a first solid oxide powder and a second solid oxide powder, both of which are prepared by using a sol-gel process and a calcination process. Each of the first and second solid oxide powders is a Perovskite-type oxide. After the first and second solid oxide powders are readily mixed, they are compressed into a pellet and then sintered to prepare the afore-mentioned electrolytes for SOFC. It is found in the present invention that by mixing and compressing different solid oxide powders, the solid oxide powder having smaller particle size can fill into the gaps of the other solid oxide powder. After the pellet is sintered, the density of the product is significantly improved.Type: ApplicationFiled: September 20, 2013Publication date: February 5, 2015Applicant: NATIONAL CENTRAL UNIVERSITYInventors: SHENG-WEI LEE, KAN-RONG LEE, JING-CHIE LIN, CHUAN LI, CHUNG-JEN TSENG, JENG-KUEI CHANG, SHIANG-CHING JANG, I-MING HUNG, CHI-SHIUNG HSI, SHENG-LONG LEE, YEN-CHUN CHIANG
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Publication number: 20120211376Abstract: A hydrogen storage apparatus includes a canister, a first filter element and at least one hydrogen storage unit. The canister has an opening and a rod. The first filter element is disposed in the opening. The hydrogen storage unit is accommodated in the canister. The hydrogen storage unit includes a compartment structure and a hydrogen channel element. The compartment structure divides a space inside the canister, and the hydrogen channel element is pierced by the rod and connected with the compartment structure. The hydrogen channel element includes a plurality of axial channels and a plurality of radial channels. The axial channels are connected with the opening and the radial channels. The radial channels are connected with the space inside the canister.Type: ApplicationFiled: April 6, 2011Publication date: August 23, 2012Applicant: National Central UniversityInventors: Chih-Ang CHUNG, Sheng-Long LEE, Chih-Kuang LIN, Bo-Yu CHIOU
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Publication number: 20120132545Abstract: A hydrogen storage device includes a hydrogen storage can, at least one first partition, and at least one second partition. The hydrogen storage can defines a major axis. The at least one first partition is used to partition the space in the hydrogen storage can into at least one compartment. The at least one second partition includes a plurality of sub-compartments. The sub-compartments are arranged linearly in at least one row perpendicular to the major axis.Type: ApplicationFiled: March 7, 2011Publication date: May 31, 2012Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Sheng-Long LEE, Chih-Kuang LIN, Chih-Ang CHUNG, Jing-Chie LIN, Yu-Chou TSAI, Che-Wei HSU
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Publication number: 20120132035Abstract: A lithium (Li)-based alloy and a preparation method thereof are disclosed, in which the lithium metal is wrapped by a metal foil with a higher melting point, followed by subjecting to multi-stage thermal treatment to cast alloy, thereby obtaining the Li-based alloy with high purity-Li.Type: ApplicationFiled: May 19, 2011Publication date: May 31, 2012Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Sheng-Long LEE, Chih-Kuang LIN, Chih-Ang CHUNG, Jing-Chie LIN, Yu-Chou TSAI, Che-Wei HSU
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Patent number: 8163267Abstract: In a method of synthesizing magnesium-cobalt pentahydride, a MgCo2 alloy is synthesized by completely reacting cobalt (Co) metal and excess magnesium (Mg) metal, followed by an isothermal evaporation casting process (IECP) for removing the residual magnesium metal. Then, the magnesium-cobalt alloy and another magnesium metal are ball-milled and hydrogenated to synthesize the magnesium-cobalt pentahydride (Mg2CoH5).Type: GrantFiled: July 21, 2011Date of Patent: April 24, 2012Assignee: National Central UniversityInventors: Sheng-Long Lee, Rong-Ruey Jeng, Che-Wei Hsu, Yu-Chou Tsai
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Publication number: 20110253524Abstract: An aluminum-scandium (Al—Sc) alloy film applied to vehicle lamps and a manufacturing method thereof are revealed. The Al—Sc alloy film contains a trace of scandium so that both temperature for grain refinement and temperature for recrystallization of the film are increased. This results in a fine and smooth surface of the Al—Sc alloy film and the Al—Sc alloy film has better optical reflectivity. Moreover, the Al—Sc alloy film has high recrystallization temperature and high adhesion strength. After high temperature annealing treatment, the Al—Sc alloy film still has higher corrosion resistance.Type: ApplicationFiled: June 27, 2011Publication date: October 20, 2011Inventors: Jing-Chie Lin, Hsueh-Lung Liao, Jian-Jhong Shen, Sheng-Long Lee
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Publication number: 20100285332Abstract: An aluminum-scandium (Al—Sc) alloy film applied to vehicle lamps and a manufacturing method thereof are revealed. The Al—Sc alloy film contains a trace of scandium so that both temperature for grain refinement and temperature for recrystallization of the film are increased. This results in a fine and smooth surface of the Al—Sc alloy film and the Al—Sc alloy film has better optical reflectivity. Moreover, the Al—Sc alloy film has high recrystallization temperature and high adhesion strength. After high temperature annealing treatment, the Al—Sc alloy film still has higher corrosion resistance.Type: ApplicationFiled: December 8, 2009Publication date: November 11, 2010Inventors: Jing-Chie Lin, Hsueh-Lung Liao, Jian-Jhong Shen, Sheng-Long Lee
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Patent number: 7828915Abstract: A method for making Mg(magnesium)-based intermetallic compound uses a thermal process during a melting process to produce largely the Mg-based intermetallic compound. The vapor pressure of Mg is high, thereby Mg is prone to be vaporized from a melt and a wrought solid alloy in the melting process of high temperature, for purifying the wrought Mg-based intermetallic compound. The method may simplify the process and devices for making the Mg-based intermetallic compound, and produce efficiently a larger of high purity Mg-based intermetallic compound.Type: GrantFiled: December 10, 2007Date of Patent: November 9, 2010Assignee: National Central UniversityInventors: Sheng-Long Lee, Jing-Chie Lin, Che-Wei Hsu, Cheng-Yu Chou, Yin-Chun Cheng, Chia-Wang Weng, Chien-Chang Chiang, Chien-Wei Chen
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Patent number: 7648598Abstract: A manufacturing method for an isothermal evaporation casting process is disclosed and to design the manufacturing method for the simple atmospheric casting. The present invention can melt the Mg—Ni alloy with the aspect of totally different melting points thereof, and the other elements can be added during melting simultaneously. Through the Mg—Ni alloy with a suitable weight ratio, the eutectic alloy of Mg/Mg2Ni and high purified ?-phase Mg2Ni can be made. Then adding other elements are to produce the composition of Mg/Ni/M. By way of the manufacturing method of the present invention, the melting equipment is simplified; and, through different manufacturing steps, the purposes of time-saving and low cost are reached; further that, a large amount of the eutectic alloy of Mg/Mg2Ni with different kinds of ratios of Mg, high purified ?-phase Mg2Ni, or the composition of Mg/Ni/M can be obtained.Type: GrantFiled: October 23, 2006Date of Patent: January 19, 2010Assignee: National Central UniversityInventors: Sheng-Long Lee, Ten-Fu Wu, Jing-Chie Lin, Che-Wei Hsu, Fu-Kai Hsu, Cheng-En Jiang
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Publication number: 20090116992Abstract: A method for making Mg(magnesium)-based intermetallic compound uses a thermal process during a melting process to produce largely the Mg-based intermetallic compound. The vapor pressure of Mg is high, thereby Mg is prone to be vaporized from a melt and a wrought solid alloy in the melting process of high temperature, for purifying the wrought Mg-based intermetallic compound. The method may simplify the process and devices for making the Mg-based intermetallic compound, and produce efficiently a larger of high purity Mg-based intermetallic compound.Type: ApplicationFiled: December 10, 2007Publication date: May 7, 2009Inventors: Sheng-Long Lee, Jing-Chie Lin, Che-Wei Hsu, Cheng-Yu Chou, Yin-Chun Cheng, Chia-Wang Weng, Chien-Chang Chiang, Chien-Wei Chen
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Publication number: 20090091130Abstract: This invention discloses a method and an apparatus of preventing a gas leak in a pipeline, and the characteristic of expansion occurred when a hydrogen storage material absorbs hydrogen gas is used for setting the hydrogen storage material in a joint between a first pipeline and a second pipeline, such that if hydrogen leaks at the joint, the hydrogen storage material will absorb hydrogen to expand, and the expansion pressure presses the joint to give a tighter connection, so as to achieve the effects of preventing and locking a leak, and compensating a deficiency of tightness due to an accumulated error occurred during the manufacture of the first pipeline and the second pipeline.Type: ApplicationFiled: October 25, 2007Publication date: April 9, 2009Inventors: Sheng-Long Lee, Jing-Chie Lin, Che-Wei Hsu, Yu-Chou Tsai, Fu-Kai Hsu
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Publication number: 20080305354Abstract: A filler composition for welding onto a substrate is composed of 82.5˜96.5 wt %, aluminum, 3.0˜10.0 wt % copper, 0.2˜1.5 wt % magnesium, 0.1˜1.5 wt % silver, 0.1˜2.0 wt % scandium, 0˜1.5 wt % zirconium, and 0˜1.0 wt % titanium, and can be welded with a high success rate to a substrate (such as an aluminum-copper alloy substrate) and avoiding a hot cracking phenomenon and a low welding strength, so as to achieve the effects of enhancing the yield rate and lowering the cost of a product.Type: ApplicationFiled: August 16, 2007Publication date: December 11, 2008Inventors: Sheng-Long Lee, Chih-Horng Chang, Jing-Chie Lin, Chin-Kui Lin, Meng-Syuan Doong, Kent-Yi Lee, Yu-Chou Tsai, Yu-Te Chen
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Publication number: 20080190244Abstract: The present invention provides a method for mass producing any metal alloy. After melting a metal mixture, a mixture of heating, soaking and/or cooling is processed to obtain the alloy even with a trace element added. The metal alloy made by the present invention thus has a high purity and a low cost.Type: ApplicationFiled: April 27, 2007Publication date: August 14, 2008Applicant: National Central UniversityInventors: Sheng-Long Lee, Jing-Chie Lin, Tien-Fu Wu, Che-Wei Hsu, Cheng-En Jiang, Jen-Hao Liu, Chun-Yu Lin, Yu-Chin Kao
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Publication number: 20080093046Abstract: A manufacturing method for an isothermal evaporation casting process is disclosed and to design the manufacturing method for the simple atmospheric casting. The present invention can melt the Mg—Ni alloy with the aspect of totally different melting points thereof, and the other elements can be added during melting simultaneously. Through the Mg—Ni alloy with a suitable weight ratio, the eutectic alloy of Mg/Mg2Ni and high purified ?-phase Mg2Ni can be made. Then adding other elements are to produce the composition of Mg/Ni/M. By way of the manufacturing method of the present invention, the melting equipment is simplified; and, through different manufacturing steps, the purposes of time-saving and low cost are reached; further that, a large amount of the eutectic alloy of Mg/Mg2Ni with different kinds of ratios of Mg, high purified ?-phase Mg2Ni, or the composition of Mg/Ni/M can be obtained.Type: ApplicationFiled: October 23, 2006Publication date: April 24, 2008Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Sheng-Long Lee, Ten-Fu Wu, Jing-Chie Lin, Che-Wei Hsu, Fu-Kai Hsu, Cheng-En Jiang
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Patent number: 5514202Abstract: A method for producing fine silver-palladium alloy powder includes the steps of: (A) preparing separately a silver nitrate solution and a palladium nitrate solution and mixing the solutions, and then adding a neutralizing and complexing agent to the mixed solutions to adjust the pH thereof to about 2.5-3.5, whereby a first mixture containing silver and palladium ions is obtained; (B) preparing a second mixture containing a reductant and a surfactant; (C) bringing the first mixture into contact with the second mixture at a reaction temperature of 15.degree.-50.degree. C. under stirring in order to permit the silver and palladium ions to be reduced and to coprecipitate so as to form silver-palladium alloy particles; and (D) recovering the coprecipitated silver-palladium alloy particles, thereby obtaining the fine silver-palladium alloy powder.Type: GrantFiled: December 20, 1994Date of Patent: May 7, 1996Assignee: National Science Council of R.O.C.Inventors: Jing-Chie Lin, Yung-Bao Deng, Sheng-Long Lee
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Patent number: 5413617Abstract: Silver powder with a controlled surface area is made by introducing a silver ion containing solution and a mixed solution containing reducing agents and surfactants into a low temperature tank of 5.degree.-20.degree. C. and holding for a period of 7-60 minutes, followed by introducing the resulting reaction solution into a high temperature tank and holding further. The rest potential of the reaction solution is monitored to determine the end point of the reaction.Type: GrantFiled: September 13, 1993Date of Patent: May 9, 1995Assignee: National Science CouncilInventors: Jing-Chie Lin, Jyuhn-Yih Wu, Sheng-Long Lee
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Patent number: 5384016Abstract: A process of recovering tungsten carbide from cemented tungsten carbide scraps by selective electrolysis is disclosed. A chelating agent is added to the electrolyte for complexing with tungsten ion to prevent passivation of tungsten carbide, and thus the dissolution rate of the cementing agent is increased.Type: GrantFiled: November 10, 1993Date of Patent: January 24, 1995Assignee: National Science CouncilInventors: Jing-Chie Lin, Jainn-Yuan Lin, Sheng-Long Lee