Patents by Inventor Yu-Hsien Chou
Yu-Hsien Chou 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: 20240133000Abstract: An aluminum alloy material includes 1.0 wt % to 13.0 wt % of Si, 0.2 wt % to 1.4 wt % of Fe, 0.2 wt % to 0.8 wt % of Ni, and the remainder being Al and inevitable impurities. The aluminum alloy material can be 3D printed or die-casted to form an aluminum alloy object with a high thermal conductivity.Type: ApplicationFiled: November 15, 2022Publication date: April 25, 2024Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Hsien CHOU, Chi-San CHEN
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Publication number: 20240120419Abstract: A lateral diffusion metal-oxide semiconductor (LDMOS) device includes a first gate structure and a second gate structure extending along a first direction on a substrate, a first source region extending along the first direction on one side of the first gate structure, a second source region extending along the first direction on one side of the second gate structure, a drain region extending along the first direction between the first gate structure and the second gate structure, a guard ring surrounding the first gate structure and the second gate structure, and a shallow trench isolation (STI) surrounding the guard ring.Type: ApplicationFiled: December 5, 2023Publication date: April 11, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Ling-Chun Chou, Yu-Hung Chang, Kun-Hsien Lee
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Publication number: 20240105839Abstract: A lateral diffusion metal-oxide semiconductor (LDMOS) device includes a first gate structure and a second gate structure extending along a first direction on a substrate, a first source region extending along the first direction on one side of the first gate structure, a second source region extending along the first direction on one side of the second gate structure, a drain region extending along the first direction between the first gate structure and the second gate structure, a guard ring surrounding the first gate structure and the second gate structure, and a shallow trench isolation (STI) surrounding the guard ring.Type: ApplicationFiled: December 5, 2023Publication date: March 28, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Ling-Chun Chou, Yu-Hung Chang, Kun-Hsien Lee
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Patent number: 11840747Abstract: An aluminum alloy material includes 1.2 wt % to 3.0 wt % of Si, 0.1 wt % to 0.8 wt % of Mg, 0.2 wt % to 2.0 wt % of Cu, 0.5 wt % to 2.5 wt % of Zn, 0.2 wt % to 2.0 wt % of Ti, and the remainder being Al and inevitable impurities. The powder of the aluminum alloy material can be processed to form an aluminum alloy object. The aluminum alloy object may further include an anodized film on its surface.Type: GrantFiled: November 28, 2022Date of Patent: December 12, 2023Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Hsien Chou, Chi-San Chen, Heng-Yi Tsai
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Publication number: 20230151460Abstract: An aluminum alloy powder for laser laminated manufacturing includes Si: 2.0-4.5 wt %; Mg: 0.1-1.3 wt %; Fe: 0.07-0.65 wt %; Cu: 0.35 wt % or less; Cr: 0.02-0.32 wt %; Zn: 0.23 wt % or less; Ti: 0.23 wt % or less; Mn: 0.13 wt % or less; and the rest is aluminum. The aluminum alloy powder further includes inevitable impurities.Type: ApplicationFiled: December 14, 2021Publication date: May 18, 2023Applicant: Industrial Technology Research InstituteInventors: Yu-Hsien Chou, Chi-San Chen, Heng-Yi Tsai, Chang-Ching Chen
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Patent number: 11504763Abstract: An aluminum alloy wheel for a vehicle is provided, which includes: a wheel central portion, a rim portion, and a plurality of radial elements, wherein the aluminum alloy wheel is processed by centrifugal casting and forging to form a central portion with a morphology exhibiting a grain size variation with decreasing gradient in a lateral direction from an inner side of the wheel central portion to an outer side thereof.Type: GrantFiled: December 29, 2020Date of Patent: November 22, 2022Assignee: Industrial Technology Research InstituteInventors: Yu-Hsien Chou, Chi-San Chen, Chih-Chao Yang, Chang-Ching Chen
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Publication number: 20220161313Abstract: An aluminum alloy wheel for a vehicle is provided, which includes: a wheel central portion, a rim portion, and a plurality of radial elements, wherein the aluminum alloy wheel is processed by centrifugal casting and forging to form a central portion with a morphology exhibiting a grain size variation with decreasing gradient in a lateral direction from an inner side of the wheel central portion to an outer side thereof.Type: ApplicationFiled: December 29, 2020Publication date: May 26, 2022Applicant: Industrial Technology Research InstituteInventors: Yu-Hsien Chou, Chi-San Chen, Chih-Chao Yang, Chang-Ching Chen
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Patent number: 11104981Abstract: An aluminum-cobalt-chromium-iron-nickel-silicon alloy has atomic percentages of 4-12 at % aluminum, 15-25 at % cobalt, 25-35 at % chromium, 4-8 at % iron, 15-25 at % nickel, 10-25 at % silicon, wherein the atomic percentage of aluminum plus silicon is between 18-32 at %. The disclosure applies the alloy design to develop a low-aluminum Al—Co—Cr—Fe—Ni—Si alloy composition, and has high-temperature hardness, high wear resistance, corrosion resistance and high temperature oxidation resistance.Type: GrantFiled: February 6, 2020Date of Patent: August 31, 2021Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chi-San Chen, Yu-Hsien Chou, Chao-Ming Chen
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Publication number: 20210156007Abstract: An aluminum-cobalt-chromium-iron-nickel-silicon alloy has atomic percentages of 4-12 at % aluminum, 15-25 at % cobalt, 25-35 at % chromium, 4-8 at % iron, 15-25 at % nickel, 10-25 at % silicon, wherein the atomic percentage of aluminum plus silicon is between 18-32 at %. The disclosure applies the alloy design to develop a low-aluminum Al—Co—Cr—Fe—Ni—Si alloy composition, and has high-temperature hardness, high wear resistance, corrosion resistance and high temperature oxidation resistance.Type: ApplicationFiled: February 6, 2020Publication date: May 27, 2021Inventors: CHI-SAN CHEN, YU-HSIEN CHOU, CHAO-MING CHEN
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Publication number: 20200199714Abstract: A metal-ceramic composite material and a method for forming the same are provided. The metal-ceramic composite material includes a metal body, a plurality of metal oxide nanoparticles and a plurality of ceramic particles. The metal body includes a metal material having a first surface energy. The metal oxide nanoparticles and the ceramic particles are dispersed in the metal body. The ceramic particles have a second surface energy that is higher than the first surface energy.Type: ApplicationFiled: December 24, 2018Publication date: June 25, 2020Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chi-San CHEN, Chih-Chao YANG, Chih-Jung WENG, Yu-Hsien CHOU, Li-Shing CHOU, Heng-Yi TSAI
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Publication number: 20180133795Abstract: Disclosed is an low carbon steel alloy composition, including 98.5 to 99.7 parts by weight of Fe, 0.1 to 0.3 parts by weight of C, 0.1 to 0.6 parts by weight of Si, and 0.15-0.45 parts by weight of Cr. The low carbon steel alloy composition can be sprayed by gas to form powders, which are sintered by laser additive manufacturing to form a sintered object.Type: ApplicationFiled: December 29, 2016Publication date: May 17, 2018Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chih-Jung WENG, Chih-Chao YANG, Yu-Hsien CHOU, Shun-Huei WANG
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Publication number: 20160145722Abstract: An alloy casting material is provided, which includes 97 to 99 parts by weight of Al and Si, 0.25 to 0.4 parts by weight of Cu, and 0.15 to 1.35 parts by weight of a combination of at least two of Mg, Ni, and Ti. The alloy casting material can be sprayed by gas to form powders, which are melted by laser-additive manufacturing to form a melted object. The melted object can be processed by an ageing heat treatment to complete an alloy object.Type: ApplicationFiled: September 29, 2015Publication date: May 26, 2016Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Hsien CHOU, Chih-Chao YANG, Yen-Yu HOU, Chih-Jung WENG, Chi-San CHEN
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Patent number: 9157136Abstract: A multi-element alloy material consists of Al, Cr, Fe, Mn, Mo and Ni. From an outer surface to a center of the multi-element alloy material exhibits a hardness gradient from high to low. A method of manufacturing a multi-element alloy material with hardness gradient includes melting and casting metals with a metal combination of Al, Cr, Fe, Mn, Mo and Ni to form an alloy body, subjecting the alloy body to a homogenization treatment, and subjecting the homogenized alloy body to a high temperature treatment to perform precipitation hardening at surface of the alloy body by heating, thereby forming a multi-element alloy material having hardness gradient.Type: GrantFiled: December 26, 2012Date of Patent: October 13, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Hsien Chou, Chih-Chao Yang
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Publication number: 20140150932Abstract: A multi-element alloy material consists of Al, Cr, Fe, Mn, Mo and Ni. From an outer surface to a center of the multi-element alloy material exhibits a hardness gradient from high to low. A method of manufacturing a multi-element alloy material with hardness gradient includes melting and casting metals with a metal combination of Al, Cr, Fe, Mn, Mo and Ni to form an alloy body, subjecting the alloy body to a homogenization treatment, and subjecting the homogenized alloy body to a high temperature treatment to perform precipitation hardening at surface of the alloy body by heating, thereby forming a multi-element alloy material having hardness gradient.Type: ApplicationFiled: December 26, 2012Publication date: June 5, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Hsien Chou, Chih-Chao Yang
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Publication number: 20130126344Abstract: The present disclosure provides an IGZO nanoparticle, including an InGaZnO4 crystal structure and a trace element, wherein the InGaZnO4 crystal structure has a formula represented by formula: x(In2O3)?y(Ga2O3)?z(ZnO), wherein x:y:z=1:1:0.5-2, and the trace element includes boron and/or aluminum, which is present in an amount of about 100-1000 ppm. The present disclosure also provides a manufacturing method for the IGZO nanoparticle and a sputter target containing the IGZO particles.Type: ApplicationFiled: March 2, 2012Publication date: May 23, 2013Inventors: Lik-Hang CHAU, Yu-Hsien CHOU, Chih-Chao YANG
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Publication number: 20090309481Abstract: The present invention relates to methods for fabricating a cathode emitter and a zinc oxide anode for a field emission device to improve the adhesion between emitters and a substrate and enhance the luminous efficiency of a zinc oxide thin film so that the disclosed methods can be applied in displays and lamps. In comparison to a conventional method for fabricating a field emission device, the method according to the present invention can reduce the cost and time for manufacture and is suitable for fabricating big-sized products. In addition, the present invention further discloses a field emission device comprising a zinc oxide/nano carbon material cathode, a zinc oxide anode and a spacer.Type: ApplicationFiled: February 18, 2009Publication date: December 17, 2009Applicant: National Defense UniversityInventors: Yu-Hsien CHOU, Yuh SUNG, Ming-Der GER, Yih-Ming LIU, Chun-Wei KUO, Jun-Yu YEH, Yun-Chih FAN
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Publication number: 20080248430Abstract: A nano-carbon material field emission cathode plate is prepared by an oxidation-reduction reaction, which includes immersing a substrate having a first metal layer thereon in a solution of a second metal salt with a nano-carbon material dispersed therein. A difference between the two standard redox potentials of the first metal and the second metal is so great that ions of the second metal in the solution are reduced to elemental metal while the first metal is oxidized, and thus a layer of the second metal is formed on the first metal layer with the nano-carbon material partially embedded in the second metal layer.Type: ApplicationFiled: July 18, 2007Publication date: October 9, 2008Applicant: NATIONAL DEFENSE UNIVERSITYInventors: Yih-Ming Liu, Yuh Sung, Ming-Der Ger, Yun-Chih Fan, Yu-Hsien Chou, Chun-Tin Lin
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Publication number: 20060228489Abstract: The present invention discloses a method for forming a metallic microstructure on a patterned surface of a substrate by a nonisothermal deposition (NTID) in an electroless plating solution. The substrate is immersed in the solution being heated by a heating device mounted on a bottom of an electroless plating reactor while the heated solution being cooled by a cooling device provided in the reactor, and thus a seed layer is formed the patterned surface of the substrate. The substrate is then immersed in an electroless plating solution with a back surface of the substrate lying on the bottom of the reactor, so that the exposed seed layer is thickened to form the metallic microstructure.Type: ApplicationFiled: October 11, 2005Publication date: October 12, 2006Applicant: CHUNG CHENG INSTITUTE OF TECHNOLOGY, NATIONAL DEFENSE UNIVERSITYInventors: Yuh Sung, Ming-Der Ger, Yu-Hsien Chou, Jinn-Luh Ou
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Publication number: 20060228488Abstract: A method for depositing a copper layer on a substrate is disclosed. The method is achieved by heating a plating solution located between a heating device and a target substrate. Through the process illustrated above, metal nano-particles come out from the plating solution and deposit on a substrate with high aspect ratio. Surfactant can be selectively added for obtaining ultra-thin continuous film, void-free copper connectors. Furthermore, a copper film would achieve a preferred (111) crystallization orientation.Type: ApplicationFiled: July 1, 2005Publication date: October 12, 2006Applicant: Chung Cheng Institute of Technology, National Defense UniversityInventors: Yuh Sung, Ming-Der Ger, Yu-Hsien Chou, Chi-Liang Cheng
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Patent number: 6773760Abstract: A method for metallizing a surface of substrates is disclosed. Particularly, nonhomogeneous heating deposition occurs by setting the surface and the heater in an electroless plating reactor at different temperatures. Moreover, an adjustable gap is defined between the substrate being metalized and heating source board. The deposit can securely adhere to the surface of the substrate for gap creates and activates metallic nanoparticles, which possess higher activity and bonding strength to the surface. Accordingly, metallization of the surface of the substrate can be easily achieved without using precious metals and carcinogenic materials.Type: GrantFiled: April 28, 2003Date of Patent: August 10, 2004Inventors: Yuh Sung, Ming-Der Ger, Yu-Hsien Chou, Bing-Joe Hwang