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公开(公告)号：US11217359B2
公开(公告)日：2022-01-04
申请号：US16634002
申请日：2018-07-24
Applicant: SENJU METAL INDUSTRY CO., LTD. , OSAKA UNIVERSITY
Inventor： Jinting Jiu , Minoru Ueshima , Katsuaki Suganuma , Wanli Li
Abstract: A method for synthesizing a copper-silver alloy includes an ink preparation step, a coating step, a crystal nucleus formation step and a crystal nucleus synthesis step. In the ink preparation step, a copper salt particle, an amine-based solvent, and a silver salt particle are mixed, thereby preparing a copper-silver ink. In the coating step, a member to be coated is coated with the copper-silver ink. In the crystal nucleus formation step, at least one of a crystal nucleus of copper having a crystal grain diameter of 0.2 μm or less and a crystal nucleus of silver having a crystal grain diameter of 0.2 μm or less is formed from the copper-silver ink. In the crystal nucleus synthesis step, the crystal nucleus of copper and the crystal nucleus of silver are synthesized.
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公开(公告)号：US12119131B2
公开(公告)日：2024-10-15
申请号：US17397500
申请日：2021-08-09
Applicant: SENJU METAL INDUSTRY CO., LTD. , OSAKA UNIVERSITY
Inventor： Jinting Jiu , Minoru Ueshima , Katsuaki Suganuma , Wanli Li
CPC classification number: H01B1/026 , C09D11/037 , C09D11/52 , C22C1/00 , C22C5/08 , C22C9/00 , C23C18/08 , C23C18/143
Abstract: A method for synthesizing a copper-silver alloy includes an ink preparation step, a coating step, a crystal nucleus formation step and a crystal nucleus synthesis step. In the ink preparation step, a copper salt particle, an amine-based solvent, and a silver salt particle are mixed, thereby preparing a copper-silver ink. In the coating step, a member to be coated is coated with the copper-silver ink. In the crystal nucleus formation step, at least one of a crystal nucleus of copper having a crystal grain diameter of 0.2 μm or less and a crystal nucleus of silver having a crystal grain diameter of 0.2 μm or less is formed from the copper-silver ink. In the crystal nucleus synthesis step, the crystal nucleus of copper and the crystal nucleus of silver are synthesized.
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公开(公告)号：US11278955B2
公开(公告)日：2022-03-22
申请号：US17312834
申请日：2020-09-30
Applicant: SENJU METAL INDUSTRY CO., LTD.
Inventor： Jinting Jiu , Yoshie Tachibana
Abstract: An object of the present invention is to provide an electrically conductive paste having excellent bonding strength when bonded to an electronic substrate and the like, a laminated body, and a method for bonding a Cu substrate or Cu electrode to an electrical conductor.
An electrically conductive paste comprising:
a flake-like silver powder A having a particle size in the range of 1 μm or more and 15 μm or less and having a median diameter D50 of 2 μm or more and 5 μm or less;
a silver powder B having a particle size in the range of 25 μm or more and 100 μm or less and having a median diameter D50 of 30 μm or more and 40 μm or less;
a silver powder C having a particle size in the range of 10 nm or more and 190 nm or less and having a median diameter D50 of 50 nm or more and 150 nm or less; and
a solvent,
wherein the content of the silver powder C is more than 5.0 parts by mass and less than 90.0 parts by mass based on 100 parts by mass in total of the flake-like silver powder A, the silver powder B, and the silver powder C.-
Patent Agency Ranking
公开(公告)号：US11710580B2
公开(公告)日：2023-07-25
申请号：US17258271
申请日：2019-03-20
Applicant: SENJU METAL INDUSTRY CO., LTD.
Inventor： Jinting Jiu , Tetsu Takemasa , Junko Seino
CPC classification number: H01B1/02 , B22F1/052 , B22F1/107 , H01B1/22 , H05K1/092 , B22F1/065 , B22F1/068 , B22F1/10 , B22F2301/255 , B22F2999/00 , B22F1/065 , B22F1/068 , B22F2207/13 , C22C1/0466 , B22F1/052
Abstract: An object of the present invention is to provide an electrically conductive paste and a sintered body thereof having a low electric resistance value and excellent electrical conductivity when made into a sintered body.
An electrically conductive paste comprising: a flake-like silver powder having a median diameter D50 of 15 μm or less; a silver powder having a median diameter D50 of 25 μm or more; and a solvent,
wherein the content of the flake-like silver powder is 15 to 70 parts by mass and the content of the silver powder having a median diameter D50 of 25 μm or more is 30 to 85 parts by mass based on 100 parts by mass in total of the flake-like silver powder and the silver powder having a median diameter D50 of 25 μm or more.-
公开(公告)号：US10099291B2
公开(公告)日：2018-10-16
申请号：US14893329
申请日：2014-05-26
Applicant: SHOWA DENKO K.K. , OSAKA UNIVERSITY
Inventor： Katsuaki Suganuma , Jinting Jiu , Masaya Nogi , Tohru Sugahara , Teppei Araki , Hiroshi Uchida , Hideki Ohata , Masanao Hara , Eri Okazaki
Abstract: Provided are a metal nanowire production method capable of producing long and thin metal nanowires, and metal nanowires produced thereby. A metal nanowire production method comprising, a step for preparing a solution containing a metal salt, a polymer, at least one selected from a group consisting of halides, sulfides, carbonates, and sulfates, and an aliphatic alcohol, and a step for heating and reacting the solution at the temperature of 100° C. to 250° C. for 10 minutes or more while maintaining a practical shear stress applied to the solution at 10 mPa·m or less, wherein, during the heating and reacting step, ultraviolet-visible absorption spectrum change of the solution is measured, and a reaction time is controlled on the basis of the ultraviolet-visible absorption spectrum information.
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公开(公告)号：US10651143B2
公开(公告)日：2020-05-12
申请号：US16097050
申请日：2017-04-28
Applicant: SHARP KABUSHIKI KAISHA , OSAKA UNIVERSITY
Inventor： Tomotoshi Satoh , Hiroya Sato , Katsuaki Suganuma , Aiji Suetake , Shijo Nagao , Jinting Jiu , Seiichiro Kihara
Abstract: Provided is an electrode like a protruding electrode that is self-standing on a substrate. A conductive paste (202) contains a conductive powder, an alcoholic liquid component, and no adhesives. The conductive powder contains conductive particles having a thickness of 0.05 μm or more and 0.1 μm or less and a representative length of 5 μm or more and 10 μm or less, the representative length being a maximum diameter in a plane perpendicular to the direction of the thickness. The weight percentage of the alcoholic liquid component relative to the conductive paste is 8% or more and 20% or less.
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公开(公告)号：US10201852B2
公开(公告)日：2019-02-12
申请号：US15318903
申请日：2015-06-16
Applicant: OSAKA UNIVERSITY
Inventor： Katsuaki Suganuma , Jinting Jiu
IPC: B22F1/00 , B22F9/24 , H01B1/00 , H01B1/22 , H01B5/00 , H01B13/00 , H05K1/09 , C09D7/40 , C09D5/24
Abstract: A silver particle synthesizing method includes reducing a dispersant from first silver particles each covered with the dispersant to obtain second silver particles. The method further includes synthesizing third silver particles each having a larger particle diameter than the second silver particles by causing a reaction between a silver compound and a reductant in a liquid phase containing the second silver particles.
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公开(公告)号：US20150030783A1
公开(公告)日：2015-01-29
申请号：US14383170
申请日：2013-03-08
Applicant: SHOWA DENKO K.K. , OSAKA UNIVERSITY
Inventor： Katsuaki Suganuma , Masaya Nogi , Jinting Jiu , Tohru Sugahara , Hiroshi Uchida , Kenji Shinozaki
CPC classification number: H01B13/003 , H01B13/0026 , H05K1/0306 , H05K1/097 , H05K3/10 , H05K3/106 , H05K2201/0108 , H05K2201/026
Abstract: A method for producing a transparent conductive pattern having an improved conductivity by pulse light irradiation. A transparent conductive pattern is produced by coating and drying a dispersion liquid having metal nanowires dispersed therein on a substrate, to deposit the metal nanowires, and irradiating pulsed light having a pulse width of 20 microseconds to 50 milliseconds to the metal nanowires deposited on the substrate, to thereby join intersections of the metal nanowires.
Abstract translation: 一种通过脉冲光照射产生具有改善的导电性的透明导电图案的方法。 通过将分散在其中的金属纳米线的分散液涂布并干燥在基板上，沉积金属纳米线，并将脉冲宽度为20微秒至50毫秒的脉冲光照射到沉积在基板上的金属纳米线，制成透明导电图案 从而连接金属纳米线的交点。
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