公开(公告)号：US20160121403A1

公开(公告)日：2016-05-05

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

IPC: B22F9/24 ,  B22F1/00

CPC classification number: B22F9/24 ,  B22F1/0025 ,  B22F1/004 ,  B22F1/0044 ,  B22F2009/245 ,  B22F2301/255 ,  B22F2304/05 ,  B82Y30/00 ,  B82Y40/00

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.

Abstract translation: 提供能够生产长而薄的金属纳米线的金属纳米线制造方法，由此制造金属纳米线。 一种金属纳米线制造方法，其特征在于，包括：制备含有金属盐，聚合物，选自卤化物，硫化物，碳酸盐和硫酸盐中的至少一种的溶液和脂肪族醇的工序， 使溶液在100℃至250℃的温度下反应10分钟以上，同时保持施加到10mPa·m以下的溶液的实际剪切应力，其中在加热和反应步骤期间， 测量溶液的可见吸收光谱变化，并且基于紫外 - 可见吸收光谱信息控制反应时间。

公开(公告)号：US20190157229A1

公开(公告)日：2019-05-23

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

IPC: H01L23/00

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.

公开(公告)号：US20210366627A1

公开(公告)日：2021-11-25

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

IPC: H01B1/02 ,  C23C18/14 ,  C09D11/037 ,  C09D11/52 ,  C22C1/00 ,  C22C5/08 ,  C22C9/00 ,  C23C18/08

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.

公开(公告)号：US20180104747A1

公开(公告)日：2018-04-19

申请号：US15555094

申请日：2016-03-04

Applicant: OSAKA UNIVERSITY

Inventor： Katsuaki SUGANUMA ,  Jinting JIU

IPC: B22F9/24 ,  B23K35/02 ,  B23K35/30

CPC classification number: B22F9/24 ,  B22F1/0014 ,  B22F2301/10 ,  B23K35/025 ,  B23K35/302 ,  H01B1/02 ,  H01B1/22

Abstract: A method for producing copper particles includes a preparation step and a heating step. In the preparation step, a copper compound, a salt of a main group metal, and a polyhydric alcohol are prepared. In the heating step, a mixture of the copper compound, the salt of the main group metal, and the polyhydric alcohol is heated. Preferably, the main group metal is at least one selected from the group consisting of lithium, beryllium, sodium, magnesium, aluminum, potassium, calcium, zinc, gallium, germanium, rubidium, strontium, cadmium, indium, tin, antimony, cesium, and barium.

公开(公告)号：US20170144220A1

公开(公告)日：2017-05-25

申请号：US15318903

申请日：2015-06-16

Applicant: OSAKA UNIVERSITY

Inventor： Katsuaki SUGANUMA ,  Jinting JIU

IPC: B22F1/00 ,  H01B1/22 ,  C09D7/12 ,  H05K1/09 ,  B22F9/24 ,  C09D5/24

CPC classification number: B22F1/0022 ,  B22F1/00 ,  B22F1/0014 ,  B22F9/24 ,  B22F2009/245 ,  B22F2301/255 ,  B22F2304/054 ,  B22F2304/056 ,  B22F2304/058 ,  B22F2304/10 ,  B22F2998/10 ,  C09D5/24 ,  C09D7/68 ,  C09D7/69 ,  H01B1/00 ,  H01B1/22 ,  H01B5/00 ,  H01B13/00 ,  H05K1/09 ,  H05K1/092 ,  H05K2201/0203

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.

公开(公告)号：US20200381136A1

公开(公告)日：2020-12-03

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

IPC: H01B1/02 ,  C22C9/00 ,  C22C5/08 ,  C22C1/00 ,  C23C18/08 ,  C23C18/14 ,  C09D11/52 ,  C09D11/037

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.

公开(公告)号：US20200086391A1

公开(公告)日：2020-03-19

申请号：US15746902

申请日：2016-07-22

Applicant: OSAKA UNIVERSITY

Inventor： Katsuaki SUGANUMA ,  Jinting JIU

IPC: B22F9/24 ,  B22F1/00 ,  C09J1/00 ,  C09J9/02 ,  H01B1/22

Abstract: First, a liquid mixture is obtained by mixing at least a silver compound, a reductant, and a dispersant (S1). Then, the liquid mixture is heated to cause reaction between the silver compound and the reductant and generate first silver particles each having a sheet-like or plate-like shape and second silver particles each having a spherical shape or a shape closer to a sphere than the first silver particles and a particle diameter smaller than a maximum value of a length of a side of each of the first silver particles (S2).