公开(公告)号：US20230113633A1

公开(公告)日：2023-04-13

申请号：US18081322

申请日：2022-12-14

Applicant: TANAKA KIKINZOKU KOGYO K.K. ,  TOKUSHIMA UNIVERSITY

Inventor： Michimasa OKUBO ,  Kenji GOTO ,  Kunihiro TANAKA ,  Kojiro SHIRAISHI ,  Kunihiro SHIMA ,  Yuya KATO ,  Kenichi HAMADA ,  Eiichi HONDA ,  Emi TAKEGAWA

IPC: C22C5/02 ,  A61L29/02 ,  A61L31/02 ,  C22F1/14

Abstract: The present invention relates to a medical Au-Pt-Pd alloy including Au, Pt,Pd, and inevitable impurities. The Au-Pt-Pd alloy has an alloy compositioninside a polygon (A1-A2-A3-A4) surrounded by straight lines connected at pointA1 (Au: 53 atom%, Pt: 4 atom%, and Pd: 43 atom%), point A2 (Au: 70 atom%,Pt: 4 atom%, and Pd: 26 atom%), point A3 (Au: 69.9 atom%, Pt: 30 atom%, and Pd: 0.1 atom%), and point A4 (Au: 49.9 atom%, Pt: 50 atom%, and Pd: 0.1 atom%) in a Au-Pt-Pd ternary state diagram. In a metal structure of the alloy, at least one of a Au-rich phase and a Pt-rich phase is distributed, and the total of the area ratio of the Au-rich phase and the area ratio of the Pt-rich phase is 1.5% or more and 25.4% or less.

公开(公告)号：US20220213576A1

公开(公告)日：2022-07-07

申请号：US17607397

申请日：2020-09-24

Applicant: TANAKA KIKINZOKU KOGYO K.K. ,  TOKUSHIMA UNIVERSITY

Inventor： Michimasa OKUBO ,  Kenji GOTO ,  Kunihiro TANAKA ,  Kojiro SHIRAISHI ,  Kunihiro SHIMA ,  Yuya KATO ,  Kenichi HAMADA ,  Eiichi HONDA ,  Emi TAKEGAWA

IPC: C22C5/02 ,  C22C1/02

Abstract: The present invention relates to a medical Au—Pt—Pd alloy including Au, Pt, Pd, and inevitable impurities. The alloy has an alloy composition inside a polygon (A1-A2-A3-A4-A5-A6) surrounded by straight lines connected at point A1 (Au: 37.9 atom %, Pt: 0.1 atom %, and Pd: 62 atom %), point A2 (Au: 79.9 atom %, Pt: 0.1 atom %, and Pd: 20 atom %), point A3 (Au: 79.9 atom %, Pt: 20 atom %, and Pd: 0.1 atom %), point A4 (Au: 69.9 atom %, Pt: 30 atom %, and Pd: 0.1 atom %), point A5 (Au: 49 atom %, Pt: 30 atom %, and Pd: 21 atom %), and point A6 (Au: 39 atom %, Pt: 40 atom %, and Pd: 21 atom %) in a Au—Pt—Pd ternary state diagram. The metal structure of the alloy is optimized, and the metal structure is close to a single-phase structure, and has little precipitation of a Au-rich phase and a Pt-rich phase different in composition from a mother phase.

公开(公告)号：US20160367729A1

公开(公告)日：2016-12-22

申请号：US14898794

申请日：2014-01-30

Applicant: TANAKA KIKINZOKU KOGYO K.K. ,  KYOTO UNIVERSITY

Inventor： Kunihiro SHIMA ,  Kenji GOTO ,  Yasushi MASAHIRO ,  Asaka UENO ,  Hiroo IWATA ,  Ryusuke NAKAI ,  Tomonobu KODAMA

IPC: A61L29/02 ,  C22C1/02 ,  B22D21/00 ,  C22F1/14 ,  B22D7/00 ,  A61L31/02 ,  C22C5/02

CPC classification number: A61L29/02 ,  A61L31/022 ,  B22D7/005 ,  B22D21/005 ,  C22C1/02 ,  C22C5/02 ,  C22F1/00 ,  C22F1/14

Abstract: The present invention is an alloy for medical use including an Au—Pt alloy, containing 34 to 36 mass % of Pt with the balance being Au, and having an α-phase single structure in which a ratio of a peak intensity (X) of a Pt (111) plane to a peak intensity (Y) of an Au (111) plane (X/Y) is 0.01 or less in an X-ray diffraction analysis. The alloy can be produced in such a manner that after the Au—Pt alloy ingot is molten and cast, cold working and a heat treatment for homogenization are performed at least two times on the molten and cast alloy. The alloy of the present invention is an artifact-free material that exhibits excellent compatibility with a magnetic field environment such as an MRI and has magnetic susceptibility of ±4 ppm with respect to that of water.

Abstract translation: 本发明是一种医疗用合金，其包括Au-Pt合金，其含有34〜36质量％的Pt，余量为Au，具有α相单结构，其中，峰强度（X） 在X射线衍射分析中，Au（111）面（X / Y）的Pt（111）面至峰强度（Y）为0.01以下。 该合金可以以这样的方式制造：在熔融和铸造Au-Pt合金锭之后，对熔融和铸造合金进行至少两次的冷加工和用于均化的热处理。 本发明的合金是与MRI等磁场环境相容性好的无伪影物质，相对于水的磁化率为±4ppm。

公开(公告)号：US20230250513A1

公开(公告)日：2023-08-10

申请号：US17982092

申请日：2022-11-07

Applicant: TANAKA KIKINZOKU KOGYO K.K.

Inventor： Takeshi FUSE ,  Kunihiro SHIMA ,  Takeyuki SAGAE ,  Shinji KOUNO

IPC: C22C5/04 ,  C22C30/02 ,  C22C30/04 ,  C22C30/06 ,  C22F1/14

CPC classification number: C22C5/04 ,  C22C30/02 ,  C22C30/04 ,  C22C30/06 ,  C22F1/14

Abstract: A probe pin material including a Ag—Pd—Cu-based alloy essentially including Ag, Pd and Cu, B as a first additive element, and at least any element of Zn, Bi and Sn, as a second additive element. A concentration of the first additive element is 0.1 mass % or more and 1.5 mass % or less, and a concentration of the second additive element is 0.1 mass % or more and 1.0 mass % or less. A Ag concentration, a Pd concentration and a Cu concentration in the Ag—Pd—Cu-based alloy are required as follows: a Ag concentration (SAg), a Pd concentration (SPd) and a Cu concentration (SCu) converted as given that a Ag—Pd—Cu ternary alloy is formed from only such three elements all fall within a predetermined range in a Ag—Pd—Cu ternary system phase diagram. The probe pin material is excellent in resistance value and hardness/wear resistance, and also is enhanced in bending resistance.

公开(公告)号：US20220017996A1

公开(公告)日：2022-01-20

申请号：US17295778

申请日：2019-11-18

Applicant: TANAKA KIKINZOKU KOGYO K.K.

Inventor： Shubham YADAV ,  Yuya KATO ,  Kenji GOTO ,  Kunihiro SHIMA

IPC: C22C19/07 ,  A61L31/02

Abstract: The present invention relates to an alloy for medical use, including Pt, Co, Cr, Ni, and Mo. The alloy includes 10 atom % or more and 30 atom % or less of Pt, 20 atom % or more and 31 atom % or less of Cr, 5 atom % or more and 24 atom % or less of Ni, 4 atom % or more and 8 atom % or less of Mo, the balance Co, and unavoidable impurities, and a ratio of the Ni content (CNi) to the Pt content (CPt), CNi/CPt is 1.5 or less. The present invention can be applied to various kinds of devices for medical use, such as catheter, embolic coils, and guide wires, in addition to stents such as flow-diverter stents.

公开(公告)号：US20210320480A1

公开(公告)日：2021-10-14

申请号：US17273685

申请日：2019-09-06

Applicant: TANAKA KIKINZOKU KOGYO K.K.

Inventor： Yuya SAITO ,  Kunihiro SHIMA ,  Shinsuke MANO

IPC: H01T13/39 ,  H01T21/02

Abstract: The present invention discloses a spark plug electrode material including a substrate formed of Ir or Ir alloy, and an antioxidant film covering a surface of the substrate. Here, an underlying layer formed of Au is formed on a surface of the substrate formed of Ir or Ir alloy, and on the underlying layer, a Ni film having a thickness of 3.0 μm or more and 8.0 μm or less is formed as an antioxidant film. The Ni film turns into an antioxidant film formed of Ni oxide in an oxidizing atmosphere at 500° C. or higher. Owing to the antioxidant film, the spark plug electrode material of the present invention has an excellent high-temperature oxidation property.

公开(公告)号：US20170029927A1

公开(公告)日：2017-02-02

申请号：US15106508

申请日：2014-01-30

Applicant: TANAKA KIKINZOKU KOGYO K.K. ,  KYOTO UNIVERSITY

Inventor： Kunihiro SHIMA ,  Kenji GOTO ,  Yasushi MASAHIRO ,  Asaka UENO ,  Hiroo IWATA ,  Ryusuke NAKAI ,  Tomonobu KODAMA

IPC: C22F1/14 ,  C22C5/02

CPC classification number: C22F1/14 ,  C22C5/02

Abstract: The present invention provides an alloy for medical use including an Au—Pt alloy, in which the Au—Pt alloy has a Pt concentration of 24 mass % or more and less than 34 mass % with the balance being Au, and has at least a material structure in which a Pt-rich phase having a Pt concentration higher than that of an α-phase is distributed in an α-phase matrix, the Pt-rich phase has a Pt concentration that is 1.2 to 3.8 times the Pt concentration of the α-phase, and the Pt-rich phase has an area ratio of 1 to 22% in any cross-section. This alloy is an artifact-free alloy material that exhibits excellent compatibility with a magnetic field environment such as an MRI and has magnetic susceptibility of ±4 ppm with respect to magnetic susceptibility of water.

Abstract translation: 本发明提供一种医疗用合金，其包括Au-Pt合金，其中Au-Pt合金的Pt浓度为24质量％以上且小于34质量％，余量为Au，并且至少具有 其中Pt浓度高于α相的Pt富集相分布在α相基质中的富Pt相的Pt浓度为Pt浓度的1.2〜3.8倍 α相，并且富Pt相在任何横截面中具有1至22％的面积比。 该合金是与MRI等磁场环境优异的相容性的无伪影合金材料，相对于水的磁化率具有±4ppm的磁化率。

公开(公告)号：US20160163425A1

公开(公告)日：2016-06-09

申请号：US14907893

申请日：2014-07-22

Applicant: TANAKA KIKINZOKU KOGYO K.K.

Inventor： Naoji KASHIMA ,  Tomonori WATANABE ,  Shigeo NAGAYA ,  Kunihiro SHIMA ,  Shuichi KUBOTA ,  Ryosuke SUGANUMA

IPC: H01B12/06 ,  C30B29/02 ,  C30B29/22 ,  C30B19/12

CPC classification number: H01B12/06 ,  C30B19/12 ,  C30B23/025 ,  C30B25/183 ,  C30B25/186 ,  C30B29/02 ,  C30B29/225 ,  H01L39/2461

Abstract: The present invention provides a textured substrate for forming an epitaxial film, including a textured metal layer on at least one surface of the layer, the textured metal layer including a copper layer having a cube texture, the textured metal layer having, on a surface of the layer, palladium added in an amount of 10 to 300 ng/mm2 per unit area, the hydrogen content of the surface of the textured metal layer being 700 to 2000 ppm. This textured substrate is produced through a step of adding 10 to 300 ng/mm2 per unit area of palladium by strike plating to a surface of the copper layer having a cube texture.

Abstract translation: 本发明提供了一种用于形成外延膜的织构化衬底，其包括在该层的至少一个表面上的织构化金属层，该纹理化金属层包括具有立体结构的铜层，该织构化金属层在 该层，每单位面积添加量为10〜300ng / mm 2的钯，织构化金属层的表面的氢含量为700〜2000ppm。 这种织构化的基板是通过在具有立体结构的铜层的表面上通过冲击镀添加10至300ng / mm 2的每单位面积钯的步骤而制造的。