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公开(公告)号：US11527761B2
公开(公告)日：2022-12-13
申请号：US16441855
申请日：2019-06-14
发明人： Koichi Matsutani , Takeshi Kaieda , Yasushi Masahiro , Hideaki Kasai , Hiroshi Nakanishi , Koji Shimizu
摘要： Provided are (i) a catalyst that has a core-shell structure and is highly active in an oxygen reduction reaction, which is a cathode reaction of a fuel cell, and (ii) a reaction acceleration method in which the catalyst is used. A core-shell catalyst for accelerating an oxygen reduction reaction, contains: silver or palladium as a core material; and platinum as a shell material, the core-shell catalyst having, on a surface thereof, a (110) surface of a face centered cubic lattice.
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公开(公告)号：US11345986B2
公开(公告)日：2022-05-31
申请号：US17077344
申请日：2020-10-22
发明人： Kunihiro Shima , Kenji Goto , Yasushi Masahiro , Asaka Ueno , Hiroo Iwata , Ryusuke Nakai , Tomonobu Kodama
摘要： 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.
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公开(公告)号：US10125158B2
公开(公告)日：2018-11-13
申请号：US15503822
申请日：2015-08-28
摘要： A method for manufacturing tris(β-diketonato)iridium by reacting β-diketone with an iridium compound, in which an activation treatment including (a) an alkali treatment and (b) an acid treatment described below is applied to the iridium compound to activate the iridium compound, and to subsequently react the β-diketone, (a) an alkali treatment: a treatment of adding alkali to a solution of the iridium compound to raise pH of the solution to a more alkaline side than that before the alkali addition and to not less than 10, and (b) an acid treatment: a treatment of adding acid to the solution subjected to the alkali treatment to lower pH of the solution to a more acidic side than that before the acid addition and to make the pH difference between solutions before and after the acid addition be not less than 0.1 and not more than 10. The present invention allows manufacture of tris(β-diketonato)iridium utilizing a wide variety of β-diketones.
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公开(公告)号：US10538543B2
公开(公告)日：2020-01-21
申请号：US16331978
申请日：2017-10-12
IPC分类号： C07F15/00
摘要： The present invention provides a method for producing a cyclometalated iridium complex, the method including producing a cyclometalated iridium complex by reacting a cyclometalated iridium complex raw material including an organoiridium material with an aromatic heterocyclic bidentate ligand capable of forming an iridium-carbon bond and an iridium-nitrogen bond, and using as the raw material an organoiridium material represented by the following general formula (1). The present invention allows a cyclometalated iridium complex to be produced with a high yield without by-production of a halogen-crosslinked iridium dimer.
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公开(公告)号：US10533027B2
公开(公告)日：2020-01-14
申请号：US16060105
申请日：2016-12-22
发明人： Hideo Konno , Junichi Taniuchi , Ryosuke Harada , Toshiyuki Shigetomi , Rumi Kobayashi , Yasushi Masahiro
摘要： The present invention provides a method for producing a cyclometalated iridium complex by use of a non-chlorine iridium raw material. The method for producing a cyclometalated iridium complex includes producing a cyclometalated iridium complex by reacting a raw material including an iridium compound with an aromatic heterocyclic bidentate ligand capable of forming an iridium-carbon bond, the raw material being non-halogenated iridium having a conjugated base of a strong acid as a ligand. Here, the non-halogenated iridium is preferably one containing a conjugated base of a strong acid having a pKa of 3 or less as a ligand.
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公开(公告)号：US10246770B2
公开(公告)日：2019-04-02
申请号：US15573770
申请日：2016-06-24
发明人： Shunichiro Ohmi , Yasushi Masahiro
IPC分类号： C23C14/58 , C23C14/18 , H01L29/45 , H01L21/285 , H01L21/3205 , C23C16/42 , C22C27/00 , C23C28/00 , C23C14/16 , C23C14/24 , C22C28/00 , H01L21/28 , C22C30/00 , C23C14/14 , C23C14/34 , H01L29/417 , H01L29/78 , C23C14/35 , C23C14/46 , C22C5/04
摘要： The present invention relates to a silicide alloy film that is formed on a substrate containing Si, the silicide alloy film including a metal M1 having a work function of 4.6 eV or more and 5.7 eV or less, a metal M2 having a work function of 2.5 eV or less and 4.0 eV or more, and Si, the silicide alloy film having a work function of 4.3 eV or more and 4.9 eV or less. Here, the metal M1 is preferably Pt, Pd, Mo, Ir, W or Ru, and the metal M2 is preferably Hf, La, Er, Ho, Er, Eu, Pr or Sm. The silicide alloy film according to the present invention is a thin-film which has excellent heat-resistance and favorable electrical property.
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公开(公告)号：US10220120B2
公开(公告)日：2019-03-05
申请号：US14898794
申请日：2014-01-30
发明人： Kunihiro Shima , Kenji Goto , Yasushi Masahiro , Asaka Ueno , Hiroo Iwata , Ryusuke Nakai , Tomonobu Kodama
摘要： 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.
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公开(公告)号：US09793499B2
公开(公告)日：2017-10-17
申请号：US15314648
申请日：2015-06-09
CPC分类号： H01L51/0085 , C07F15/0033 , C09K11/025 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1029 , C09K2211/1088 , C09K2211/1092 , C09K2211/185 , H01L51/5016
摘要： The present invention provides an organic metal complex having high heat resistance while making it possible to realize electroluminescence with high quantum efficiency as a light-emitting material for organic electroluminescent (EL) element. The present invention relates to an organic iridium complex for an organic EL element, wherein a C—N ligand including a substituent of a tricyclic-based structure obtained by condensing a heterocyclic ring and two benzene rings, and a β-diketone ligand composed of a propane-1,3-dione having two tert-butyl-substituted phenyl groups are coordinated with an iridium atom. The complex of the present invention has high heat resistance and contributes to lifetime prolongation of the organic EL element.
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公开(公告)号：US10883162B2
公开(公告)日：2021-01-05
申请号：US15106508
申请日：2014-01-30
发明人： Kunihiro Shima , Kenji Goto , Yasushi Masahiro , Asaka Ueno , Hiroo Iwata , Ryusuke Nakai , Tomonobu Kodama
摘要： 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.
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公开(公告)号：US10053479B2
公开(公告)日：2018-08-21
申请号：US15109927
申请日：2014-12-16
CPC分类号： C07F15/0033 , C07C49/92 , C07F15/004
摘要： The present invention relates to a raw material for a cyclometalated iridium complex, and provides a technique that makes it possible to obtain a cyclometalated iridium complex in higher yield at a lower reaction temperature than using tris(2,4-pentanedionato)iridium(III). The present invention relates to a raw material for a cyclometalated iridium complex, including an organic iridium material for producing a cyclometalated iridium complex, the organic iridium material being a tris(β-diketonato)iridium(III), in which an asymmetric β-diketone is coordinated to iridium.
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