Patents by Inventor Toshio Tani
Toshio Tani 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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Patent number: 11264617Abstract: An all-solid-state secondary battery, wherein: an anode current collector that contains copper or copper alloy; a cathode current collector comprising aluminum, aluminum alloy or stainless steel, provided opposite to the anode current collector; an anode active material layer formed there between from the anode current collector side on the surface of the anode current collector; a solid electrolyte layer comprising a sulfide solid electrolyte that contains a monovalent or divalent metal and sulfur; and a cathode active material layer formed on the surface of the cathode current collector are layered successively, is used. A sulfidation resistant layer is formed on the surface of the anode current collector on which the anode active material layer is formed. Or, the surface of the anode current collector on which the anode active material layer is formed has a compressive strength of 1250 to 3000 MPa.Type: GrantFiled: September 25, 2015Date of Patent: March 1, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Toshio Tani, Masanobu Aragaki, Isamu Futaba, Toshiya Hikami
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Publication number: 20190032231Abstract: A metal-containing cluster catalyst includes a cluster including at least one metal atom (M), a metal of each of the at least one metal atom (M) being selected from the group consisting of gold, silver, copper, platinum, rhodium, palladium, nickel, cobalt, iron, manganese, chromium, iridium, and ruthenium. The metal-containing cluster catalyst is used for reducing carbon dioxide.Type: ApplicationFiled: September 27, 2018Publication date: January 31, 2019Applicant: Furukawa Electric Co., Ltd.Inventors: Yoshinori KAZAMA, Hideki AIZAWA, Toshio TANI, Kojiro INAMORI
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Patent number: 9603245Abstract: To provide an electrolytic copper foil for a negative electrode for a lithium-ion secondary battery with which it is possible to produce a long-life lithium-ion secondary battery in which there is no decline in the capacity retention ratio even when the charge-discharge cycling is repeated, that has long life, and no deformation of a negative electrode current collector occurs. The electrolytic copper foil constituting the negative electrode current collector for the lithium-ion secondary battery has, after heat treatment at from 200 to 400° C., a 0.2% proof stress of 250 N/mm2 or more, and elongation of 2.5% or more; and the surface on which an active material layer of the electrolytic copper foil is provided has been rust-proofed, or roughened and rust-proofed.Type: GrantFiled: December 27, 2011Date of Patent: March 21, 2017Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Akitoshi Suzuki, Kensaku Shinozaki, Toshio Tani, Hirokazu Sasaki, Isamu Futaba, Kouji Hataya, Shinya Ohtomo, Hirokazu Yoshikawa
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Publication number: 20160197351Abstract: An all-solid-state secondary battery, wherein: an anode current collector that contains copper or copper alloy; a cathode current collector comprising aluminum, aluminum alloy or stainless steel, provided opposite to the anode current collector; an anode active material layer formed there between from the anode current collector side on the surface of the anode current collector; a solid electrolyte layer comprising a sulfide solid electrolyte that contains a monovalent or divalent metal and sulfur; and a cathode active material layer formed on the surface of the cathode current collector are layered successively, is used. A sulfidation resistant layer is formed on the surface of the anode current collector on which the anode active material layer is formed. Or, the surface of the anode current collector on which the anode active material layer is formed has a compressive strength of 1250 to 3000 MPa.Type: ApplicationFiled: September 25, 2015Publication date: July 7, 2016Inventors: Toshio TANI, Masanobu ARAGAKI, Isamu FUTABA, Toshiya HIKAMI
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Patent number: 9293771Abstract: A chargeable and dischargeable secondary battery for use in electronic devices, industrial machines, electric-powered vehicles, is provided, along with an anodic electrode and a copper foil for anode current collector. It is an anode for secondary battery that utilizes non-aqueous electrolyte, which comprises a silicon-type active material film formed on one side or both sides of a current collector made of copper foil or copper alloy foil, wherein 1 g/m2 to 14 g/m2 of silicon-type active material film is formed on said current collector, and the lightness Y value in a XYZ colorimetric system (CIE 1931 standard colorimetric system) for the surface of said anode, onto which said silicon-type active material film is formed, is 15 to 50, and the surface roughness (ten point average roughness) Rz specified by the Japanese Industrial Standards (JIS B0601-1994 ten point average roughness) is 1.0 ?m or more and 4.5 ?m or less.Type: GrantFiled: December 28, 2012Date of Patent: March 22, 2016Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Toshio Tani, Kiyoshi Yoshinari, Akitoshi Suzuki, Kensaku Shinozaki
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Patent number: 9136535Abstract: An object of the present invention is to provide a cathode active material which contains small-particle sized and low-crystalline lithium transition metal silicate and which undergoes charge-discharge reaction at room temperature. The cathode active material for a non-aqueous electrolyte secondary battery is characterized by containing a lithium transition metal silicate and exhibits diffraction peaks having half widths of 0.175 to 0.6°, the peaks observed through powder X-ray diffractometry within a 2? range of 5 to 50°.Type: GrantFiled: August 30, 2012Date of Patent: September 15, 2015Assignees: FURUKAWA ELECTRIC CO., LTD., THE FURUKAWA BATTERY CO., LTD.Inventors: Michio Ohkubo, Michihiro Shimada, Naoki Uno, Yosuke Hirayama, Toshio Tani, Hidetoshi Abe, Miyu Aita
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Publication number: 20150132646Abstract: The purpose of the invention is to obtain a negative electrode for a large-capacity nonaqueous electrolyte rechargeable battery having good cycle characteristics. In the present invention, a negative electrode for a nonaqueous electrolyte rechargeable battery is used as a solution, said negative electrode being characterized by having an active material layer on a current collector, said active material layer containing at least granules, and one or more types of coating binder comprising any of a polyimide, polybenzimidazole, polyamide-imide and polyamide. The negative electrode is further characterized in that the granules contain at least active material particles containing: at least one type of element selected from a group comprising Si, Sn, Al, Pb, Sb, Bi, Ge, In and Zn; and a granulation binder.Type: ApplicationFiled: November 6, 2014Publication date: May 14, 2015Inventors: Hideo NISHIKUBO, Takeshi NISHIMURA, Toshio TANI, Koji HATAYA, Toshiya HIKAMI, Masaaki KUBOTA, Hidetoshi ABE
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Patent number: 8980428Abstract: Porous silicon particles and complex porous silicon particles suitable for negative electrode materials etc. for lithium-ion batteries, which achieve high capacity and good cycling characteristics, are provided. Porous silicon particles formed by the joining of a plurality of silicon microparticles, and having an average particle diameter of 0.1 ?m to 1000 ?m, a three-dimensional network structure having continuous gaps, an average porosity of 15 to 93%, and a structure in which the particles of a whole particle are uniform. Complex porous silicon particles formed by the joining of a plurality of silicon microparticles and a plurality of silicon compound particles, and characterized by containing a compound of silicon and composite elements, having an average particle diameter of 0.1 ?m to 1000 ?m, and having a three-dimensional network structure having continuous gaps.Type: GrantFiled: March 12, 2013Date of Patent: March 17, 2015Assignees: Furukawa Electric Co., Ltd., Tohoku Techno Arch Co., Ltd.Inventors: Hirokazu Yoshida, Kazutomi Miyoshi, Kazuhiko Kurusu, Toshio Tani, Koji Hataya, Takeshi Nishimura, Hidemi Kato, Takeshi Wada
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Publication number: 20140166928Abstract: A particulate mixture etc., which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. Further, a cathode active material that can undergo charge-and-discharge reaction in room temperature, and comprises lithium transition metal silicate-type compound, is provided. It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2?=33.1° and near 2?=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state. Furthermore, a cathode active material obtained by grinding the active material aggregate obtained by heat-treating this particulate mixture is provided.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Michio OHKUBO, Takeshi YAGI, Michihiro SHIMADA, Naoki UNO, Yosuke HIRAYAMA, Takeshi NISHIMURA, Toshio TANI
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Patent number: 8696949Abstract: A particulate mixture which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2?=33.1° and near 2?=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state.Type: GrantFiled: August 28, 2012Date of Patent: April 15, 2014Assignee: Furukawa Electric Co., Ltd.Inventors: Michio Ohkubo, Takeshi Yagi, Michihiro Shimada, Naoki Uno, Yosuke Hirayama, Takeshi Nishimura, Toshio Tani
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Publication number: 20140017564Abstract: To provide an electrolytic copper foil for a negative electrode for a lithium-ion secondary battery with which it is possible to produce a long-life lithium-ion secondary battery in which there is no decline in the capacity retention ratio even when the charge-discharge cycling is repeated, that has long life, and no deformation of a negative electrode current collector occurs. The electrolytic copper foil constituting the negative electrode current collector for the lithium-ion secondary battery has, after heat treatment at from 200 to 400° C., a 0.2% proof stress of 250N/mm2 or more, and elongation of 2.5% or more; and the surface on which an active material layer of the electrolytic copper foil is provided has been rust-proofed, or roughened and rust-proofed.Type: ApplicationFiled: December 27, 2011Publication date: January 16, 2014Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Akitoshi Suzuki, Kensaku Shinozaki, Toshio Tani, Hirokazu Sasaki, Isamu Futaba, Kouji Hataya, Shinya Ohtomo, Hirokazu Yoshikawa
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Publication number: 20130052544Abstract: An object of the present invention is to provide a cathode active material which contains small-particle sized and low-crystalline lithium transition metal silicate and which undergoes charge-discharge reaction at room temperature. The cathode active material for a non-aqueous electrolyte secondary battery is characterized by containing a lithium transition metal silicate and exhibits diffraction peaks having half widths of 0.175 to 0.6°, the peaks observed through powder X-ray diffractometry within a 2? range of 5 to 50°.Type: ApplicationFiled: August 30, 2012Publication date: February 28, 2013Applicants: THE FURUKAWA BATTERY CO., LTD, FURUKAWA ELECTRIC CO., LTD.Inventors: Michio OHKUBO, Michihiro SHIMADA, Naoki UNO, Yosuke HIRAYAMA, Toshio TANI, Hidetoshi ABE, Miyu AITA
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Publication number: 20130052529Abstract: A particulate mixture etc., which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. Further, a cathode active material that can undergo charge-and-discharge reaction in room temperature, and comprises lithium transition metal silicate-type compound, is provided. It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2?=33.1° and near 2?=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state. Furthermore, a cathode active material obtained by grinding the active material aggregate obtained by heat-treating this particulate mixture is provided.Type: ApplicationFiled: August 28, 2012Publication date: February 28, 2013Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Michio OHKUBO, Takeshi YAGI, Michihiro SHIMADA, Naoki UNO, Yosuke HIRAYAMA, Takeshi NISHIMURA, Toshio TANI
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Publication number: 20050281994Abstract: A metallic material for electric or electronic parts containing a resin film on or over at least a part of a metallic substrate; and an electric or electronic part using the metallic material.Type: ApplicationFiled: June 1, 2005Publication date: December 22, 2005Inventors: Toshio Tani, Satoshi Suzuki, Masakazu Mesaki
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Patent number: 6393189Abstract: An optical beam diameter reducer for reducing a beam diameter of an optical beam comprises a three-layer structure composed of a central core, a refractive index inclined layer formed outside the core which refractive index gradually decreases toward the outside in the radial direction and a cladding layer formed outside the refractive index inclined layer.Type: GrantFiled: February 17, 2000Date of Patent: May 21, 2002Assignee: KDD CorporationInventors: Yoshinori Mimura, Yukio Noda, Tetsuya Nakai, Toshio Tani
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Patent number: 6024806Abstract: An Al-base alloy prepared by hot-working a mixture of an Al alloy powder and dan Ni powder to join the powders and having a structure wherein Ni--Al intermetallic compounds are dispersed. The powder mixture can be hot-worked in the solid-phase temperature range, liquid phase temperature range or solid-liquid phase mixture temperature range of the Al alloy. A dispersion strengthening powder can be further admixed with the mixture of Al alloy powder and Ni powder.Type: GrantFiled: July 19, 1995Date of Patent: February 15, 2000Assignee: Kubota CorporationInventors: Shoichi Yoshino, Toshio Tani, Kazuo Osada
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Patent number: 6020991Abstract: A 1.3 .mu.m-band optical amplifier includes an optical amplifying fiber doped with Yb ion for emitting light in 1.02 .mu.m band by pumping of the 0.98 .mu.m band light and Pr ion for amplifying signal light by pumping of the 1.02 .mu.m band light. Both ends of the optical amplifying fiber are connected to optical fiber gratings for selectively reflecting 1.02 .mu.m band light via matching connecting members and tapered core optical fibers. The optical fiber gratings form a 1.02 .mu.m-band resonator. A Wavelength Division Multiplexing (WDM) optical coupler multiplexes the signal light and pumping light from an pumping laser and supplies the thus-multiplexed light to the optical fiber grating. The pumping laser comprises a laser device which causes laser oscillation at 0.98 .mu.m. A 1.5 .mu.m-band optical amplifier having a similar configuration is also disclosed.Type: GrantFiled: August 26, 1998Date of Patent: February 1, 2000Assignee: KDD CorporationInventors: Mimura Yoshinori, Yukio Noda, Tetsuya Nakai, Toshio Tani, Tomomi Sudo, Shunichi Ohno
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Patent number: 5858122Abstract: Disclosed is a material capable of readily developing natural patina, comprising a basis material made of Cu or a Cu alloy at least on the surface; and a layer of at least one compound selected from the group consisting of CuCl, CuBr and CuI formed on the surface of said basis material, and also a process for producing such material, which comprises anodizing the surface of a basis material made of Cu or a Cu alloy at least on the surface in an aqueous solution containing at least one kind of halogen ion selected from the group consisting of Cl.sup.-, Br.sup.- and I.sup.-. This material develops natural patina in a very short time after exposure outdoors.Type: GrantFiled: February 29, 1996Date of Patent: January 12, 1999Assignee: The Furukawa Electric Co., Ltd.Inventors: Toshio Tani, Minoru Igarashi, Hideo Suda
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Patent number: 5708752Abstract: A high power laser transmitting fluoride glass fiber of an enhanced 2.94- .mu.m laser damage threshold value is disclosed, in which either of the core with a high refractive index and the cladding with a low refractive index is formed of fluoride glass which contains fluorine (F) as a component but has it substituted with 0 to 4.1 mol % of bromine (Br), chlorine (Cl), or bromine and chlorine. The optical fiber of the present invention may have its core formed of fluoride glass and its cladding formed of fluorine-contained resin, and the core glass has a composition that 70 to 80% of fluorine (F) is substituted with 0 to 4.1 mol % of bromine (Br), or chlorine (Cl), or bromine and chlorine.Type: GrantFiled: June 28, 1996Date of Patent: January 13, 1998Assignee: Kokusai Denshin Denwa Kabushiki KaishaInventors: Yukio Noda, Yoshinori Mimura, Tetsuya Nakai, Toshio Tani
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Patent number: 5082750Abstract: A magnetic recording medium having excellent noise characteristics and comprising a metal magnetic film formed on a nonmagnetic substrate and made of (1) a Co-Cr-Nb alloy, or (2) a Co-Cr-Ni-Nb alloy. The alloys (1) and (2) are represented respectively by the following formulae:Co.sub.1-x-z Cr.sub.x Nb.sub.z (1)Co.sub.1-x-y-z Cr.sub.x Ni.sub.y Nb.sub.z (2)wherein x, y and z each represent an atomic ratio, x is 0.08 to 0.15, y is 0.05 to 0.25 and z is 0.03 to 0.10.Type: GrantFiled: October 20, 1989Date of Patent: January 21, 1992Assignee: Kubota Ltd.Inventors: Toshiaki Morichika, Toshio Tani, Chiaki Sakai, Hideo Koshimoto, Tatsuhiko Kadowaki