Patents by Inventor Kouji Nanbu
Kouji Nanbu 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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Publication number: 20230329079Abstract: A bismuth-based lead-free glass composition containing 70 to 84% by weight of Bi2O3, 10 to 12% by weight of ZnO, and 6 to 12% by weight of B2O3.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Toshihiko MIYAZAKI, Hirohisa MASUDA, Hiroshi SHIMOMURA, Kouji NANBU
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Patent number: 11723262Abstract: A substrate for flexible device. The substrate has a nickel-plated metal sheet having a nickel-plating layer formed on at least one surface of a metal sheet or a nickel-based sheet, and a glass layer of an electrically-insulating layered bismuth-based glass on a surface of the nickel-plating layer or the nickel-based sheet. An oxide layer having a roughened surface is formed on the surface of the nickel-plating layer or the surface of the nickel-based sheet, and the bismuth-based glass contains 70 to 84% by weight of Bi2O3, 10 to 12% by weight of ZnO, and 6 to 12% by weight of B2O3. Also disclosed is a method for producing the substrate for flexible device, a substrate for an organic EL device, a sheet used as a substrate for flexible device, a method for producing the sheet and a bismuth-based lead-free glass composition.Type: GrantFiled: July 15, 2021Date of Patent: August 8, 2023Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Toshihiko Miyazaki, Hirohisa Masuda, Hiroshi Shimomura, Kouji Nanbu
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Patent number: 11414762Abstract: A substrate for a flexible device which includes a stainless steel sheet, a nickel plating layer formed on a surface of the stainless steel sheet, and a glass layer of electrical insulating bismuth-based glass formed in the form of layer on a surface of the nickel plating layer.Type: GrantFiled: June 18, 2018Date of Patent: August 16, 2022Assignee: TOYO SEIKAN GROUP HOLDINGS. LTD.Inventors: Kouji Nanbu, Toshihiko Miyazaki, Hirohisa Masuda, Hiroshi Shimomura
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Publication number: 20210343956Abstract: A substrate for flexible device. The substrate has a nickel-plated metal sheet having a nickel-plating layer formed on at least one surface of a metal sheet or a nickel-based sheet, and a glass layer of an electrically-insulating layered bismuth-based glass on a surface of the nickel-plating layer or the nickel-based sheet. An oxide layer having a roughened surface is formed on the surface of the nickel-plating layer or the surface of the nickel-based sheet, and the bismuth-based glass contains 70 to 84% by weight of Bi2O3, 10 to 12% by weight of ZnO, and 6 to 12% by weight of B2O3. Also disclosed is a method for producing the substrate for flexible device, a substrate for an organic EL device, a sheet used as a substrate for flexible device, a method for producing the sheet and a bismuth-based lead-free glass composition.Type: ApplicationFiled: July 15, 2021Publication date: November 4, 2021Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Toshihiko MIYAZAKI, Hirohisa MASUDA, Hiroshi SHIMOMURA, Kouji NANBU
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Publication number: 20210343953Abstract: A substrate for flexible device, including a stainless steel sheet, an oxide layer formed on a surface of the stainless steel sheet, and a glass layer of electrically-insulating bismuth-based glass formed in a form of layer on the surface of the oxide layer. Also disclosed is a sheet for flexible device, including a stainless steel sheet, and an oxide layer on a surface of the stainless steel sheet, the oxide layer having a thickness of not less than 30 nm.Type: ApplicationFiled: August 29, 2019Publication date: November 4, 2021Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kouji NANBU, Toshihiko MIYAZAKI, Hirohisa MASUDA, Hiroshi SHIMOMURA
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Patent number: 11101436Abstract: A substrate for flexible device. The substrate has a nickel-plated metal sheet having a nickel-plating layer formed on at least one surface of a metal sheet or a nickel-based sheet, and a glass layer of an electrically-insulating layered bismuth-based glass on a surface of the nickel-plating layer or the nickel-based sheet. An oxide layer having a roughened surface is formed on the surface of the nickel-plating layer or the surface of the nickel-based sheet, and the bismuth-based glass contains 70 to 84% by weight of Bi2O3, 10 to 12% by weight of ZnO, and 6 to 12% by weight of B2O3. Also disclosed is a method for producing the substrate for flexible device, a substrate for an organic EL device, a sheet used as a substrate for flexible device, a method for producing the sheet and a bismuth-based lead-free glass composition.Type: GrantFiled: March 22, 2017Date of Patent: August 24, 2021Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Toshihiko Miyazaki, Hirohisa Masuda, Hiroshi Shimomura, Kouji Nanbu
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Patent number: 10864596Abstract: It is an objective of the present invention to provide a metal laminate material, which has sufficient strength as well as molding processability, lightweight properties, and radiation performance, which is a metal laminate material that has a two-layer structure of a stainless steel layer and an aluminum layer or a three-layer structure of a 1st stainless steel layer, an aluminum layer, and a 2nd stainless steel layer, wherein tensile strength TS is 200?TS?550 (MPa), elongation EL is not less than 15%, and a surface hardness Hv of the stainless steel layer is not more than 300 for the metal laminate material.Type: GrantFiled: September 30, 2016Date of Patent: December 15, 2020Assignee: Toyo Kohan Co., Ltd.Inventors: Kouji Nanbu, Teppei Kurokawa, Takashi Koshiro, Hironao Okayama
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Publication number: 20200141009Abstract: A substrate for a flexible device which includes a stainless steel sheet, a nickel plating layer formed on a surface of the stainless steel sheet, and a glass layer of electrical insulating bismuth-based glass formed in the form of layer on a surface of the nickel plating layer.Type: ApplicationFiled: June 18, 2018Publication date: May 7, 2020Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kouji NANBU, Toshihiko MIYAZAKI, Hirohisa MASUDA, Hiroshi SHIMOMURA
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Patent number: 10259073Abstract: An object of the present invention is to provide a production method for efficiently producing a metal laminate having high bonding strength. A method for producing a metal laminate material comprising the steps of: sputter etching faces to be bonded of a stainless steel and an aluminum such that an oxide layer remains on each face; temporarily bonding the faces to be bonded of the stainless steel and the aluminum by roll pressure bonding; and thermally treating the temporarily bonded laminate material at a temperature lower than the recrystallization temperature of the stainless steel to thermally diffuse at least a metal element comprised in the stainless steel into the aluminum.Type: GrantFiled: March 27, 2015Date of Patent: April 16, 2019Assignee: Toyo Kohan Co., Ltd.Inventors: Kouji Nanbu, Teppei Kurokawa, Takashi Koshiro, Hironao Okayama
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Publication number: 20190088893Abstract: The present invention relates to a substrate for flexible device. The substrate has a nickel-plated metal sheet having a nickel-plating layer formed on at least one surface of a metal sheet or a nickel-based sheet, and a glass layer of an electrically-insulating layered bismuth-based glass on a surface of the nickel-plating layer or the nickel-based sheet. An oxide layer having a roughened surface is formed on the surface of the nickel-plating layer or the surface of the nickel-based sheet, and the bismuth-based glass contains 70 to 84% by weight of Bi2O3, 10 to 12% by weight of ZnO, and 6 to 12% by weight of B2O3. This substrate for flexible device is excellent in moisture barrier properties and adhesion of the glass layer, and also in a surface smoothness since occurrence of seeding and cissing on the glass layer surface can be prevented or controlled effectively.Type: ApplicationFiled: March 22, 2017Publication date: March 21, 2019Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Toshihiko MIYAZAKI, Hirohisa MASUDA, Hiroshi SHIMOMURA, Kouji NANBU
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Publication number: 20180281103Abstract: It is an objective of the present invention to provide a metal laminate material, which has sufficient strength as well as molding processability, lightweight properties, and radiation performance, which is a metal laminate material that has a two-layer structure of a stainless steel layer and an aluminum layer or a three-layer structure of a 1st stainless steel layer, an aluminum layer, and a 2nd stainless steel layer, wherein tensile strength TS is 200?TS?550 (MPa), elongation EL is not less than 15%, and a surface hardness Hv of the stainless steel layer is not more than 300 for the metal laminate material.Type: ApplicationFiled: September 30, 2016Publication date: October 4, 2018Applicant: Toyo Kohan Co., Ltd.Inventors: Kouji Nanbu, Teppei Kurokawa, Takashi Koshiro, Hironao Okayama
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Patent number: 10087552Abstract: An objective of the present invention is to provide a copper substrate for epitaxial growth, which has higher biaxial crystal orientation, and a method for manufacturing the same. The substrate for epitaxial growth of the present invention contains a biaxially crystal-oriented copper layer, wherein the full width at half maximum ?? of a peak based on the pole figure of the copper layer is within 5° and the tail width ?? of the peak based on the pole figure is within 15° Such a substrate for epitaxial growth is manufactured by a 1st step of performing heat treatment of a copper layer so that ?? is within 6° and the tail width ?? is within 25°, and after the 1st step, a 2nd step of performing heat treatment of the copper layer at a temperature higher than the temperature for heat treatment in the 1st step, so that ?? is within 5° and the tail width ?? is within 15°.Type: GrantFiled: August 23, 2013Date of Patent: October 2, 2018Assignees: Toyo Kohan Co., Ltd., Sumitomo Electric Industries, Ltd.Inventors: Takashi Koshiro, Hironao Okayama, Teppei Kurokawa, Kouji Nanbu
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Publication number: 20180265990Abstract: This invention provides a magnesium laminate material with high heat radiation performance, reduced weight, higher strength, and excellent molding processability. Such metal laminate material has a three-layer-structure of a first stainless steel layer, a magnesium layer and a second stainless steel layer, wherein tensile strength (TS) is 200 to 430 MPa, elongation (EL) is 10% or more, and the surface hardness (Hv) of the first stainless steel layer and the second stainless steel layer is 300 or less.Type: ApplicationFiled: September 30, 2016Publication date: September 20, 2018Applicant: Toyo Kohan Co., Ltd.Inventors: Kouji Nanbu, Yusuke Hashimoto, Hironao Okayama
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Publication number: 20170014942Abstract: An object of the present invention is to provide a method for producing a metal laminate material that maintains sufficient bonding strength and has superior production efficiency. A method for producing a metal laminate material by bonding two sheets, one sheet composed of a material M1 and the other sheet composed of a material M2, wherein each of M1 and M2 is a metal or alloy comprising any one or more selected from the group consisting of Mg, Al, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Mo, Pd, Ag, In, Sn, Hf, Ta, W, Pb, and Bi, comprises the steps of subjecting the faces of the two sheets to be bonded to sputtering treatment with inert gas ions under vacuum such that oxide layers on surface layers remain; temporarily bonding the two sheets by roll pressure bonding; and conducting a thermal treatment to thereby bond the two sheets, and, when Tm1>Tm2 where Tm1 (K) is the melting point of M1 and Tm2(K) is the melting point of M2, the temperature of the thermal treatment is 0.45Tm2 or more and less than 0.Type: ApplicationFiled: March 27, 2015Publication date: January 19, 2017Applicant: Toyo Kohan Co., Ltd.Inventors: Kouji NANBU, Teppei KUROKAWA, Takashi KOSHIRO, Hironao OKAYAMA
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Publication number: 20170014941Abstract: An object of the present invention is to provide a production method for efficiently producing a metal laminate having high bonding strength. A method for producing a metal laminate material comprising the steps of: sputter etching faces to be bonded of a stainless steel and an aluminum such that an oxide layer remains on each face; temporarily bonding the faces to be bonded of the stainless steel and the aluminum by roll pressure bonding; and thermally treating the temporarily bonded laminate material at a temperature lower than the recrystallization temperature of the stainless steel to thermally diffuse at least a metal element comprised in the stainless steel into the aluminum.Type: ApplicationFiled: March 27, 2015Publication date: January 19, 2017Applicant: Toyo Kohan Co., Ltd.Inventors: Kouji Nanbu, Teppei Kurokawa, Takashi Koshiro, Hironao Okayama
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Publication number: 20150299899Abstract: An objective of the present invention is to provide a copper substrate for epitaxial growth, which has higher biaxial crystal orientation, and a method for manufacturing the same. The substrate for epitaxial growth of the present invention contains a biaxially crystal-oriented copper layer, wherein the full width at half maximum ?? of a peak based on the pole figure of the copper layer is within 5° and the tail width ?? of the peak based on the pole figure is within 15° Such a substrate for epitaxial growth is manufactured by a 1st step of performing heat treatment of a copper layer so that ?? is within 6° and the tail width ?? is within 25°, and after the 1st step, a 2nd step of performing heat treatment of the copper layer at a temperature higher than the temperature for heat treatment in the 1st step, so that ?? is within 5° and the tail width ?? is within 15°.Type: ApplicationFiled: August 23, 2013Publication date: October 22, 2015Applicants: Toyo Kohan Co., Ltd., Sumitomo Electric Industries, Ltd.Inventors: Takashi Koshiro, Hironao Okayama, Teppei Kurokawa, Kouji Nanbu
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Patent number: 9017757Abstract: A method of manufacturing a hydrogen separation membrane with a carrier is characterized by including a first step of providing, between the hydrogen separation membrane and the carrier that supports the hydrogen separation membrane, a low-hardness metal membrane having a hardness that is lower than the hardness of the hydrogen separation membrane, and a second step of joining the hydrogen separation membrane, the low-hardness metal membrane, and the carrier by a cold joining method. In this case, it is possible to suppress the deformation of the hydrogen separation membrane, the low-hardness metal membrane, and the carrier and, as a result, it is possible to prevent damaging of the hydrogen separation membrane. The adhesion of the contact between the hydrogen separation membrane and the carrier is also improved. The result is that it is not necessary to increase the severity of the cold joining conditions.Type: GrantFiled: October 25, 2006Date of Patent: April 28, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Toyo Kohan Co., Ltd.Inventors: Satoshi Aoyama, Yasuhiro Izawa, Kenji Kimura, Shinji Ohsawa, Kazuo Yoshida, Kouji Nanbu
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Patent number: 8993064Abstract: Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed by such bonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of 10 nm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.Type: GrantFiled: November 12, 2010Date of Patent: March 31, 2015Assignees: Toyo Kohan Co., Ltd., Sumitomo Electric Industries, Ltd.Inventors: Hironao Okayama, Kouji Nanbu, Akira Kaneko, Hajime Ota, Kotaro Ohki, Takashi Yamaguchi, Kazuhiko Hayashi, Kazuya Ohmatsu
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Patent number: 8815777Abstract: A metal laminated substrate for an oxide superconducting wire is produced by removing, in a state where a copper foil to which rolling is applied at a draft of 90% or more is held at a temperature below a recrystallization temperature, an absorbed material on a surface of the copper foil by applying sputter etching to the surface of the copper foil; removing an absorbed material on a surface of a nonmagnetic metal sheet by applying sputter etching to the surface of the nonmagnetic metal sheet; bonding the copper foil and the metal sheet to each other by reduction rolls at an applied pressure of 300 MPa to 1500 MPa; orienting crystals of the copper by heating a laminated body obtained by bonding at a crystal orientation temperature of copper or above; and forming a protective layer on a copper-side surface of the laminated body by coating.Type: GrantFiled: July 8, 2010Date of Patent: August 26, 2014Assignees: Toyo Kohan Co., Ltd., Sumitomo Electric Industries, Ltd.Inventors: Hironao Okayama, Teppei Kurokawa, Kouji Nanbu, Yoshihiko Isobe, Takashi Koshiro, Akira Kaneko, Hajime Ota, Kotaro Ohki, Takashi Yamaguchi, Kazuya Ohmastu
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Publication number: 20130040821Abstract: Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed by such bonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of lOnm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.Type: ApplicationFiled: November 12, 2010Publication date: February 14, 2013Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYO KOHAN CO., LTD.Inventors: Hironao Okayama, Kouji Nanbu, Akira Kaneko, Hajime Ota, Kotaro Ohki, Takashi Yamaguchi, Kazuhiko Hayashi, Kazuya Ohmatsu