Patents by Inventor Hisato Noro
Hisato Noro 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: 10392709Abstract: A coated steel sheet includes a corrosion-resistant coating composed of at least one layer selected from the group consisting of a Ni layer, a Sn layer, an Fe—Ni alloy layer, an Fe—Sn alloy layer, and an Fe—Ni—Sn alloy layer disposed on at least one surface of a steel sheet, and an adhesive coating disposed on the corrosion-resistant coating, the adhesive coating containing Zr and further containing at least one metal element selected from the group consisting of Co, Fe, Ni, V, Cu, Mn, and Zn, in total, at a ratio by mass of 0.01 to 10 with respect to Zr. The coated steel sheet has excellent humid resin adhesion and corrosion resistance, in which streaky surface defects do not occur.Type: GrantFiled: March 31, 2017Date of Patent: August 27, 2019Assignee: JFE Steel CorporationInventors: Yuka Miyamoto, Takeshi Suzuki, Hiroki Iwasa, Norihiko Nakamura, Masao Inose, Hisato Noro, Yoichi Tobiyama
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Publication number: 20170204521Abstract: A coated steel sheet includes a corrosion-resistant coating composed of at least one layer selected from the group consisting of a Ni layer, a Sn layer, an Fe—Ni alloy layer, an Fe—Sn alloy layer, and an Fe—Ni—Sn alloy layer disposed on at least one surface of a steel sheet, and an adhesive coating disposed on the corrosion-resistant coating, the adhesive coating containing Zr and further containing at least one metal element selected from the group consisting of Co, Fe, Ni, V, Cu, Mn, and Zn, in total, at a ratio by mass of 0.01 to 10 with respect to Zr. The coated steel sheet has excellent humid resin adhesion and corrosion resistance, in which streaky surface defects do not occur.Type: ApplicationFiled: March 31, 2017Publication date: July 20, 2017Applicant: JEF STEEL CORPORATIONInventors: Yuka Miyamoto, Takeshi Suzuki, Hiroki Iwasa, Norihlko Nakamura, Masao Inose, Hisato Noro, Yoichi Tobiyama
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Patent number: 9580816Abstract: Provided are an apparatus for continuous electrolytic treatment of a steel sheet that is suitable for producing a surface-treated steel sheet and a method for producing the surface-treated steel sheet using the apparatus for continuous electrolytic treatment of a steel sheet. The apparatus includes N pairs of tabular electrodes having a length L and being arranged to respectively face two surfaces of a steel sheet. Each electrode includes n sections arranged in the longitudinal direction of the electrode and disposed on the surface of the electrode facing the steel sheet surface. Each section is constituted by a conductive portion including an electrode portion having a length T1 and a nonconductive portion made by making an electrode portion having a length T2 nonconductive, where n×N?10, 0.96?T2/(T1+T2)?0.05, and 0.9?T1/L?0.1.Type: GrantFiled: September 14, 2011Date of Patent: February 28, 2017Assignee: JFE Steel CorporationInventors: Yuka Miyamoto, Takeshi Suzuki, Hisato Noro, Masao Inose, Hiroki Iwasa, Norihiko Nakamura, Yoichi Tobiyama
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Patent number: 9243334Abstract: This invention provides methods and apparatuses which can manufacture Si-containing cold rolled steel sheets exhibiting excellent chemical conversion properties even if a chemical conversion treatment solution is used at a lower temperature while minimally suppressing the generation of sludge as well as reducing running costs. The method includes steps of cold rolling a steel containing 0.5 to 3.0 mass % Si, continuously annealing the cold rolled steel sheet, pickling the surface of the continuously annealed cold rolled steel sheet, and repickling the surface of the pickled steel sheet with a non-oxidative acid. The repickling is performed such that a repickling solution is sampled continuously or periodically, an acid concentration in the sampled solution is measured, and the acid concentration in the repickling solution is regularly controlled within a prescribed concentration range.Type: GrantFiled: March 26, 2012Date of Patent: January 26, 2016Assignee: JFE STEEL CORPORATIONInventors: Tomohiro Matsushima, Masao Inose, Masayasu Nagoshi, Hiroyuki Masuoka, Shigeyuki Aizawa, Hisato Noro
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Patent number: 8906212Abstract: A method to evaluate the corrosion resistance of a can to a content includes filling the can with the content to form a specimen, setting the specimen in an apparatus capable of blocking an outside atmosphere from entering the specimen, optionally saturating the content with nitrogen gas to expel dissolved oxygen present in the content, thereafter while maintaining the temperature of the content at a constant temperature in the range of 25 to 60° C., applying a constant potential that is more anodic than an immersion potential by 50 mV to 200 mV to the can of the specimen, and evaluating the corrosion resistance of the can to the content based on the accumulated amount of electricity generated during a time appropriately selected from 6 to 48 hours immediately after the application of the constant potential.Type: GrantFiled: April 10, 2012Date of Patent: December 9, 2014Assignee: JFE Steel CorporationInventors: Hisato Noro, Yoichiro Yamanaka, Junichi Kitagawa, Yoshihiko Yasue, Hisao Yasuhara
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Publication number: 20140193668Abstract: Stainless steel for fuel cell separators are provided which exhibit stable contact resistance characteristics and excellent practical utility. The stainless steel contains not less than 16 mass % of Cr. When the surface configuration of the stainless steel is analyzed with a scanning electron microscope at a spatial resolution of not more than 0.1 ?m, the surface modulus is not less than 1.02. Preferably, the chemical composition further includes C: not more than 0.03%, Si: not more than 1.0%, Mn: not more than 1.0%, S: not more than 0.01%, P: not more than 0.05%, Al: not more than 0.20%, N: not more than 0.03%, Cr: 16 to 40%, and one or more of Ni: not more than 20%, Cu: not more than 0.6% and Mo: not more than 2.5%, the balance being Fe and inevitable impurities.Type: ApplicationFiled: July 25, 2012Publication date: July 10, 2014Applicant: JFE STEEL CORPORATIONInventors: Noriko Makiishi, Hisato Noro, Shin Ishikawa, Shinsuke Ide, Tomohiro Ishii, Masayasu Nagoshi
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Publication number: 20140154129Abstract: Stainless steel for fuel cell separators contains C: ?0.03%, Si: ?1.0%, Mn: ?1.0%, S: ?0.01%, P: ?0.05%, Al: ?0.20%, N: ?0.03%, Cr: 16 to 40%, and one or more of Ni: ?20%, Cu: ?0.6% and Mo: ?2.5%, the balance being Fe and inevitable impurities. According to X-ray photoelectron spectroscopy, the surface of the stainless steel contains fluorine and provides a 3.0 or higher ratio of the total of atomic concentrations of Cr and Fe in other than the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks to the total of atomic concentrations of Cr and Fe in the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks.Type: ApplicationFiled: July 25, 2012Publication date: June 5, 2014Applicant: JFE STEEL CORPORATIONInventors: Noriko Makiishi, Hisato Noro, Shin Ishikawa, Shinsuke Ide, Tomohiro Ishii, Masayasu Nagoshi
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Publication number: 20140090987Abstract: A method to evaluate the corrosion resistance of a can to a content includes filling the can with the content to form a specimen, setting the specimen in an apparatus capable of blocking an outside atmosphere from entering the specimen, optionally saturating the content with nitrogen gas to expel dissolved oxygen present in the content, thereafter while maintaining the temperature of the content at a constant temperature in the range of 25 to 60° C., applying a constant potential that is more anodic than an immersion potential by 50 mV to 200 mV to the can of the specimen, and evaluating the corrosion resistance of the can to the content based on the accumulated amount of electricity generated during a time appropriately selected from 6 to 48 hours immediately after the application of the constant potential.Type: ApplicationFiled: April 10, 2012Publication date: April 3, 2014Applicant: JFE Steel CorporationInventors: Hisato Noro, Yoichiro Yamanaka, Junichi Kitagawa, Yoshihiko Yasue, Hisao Yasuhara
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Publication number: 20140013814Abstract: This invention provides methods and apparatuses which can manufacture Si-containing cold rolled steel sheets exhibiting excellent chemical conversion properties even if a chemical conversion treatment solution is used at a lower temperature while minimally suppressing the generation of sludge as well as reducing running costs. The method includes steps of cold rolling a steel containing 0.5 to 3.0 mass % Si, continuously annealing the cold rolled steel sheet, pickling the surface of the continuously annealed cold rolled steel sheet, and repickling the surface of the pickled steel sheet with a non-oxidative acid. The repickling is performed such that a repickling solution is sampled continuously or periodically, an acid concentration in the sampled solution is measured, and the acid concentration in the repickling solution is regularly controlled within a prescribed concentration range.Type: ApplicationFiled: March 26, 2012Publication date: January 16, 2014Applicant: JFE STEEL CORPORATIONInventors: Tomohiro Matsushima, Masao Inose, Masayasu Nagoshi, Hiroyuki Masuoka, Shigeyuki Aizawa, Hisato Noro
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Publication number: 20130228467Abstract: Provided are an apparatus for continuous electrolytic treatment of a steel sheet that is suitable for producing a surface-treated steel sheet and a method for producing the surface-treated steel sheet using the apparatus for continuous electrolytic treatment of a steel sheet. The apparatus includes N pairs of tabular electrodes having a length L and being arranged to respectively face two surfaces of a steel sheet. Each electrode includes n sections arranged in the longitudinal direction of the electrode and disposed on the surface of the electrode facing the steel sheet surface. Each section is constituted by a conductive portion including an electrode portion having a length T1 and a nonconductive portion made by making an electrode portion having a length T2 nonconductive, where n×N?10, 0.96?T2/(T1+T2)?0.05, and 0.9?T1/L?0.1.Type: ApplicationFiled: September 14, 2011Publication date: September 5, 2013Applicant: JFE STEEL CORPORATIONInventors: Yuka Miyamoto, Takeshi Suzuki, Hisato Noro, Masao Inose, Hiroki Iwasa, Norihiko Nakamura, Yoichi Tobiyama
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Publication number: 20130216714Abstract: Disclosed is a manufacturing method for steel sheets for containers that enables reliable, continuous manufacture of steel sheets, with excellent film adhesion qualities, for containers. The manufacturing method for steel sheets for containers is a method in which a film containing Zr is formed on the surface of the steel sheets by immersing, and/or subjecting to electrolytic treatment, the steel sheets in a solution containing Zr ions, F ions, and at least one reaction accelerating component selected from a group including Al ions, boric acid ions, Cu ions, Ca ions, metal Al, or metal Cu.Type: ApplicationFiled: September 14, 2011Publication date: August 22, 2013Applicant: JFE STEEL CORPORATIONInventors: Takeshi Suzuki, Yuka Miyamoto, Yoichi Tobiyama, Hisato Noro, Masao Inose
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Publication number: 20130130055Abstract: A coated steel sheet includes a corrosion-resistant coating composed of at least one layer selected from the group consisting of a Ni layer, a Sn layer, an Fe—Ni alloy layer, an Fe—Sn alloy layer, and an Fe—Ni—Sn alloy layer disposed on at least one surface of a steel sheet, and an adhesive coating disposed on the corrosion-resistant coating, the adhesive coating containing Zr and further containing at least one metal element selected from the group consisting of Co, Fe, Ni, V, Cu, Mn, and Zn, in total, at a ratio by mass of 0.01 to 10 with respect to Zr. The coated steel sheet has excellent humid resin adhesion and corrosion resistance, in which streaky surface defects do not occur.Type: ApplicationFiled: March 24, 2011Publication date: May 23, 2013Applicant: JFE STEEL CORPORATIONInventors: Yuka Miyamoto, Takeshi Suzuki, Hiroki Iwasa, Norihiko Nakamura, Masao Inose, Hisato Noro, Yoichi Tobiyama
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Patent number: 8298827Abstract: A method for analyzing a metallic material includes the steps of electrolyzing a metal sample in an electrolyte; removing the electrolyzed metal sample from the electrolyte; immersing the metal sample removed from the electrolyte into a dispersive solution that is different from the electrolyte to separate at least one selected from the group consisting of a precipitate and an inclusion deposited on the metal sample; and analyzing the at least one selected from the group consisting of a precipitate and an inclusion extracted into the dispersive solution.Type: GrantFiled: June 26, 2008Date of Patent: October 30, 2012Assignee: JFE Steel CorporationInventors: Tomoharu Ishida, Satoshi Kinoshiro, Katsumi Yamada, Hisato Noro, Kaoru Sato
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Publication number: 20100206736Abstract: A method for analyzing a metallic material includes the steps of electrolyzing a metal sample in an electrolyte; removing the electrolyzed metal sample from the electrolyte; immersing the metal sample removed from the electrolyte into a dispersive solution that is different from the electrolyte to separate at least one selected from the group consisting of a precipitate and an inclusion deposited on the metal sample; and analyzing the at least one selected from the group consisting of a precipitate and an inclusion extracted into the dispersive solution.Type: ApplicationFiled: June 26, 2008Publication date: August 19, 2010Applicant: JFE STEEL CORPORATIONInventors: Tomoharu Ishida, Satoshi Kinoshiro, Katsumi Yamada, Hisato Noro, Kaoru Sato
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Patent number: 7646846Abstract: The press formability of a galvanized steel sheet including an oxide film, which has a thickness of 10 nm to 100 nm, as a surface layer is nondestructively speedily evaluated.Type: GrantFiled: September 22, 2005Date of Patent: January 12, 2010Assignee: JFE Steel CorporationInventors: Wataru Tanimoto, Hisato Noro
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Publication number: 20090122957Abstract: The press formability of a galvanized steel sheet including an oxide film, which has a thickness of 10 nm to 100 nm, as a surface layer is nondestructively speedily evaluated.Type: ApplicationFiled: September 22, 2005Publication date: May 14, 2009Inventors: Wataru Tanimoto, Hisato Noro
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Patent number: 7291402Abstract: The invention is to provide a surface-treated steel sheet of good white rust resistance with no chromium in its surface treatment film, and it has realized a surface-treated steel sheet of higher-level corrosion resistance by forming a reaction layer of plating metal with a barrier layer effective for anticorrosion not in a two-layered film but in a single-layered film.Type: GrantFiled: February 14, 2003Date of Patent: November 6, 2007Assignees: JFE Steel Corporation, Kansai Paint Co., Ltd.Inventors: Okai Kazuhisa, Akira Matsuzaki, Naoto Yoshimi, Takahiro Kubota, Masaaki Yamashita, Hisato Noro, Haruo Nakamichi, Kaoru Sato, Hiroyasu Matsuki, Reijiro Nishida, Masahiro Murata, Shoichi Tanaka, Yoshikazu Morohoshi, Shingo Amaki
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Publication number: 20060057417Abstract: The present invention provides a galvannealed steel sheet excellent in the adhesion with a base steel sheet and a manufacturing method thereof. The galvannealed steel sheet according to the invention has, in an interface between a galvannealed layer and the base steel sheet thereon the galvannealed layer is formed, an irregularity that has a depth of 10 nm or more at a pitch of 0.5 ?m or less at least one per 5 ?m of a length of the interface.Type: ApplicationFiled: February 5, 2004Publication date: March 16, 2006Applicant: JFE STEEL CORPORATIONInventors: Masahiko Tada, Yoichi Tobiyama, Kazuaki Kyono, Noriko Makiishi, Hisato Noro
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Publication number: 20050147832Abstract: The invention is to provide a surface-treated steel sheet of good white rust resistance with no chromium in its surface treatment film, and it has realized a surface-treated steel sheet of higher-level corrosion resistance by forming a reaction layer of plating metal with a barrier layer effective for anticorrosion not in a two-layered film but in a single-layered film.Type: ApplicationFiled: February 14, 2003Publication date: July 7, 2005Inventors: Kazuhisa Okai, Akira Matsuzaki, Naoto Yoshimi, Takahiro Kubota, Masaaki Yamashita, Hisato Noro, Haruo Nakamichi, Kaoru Sato, Hiroyasu Matsuki, Reijiro Nishida, Masahiro Murata, Shoichi Tanaka, Yoshikazu Morohoshi, Shingo Amaki
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Patent number: 6797411Abstract: The method for manufacturing galvanized steel sheet has a step of adjusting the surface texture thereof by blasting solid particles against the surface thereof. The surface texture is defined by at least one parameter selected from the group of parameters consisting of mean roughness Ra on the surface of steel sheet, peak count PPI on the surface of steel sheet, and filtered centerline waviness Wca on the surface of steel sheet. The galvanized steel sheet has a surface in dimple-pattern texture.Type: GrantFiled: June 18, 2003Date of Patent: September 28, 2004Assignee: NKK CorporationInventors: Yasuhiro Sodani, Yukio Kimura, Masayasu Ueno, Shogo Tomita, Hisato Noro, Kaoru Sato, Yoshiharu Sugimoto, Satoru Ando, Masaki Tada, Junichi Inagaki, Masaaki Yamashita, Yuji Yamasaki