Patents by Inventor Hiroshi Irie
Hiroshi Irie 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: 20240229211Abstract: A method for manufacturing a hot-dip galvanized steel sheet having a high Si content and good plating adhesion. The method for manufacturing a hot-dip galvanized steel sheet includes the following: hot-rolling a steel raw material having a Si content of 1.0 mass % or more and coiling a steel sheet at 500° C. to 700° C.; subjecting a surface of the steel sheet after the coiling to an oxidation treatment at a heating temperature of a steel sheet temperature of 750° C. or lower, and subsequently subjecting the surface to a reduction treatment; and subjecting the steel sheet after the reduction treatment to a hot-dip galvanizing treatment to form a Zn-plated layer on a surface of the steel sheet.Type: ApplicationFiled: March 2, 2022Publication date: July 11, 2024Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)Inventors: Akira KAWAKAMI, Hiroo SHIGE, Hiroshi IRIE, Takayuki MAEDA, Hang YU
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Publication number: 20240141464Abstract: A steel sheet may be used for hot-dip galvanizing capable of manufacturing hot-dip galvannealed steel sheet(s) with a high Si content and in which alloying unevenness is suppressed. Such a steel sheet for hot-dip galvanizing may include an internal oxide layer containing an oxide of Si between a surface layer of the steel sheet and a steel sheet base portion. The Si content in a chemical composition of the steel sheet may be 1.0 mass % or more. A solid solution Si amount from a surface of the steel sheet to a depth of 1 ?m measured at all four positions including positions of 10 mm, 30 mm, and 50 mm from an edge in a coil width direction and a position of a center in the coil width direction at a rear end in a rolling direction of the steel sheet for hot-dip galvanizing may be 1.4 wt. % or less.Type: ApplicationFiled: March 2, 2022Publication date: May 2, 2024Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Akira KAWAKAMI, Hiroo SHIGE, Hiroshi IRIE, Takayuki MAEDA, Hang YU
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Publication number: 20240133013Abstract: A method for manufacturing a hot-dip galvanized steel sheet having a high Si content and good plating adhesion. The method for manufacturing a hot-dip galvanized steel sheet includes the following: hot-rolling a steel raw material having a Si content of 1.0 mass % or more and coiling a steel sheet at 500° C. to 700° C.; subjecting a surface of the steel sheet after the coiling to an oxidation treatment at a heating temperature of a steel sheet temperature of 750° C. or lower, and subsequently subjecting the surface to a reduction treatment; and subjecting the steel sheet after the reduction treatment to a hot-dip galvanizing treatment to form a Zn-plated layer on a surface of the steel sheet.Type: ApplicationFiled: March 2, 2022Publication date: April 25, 2024Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)Inventors: Akira KAWAKAMI, Hiroo SHIGE, Hiroshi IRIE, Takayuki MAEDA, Hang YU
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Publication number: 20230060680Abstract: A material exhibiting transport phenomena of Weyl fermions is composed of SrRuO3 and has a ratio of a resistivity p at 300 K to a resistivity p at 4 K [residual resistivity ratio RRR=?(300 K)/?(4 K)] of 20 or greater.Type: ApplicationFiled: March 26, 2020Publication date: March 2, 2023Inventors: Yuki Wakabayashi, Yoshiharu Krockenberger, Hiroshi Irie, Yoshitaka Taniyasu, Hideki Yamamoto
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Publication number: 20220364214Abstract: A method for manufacturing a hot-dip galvanized steel sheet according to one aspect of the present invention includes an annealing step of reduction-annealing a steel sheet having a Si content of 1.0% by mass or more and 3.0% by mass or less at a temperature equal to or higher than an A3 point of the steel sheet in an atmosphere having a dew point of ?20° C. or higher; and a hot-dip galvanizing step of making the annealed steel sheet enter into a galvanizing bath to form a galvanized layer on a surface of the steel sheet, wherein a temperature of the steel sheet entering into the galvanizing bath is set to 390° C. or lower.Type: ApplicationFiled: July 1, 2020Publication date: November 17, 2022Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takayuki MAEDA, Hiroshi IRIE
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Patent number: 10597764Abstract: Provided is a technique in which a reduction annealing method is used to efficiently produce a high-strength hot-dip galvanizing substrate or high-strength hot-dip galvannealing substrate, which is useful as a raw material for producing a high-strength plated steel sheet suppressed in the occurrence of bare spot. The substrate for hot-dip galvanizing or hot-dip galvannealing of the present invention satisfies the following condition: when the mapping intensity of Fe, which is obtained by using an electron probe microanalyser in a measurement field of view of 33.6 ?m×41.4 ?m on the surface after reduction annealing, of 0 to 240 is divided into 16 parts at an interval of 15, the area occupied by a mapping intensity of 195 or more has 70% or more.Type: GrantFiled: August 11, 2015Date of Patent: March 24, 2020Assignee: Kobe Steel, Ltd.Inventors: Minoru Chida, Hiroshi Irie
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Publication number: 20200031227Abstract: A display control apparatus in the present invention includes the following: a positional-information acquiring unit that acquires positional information about the current position of a subject vehicle; a map-information acquiring unit that acquires, as information about an intersection, map information including information about lanes of all roads connected to the intersection; a lane-restriction determining unit that, based on the positional information and the map information, determines restrictions on the lanes of all the roads connected to the intersection into which the subject vehicle makes an entry; and a display controller that, based on the determination, controls the display of an object indicating whether the subject vehicle can travel after passing through the intersection, the object being displayed with respect to the lanes of all the roads connected to the intersection, except at least the road on which the subject vehicle is located.Type: ApplicationFiled: March 29, 2017Publication date: January 30, 2020Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroshi Irie, Mitsuo Shimotani
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Patent number: 10406780Abstract: Provided is a hot-dip galvannealed steel sheet for hot stamping use, in which a base steel sheet contains Si in an amount of 0.7% or more, and which has excellent joint strength at a spot-welded part and can exhibit excellent adhesion to a coating film after hot stamping and coating with requiring little restriction of a hot stamp step. In the hot-dip galvannealed steel sheet, a base steel sheet contains, in mass %, 0.10 to 0.5% of C, 0.7 to 2.5% of Si, 1.5 to 3% of Mn and 0.01 to 0.5% of Al. The hot-dip galvannealed steel sheet is characterized in that the Mn concentration in a plating layer is 0.20% or more, the plated amount is 75 g/m2 or less, and the oxygen concentration at the interface between the plating layer and the base steel sheet is 0.50% or less.Type: GrantFiled: April 22, 2014Date of Patent: September 10, 2019Assignee: Kobe Steel, Ltd.Inventors: Takeshi Minowa, Takeshi Kojima, Hiroshi Irie
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Publication number: 20190047255Abstract: For obtaining a hot dip galvannealed steel sheet having high strength and high ductility and excellent phosphatability, a chemical composition of a material steel sheet for forming the hot dip galvannealed steel sheet comprises 0.4 to 2.0 mass % of Si and 1.0 to 3.5 mass % of Mn, and an average Mn concentration for a region from the uppermost surface to 0.01 ?m depth in the coating layer is defined as 0.14% or more.Type: ApplicationFiled: September 18, 2018Publication date: February 14, 2019Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)Inventors: Takeshi Kojima, Hiroshi Irie
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Publication number: 20170137923Abstract: Provided is a technique in which a reduction annealing method is used to efficiently produce a high-strength hot-dip galvanizing substrate or high-strength hot-dip galvannealing substrate, which is useful as a raw material for producing a high-strength plated steel sheet suppressed in the occurrence of bare spot. The substrate for hot-dip galvanizing or hot-dip galvannealing of the present invention satisfies the following condition: when the mapping intensity of Fe, which is obtained by using an electron probe microanalyser in a measurement field of view of 33.6 ?m× 41.4 ?M on the surface after reduction annealing, of 0 to 240 is divided into 16 parts at an interval of 15, the area occupied by a mapping intensity of 195 or more has 70% or more.Type: ApplicationFiled: August 11, 2015Publication date: May 18, 2017Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Minoru CHIDA, Hiroshi IRIE
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Patent number: 9469203Abstract: Battery information output equipment allows a driver of an electric vehicle 10 of an electricity consumer 2, now parked, to input what battery capacity is required at two or more points of time on or before the time at which the electric vehicle is scheduled to come into use, considering an operation schedule for the vehicle, and transmits the usable capacity at each point of the times, i.e., maximum capacity minus capacity required at each point of the times, to a power supply/demand management center 3, so that charge and discharge of a battery 17 is controlled by a charge/discharge command from the power supply/demand management center 3 such that use of battery capacity for power supply and demand leveling is kept within the usable capacity at any point of the times.Type: GrantFiled: July 29, 2011Date of Patent: October 18, 2016Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Corporation, Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Research Institute, Inc.Inventors: Nobuo Momose, Makoto Kataniwa, Yasuhiro Nakai, Hiroyuki Kumazawa, Tatsuji Munaka, Yuichiro Shimura, Hiroshi Tanaka, Hiroshi Irie, Hitoshi Maejima
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Patent number: 9340117Abstract: The invention judges a total power supply/demand condition of the electricity consumers 2 as a whole according to an individual power supply/demand condition of electricity consumers 2, judges a total usable capacity of all batteries 17 according to a usable capacity of the batteries 17 of electric vehicles 10 parked at electricity consumers 2, obtains required charge/discharge amounts of all the batteries 17 according to a result of comparison of the total power supply/demand condition of the electricity consumers 2 as a whole with the total usable capacity of all the batteries 17, subjects the batteries 17 to charge/discharge controls according to the required charge/discharge amounts, the power supply/demand conditions of the electricity consumers 2, and the usable capacities of the batteries.Type: GrantFiled: July 29, 2011Date of Patent: May 17, 2016Assignees: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MITSUBISHI CORPORATION, MITSUBISHI DENKI KABUSHIKI KAISHA, MITSUBISHI RESEARCH INSTITUTE, INC.Inventors: Nobuo Momose, Makoto Kataniwa, Yasuhiro Nakai, Hiroyuki Kumazawa, Tatsuji Munaka, Yoshitaka Okazaki, Yuichiro Shimura, Hiroshi Tanaka, Hiroshi Irie, Hitoshi Maejima
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Publication number: 20160067947Abstract: Provided is a hot-dip galvannealed steel sheet for hot stamping use, in which a base steel sheet contains Si in an amount of 0.7% or more, and which has excellent joint strength at a spot-welded part and can exhibit excellent adhesion to a coating film after hot stamping and coating with requiring little restriction of a hot stamp step. In the hot-dip galvannealed steel sheet, a base steel sheet contains, in mass %, 0.10 to 0.5% of C, 0.7 to 2.5% of Si, 1.5 to 3% of Mn and 0.01 to 0.5% of Al. The hot-dip galvannealed steel sheet is characterized in that the Mn concentration in a plating layer is 0.20% or more, the plated amount is 75 g/m2 or less, and the oxygen concentration at the interface between the plating layer and the base steel sheet is 0.50% or less.Type: ApplicationFiled: April 22, 2014Publication date: March 10, 2016Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO(KOBE STEEL, LTD.)Inventors: Takeshi MINOWA, Takeshi KOJIMA, Hiroshi IRIE
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Publication number: 20160032439Abstract: Provided is a method for producing a plated steel sheet with high Si content for hot stamping, which is capable of suppressing the generation of unplated portions, while maintaining high bonding strength in a welded part in cases where a galvanized steel sheet containing a large amount of Si, namely, 0.7% or more of Si is used for hot stamping applications. In this production method, a hot-rolled pickled steel sheet or cold-rolled steel sheet containing 0.10-0.5% by mass of C, 0.7-2.5% by mass of Si, 1.0-3% by mass of Mn, and 0.01-0.5% by mass of Al is annealed in a reducing atmosphere and then plated, thereby producing a galvanized steel sheet for hot stamping. This method for producing a galvanized steel sheet for hot stamping is characterized in that the annealing is carried out within the range of 500 to 700° C. for 30 to 270 seconds.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takeshi KOJIMA, Hiroshi IRIE, Takeshi MINOWA
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Patent number: 9181613Abstract: A high tensile strength hot-dip galvannealed steel sheet having excellent coated-layer adhesiveness in which the hot-dip galvannealed layer does not peel off from a base steel sheet even in being subjected to working accompanied by sliding and a method for producing the same are provided. In the high tensile strength hot-dip galvannealed steel sheet, a hot-dip galvannealed layer is formed on the surface of the base steel sheet, the base steel sheet contains Si by 0.04-2.5%, and, when the surface roughness of the base steel sheet after the hot-dip galvannealed layer is removed by dissolution with an acid is measured for a plurality of locations by a laser microscope, the arithmetic mean inclination angle (R?a) is 23.0° or more and the root mean square inclination angle (R?q) is 29.0° or more in 60% or more of all of the locations measured.Type: GrantFiled: April 20, 2011Date of Patent: November 10, 2015Assignee: Kobe Steel, Ltd.Inventors: Minoru Chida, Hiroshi Irie
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Patent number: 9043137Abstract: According to a map display device, from current location information acquired by a current location acquiring unit 6 and boundary coordinate information in time zone information acquired by a time zone information acquiring unit 22, it is determined whether or not a vehicle 9 is located within a set area which is provided in the range of a predetermined distance from a boundary of a time zone to which a current location of the vehicle 9 belongs, and if it is determined that the vehicle 9 is located within the set area, a display unit 3 displays distinctively the time zone to which the current location of the vehicle 9 belongs and a time zone which is adjacent to the corresponding time zone through the set area.Type: GrantFiled: December 20, 2010Date of Patent: May 26, 2015Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroshi Irie, Mitsuo Shimotani
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Publication number: 20150125716Abstract: Provided is a method for producing a plated steel sheet with high Si content for hot stamping, which is capable of suppressing the generation of unplated portions, while maintaining high bonding strength in a welded part in cases where a galvanized steel sheet containing a large amount of Si, namely, 0.7% or more of Si is used for hot stamping applications. In this production method, a hot-rolled pickled steel sheet or cold-rolled steel sheet containing 0.10-0.5% by mass of C, 0.7-2.5% by mass of Si, 1.0-3% by mass of Mn, and 0.01-0.5% by mass of Al is annealed in a reducing atmosphere and then plated, thereby producing a galvanized steel sheet for hot stamping. This method for producing a galvanized steel sheet for hot stamping is characterized in that the annealing is carried out within the range of 500 to 700° C. for 30 to 270 seconds.Type: ApplicationFiled: April 23, 2013Publication date: May 7, 2015Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takeshi Kojima, Hiroshi Irie, Takeshi Minowa
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Patent number: 8728973Abstract: The present invention relates to a photocatalytic material having a visible light activity which includes a tungsten-doped titanium oxide or a tungsten/gallium-codoped titanium oxide, and a divalent copper salt and/or a trivalent iron salt supported on a surface of the doped or codoped titanium oxide, and a process for producing the photocatalytic material.Type: GrantFiled: July 29, 2010Date of Patent: May 20, 2014Assignees: The University of Tokyo, Showa Denko K.K.Inventors: Kazuhito Hashimoto, Hiroshi Irie, Huogen Yu, Yasushi Kuroda, Yasuhiro Hosogi
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Patent number: 8697252Abstract: Disclosed is a hot-dip galvannealed steel sheet that stably exhibits satisfactory phosphatability. It is a high-strength hot-dip galvannealed steel sheet which includes a base steel sheet and, arranged on at least one side thereof, an Fe—Zn alloyed galvanized layer. The base steel sheet contains 0.03% to 0.3% of carbon, 0.5% to 3.0% of silicon, and 0.5% to 3.5% of manganese, with the remainder including iron and inevitable impurities. The Fe—Zn alloyed galvanized layer has a concentration of silicon present as an oxide of [Si] (percent by mass) and a concentration of manganese present as an oxide of [Mn] (percent by mass), and these parameters satisfy the following conditions (1) and (2): [Si]?0.25??(1) [Mn]/[Si]?3.0??(2).Type: GrantFiled: January 7, 2008Date of Patent: April 15, 2014Assignee: Kobe Steel, Ltd.Inventors: Hiroshi Irie, Takatoshi Yoshida
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Publication number: 20140030547Abstract: A high tensile strength hot-dip galvannealed steel sheet having excellent coated-layer adhesiveness in which the hot-dip galvannealed layer does not peel off from a base steel sheet even in being subjected to working accompanied by sliding and a method for producing the same are provided. In the high tensile strength hot-dip galvannealed steel sheet, a hot-dip galvannealed layer is formed on the surface of the base steel sheet, the base steel sheet contains Si by 0.04-2.5%, and, when the surface roughness of the base steel sheet after the hot-dip galvannealed layer is removed by dissolution with an acid is measured for a plurality of locations by a laser microscope, the arithmetic mean inclination angle (R?a) is 23.0° or more and the root mean square inclination angle (R?q) is 29.0° or more in 60% or more of all of the locations measured.Type: ApplicationFiled: April 20, 2011Publication date: January 30, 2014Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Minoru Chida, Hiroshi Irie