Patents by Inventor Masayasu Ueno

Masayasu Ueno 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).

  • Patent number: 11447841
    Abstract: To provide a high-strength steel sheet with excellent ductility and hole expansion formability, a yield ratio of less than 68%, and a tensile strength of 590 MPa or more, by having a predetermined chemical composition and a microstructure where ferrite is 35% or more and 80% or less and martensite is 5% or more and 25% or less in area ratio, retained austenite is 8% or more in volume fraction, the average grain size of ferrite, martensite and retained austenite is 6.0 ?m or less, 3.0 ?m or less and 3.0 ?m or less respectively, the average aspect ratio of crystal grain of ferrite, martensite and retained austenite is each more than 2.0 and 15.0 or less, and the value obtained by dividing the Mn content (mass %) in retained austenite by the Mn content (mass %) in ferrite is 2.0 or more.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 20, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshiyasu Kawasaki, Takako Yamashita, Masayasu Ueno, Yuki Toji, Takashi Kobayashi, Yoshimasa Funakawa
  • Patent number: 11447840
    Abstract: To provide a high-strength steel sheet with excellent ductility and hole expansion formability, a yield ratio of less than 68%, and a tensile strength of 980 MPa or more, by having a predetermined chemical composition and a microstructure where ferrite is 15% or more and 55% or less and martensite is 15% or more and 30% or less in area ratio, retained austenite is 12% or more in volume fraction, the average grain size of ferrite, martensite and retained austenite is 4.0 ?m or less, 2.0 ?m or less and 2.0 ?m or less respectively, the average aspect ratio of crystal grain of ferrite, martensite and retained austenite is each more than 2.0 and 15.0 or less, and the value obtained by dividing the Mn content (mass %) in retained austenite by the Mn content (mass %) in ferrite is 2.0 or more.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 20, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshiyasu Kawasaki, Takako Yamashita, Masayasu Ueno, Yuki Toji, Takashi Kobayashi, Yoshimasa Funakawa
  • Patent number: 10428403
    Abstract: Disclosed is a method for manufacturing a grain-oriented electrical steel sheet using an inhibitor-less technique, in which cold rolling includes final cold rolling with a total cold rolling reduction being set to 85% or more and a rolling reduction per pass being set to 32% or more. The final cold rolling includes one or more passes and a final pass succeeding the one or more passes and uses work rolls having a surface roughness Ra of 0.25 ?m or less in at least one of the one or more passes other than the final pass. According to this method, it is possible to stably manufacture a grain-oriented electrical steel sheet exhibiting excellent magnetic properties at low cost.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: October 1, 2019
    Assignee: JFE STEEL CORPORATION
    Inventors: Yasuyuki Hayakawa, Masayasu Ueno
  • Publication number: 20190284656
    Abstract: To provide a high-strength steel sheet with excellent ductility and hole expansion formability, a yield ratio of less than 68%, and a tensile strength of 980 MPa or more, by having a predetermined chemical composition and a microstructure where ferrite is 15% or more and 55% or less and martensite is 15% or more and 30% or less in area ratio, retained austenite is 12% or more in volume fraction, the average grain size of ferrite, martensite and retained austenite is 4.0 ?m or less, 2.0 ?m or less and 2.0 ?m or less respectively, the average aspect ratio of crystal grain of ferrite, martensite and retained austenite is each more than 2.0 and 15.0 or less, and the value obtained by dividing the Mn content (mass %) in retained austenite by the Mn content (mass %) in ferrite is 2.0 or more.
    Type: Application
    Filed: November 15, 2017
    Publication date: September 19, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Yoshiyasu KAWASAKI, Takako YAMASHITA, Masayasu UENO, Yuki TOJI, Takashi KOBAYASHI, Yoshimasa FUNAKAWA
  • Publication number: 20190276907
    Abstract: A steel sheet having TS of 590 MPa or more and YR of 68% or more is obtained by providing a predetermined chemical composition and a predetermined steel microstructure, where an average aspect ratio of crystal grains of each phase (polygonal ferrite, martensite, and retained austenite) is 2.0 or more and 15.0 or less, wherein the polygonal ferrite has an average grain size of 6 ?m or less, the martensite has an average grain size of 3 ?m or less, the retained austenite has an average grain size of 3 ?m or less, and a value obtained by dividing a Mn content in the retained austenite in mass % by a Mn content in the polygonal ferrite in mass % equals 2.0 or more.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 12, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Takako YAMASHITA, Yoshiyasu KAWASAKI, Takashi KOBAYASHI, Masayasu UENO, Yasunobu NAGATAKI
  • Publication number: 20190271051
    Abstract: To provide a high-strength steel sheet with excellent ductility and hole expansion formability, a yield ratio of less than 68%, and a tensile strength of 590 MPa or more, by having a predetermined chemical composition and a microstructure where ferrite is 35% or more and 80% or less and martensite is 5% or more and 25% or less in area ratio, retained austenite is 8% or more in volume fraction, the average grain size of ferrite, martensite and retained austenite is 6.0 ?m or less, 3.0 ?m or less and 3.0 ?m or less respectively, the average aspect ratio of crystal grain of ferrite, martensite and retained austenite is each more than 2.0 and 15.0 or less, and the value obtained by dividing the Mn content (mass %) in retained austenite by the Mn content (mass %) in ferrite is 2.0 or more.
    Type: Application
    Filed: November 15, 2017
    Publication date: September 5, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Yoshiyasu KAWASAKI, Takako YAMASHITA, Masayasu UENO, Yuki TOJI, Takashi KOBAYASHI, Yoshimasa FUNAKAWA
  • Patent number: 10259027
    Abstract: A cold rolling facility includes: a heating device; a tandem mill including a plurality of rolling mills; a meandering-amount measuring unit; a meandering-movement correction device; a shape measuring unit; a shape controller configured to control a shape of a steel sheet after being cold-rolled by the rolling mill located on the uppermost stream side; and a controller configured to control operations of the meandering-movement correction device based on a measurement value of a meandering-movement amount of the steel sheet by the meandering-amount measuring unit to control a meandering movement of the steel sheet before being heated, and configured to control operations of the shape controller based on a measurement value of a shape of the steel sheet by the shape measuring unit to control the meandering movement of the steel sheet that is attributed to cold rolling of the steel sheet by the tandem mill.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 16, 2019
    Assignee: JFE Steel Corporation
    Inventors: Masayasu Ueno, Yoshimitsu Harada, Hidemasa Kodama, Tatsuhito Fukushima
  • Publication number: 20190106760
    Abstract: A steel sheet having TS of 980 MPa or more and YR of 68% or more is obtained by providing a predetermined chemical composition and a predetermined steel microstructure, where an average aspect ratio of crystal grains of each phase (polygonal ferrite, martensite, and retained austenite) is 2.0 or more and 20.0 or less, wherein the polygonal ferrite has an average grain size of 4 ?m or less, the martensite has an average grain size of 2 ?m or less, the retained austenite has an average grain size of 2 ?m or less, and a value obtained by dividing a Mn content in the retained austenite in mass % by a Mn content in the polygonal ferrite in mass % equals 2.0 or more.
    Type: Application
    Filed: March 8, 2017
    Publication date: April 11, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Takako YAMASHITA, Yoshiyasu KAWASAKI, Takashi KOBAYASHI, Masayasu UENO, Yasunobu NAGATAKI
  • Patent number: 10207303
    Abstract: A cold rolling apparatus includes: a heating device configured to heat a sequentially transferred steel sheet; a cold rolling mill configured to sequentially cold-roll the steel sheet after being heated; a meandering-movement correction device arranged on an upstream side of the heating device in a transfer direction of the steel sheet, and configured to correct a meandering movement of the steel sheet transferred toward the heating device; and a meandering-movement suppression device arranged between the heating device and the cold rolling mill, and configured to suppress a meandering movement of the steel sheet attributed to the cold rolling of the steel sheet by using the cold rolling mill.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: February 19, 2019
    Assignee: JFE Steel Corporation
    Inventors: Masayasu Ueno, Yoshimitsu Harada, Hidemasa Kodama, Tatsuhito Fukushima
  • Patent number: 10093510
    Abstract: Provided is a paper sheet storage unit and an automatic teller machine with which storage space can be partitioned while maintaining operability with respect to paper currency. The paper sheet storage unit is equipped with: a partition member that partitions a storage space for paper sheets into multiple storage spaces, and has a recessed portion at a position where the paper sheets are removed; and a door that has a protruding portion for filling the recessed portion at a position corresponding to the recessed portion, and that opens/closes an opening that includes the multiple storage spaces.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 9, 2018
    Assignee: HITACHI-OMRON TERMINAL SOLUTIONS, CORP.
    Inventors: Junji Fujita, Masayasu Ueno
  • Patent number: 9968957
    Abstract: A coating device includes: a first roll including a roll surface on which an application liquid is deposited; a first scratch off member configured to scratch off the application liquid from the roll surface of the first roll; a second roll including a roll surface configured to contact with the roll surface of the first roll, wherein the second roll is configured to rotate in a rotation direction opposite to a rotation direction of the first roll, the application liquid is transferred from the roll surface of the first roll to the roll surface of the second roll, and the second roll is configured to transfer the transferred application liquid to a steel strip; and a second scratch off member configured to scratch off the application liquid from the roll surface of the second roll.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: May 15, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Hirokazu Kobayashi, Masayasu Ueno, Junichi Toriu
  • Publication number: 20180082509
    Abstract: Provided is a paper sheet storage unit and an automatic teller machine with which storage space can be partitioned while maintaining operability with respect to paper currency. The paper sheet storage unit is equipped with: a partition member that partitions a storage space for paper sheets into multiple storage spaces, and has a recessed portion at a position where the paper sheets are removed; and a door that has a protruding portion for filling the recessed portion at a position corresponding to the recessed portion, and that opens/closes an opening that includes the multiple storage spaces.
    Type: Application
    Filed: March 22, 2016
    Publication date: March 22, 2018
    Applicant: Hitachi-Omron Terminal Solutions, Corp.
    Inventors: Junji FUJITA, Masayasu UENO
  • Publication number: 20170321296
    Abstract: Disclosed is a method for manufacturing a grain-oriented electrical steel sheet using an inhibitor-less technique, in which cold rolling includes final cold rolling with a total cold rolling reduction being set to 85% or more and a rolling reduction per pass being set to 32% or more. The final cold rolling includes one or more passes and a final pass succeeding the one or more passes and uses work rolls having a surface roughness Ra of 0.25 ?m or less in at least one of the one or more passes other than the final pass. According to this method, it is possible to stably manufacture a grain-oriented electrical steel sheet exhibiting excellent magnetic properties at low cost.
    Type: Application
    Filed: November 26, 2015
    Publication date: November 9, 2017
    Applicant: JFE STEEL CORPORATION
    Inventors: Yasuyuki HAYAKAWA, Masayasu UENO
  • Patent number: 9589410
    Abstract: Provided is a paper money handling apparatus of which the security of a paper money process unit is improved, the jam is easily removed, and the layout is easily changed while the operability thereof is ensured. The paper money handling apparatus includes a repository, a temporary storage container, and a money deposit/withdrawal slot. The repository is provided inside a safe so as to store paper money therein. The temporary storage container is provided inside the safe so as to temporarily store deposited paper money therein during a transaction. The money deposit/withdrawal slot serves as an entry/exit opening of a paper money passageway provided at the upper part of the safe so as to communicate with the repository and the temporary storage container.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: March 7, 2017
    Assignee: Hitachi-Omron Terminal Solutions, Corp.
    Inventors: Akira Nishino, Masayasu Ueno, Takeshi Kanagawa, Yukihiro Mabuchi
  • Publication number: 20160339493
    Abstract: A cold rolling facility includes: a heating device; a tandem mill including a plurality of rolling mills; a meandering-amount measuring unit; a meandering-movement correction device; a shape measuring unit; a shape controller configured to control a shape of a steel sheet after being cold-rolled by the rolling mill located on the uppermost stream side; and a controller configured to control operations of the meandering-movement correction device based on a measurement value of a meandering-movement amount of the steel sheet by the meandering-amount measuring unit to control a meandering movement of the steel sheet before being heated, and configured to control operations of the shape controller based on a measurement value of a shape of the steel sheet by the shape measuring unit to control the meandering movement of the steel sheet that is attributed to cold rolling of the steel sheet by the tandem mill.
    Type: Application
    Filed: January 9, 2015
    Publication date: November 24, 2016
    Applicant: JFE STEEL CORPORATION
    Inventors: Masayasu Ueno, Yoshimitsu Harada, Hidemasa Kodama, Tatsuhito Fukushima
  • Publication number: 20160332203
    Abstract: A cold rolling apparatus includes: a heating device configured to heat a sequentially transferred steel sheet; a cold rolling mill configured to sequentially cold-roll the steel sheet after being heated; a meandering-movement correction device arranged on an upstream side of the heating device in a transfer direction of the steel sheet, and configured to correct a meandering movement of the steel sheet transferred toward the heating device; and a meandering-movement suppression device arranged between the heating device and the cold rolling mill, and configured to suppress a meandering movement of the steel sheet attributed to the cold rolling of the steel sheet by using the cold rolling mill.
    Type: Application
    Filed: January 9, 2015
    Publication date: November 17, 2016
    Applicant: JFE STEEL CORPORATION
    Inventors: Masayasu Ueno, Yoshimitsu Harada, Hidemasa Kodama, Tatsuhito Fukushima
  • Publication number: 20160063793
    Abstract: Provided is a paper money handling apparatus of which the security of a paper money process unit is improved, the jam is easily removed, and the layout is easily changed while the operability thereof is ensured. The paper money handling apparatus includes a repository, a temporary storage container, and a money deposit/withdrawal slot. The repository is provided inside a safe so as to store paper money therein. The temporary storage container is provided inside the safe so as to temporarily store deposited paper money therein during a transaction. The money deposit/withdrawal slot serves as an entry/exit opening of a paper money passageway provided at the upper part of the safe so as to communicate with the repository and the temporary storage container.
    Type: Application
    Filed: June 3, 2013
    Publication date: March 3, 2016
    Applicant: Hitachi-Omron Terminal Solutions, Corp.
    Inventors: AKIRA NISHINO, Masayasu UENO, Takeshi KANAGAWA, Yukihiro MABUCHI
  • Publication number: 20160030968
    Abstract: A coating device includes: a first roll including a roll surface on which an application liquid is deposited; a first scratch off member configured to scratch off the application liquid from the roll surface of the first roll; a second roll including a roll surface configured to contact with the roll surface of the first roll, wherein the second roll is configured to rotate in a rotation direction opposite to a rotation direction of the first roll, the application liquid is transferred from the roll surface of the first roll to the roll surface of the second roll, and the second roll is configured to transfer the transferred application liquid to a steel strip; and a second scratch off member configured to scratch off the application liquid from the roll surface of the second roll.
    Type: Application
    Filed: March 4, 2014
    Publication date: February 4, 2016
    Inventors: Hirokazu KOBAYASHI, Masayasu UENO, Junichi TORIU
  • Patent number: 9208630
    Abstract: A paper-slip handling device with: a reduced stoppage rate and banknote rejection rate for a deposit/withdrawal device; improved ability to remove foreign material from banknote bundles; improved user-friendliness; and improved reliability, comprising: a deposit/withdrawal unit used for depositing and withdrawal of paper slips, a paper-slip identification unit that identifies paper slips, a temporary holding compartment that temporarily stores deposited paper slips, a plurality of paper-slip storage compartments, and a first paper-slip transport path via which paper slips are transported to the various aforementioned units. The deposit/withdrawal unit has an opening via which paper slips are transferred in a substantially horizontal state, a storage section that stores paper slips in a substantially upright state, and a second paper-slip transport path that connects said opening and storage section.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 8, 2015
    Assignee: Hitachi-Omron Terminal Solutions, Corp.
    Inventors: Junji Fujita, Masayasu Ueno, Youta Sasajima, Riichi Kato
  • Publication number: 20150136562
    Abstract: A paper-slip handling device with: a reduced stoppage rate and banknote rejection rate for a deposit/withdrawal device; improved ability to remove foreign material from banknote bundles; improved user-friendliness; and improved reliability, comprising: a deposit/withdrawal unit used for depositing and withdrawal of paper slips, a paper-slip identification unit that identifies paper slips, a temporary holding compartment that temporarily stores deposited paper slips, a plurality of paper-slip storage compartments, and a first paper-slip transport path via which paper slips are transported to the various aforementioned units. The deposit/withdrawal unit has an opening via which paper slips are transferred in a substantially horizontal state, a storage section that stores paper slips in a substantially upright state, and a second paper-slip transport path that connects said opening and storage section.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 21, 2015
    Applicant: Hitachi-Omron Terminal Solutions, Corporation
    Inventors: Junji Fujita, Masayasu Ueno, Youta Sasajima, Riichi Kato