Patents by Inventor Tomohiko Uchino

Tomohiko Uchino 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).

  • Ferritic stainless steel sheet and method of producing same
    Patent number: 11377702
    Abstract: A ferritic stainless steel sheet comprises: a predetermined chemical composition, wherein a difference between a maximum value and a minimum value of Vickers hardness in a thickness direction is HV 50 or less.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 5, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hidetaka Kawabe, Mitsuyuki Fujisawa, Hiroshi Shimizu, Tomohiko Uchino
  • Hot-rolled and annealed ferritic stainless steel sheet and method for manufacturing the same
    Patent number: 11174540
    Abstract: Provided is a hot-rolled and annealed ferritic stainless steel sheet excellent in surface quality after bending work has been performed. A hot-rolled and annealed ferritic stainless steel sheet has a thickness of 5.0 mm or more and a chemical composition containing, by mass %, C: 0.001% to 0.025%, Si: 0.05% to 0.70%, Mn: 0.05% to 0.50%, P: 0.050% or less, S: 0.01% or less, Cr: 10.0% to 18.0%, Ni: 0.01% to 1.00%, Al: 0.001% to 0.10%, N: 0.001% to 0.025%, Ti: 0.01% to 0.40%, and a balance of Fe and inevitable impurities, in which a difference between maximum and minimum values of an average crystal grain diameter determined by using measuring method 1 is 50 ?m or less, and in which a difference between maximum and minimum values of a crystal grain elongation rate determined by using measuring method 2 is 5.0 or less.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 16, 2021
    Assignee: JFE Steel Corporation
    Inventors: Hidetaka Kawabe, Mitsuyuki Fujisawa, Hiroshi Shimizu, Tomohiko Uchino
  • FERRITIC STAINLESS STEEL SHEET AND METHOD OF PRODUCING SAME
    Publication number: 20210269890
    Abstract: A ferritic stainless steel sheet comprises: a predetermined chemical composition, wherein a difference between a maximum value and a minimum value of Vickers hardness in a thickness direction is HV 50 or less.
    Type: Application
    Filed: April 22, 2019
    Publication date: September 2, 2021
    Applicant: JFE STEEL CORPORATION
    Inventors: Hidetaka KAWABE, Mitsuyuki FUJISAWA, Hiroshi SHIMIZU, Tomohiko UCHINO
  • HOT-ROLLED AND ANNEALED FERRITIC STAINLESS STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20200377980
    Abstract: Provided is a hot-rolled and annealed ferritic stainless steel sheet excellent in surface quality after bending work has been performed. A hot-rolled and annealed ferritic stainless steel sheet has a thickness of 5.0 mm or more and a chemical composition containing, by mass %, C: 0.001% to 0.025%, Si: 0.05% to 0.70%, Mn: 0.05% to 0.50%, P: 0.050% or less, S: 0.01% or less, Cr: 10.0% to 18.0%, Ni: 0.01% to 1.00%, Al: 0.001% to 0.10%, N: 0.001% to 0.025%, Ti: 0.01% to 0.40%, and a balance of Fe and inevitable impurities, in which a difference between maximum and minimum values of an average crystal grain diameter determined by using measuring method 1 is 50 ?m or less, and in which a difference between maximum and minimum values of a crystal grain elongation rate determined by using measuring method 2 is 5.0 or less.
    Type: Application
    Filed: September 21, 2018
    Publication date: December 3, 2020
    Applicant: JFE Steel Corporation
    Inventors: Hidetaka Kawabe, Mitsuyuki Fujisawa, Hiroshi Shimizu, Tomohiko Uchino