Patents by Inventor O UYAMA

O UYAMA 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).

  • Non-oriented electrical steel sheet
    Patent number: 11279985
    Abstract: A non-oriented electrical steel sheet includes, as a chemical composition, by mass %: C: 0.0015% to 0.0040%; Si: 3.5% to 4.5%; Al: 0.65% or less; Mn: 0.2% to 2.0%; Sn: 0% to 0.20%; Sb: 0% to 0.20%; P: 0.005% to 0.150%; S: 0.0001% to 0.0030%; Ti: 0.0030% or less; Nb: 0.0050% or less; Zr: 0.0030% or less; Mo: 0.030% or less; V: 0.0030% or less; N: 0.0010% to 0.0030%; O: 0.0010% to 0.0500%; Cu: less than 0.10%; Ni: less than 0.50%; and a remainder including Fe and impurities, in which a product sheet thickness is 0.10 mm to 0.30 mm, an average grain size is 10 ?m to 40 ?m, an iron loss W10/800 is 50 W/Kg or less, a tensile strength is 580 MPa to 700 MPa, and a yield ratio is 0.82 or more.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: March 22, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yoshiaki Natori, Kazutoshi Takeda, Hiroyoshi Yashiki, Miho Tomita, Hiroshi Fujimura, Takeaki Wakisaka, Tesshu Murakawa, Takuya Matsumoto, Hiroki Hori, Yuuya Gohmoto, O Uyama
  • NON-ORIENTED ELECTRICAL STEEL SHEET
    Publication number: 20200040423
    Abstract: A non-oriented electrical steel sheet includes, as a chemical composition, by mass %: C: 0.0015% to 0.0040%; Si: 3.5% to 4.5%; Al: 0.65% or less; Mn: 0.2% to 2.0%; Sn: 0% to 0.20%; Sb: 0% to 0.20%; P: 0.005% to 0.150%; S: 0.0001% to 0.0030%; Ti: 0.0030% or less; Nb: 0.0050% or less; Zr: 0.0030% or less; Mo: 0.030% or less; V: 0.0030% or less; N: 0.0010% to 0.0030%; O: 0.0010% to 0.0500%; Cu: less than 0.10%; Ni: less than 0.50%; and a remainder including Fe and impurities, in which a product sheet thickness is 0.10 mm to 0.30 mm, an average grain size is 10 ?m to 40 ?m, an iron loss W10/800 is 50 W/Kg or less, a tensile strength is 580 MPa to 700 MPa, and a yield ratio is 0.82 or more.
    Type: Application
    Filed: July 19, 2018
    Publication date: February 6, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yoshiaki NATORI, Kazutoshi TAKEDA, Hiroyoshi YASHIKI, Miho TOMITA, Hiroshi FUJIMURA, Takeaki WAKISAKA, Tesshu MURAKAWA, Takuya MATSUMOTO, Hiroki HORI, Yuuya GOHMOTO, O UYAMA