Patents Assigned to Norboru Tsuya
  • High silicon steel thin strips and a method for producing the same
    Patent number: 4265682
    Abstract: A high silicon steel strip having excellent magnetic properties and good workability, and having a composition consisting of 4-10% by weight of silicon and the remainder being substantially iron and incidental impurities is produced by cooling super rapidly the high silicon steel melt on a cooling substrate to form a thin strip having micro-structure comprising very fine crystal grains having substantially no ordered lattice.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: May 5, 1981
    Assignee: Norboru Tsuya
    Inventors: Noboru Tsuya, Kenichi Arai