Patents by Inventor Michiro Komatubara

Michiro Komatubara 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).

  • Low-iron-loss grain-oriented electromagnetic steel sheet and method of producing the same
    Patent number: 5665455
    Abstract: A low-iron-loss grain-oriented electromagnetic steel sheet is provided with the multiplicity of linear grooves formed in a surface thereof to extend in a direction substantially perpendicular to the direction of rolling of the steel sheet at a predetermined pitch in the direction of rolling, and a multiplicity of linear high dislocation density regions introduced to extend in a direction substantially perpendicular to the direction of rolling of the steel sheet at a predetermined pitch in the direction of rolling. The pitches l.sub.1 and l.sub.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: September 9, 1997
    Assignee: Kawasaki Steel Corporation
    Inventors: Seiji Sato, Masayoshi Ishida, Kunihiro Senda, Kazuhiro Suzuki, Michiro Komatubara