Patents by Inventor Teruhisa Shindo

Teruhisa Shindo 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).

  • Manufacturing method of a thin-film magnetic head
    Patent number: 7712204
    Abstract: A manufacturing method of a thin-film head includes the steps of, laminating and patterning a soft magnetic layer with iron alloy that contains silicon and aluminum through a base layer on a substrate; laminating an insulating layer on the patterned soft magnetic layer; performing a chemical-mechanical polishing of a surface of the laminated insulating layer and the patterned soft magnetic layer with a first acid slurry; forming a lower shield layer by a mechanical polishing with a second weak acid, or neutral slurry with a pH different from that of the first slurry; and forming a lower shield gap layer and a magnetoresistive effect layer on the lower shield layer.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: May 11, 2010
    Assignee: TDK Corporation
    Inventors: Kazuhiko Maejima, Makoto Hasegawa, Atsuhiro Nonaka, Hiroshi Kamiyama, Teruhisa Shindo, Hiroshi Yamazaki
  • Polishing method of soft magnetic layer in thin-film magnetic head, manufacturing method of thin-film magnetic head and thin-film magnetic head
    Publication number: 20070230064
    Abstract: A polishing method includes the steps of, performing a chemical-mechanical polishing with a first acid slurry, in the case of polishing soft magnetic layer with iron alloy that contains silicon and aluminum, and performing a mechanical polishing with a second weak acid or neutral slurry with a pH different from that of the first slurry.
    Type: Application
    Filed: February 27, 2007
    Publication date: October 4, 2007
    Applicant: TDK Corporation
    Inventors: Kazukiko Maejima, Makoto Hasegawa, Atsuhiro Nonaka, Hiroshi Kamiyama, Teruhisa Shindo, Hiroshi Yamazaki