Patents by Inventor Mitsuhiro Kitao

Mitsuhiro Kitao 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).

  • Method of manufacturing a thin-film magnetic head, thin-film magnetic head manufacturing apparatus, and thin-film magnetic head manufacturing system
    Patent number: 7892442
    Abstract: A method of manufacturing a thin-film magnetic head works a part to be worked to a target length by carrying out an etching process on an object to be worked using an etching apparatus.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: February 22, 2011
    Assignee: TDK Corporation
    Inventors: Hiroo Sawada, Jun Shouji, Mitsuhiro Kitao, Eiji Yamada
  • METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD, THIN-FILM MAGNETIC HEAD MANUFACTURING APPARATUS, AND THIN-FILM MAGNETIC HEAD MANUFACTURING SYSTEM
    Publication number: 20080217287
    Abstract: A method of manufacturing a thin-film magnetic head works a part to be worked to a target length by carrying out an etching process on an object to be worked using an etching apparatus.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Applicant: TDK CORPORATION
    Inventors: Hiroo SAWADA, Jun SHOUJI, Mitsuhiro KITAO, Eiji YAMADA
  • Thin film magnetic head and manufacturing method thereof
    Patent number: 6198600
    Abstract: The present invention is directed to a thin film magnetic head and its manufacturing method. A slider 1 is provided with base body surfaces 13 and 14 at its surface facing opposite a medium. An inductive thin film magnetic transducer 2 is provided with a first pole tip P1 and a second pole tip P2 whose front ends emerge at the base body surfaces 13 and 14 and indented portions 4 and 5 provided at the base body surfaces 13 and 14. A protective film 10 covers the base body surfaces 13 and 14 and indented portions 4 and 5. The thickness of the protective film 10 at the indented portions 4 and 5 is larger than the thickness at the base body surfaces 13 and 14. The magnetic films constituting the pole tips P1 and P2 can thus be reliably protected from oxidation, corrosion and the like, while minimizing the spacing loss.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: March 6, 2001
    Assignee: TDK Corporation
    Inventors: Mitsuhiro Kitao, Hiroki Nakazawa, Keiichi Shibata, Monjiro Momoi, Noboru Yamanaka