Patents by Inventor Masafumi Mochizuku

Masafumi Mochizuku 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).

  • Perpendicular magnetic head with side shield depth less than write gap film
    Patent number: 8437102
    Abstract: Embodiments in accordance with the present invention provide a magnetic head having a narrow track width and excellent in productivity for the purpose of realizing a disk storage unit having a large capacity. In a magnetic head having a plurality of flairs on a main magnetic pole, a side shield is formed via a non-magnetic film on both sides of the flair disposed close to an air bearing surface in such a fashion as to be aligned with the flair.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 7, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Yoji Maruyama, Takayuki Iwakura, Ichiro Ohdake, Masafumi Mochizuku
  • Perpendicular head with the shield which approaches through the continuous non-magnetic film to the flare point of the main pole
    Publication number: 20070146929
    Abstract: Embodiments in accordance with the present invention provide a magnetic head having a narrow track width and excellent in productivity for the purpose of realizing a disk storage unit having a large capacity. In a magnetic head having a plurality of flairs on a main magnetic pole, a side shield is formed via a non-magnetic film on both sides of the flair disposed close to an air bearing surface in such a fashion as to be aligned with the flair.
    Type: Application
    Filed: October 31, 2006
    Publication date: June 28, 2007
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Yoji Maruyama, Takayuki Iwakura, Ichiro Ohdake, Masafumi Mochizuku