Patents by Inventor Iwata Norihiro

Iwata Norihiro 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).

  • Zig-zag MIMO head reducing space between three sensors
    Patent number: 9336802
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: May 10, 2016
    Assignee: HGST Netherlands B.V.
    Inventors: Hideki Mashima, Nobuo Yoshida, Iwata Norihiro, Tsutomu Yasuda
  • ZIG-ZAG MIMO HEAD REDUCING SPACE BETWEEN THREE SENSORS
    Publication number: 20150287427
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Application
    Filed: June 18, 2015
    Publication date: October 8, 2015
    Inventors: Hideki MASHIMA, Nobuo YOSHIDA, Iwata NORIHIRO, Tsutomu YASUDA
  • ZIG-ZAG MIMO HEAD REDUCING SPACE BETWEEN THREE SENSORS
    Publication number: 20150221329
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 6, 2015
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Hideki MASHIMA, Nobuo YOSHIDA, Iwata NORIHIRO, Tsutomu YASUDA
  • Zig-zag MIMO head reducing space between three sensors
    Patent number: 9082436
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 14, 2015
    Assignee: HGST NETHERLANDS B.V.
    Inventors: Hideki Mashima, Nobuo Yoshida, Iwata Norihiro, Tsutomu Yasuda