Patents by Inventor Chuuji Igarashi

Chuuji Igarashi 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).

  • MAGNETORESISTANCE DEVICE INCLUDING LAYERED FERROMAGNETIC STRUCTURE, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20140346625
    Abstract: A layered ferromagnetic structure is composed of a first ferromagnetic layer positioned over a substrate; a second ferromagnetic layer positioned over the first ferromagnetic layer; and a first non-magnetic layer placed between the first and second ferromagnetic layers. The top surface of the first ferromagnetic layer is in contact with the first non-magnetic layer. The first ferromagnetic layer includes a first orientation control buffer that exhibits an effect of enhancing crystalline orientation of a film formed thereon.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Applicant: NEC CORPORATION
    Inventors: Yoshiyuki FUKUMOTO, Chuuji IGARASHI
  • Magnetoresistance device including layered ferromagnetic structure, and method of manufacturing the same
    Patent number: 8865326
    Abstract: A layered ferromagnetic structure is composed of a first ferromagnetic layer positioned over a substrate; a second ferromagnetic layer positioned over the first ferromagnetic layer; and a first non-magnetic layer placed between the first and second ferromagnetic layers. The top surface of the first ferromagnetic layer is in contact with the first non-magnetic layer. The first ferromagnetic layer includes a first orientation control buffer that exhibits an effect of enhancing crystalline orientation of a film formed thereon.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: October 21, 2014
    Assignee: NEC Corporation
    Inventors: Yoshiyuki Fukumoto, Chuuji Igarashi
  • MAGNETORESISTANCE DEVICE INCLUDING LAYERED FERROMAGNETIC STRUCTURE, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20100276771
    Abstract: A layered ferromagnetic structure is composed of a first ferromagnetic layer positioned over a substrate; a second ferromagnetic layer positioned over the first ferromagnetic layer; and a first non-magnetic layer placed between the first and second ferromagnetic layers. The top surface of the first ferromagnetic layer is in contact with the first non-magnetic layer. The first ferromagnetic layer includes a first orientation control buffer that exhibits an effect of enhancing crystalline orientation of a film formed thereon.
    Type: Application
    Filed: July 12, 2010
    Publication date: November 4, 2010
    Applicant: NEC CORPORATION
    Inventors: Yoshiyuki FUKUMOTO, Chuuji IGARASHI
  • Magnetoresistance device including layered ferromagnetic structure, and method of manufacturing the same
    Publication number: 20060180839
    Abstract: A layered ferromagnetic structure is composed of a first ferromagnetic layer positioned over a substrate; a second ferromagnetic layer positioned over the first ferromagnetic layer; and a first non-magnetic layer placed between the first and second ferromagnetic layers. The top surface of the first ferromagnetic layer is in contact with the first non-magnetic layer. The first ferromagnetic layer includes a first orientation control buffer that exhibits an effect of enhancing crystalline orientation of a film formed thereon.
    Type: Application
    Filed: February 15, 2006
    Publication date: August 17, 2006
    Inventors: Yoshiyuki Fukumoto, Chuuji Igarashi