Patents by Inventor Satoru Fukiage

Satoru Fukiage 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).

  • MAGNETIC TAPE, ITS CLEANING METHOD, AND OPTICAL SERVOTRACK FORMING/CLEANING APPARATUS
    Publication number: 20150056474
    Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of (Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Hiroyuki OTA, Haruhiko FUJISAWA, Naoki MUKAI, Satoru FUKIAGE, Kenji SANO, Shigeo FUJITANI
  • Magnetic tape, method of cleaning the same, and apparatus for forming and cleaning optical servo tracks
    Publication number: 20100319728
    Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of(Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.
    Type: Application
    Filed: August 24, 2010
    Publication date: December 23, 2010
    Inventors: Hiroyuki OTA, Haruhiko Fujisawa, Naoki Mukai, Satoru Fukiage, Kenji Sano, Shigeo Fujitani
  • Magnetic tape, its cleaning method, and optical servotrack forming/cleaning apparatus
    Patent number: 7803471
    Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of (Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: September 28, 2010
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hiroyuki Ota, Haruhiko Fujisawa, Naoki Mukai, Satoru Fukiage, Kenji Sano, Shigeo Fujitani