Patents by Inventor Toru Iseda

Toru Iseda 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 and apparatus for breaking and cutting a glass ribbon
    Patent number: 5871134
    Abstract: For breaking and cutting a glass to obtain a glass plate having a rectangular shape, a first preliminary break is formed in a portion of a glass ribbon near a side edge of the glass ribbon along a first planned breaking and cutting line perpendicular to a transferring direction of the glass ribbon. Local heating is movably applied to a portion of the first preliminary break near an end of the first preliminary break to progress a first actual breaking and cutting line therefrom. A first bending moment is applied along the first planned breaking and cutting line to break and cut the glass ribbon in a direction substantially perpendicular to the transferring direction so as to obtain a glass plate. Second preliminary breaks are formed in an end of the glass plate along second planned breaking and cutting lines substantially parallel with the transferring direction.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: February 16, 1999
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuyuki Komagata, Toru Iseda
  • Magnetic recording medium and method for its production
    Patent number: 5464674
    Abstract: A magnetic recording medium comprising a magnetic recording layer and at least one protective layer formed on the recording layer, wherein the outermost protective layer on the side exposed to air is made of an oxide film.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: November 7, 1995
    Assignee: Asahi Glass Company Ltd.
    Inventors: Ichiro Makino, Akira Mitsui, Mikio Takehara, Eiichi Ando, Junichi Ebisawa, Koichi Suzuki, Kiyoshi Matsumoto, Toru Iseda, Susumu Suzuki
  • Method for producing a specified zirconium-silicon amorphous oxide film composition by sputtering
    Patent number: 5209835
    Abstract: A magnetic recording medium comprising a magnetic recording layer and at least one protective layer formed on the recording layer, wherein the outermost protective layer on the side exposed to air is made of an oxide film.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: May 11, 1993
    Assignee: Asahi Glass Company Ltd.
    Inventors: Ichiro Makino, Akira Mitsui, Mikio Takehara, Eiichi Ando, Junichi Ebisawa, Koichi Suzuki, Kiyoshi Matsumoto, Toru Iseda, Susumu Suzuki
  • Method for texturing a magnetic disk silicate glass substrate
    Patent number: 5087481
    Abstract: A glass disk is subjected to a chemical or gentle mechanical polishing step to remove microcracks or scratches in the disk surface prior to chemically texturing the disk. Thereafter, magnetic media is deposited onto the glass disk. We have discovered that by performing this pre-texturing polishing step, we can avoid the phenomenon of "linkage bumps," which could otherwise cause the resulting magnetic disk to fail a glide-type test or to cause a read/write head crash.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: February 11, 1992
    Assignees: Komag, Inc., Asahi Glass Co., Ltd.
    Inventors: Tu Chen, Toru Iseda, Kazuo Mannami
  • Metallic coating method using ultrasonic vibration
    Patent number: 4307128
    Abstract: A metallic coating method is carried out by contacting a surface of a substrate with a molten metal which is locally raised under ultrasonic vibration. A metallic coating can be continuously attained on one side only of ribbon type substrate in a form of plate, sheet or strip or only the outer surface of a pipe.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: December 22, 1981
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Kentaro Nagano, Toru Iseda