Patents Assigned to Nippon ITF Inc.
  • Patent number: 7955691
    Abstract: An amorphous hard carbon film comprising a first amorphous carbon layer substantially consists only of carbon formed on a substrate surface and a second amorphous carbon layer substantially consists only of carbon formed on the surface of the first amorphous carbon layer, wherein the transmission electron microscope image of the first amorphous carbon layer is brighter than that of the second amorphous carbon layer when the cross section is observed.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: June 7, 2011
    Assignees: Kabushiki Kaisha Riken, Nippon ITF, Inc.
    Inventors: Masaki Moronuki, Takashi Matsui, Yoshiharu Utsumi, Hisanori Ohara
  • Patent number: 6998034
    Abstract: An arc evaporation source constituting this vacuum arc deposition apparatus has a plurality of cathodes, a trigger electrode, a trigger drive unit, a shutter, and a shutter drive unit. The trigger drive unit changes over the position of the trigger electrode to thereby position the trigger electrode in front of a desired cathode, and connects/disconnects the trigger electrode to/from the desired cathode in the changed-over position. The shutter covers the fronts of all the cathodes except the desired cathode. The shutter drive unit moves the shutter to thereby change over the cathode not covered with the shutter. Further, the vacuum arc deposition apparatus has a changeover control unit for controlling the shutter drive unit and the trigger drive unit to thereby change over the cathode not covered with the shutter and to thereby position the trigger electrode in front of the cathode not covered with the shutter.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: February 14, 2006
    Assignees: Nissin Electric Co., Ltd., Nippon ITF Inc.
    Inventors: Makoto Setoyama, Kazuhiko Irisawa, Hideo Yanashima
  • Publication number: 20040134771
    Abstract: An arc evaporation source constituting this vacuum arc deposition apparatus has a plurality of cathodes, a trigger electrode, a trigger drive unit, a shutter, and a shutter drive unit. The trigger drive unit changes over the position of the trigger electrode to thereby position the trigger electrode in front of a desired cathode, and connects/disconnects the trigger electrode to/from the desired cathode in the changed-over position. The shutter covers the fronts of all the cathodes except the desired cathode..: The shutter drive unit moves the shutter to thereby change over the cathode not covered with the shutter. Further, the vacuum arc deposition apparatus has a changeover control unit for controlling the shutter drive unit and the trigger drive unit to thereby change over the cathode not covered with the shutter and to thereby position the trigger electrode in front of the cathode not covered with the shutter.
    Type: Application
    Filed: July 21, 2003
    Publication date: July 15, 2004
    Applicants: Nissin Electric Co. Ltd., Nippon ITF Inc.
    Inventors: Makoto Setoyama, Kazuhiko Irisawa, Hideo Yanashima