Patents by Inventor Mitsukuni Ikeda

Mitsukuni Ikeda 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 for preparing carbon nano-fine particle, apparatus for preparing the same and mono-layer carbon nanotube
    Patent number: 6989083
    Abstract: A graphite cathode and a graphite anode are placed opposite each other through an insulating plate having a notch. A voltage is applied between both of the electrodes to generate arc discharge at the notch of the insulating plate. A given area of the graphite anode is evaporated from an electrode point of the arc discharge, and simultaneously an arc jet is generated from the notch. Thereby, a carbon nanoparticle comprising soot of carbon nanomaterial containing carbon nanohorn is generated. The soot is deposited on a recovering plate for recovery.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: January 24, 2006
    Assignees: Futaba Corporation, Tokai Carbon Co., Ltd.
    Inventors: Hirofumi Takikawa, Mitsukuni Ikeda, Shigeo Itoh, Tomonori Tahara
  • Method for preparing carbon nano-fine particle, apparatus for preparing the same and mono-layer carbon nanotube
    Publication number: 20030188963
    Abstract: A graphite cathode and a graphite anode are placed opposite each other through an insulating plate having a notch. A voltage is applied between both of the electrodes to generate arc discharge at the notch of the insulating plate. A given area of the graphite anode is evaporated from an electrode point of the arc discharge, and simultaneously an arc jet is generated from the notch. Thereby, a carbon nanoparticle comprising soot of carbon nanomaterial containing carbon nanohorn is generated. The soot is deposited on a recovering plate for recovery.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 9, 2003
    Inventors: Hirofumi Takikawa, Mitsukuni Ikeda, Shigeo Itoh, Tomonori Tahara