Patents by Inventor Kaoru Usui

Kaoru Usui 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).

  • Patent number: 5513765
    Abstract: A plasma generating apparatus includes a vacuum chamber, an inductive-coupling coil wound around the vacuum chamber, a pair of parallel-planar electrodes, each of which electrode has a center on a central axis of the inductive-coupling coil within the vacuum chamber, and is disposed vertically against the central axis, a radio-frequency power supply, and a radio-frequency matching circuit coupled to the radio-frequency power supply. The radio-frequency matching circuit is coupled to at least one of the inductive-coupling coil and the pair of parallel-planar electrodes. The pair of parallel-planar electrodes and the inductive-coupling coil driven by the radio-frequency power supply carry out capacitive-coupling and inductive-coupling so as to be associated with each other, so that capacitively-coupled plasma and inductively-coupled plasma are generated within the vacuum chamber.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: May 7, 1996
    Assignee: Fujitsu Limited
    Inventor: Kaoru Usui