Patents by Inventor Shinji Iwanaga

Shinji Iwanaga 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).

  • CHARGED PARTICLE BEAM TREATMENT APPARATUS AND METHOD OF ADJUSTING PATH LENGTH OF CHARGED PARTICLE BEAM
    Publication number: 20150270098
    Abstract: A charged particle beam treatment apparatus includes: an accelerator configured to emit a charged particle beam by accelerating charged particles; an irradiation portion configured to irradiate an irradiation object with the charged particle beam through a scanning method; a transport line configured to transport the charged particle beam emitted from the accelerator to the irradiation portion; an energy adjusting portion configured to adjust energy of the charged particle beam; an electromagnet which is provided in the irradiation portion or the transport line; an electromagnet power source which is connected to the electromagnet; and a control portion. Semiconductors are connected between the electromagnet power source and the electromagnet in series. When switching a layer of the irradiation object to be irradiated with the charged particle beam, the control portion reduces the energy of the charged particle beam by controlling the energy adjusting portion and increases a resistance of the semiconductors.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 24, 2015
    Inventor: Shinji IWANAGA
  • Charged particle beam treatment apparatus and method of adjusting path length of charged particle beam
    Patent number: 9142385
    Abstract: A charged particle beam treatment apparatus includes: an accelerator configured to emit a charged particle beam by accelerating charged particles; an irradiation portion configured to irradiate an irradiation object with the charged particle beam through a scanning method; a transport line configured to transport the charged particle beam emitted from the accelerator to the irradiation portion; an energy adjusting portion configured to adjust energy of the charged particle beam; an electromagnet which is provided in the irradiation portion or the transport line; an electromagnet power source which is connected to the electromagnet; and a control portion. Semiconductors are connected between the electromagnet power source and the electromagnet in series. When switching a layer of the irradiation object to be irradiated with the charged particle beam, the control portion reduces the energy of the charged particle beam by controlling the energy adjusting portion and increases a resistance of the semiconductors.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: September 22, 2015
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Shinji Iwanaga