Patents by Inventor Naoki Kawachi

Naoki Kawachi 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).

  • Particle radiation monitoring apparatus, recording medium to retain particle radiation monitoring program, and particle radiation monitoring method
    Patent number: 8909495
    Abstract: A particle radiation monitoring apparatus according to one aspect of the present invention includes a detecting unit to detect radioactive ray information of braking radiation from electrons undergoing action of particle beams incident on an irradiation body in accordance with a positional relation with the irradiation body and a calculating unit to calculate information on behaviors of the particle beams in the irradiation body from the radioactive ray information of the braking radiation corresponding to the positional relation that is detected by the detecting unit.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 9, 2014
    Assignee: Japan Atomic Energy Agency
    Inventors: Mitsutaka Yamaguchi, Naoki Kawachi, Takahiro Satoh, Tomihiro Kamiya, Kota Torikai, Takashi Nakano, Kazuo Arakawa, Hirofumi Shimada, Tadayuki Takahashi, Shin Watanabe, Motohide Kokubun
  • Compton camera
    Patent number: 8742360
    Abstract: Plural camera heads are each placed in a position capable of detection of radiation emitted from a radiation source. Compton cones obtained from the detection data output from each of the plural camera heads are projected onto three-dimensional space and an image based on the radiation source is reconstructed. In addition, projected images from projecting Compton cones obtained from the detection data output from each camera head onto two-dimensional planes are also employed for determining a three-dimensional space excluding regions where the radiation source is not present. Reconstruction of images based on the radiation source is then performed within the determined three-dimensional space.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: June 3, 2014
    Assignees: National University Corporation Gunma University, Japan Atomic Energy
    Inventors: Mitsutaka Yamaguchi, Hirofumi Shimada, Takashi Nakano, Naoki Kawachi, Kazuo Arakawa, Tadayuki Takahashi, Shin Watanabe, Shinichiro Takeda, Hirokazu Odaka, Yoshikatsu Kuroda, Masahiro Kato, Kei Genba
  • PARTICLE RADIATION MONITORING APPARATUS, RECORDING MEDIUM TO RETAIN PARTICLE RADIATION MONITORING PROGRAM, AND PARTICLE RADIATION MONITORING METHOD
    Publication number: 20120215495
    Abstract: A particle radiation monitoring apparatus according to one aspect of the present invention includes a detecting unit to detect radioactive ray information of braking radiation from electrons undergoing action of particle beams incident on an irradiation body in accordance with a positional relation with the irradiation body and a calculating unit to calculate information on behaviors of the particle beams in the irradiation body from the radioactive ray information of the braking radiation corresponding to the positional relation that is detected by the detecting unit.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 23, 2012
    Inventors: Mitsutaka YAMAGUCHI, Naoki Kawachi, Takahiro Satoh, Tomihiro Kamiya, Kota Torikai, Takashi Nakano, Kazuo Arakawa, Hirofumi Shimada, Tadayuki Takahashi, Shin Watanabe, Motohide Kokubun
  • COMPTON CAMERA
    Publication number: 20110260071
    Abstract: Plural camera heads are each placed in a position capable of detection of radiation emitted from a radiation source. Compton cones obtained from the detection data output from each of the plural camera heads are projected onto three-dimensional space and an image based on the radiation source is reconstructed. In addition, projected images from projecting Compton cones obtained from the detection data output from each camera head onto two-dimensional planes are also employed for determining a three-dimensional space excluding regions where the radiation source is not present. Reconstruction of images based on the radiation source is then performed within the determined three-dimensional space.
    Type: Application
    Filed: August 21, 2009
    Publication date: October 27, 2011
    Applicant: National University Corporation Gunma University ana dJapan Atomic Energy
    Inventors: Mitsutaka Yamaguchi, Hirofumi Shimada, Takashi Nakano, Naoki Kawachi, Kazuo Arakawa, Tadayuki Takahashi, Shin Watanabe, Shinichiro Takeda, Hirokazu Odaka, Yoshikatsu Kuroda, Masahiro Kato, Kei Genba