Patents by Inventor Kenji Ushimi

Kenji Ushimi 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: 6587538
    Abstract: A detector unit for detecting X rays passed through a collimator having a plurality of collimator single plates, includes a substrate attached to a collimator support for supporting the collimator, a photodetecting device array including photodetecting devices mounted on the substrate, a scintillator block arranged corresponding to the photodetecting device array and provided on the photodetecting device array to convert the X rays into light, and an engaging component having an engaging portion provided on the collimator single plate side of the substrate, and engaged with the collimator single plate to regulate a position of the photodetecting device array or the scintillator block in a channel direction with respect to the collimator single plate.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: July 1, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Igarashi, Hideki Ide, Kenji Ushimi, Yasuo Saito, Yuuzo Yoshida, Miwa Okumura
  • Publication number: 20020064252
    Abstract: A detector unit for detecting X rays passed through a collimator having a plurality of collimator single plates, includes a substrate attached to a collimator support for supporting the collimator, a photodetecting device array including photodetecting devices mounted on the substrate, a scintillator block arranged corresponding to the photodetecting device array and provided on the photodetecting device array to convert the X rays into light, and an engaging component having an engaging portion provided on the collimator single plate side of the substrate, and engaged with the collimator single plate to regulate a position of the photodetecting device array or the scintillator block in a channel direction with respect to the collimator single plate.
    Type: Application
    Filed: November 23, 2001
    Publication date: May 30, 2002
    Inventors: Kenji Igarashi, Hideki Ide, Kenji Ushimi, Yasuo Saito, Yuuzo Yoshida, Miwa Okumura
  • Patent number: 5099134
    Abstract: A collimator for a scintillator, having a number of through holes formed side by side, each for guiding and passing radiation from one end thereof to an other end and focusing the radiation at a predetermined position, including a frame made of a radiation shielding material, and defining a radiation transparent field of view, and a septa section provided in a lattice form in the field of view so as to define the through holes. The septa section includes a plurality of first partition plates arranged at substantially equal intervals and a plurality of second partition plates crossing the first partition plates in a lattice form. The first and second partition plates are made of a material, preferably tungsten or lead alloy, that sheilds the radiation. A plurality of focused slits are formed in at least either the first or second partition plates with the other partition plates being fitted in the slits.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: March 24, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Daisuke Hase, Takayuki Satoh, Kenji Ushimi
  • Patent number: 4327275
    Abstract: A method of assembling an electron gun, which method permits welding of a number of welding points to be effected simply, in a short period of time and without causing mechanical distortion in welded parts and comprises the steps of; causing relative movement of electron gun parts to be welded together and the axes of a laser beam for welding and a light beam for positioning a welding point, these axes being in a predetermined positional relation to each other; causing the light beam for positioning to be incident on a part to be welded; detecting reflected light obtained when the light beam for positioning is reflected by a portion of the aformentioned part to be welded corresponding to a welding point; stopping the aforementioned relative movement according to the detection of the aforementioned reflected light; and exposing the aforementioned welding point to the laser beam for welding according to the detection of the reflected light so as to effect welding of parts to each other.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: April 27, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Shuuji Asaba, Minoru Nemoto, Kenji Ushimi, Akira Ono