Patents by Inventor Minoru Sakama

Minoru Sakama 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).

  • Device for measuring radiation intensity of small sealed radiation source for cancer therapy
    Patent number: 9176236
    Abstract: The invention provides a radiation intensity measuring apparatus for each of small sealed radiation sources for cancer therapy that is capable of measuring multiple cartridges. The apparatus includes a device for setting up multiple cartridges and a device for measuring the radiation intensities of radiation passing through a narrow slit. Radiation is emitted from multiple radiation sources and the radiation measurement device moves simultaneously together with the slit along with the side of cartridge holding device while scanning the radiation intensities. Included is a radiation detection scanning device for measuring radiation intensities for each of the radiation sources passing through the narrow slit, and a slit shielding system for restricting radiation originated originating from both the side neighboring radiation sources.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: November 3, 2015
    Assignees: THE UNIVERSITY OF TOKUSHIMA, LSIP, LLC
    Inventors: Minoru Sakama, Hitoshi Ikushima, Takaharu Yamada, Hisashi Takai, Teruyoshi Ichiraku
  • DEVICE FOR MEASURING RADIATION INTENSITY OF SMALL SEALED RADIATION SOURCE FOR CANCER THERAPY
    Publication number: 20150241568
    Abstract: Provided is a radiation intensity measuring apparatus for each of small sealed radiation sources for cancer therapy capable of measuring multiple cartridges efficiently and rapidly.
    Type: Application
    Filed: October 2, 2013
    Publication date: August 27, 2015
    Applicants: LSIP, LLC, THE UNIVERSITY OF TOKUSHIMA
    Inventors: Minoru Sakama, Hitoshi Ikushima, Takaharu Yamada, Hisashi Takai, Teruyoshi Ichiraku
  • Ink jet printer nozzle clog preventive apparatus
    Patent number: 4734718
    Abstract: An ink jet printer nozzle clog preventive apparatus includes a cap member provided opposite a printing head on a carriage positioned outside the printing zone, the cap member being movable toward and away from the printing head, a moving mechanism including a driving source for moving the cap member toward the printing head, a pump connected to the cap member interior to achieve a negative pressure in the cap member when the printing head is covered with the cap member, a maintenance solution tank from which to supply maintenance solution to the cap member interior, a control system for controlling the moving mechanism, pump and maintenance solution tank according to the printer state, and an instruction switch for instructing a nozzle recovery operation when air enters the printing head nozzle.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: March 29, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fusao Iwagami, Minoru Sakama
  • Frequency converter for use in a laser printer
    Patent number: 4725967
    Abstract: A frequency control device for use in a laser printer which comprises a modulator for modulating an original signal by a modulation signal so that the speed of the printing data of the laser printer is changed to compensate the change of the scanning speed of a light spot projected by a polygon mirror in the laser printer without using a f-.theta. lens.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: February 16, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiko Aiba, Minoru Sakama