Patents by Inventor Keiji Tsubota

Keiji Tsubota 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: 8334515
    Abstract: A radiographic image capturing system includes an image capturing apparatus for applying radiation to a subject, an electronic cassette serving as a radiation detecting apparatus for detecting radiation X transmitted through the subject, a power feeder for supplying electric power contactlessly to a contactless power receiver of the electronic cassette, an image-capturing-state determining unit for determining whether image-capturing by the radiation is being performed or not, and a signal generator for generating a feeding inhibition signal to inhibit the power feeder from supplying electric power contactlessly to the electronic cassette if the image-capturing-state determining unit judges that the image-capturing is being performed.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: December 18, 2012
    Assignee: Fujifilm Corporation
    Inventors: Keiji Tsubota, Masato Hattori, Yutaka Yoshida, Yasunori Ohta, Naoyuki Nishino
  • Patent number: 8334516
    Abstract: A radiographic image capturing system includes an image capturing apparatus for applying radiation to a subject, a radiation detecting apparatus for detecting radiation transmitted through the subject, a power feeder for supplying electric power contactlessly to a contactless power receiver of the radiation detecting apparatus, a feeding-state determining unit for determining whether power-feeding by the power feeder is being performed or not, and a signal generator for generating an image-capturing inhibition signal for inhibiting radiographic image-capturing by the image capturing apparatus if the feeding-state determining unit judges that the power-feeding is being performed.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: December 18, 2012
    Assignee: Fujifilm Corporation
    Inventors: Keiji Tsubota, Masato Hattori, Yutaka Yoshida, Yasunori Ohta, Naoyuki Nishino
  • Patent number: 8319189
    Abstract: A radiographic imaging assistance device is provided. An acquisition component acquires position information representing positions of defective pixels of an imaging device, the imaging device being plurally provided with pixels comprising detection elements which detect radiation that has passed through a subject of imaging, and the imaging device carrying out imaging by generating image information which represents a radiographic image in accordance with radiation amounts detected by the detection elements and storing the image information in a pre-specified storage region. A judgment component, based on detection region information, which represents a detection region with a size corresponding to the subject of imaging, and the acquired position information, judges whether or not an influence from the defective pixels in a detection region that is represented by the detection region information is within an acceptable level that accepts imaging a radiographic image.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: November 27, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Tsubota, Yutaka Yoshida, Takeshi Kamiya, Naoyuki Nishino, Yasunori Ohta
  • Patent number: 8292504
    Abstract: A cassette accommodating device accommodates casings of a plurality of sizes. Each casing is detachably inserted with a cassette installed with a rechargeable battery and a radiation detection unit that is supplied with power from the rechargeable battery and generates a radiographic image according to an amount of received radiation. Each casing is provided on at least one of two connected side faces with a power receiving unit that receives power for charging the rechargeable battery. The device comprises a groove portion, formed with a sloping face that faces one of the two side faces of an accommodated casing, and a bottom face that faces the other of the two side faces of the accommodated casing. The bottom face is inclined such that the casing moves toward the sloping face when the casing is accommodated. A power supply unit is formed to the sloping face and/or the bottom face so as to supply power to the power receiving unit when the casing has been accommodated.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: October 23, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Akihito Bettouyashiki, Yoshiki Takeoka, Yutaka Yoshida, Keiji Tsubota, Shoji Takahashi, Yasunori Ohta, Naoyuki Nishino
  • Patent number: 8259904
    Abstract: A radiographic image capturing system comprises a radiation converter for converting radiation that has passed through a subject into a radiographic image, a processor for processing the radiographic image, and a selector for, when a plurality of the radiation converters and/or a plurality of the processors are provided, selecting one radiation converter and one processor that have the most appropriate communication state and associating the selected one radiation converter with the selected one processor.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: September 4, 2012
    Assignee: Fujifilm Corporation
    Inventors: Keiji Tsubota, Naoyuki Nishino, Yutaka Yoshida, Yasunori Ohta, Masato Hattori
  • Patent number: 8247787
    Abstract: When a first image capturing apparatus installed in an image capturing room is selected and a power supply switch of a radiation converter used in the first image capturing apparatus is turned on, a controller generates an image capturing apparatus identification signal for specifying the image capturing apparatus, and sends the identification signal together with ID information of the selected image capturing apparatus stored in an ID memory to a console in the image capturing room via a transceiver by wireless communications. The console reads image capturing conditions for the selected image capturing apparatus from an image capturing condition storage unit, and supplies the conditions to a radiation generator for recording a radiographic image in the radiation converter. The radiation generator controls a radiation source according to the supplied conditions to emit radiation for recording a desired radiographic image on a radiation conversion panel of the radiation converter.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: August 21, 2012
    Assignee: Fujifilm Corporation
    Inventors: Naoyuki Nishino, Keiji Tsubota, Yasunori Ohta, Yutaka Yoshida, Masato Hattori
  • Patent number: 8237127
    Abstract: An electronic cassette has a casing that houses a radiation converter thereinside. The radiation converter detects radiation from a radiation source that has been transmitted through a subject, and converts the radiation into radiographic image information. Plural handles are disposed on the casing of the electronic cassette, so that a person can grip the plural handles and carry the electronic cassette. Thus, the person can grip and carry the electronic cassette while dispersing the weight of the electronic cassette, so carrying the electronic cassette becomes easy. Further, when the person loads the electronic cassette into a shooting table or the like, the person can grip either of the plural handles and load the electronic cassette. For this reason, handling of the electronic cassette becomes easy.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: August 7, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Yoshida, Yasunori Ohta, Naoyuki Nishino, Keiji Tsubota, Takeshi Kamiya
  • Patent number: 8212219
    Abstract: A radiation detecting apparatus includes a radiation conversion panel for detecting radiation that has passed through a subject and converting the detected radiation into radiation image information, and a casing for storing the radiation conversion panel as a roll when the subject is not being irradiated with radiation. When the subject is irradiated with radiation, the radiation conversion panel stored as a roll in the casing is unrolled and pulled out of the casing, and the radiation conversion panel is extended flatwise against the subject.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: July 3, 2012
    Assignee: Fujifilm Corporation
    Inventors: Keiji Tsubota, Yasunori Ohta, Naoyuki Nishino, Yutaka Yoshida, Eiichi Kito, Shinji Imai, Yasuhiro Seto
  • Patent number: 8203446
    Abstract: A radio communication terminal includes a radio communication unit that performs radio communication with another device, a detector that detects radio waves in a predetermined frequency range emitted from a medical device that is used integrally with a human body, and a prohibition unit that prohibits radio communication by the radio communication unit when radio waves in the predetermined frequency range have been detected.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: June 19, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Tsubota, Yutaka Yoshida, Yasunori Ohta, Naoyuki Nishino, Takeshi Kamiya
  • Patent number: 8198591
    Abstract: The present invention provides a cooling device that can cool an electronic device in a short amount of time. When an electronic cassette has been accommodated in a housing device, the cooling device performs heat absorption by spraying an antiseptic liquid from nozzles onto the electronic cassette.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 12, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Yasunori Ohta, Keiji Tsubota
  • Patent number: 8182147
    Abstract: A portable radiographic imaging device includes an operation unit, a controller, and an execution unit. The operation unit is operated when a target function is selected from plural different functions relating to radiographic image capturing. When a first condition, that expresses that a predetermined region has been placed at a predetermined placement portion, is established, the controller carries out control such that a function that should be effective when the first condition is established is selected. When a second condition, that expresses that the predetermined region is not placed at the placement portion, is established, the controller carries out control such that a function that should be effective when the second condition is established is selected. When the operation unit is operated, the execution unit executes a function that is controlled by the controller to be selected.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: May 22, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Keiji Tsubota, Yasunori Ohta, Yutaka Yoshida, Takashi Shoji, Kiyoshi Kondou, Yuji Kurachi
  • Patent number: 8183822
    Abstract: There is provided a digital cassette charging apparatus including: a charging unit loadable with plural types of digital cassette each comprising a rechargeable battery, the charging unit capable of charging the rechargeable batteries of the plural types of digital cassette at the same time; an identification unit for identifying each of the respective types of the plural digital cassettes that have been loaded in the charging unit; a storage unit stored with a charging profile for each of the digital cassettes, the charging profile representing the charging characteristics of the rechargeable battery; and a control unit for reading out from the storage unit the respective charging profile corresponding to the type of digital cassette identified by the identification unit from the plural types of digital cassette, and for controlling the charging unit based on the respective read-out charging profile.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: May 22, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Tsubota, Naoyuki Nishino, Yasunori Ohta, Yutaka Yoshida, Shoji Takahashi, Akihito Bettouyashiki, Yoshiki Takeoka
  • Patent number: 8173969
    Abstract: A radiation detecting apparatus includes a flexible radiation conversion panel for detecting radiation that has passed through a subject and converting the detected radiation into radiation image information, and grips disposed on ends of the radiation conversion panel. A hardness of the grips is greater than that of the radiation conversion panel. Holes are formed in the grips for enabling the grips to be gripped.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: May 8, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Yasuhiro Seto, Yutaka Yoshida, Keiji Tsubota, Yasunori Ohta, Eiichi Kito, Shinji Imai
  • Patent number: 8164049
    Abstract: A radiation detecting apparatus includes a radiation conversion panel for detecting the radiation which has passed through the subject and converting the detected radiation into radiation image information, a temperature sensor for detecting a temperature of the radiation conversion panel, and a sensitivity corrector for correcting at least one of a sensitivity, a dark current, a density step, and a residual image of the radiation conversion panel based on the temperature detected by the temperature sensor.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: April 24, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Tsubota, Yutaka Yoshida, Eiichi Kito, Yasunori Ohta, Naoyuki Nishino, Shinji Imai, Yasuhiro Seto
  • Patent number: 8149116
    Abstract: A determination unit of a portable radiographic image conversion device determines, when image information has been generated by an electronic circuit, whether or not a state of connection between a connection terminal and a communication cable is abnormal. Then, when it has been determined by the determination unit that the state of connection is not abnormal, a control unit causes the image information that has been generated to be transmitted by a communication unit, and, when it has been determined by the determination unit that the state of connection is abnormal, the control unit causes the image information that has been generated to be stored in a memory.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: April 3, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Yasunori Ohta, Keiji Tsubota, Yutaka Yoshida
  • Patent number: 8130909
    Abstract: There is provided a radiographic imaging device including: a radiation detector having plural sensor portions; a receiving unit that receives request data requesting radiation irradiation permission from a control device that controls a radiation source; a control unit that controls the radiation detector such that an accumulation extraction operation is repeatedly performed that extracts charge that has accumulated in each sensor portions of the radiation detector, the accumulation extraction operation being performed after a specific accumulation period has elapsed that is greater than the irradiation period of radiation; a determination unit that determines whether or not radiation irradiation of the irradiation period from the radiation source is possible within the accumulation period of the accumulation extraction operation; and a permission unit that permits radiation irradiation if the determination unit has determined that irradiation is possible, and otherwise that permits radiographic image after s
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 6, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Kouichi Kitano, Keiji Tsubota, Yasunori Ohta, Yutaka Yoshida
  • Patent number: 8080802
    Abstract: In a radiographic image capturing system, when a radiation detector is activated by a battery which is capable of being charged by a charging apparatus, charging of the battery by the charging apparatus is controlled based on whether image-capturing with respect to a subject is performed or not and/or whether delivery of the radiographic image information from the radiation detector is performed or not.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: December 20, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Keiji Tsubota, Yasunori Ohta, Yutaka Yoshida, Masato Hattori
  • Patent number: 8071952
    Abstract: There is provided a radiographic image detection device including: a radiation detection portion that includes an irradiation surface at which radiation is irradiated and is provided, at a plurality of locations on side faces, with attachment portions at which a handle is attachable, the radiation detection portion detecting radiation that has passed through a subject of imaging and been irradiated through the irradiation surface, and outputting image information that represents a radiographic image in accordance with detected radiation amounts; and a handle portion that is attachable and detachable at the attachment portions.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: December 6, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Yutaka Yoshida, Yasunori Ohta, Keiji Tsubota, Takeshi Kamiya
  • Publication number: 20110280374
    Abstract: An electronic cassette in a radiographic image capturing system includes a radiation detector for detecting radiation applied from an image capturing apparatus and transmitted through a patient, a contactless power receiver for receiving electric power supplied contactlessly from a power feeder and supplying the electric power to a battery, an A/D converter for performing an A/D conversion to convert analog radiographic image information generated based on the radiation applied to the radiation detector into digital radiographic image information, an end-of-A/D-conversion determining unit for determining whether the A/D conversion is finished or not, and a charging controller for stopping the power feeder from supplying electric power contactlessly after the image capturing apparatus has started capturing images until the end-of-A/D-conversion determining unit judges that the A/D conversion is finished.
    Type: Application
    Filed: June 16, 2011
    Publication date: November 17, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Yasunori Ohta, Naoyuki Nishino, Yutaka Yoshida, Keiji Tsubota, Masato Hattori, Naoto Iwakiri
  • Patent number: 8053738
    Abstract: A radiographic image detection device includes a radiation detector and a handle portion. The radiation detector detects radiation that has passed through a subject and has been irradiated thereon, and outputs image information expressing a radiographic image corresponding to a detected radiation amount. The handle portion is provided at a side surface of the radiation detector and configured to be grasped, and has a notification section that gives notice of an operating state of the radiation detector.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: November 8, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Yutaka Yoshida, Yasunori Ohta, Keiji Tsubota, Takeshi Kamiya