Patents by Inventor Hideaki Tajima

Hideaki Tajima 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: 10335110
    Abstract: A radiographic image capturing system includes the following. A radiographic image capturing apparatus includes a two-dimensional array of radiation detecting elements and a control circuit which controls reading of image data from each of the radiation detecting elements based on a predetermined capturing sequence. An image processor has first gain data to correct gains of the radiation detecting elements, and generates a radiographic image based on the corrected image data. The control circuit of the radiographic image capturing apparatus is capable of varying at least one of a reverse bias voltage and a signal line voltage to be applied to the corresponding signal line. The control circuit reads a signal value from each of the radiation detecting elements, creates second gain data based on the read signal value, and corrects the radiographic image with the first gain data and the second gain data.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: July 2, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yuki Kawana, Hideaki Tajima, Shugo Ishizaka
  • Publication number: 20170303883
    Abstract: A radiographic image capturing system includes the following. A radiographic image capturing apparatus includes a two-dimensional array of radiation detecting elements and a control circuit which controls reading of image data from each of the radiation detecting elements based on a predetermined capturing sequence. An image processor has first gain data to correct gains of the radiation detecting elements, and generates a radiographic image based on the corrected image data. The control circuit of the radiographic image capturing apparatus is capable of varying at least one of a reverse bias voltage and a signal line voltage to be applied to the corresponding signal line. The control circuit reads a signal value from each of the radiation detecting elements, creates second gain data based on the read signal value, and corrects the radiographic image with the first gain data and the second gain data.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 26, 2017
    Inventors: Yuki KAWANA, Hideaki TAJIMA, Shugo ISHIZAKA
  • Patent number: 9128368
    Abstract: If a control unit of a radiation image capturing apparatus acquires dark image data before photographing and at the same time detects initiation of irradiation of radiation based on image data read out by carrying out a readout process of the image data, the control unit applies off-voltage to all the scanning lines and shifts to an electric charge accumulation mode, and after the irradiation is over, sequentially applies on-voltage to each of the scanning lines, causes the scanning lines to carry out readout process of main image data from each of radiation detection elements, and subsequently acquires offset data in a condition where radiation is not irradiated to correct the main image data read out by the photographing or main image data read out by a photographing carried out after the former photographing based on offset lag part calculated from the offset data and the dark image data.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 8, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hideaki Tajima
  • Patent number: 8847167
    Abstract: The control device allows a step of reading the leak data and a step of resetting each radiation detection element to be executed alternately before radiation image capturing. When the data exceed a threshold value, the irradiation start is detected and electric charge is accumulated. Then, the step of reading the image data is executed. After this, the control device further allows a step of reading the leak data and a step of resetting each radiation detection element to be performed alternately at the same cycle time as that in the step of reading the leak data and the step of resetting each radiation detection element performed before detecting the irradiation start. After transfer to the electric charge accumulation state, the control device further permits a step of reading the offset data to be executed at the same cycle time as that in the step of reading the image data.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: September 30, 2014
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hideaki Tajima
  • Patent number: 8835862
    Abstract: A radiation image photographing apparatus is provided with a bias source to apply a bias voltage via bias lines to radiation detecting elements arranged in a two dimensional form in regions divided by scanning lines and signal lines. The bias lines are connected to the radiation detecting elements with a ratio of one bias line to the radiation detecting elements arranged on one column in an extension direction of the signal line, and the bias lines are connected per a predetermined number of bias lines to either one of a plurality of connection lines. The bias voltage is applied from the bias source to the connection lines via the bias lines so that the bias voltage is applied to the radiation detecting elements via the bias lines connected to the connection lines.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: September 16, 2014
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hideaki Tajima
  • Patent number: 8785876
    Abstract: A radiation image capturing apparatus is provided with a scanning drive unit which sequentially applies ON voltage to respective scanning lines during a readout process to read out image data from radiation detection elements. From the time before radiation imaging, a controller controls the scanning drive unit to sequentially apply the ON voltage to the respective scanning lines and executes the readout process for the image data from the radiation detection elements. The controller detects start of the radioactive irradiation when the image data exceeds a threshold value, and controls that ON time, during which the ON voltage is applied to the scanning lines from the scanning drive unit during the readout process for the image data before radiation imaging, becomes longer than ON time during a readout process for the image data after finishing the radioactive irradiation.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: July 22, 2014
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hideaki Tajima
  • Patent number: 8748839
    Abstract: A radiation image capturing system which includes a radiation image capturing apparatus including a detection part, a scan activation unit, switch units, a reading circuit, a control unit and a communication unit, a radiation generation apparatus and a console wherein the radiation image capturing apparatus switches an image capturing method between a cooperation method in which radiation image capturing is performed in cooperation with the radiation generation apparatus and a non-cooperation method in which radiation image capturing is performed without cooperation with the radiation generation apparatus, and the console switches standby time which is a time period after the radiation image capturing apparatus becomes able to perform radiation image capturing until the radiation source is allowed to emit radiation onto the radiation image capturing apparatus between the cooperation method and the non-cooperation method.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 10, 2014
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hideaki Tajima
  • Patent number: 8664615
    Abstract: Disclosed is a radiation image capturing device including a control section which detects at least a start of irradiation based on a current value of a current detected by a current detection section, wherein the control section applies an ON-state voltage having a predetermined voltage value from a scan driving section to a switch section via each of scan lines simultaneously so as to perform reset processing of each of radiation detection elements before radiation image capturing, and thereafter, decreases the voltage value of the ON-state voltage simultaneously, monitors the current value outputted from the current detection section while keeping the decreased voltage value of the ON-state voltage, and waits for the start of the irradiation.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: March 4, 2014
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Kouji Amitani, Hideaki Tajima, Kaneyuki Nakano
  • Publication number: 20130161526
    Abstract: If a control unit of a radiation image capturing apparatus acquires dark image data before photographing and at the same time detects initiation of irradiation of radiation based on image data read out by carrying out a readout process of the image data, the control unit applies off-voltage to all the scanning lines and shifts to an electric charge accumulation mode, and after the irradiation is over, sequentially applies on-voltage to each of the scanning lines, causes the scanning lines to carry out readout process of main image data from each of radiation detection elements, and subsequently acquires offset data in a condition where radiation is not irradiated to correct the main image data read out by the photographing or main image data read out by a photographing carried out after the former photographing based on offset lag part calculated from the offset data and the dark image data.
    Type: Application
    Filed: March 2, 2011
    Publication date: June 27, 2013
    Applicant: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hideaki Tajima
  • Publication number: 20130082186
    Abstract: A radiation image capturing system which includes a radiation image capturing apparatus including a detection part, a scan activation unit, switch units, a reading circuit, a control unit and a communication unit, a radiation generation apparatus and a console wherein the radiation image capturing apparatus switches an image capturing method between a cooperation method in which radiation image capturing is performed in cooperation with the radiation generation apparatus and a non-cooperation method in which radiation image capturing is performed without cooperation with the radiation generation apparatus, and the console switches standby time which is a time period after the radiation image capturing apparatus becomes able to perform radiation image capturing until the radiation source is allowed to emit radiation onto the radiation image capturing apparatus between the cooperation method and the non-cooperation method.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 4, 2013
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventor: Hideaki TAJIMA
  • Publication number: 20130068961
    Abstract: A radiation image capturing apparatus is provided with a scanning drive unit which sequentially applies ON voltage to respective scanning lines during a readout process to read out image data from radiation detection elements. From the time before radiation imaging, a controller controls the scanning drive unit to sequentially apply the ON voltage to the respective scanning lines and executes the readout process for the image data from the radiation detection elements. The controller detects start of the radioactive irradiation when the image data exceeds a threshold value, and controls that ON time, during which the ON voltage is applied to the scanning lines from the scanning drive unit during the readout process for the image data before radiation imaging, becomes longer than ON time during a readout process for the image data after finishing the radioactive irradiation.
    Type: Application
    Filed: March 2, 2011
    Publication date: March 21, 2013
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventor: Hideaki Tajima
  • Publication number: 20130032696
    Abstract: A radiation image capturing apparatus includes: a detecting section, a scanning drive unit, switch units, reading circuits, and a controller. The controller controls at least the scanning drive unit and the reading circuits and causes the same to execute data readout process from the radiation detection elements. The controller causes the reading circuits to periodically perform a readout operation before radiation image capturing operation in a state where each of the switch units is in an off state by applying the off voltage to all of the scanning lines from the scanning drive unit, causes the reading circuits to repeatedly execute a leaked data readout process in which the electric charges leaked from the radiation detection elements through the switch units are converted into leaked data, and detects initiation of irradiation at a point when the read-out leaked data exceeds a threshold value.
    Type: Application
    Filed: March 2, 2011
    Publication date: February 7, 2013
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventor: Hideaki Tajima
  • Publication number: 20120318994
    Abstract: The control device allows a step of reading the leak data and a step of resetting each radiation detection element to be executed alternately before radiation image capturing. When the data exceed a threshold value, the irradiation start is detected and electric charge is accumulated. Then, the step of reading the image data is executed. After this, the control device further allows a step of reading the leak data and a step of resetting each radiation detection element to be performed alternately at the same cycle time as that in the step of reading the leak data and the step of resetting each radiation detection element performed before detecting the irradiation start. After transfer to the electric charge accumulation state, the control device further permits a step of reading the offset data to be executed at the same cycle time as that in the step of reading the image data.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 20, 2012
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventor: Hideaki TAJIMA
  • Patent number: 8311378
    Abstract: There is provided an optical-connector-equipped optical fiber cable introducing method, according to which an introducing operation through an existing electrical wiring conduit or the like can be implemented, without damaging an optical fiber cable to be introduced, and with a small towing force. When inserting into a conduit 39 an optical-connector-equipped optical fiber cable 31 in which a grip 19 having a function of engaging with and disengaging from an adaptor is fitted onto a plug frame 9 that covers a ferrule, an introducing operation of the optical-connector-equipped optical fiber cable is implemented by towing and inserting the optical-connector-equipped optical fiber cable 31, from which at least the grip 19 is detached, through the conduit 39 and, thereafter, the grip 19 is attached to the plug frame 9.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: November 13, 2012
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Shinsuke Niiyama, Takayasu Yamauchi, Hideaki Tajima
  • Publication number: 20120132825
    Abstract: Disclosed is a radiation image capturing device including a control section which detects at least a start of irradiation based on a current value of a current detected by a current detection section, wherein the control section applies an ON-state voltage having a predetermined voltage value from a scan driving section to a switch section via each of scan lines simultaneously so as to perform reset processing of each of radiation detection elements before radiation image capturing, and thereafter, decreases the voltage value of the ON-state voltage simultaneously, monitors the current value outputted from the current detection section while keeping the decreased voltage value of the ON-state voltage, and waits for the start of the irradiation.
    Type: Application
    Filed: February 8, 2010
    Publication date: May 31, 2012
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Kouji Amitani, Hideaki Tajima, Kaneyuki Nakano
  • Publication number: 20120112081
    Abstract: A radiation image photographing apparatus is provided with a bias source to apply a bias voltage via bias lines to radiation detecting elements arranged in a two dimensional form in regions divided by scanning lines and signal lines. The bias lines are connected to the radiation detecting elements with a ratio of one bias line to the radiation detecting elements arranged on one column in an extension direction of the signal line, and the bias lines are connected per a predetermined number of bias lines to either one of a plurality of connection lines. The bias voltage is applied from the bias source to the connection lines via the bias lines so that the bias voltage is applied to the radiation detecting elements via the bias lines connected to the connection lines.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 10, 2012
    Applicant: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hideaki TAJIMA
  • Patent number: 7927025
    Abstract: An optical fiber branch cable is provided that comprises a branch portion disposed stably with respect to a multi-core optical fiber cable of a trunk line from which branching is performed, that is excellent in handleability as a cable, and that exhibits high workability. In the optical fiber branch cable of the invention, in a middle of a multi-core optical fiber cable 2 of a trunk line, a branch portion 11 is disposed. The branch portion 11 has: a base member 16 which is attached so as to cover a tensile-strength wire 9 in a portion where a cable jacket 10 of the multi-core optical fiber cable 2 is removed away; a multi-core optical connector 30 which is connected to the tip end of a tape unit 4 drawn out from the multi-core optical fiber cable 2; an extra-length housing portion 18 which houses an extra length of the tape unit 4 to which the multi-core optical connector 30 is connected; and a connector attaching portion 19 to which the multi-core optical connector 30 is attachable in a plural number.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: April 19, 2011
    Assignees: Sumitomo Electric Industries, Ltd., Toyokuni Electric Cable Co., Ltd.
    Inventors: Kenichiro Ohtsuka, Katsuyuki Aihara, Keisuke Okada, Masaji Yahagi, Hiroshi Nagai, Hideaki Tajima, Kimio Ito, Toshiyuki Igarashi
  • Publication number: 20100092137
    Abstract: There is provided an optical-connector-equipped optical fiber cable introducing method, according to which an introducing operation through an existing electrical wiring conduit or the like can be implemented, without damaging an optical fiber cable to be introduced, and with a small towing force. When inserting into a conduit 39 an optical-connector-equipped optical fiber cable 31 in which a grip 19 having a function of engaging with and disengaging from an adaptor is fitted onto a plug frame 9 that covers a ferrule, an introducing operation of the optical-connector-equipped optical fiber cable is implemented by towing and inserting the optical-connector-equipped optical fiber cable 31, from which at least the grip 19 is detached, through the conduit 39 and, thereafter, the grip 19 is attached to the plug frame 9.
    Type: Application
    Filed: March 19, 2008
    Publication date: April 15, 2010
    Inventors: Shinsuke Niiyama, Takayasu Yamauchi, Hideaki Tajima
  • Publication number: 20090304339
    Abstract: An optical fiber branch cable is provided that comprises a branch portion disposed stably with respect to a multi-core optical fiber cable of a trunk line from which branching is performed, that is excellent in handleability as a cable, and that exhibits high workability. In the optical fiber branch cable of the invention, in a middle of a multi-core optical fiber cable 2 of a trunk line, a branch portion 11 is disposed. The branch portion 11 has: a base member 16 which is attached so as to cover a tensile-strength wire 9 in a portion where a cable jacket 10 of the multi-core optical fiber cable 2 is removed away; a multi-core optical connector 30 which is connected to the tip end of a tape unit 4 drawn out from the multi-core optical fiber cable 2; an extra-length housing portion 18 which houses an extra length of the tape unit 4 to which the multi-core optical connector 30 is connected; and a connector attaching portion 19 to which the multi-core optical connector 30 is attachable in a plural number.
    Type: Application
    Filed: February 15, 2007
    Publication date: December 10, 2009
    Inventors: Kenichiro Ohtsuka, Katsuyuki Aihara, Keisuke Okada, Masaji Yahagi, Hiroshi Nagai, Hideaki Tajima, Kimio Ito, Toshiyuki Igarashi
  • Patent number: 6522814
    Abstract: Wirings of optical fiber cable to a building having at least one story including optical core wires or taped optical core wires including at least one wire for use on each story and at least one reserve wire for use on each story upon a change in demand. The wires are wired such that a center portion is situated at an upper portion of the building and both ends are situated at a lower portion of the building. A connector part is arranged in each story and connected to the optical core wires or taped optical core wires for use on that story.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: February 18, 2003
    Assignee: Toyokuni Electric Cable Co., Ltd.
    Inventors: Osamu Yoshida, Hajime Tamura, Fumihiro Akizuki, Hideaki Tajima