Patents by Inventor Akio Saigusa
Akio Saigusa 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).
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Patent number: 11800219Abstract: A radiation imaging system comprises a radiation imaging apparatus having a plurality of imaging modes, and a control apparatus configured to control imaging of a radiation image with respect to the radiation imaging apparatus. The radiation imaging system comprises: an obtaining unit configured to obtain information with respect to a communication state between the radiation imaging apparatus and the control apparatus; and a display control unit configured to cause a display unit of at least one of the radiation imaging apparatus and the control apparatus to display information indicating a margin in the communication state based on an imaging mode of the radiation imaging apparatus and the information with respect to the communication state.Type: GrantFiled: May 27, 2022Date of Patent: October 24, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Akio Saigusa, Akiya Nakayama
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Publication number: 20220294973Abstract: A radiation imaging system comprises a radiation imaging apparatus having a plurality of imaging modes, and a control apparatus configured to control imaging of a radiation image with respect to the radiation imaging apparatus. The radiation imaging system comprises: an obtaining unit configured to obtain information with respect to a communication state between the radiation imaging apparatus and the control apparatus; and a display control unit configured to cause a display unit of at least one of the radiation imaging apparatus and the control apparatus to display information indicating a margin in the communication state based on an imaging mode of the radiation imaging apparatus and the information with respect to the communication state.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Inventors: Akio Saigusa, Akiya Nakayama
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Patent number: 11375098Abstract: A radiation imaging system comprises a radiation imaging apparatus having a plurality of imaging modes, and a control apparatus configured to control imaging of a radiation image with respect to the radiation imaging apparatus. The radiation imaging system comprises: an obtaining unit configured to obtain information with respect to a communication state between the radiation imaging apparatus and the control apparatus; and a display control unit configured to cause a display unit of at least one of the radiation imaging apparatus and the control apparatus to display information indicating a margin in the communication state based on an imaging mode of the radiation imaging apparatus and the information with respect to the communication state.Type: GrantFiled: December 19, 2019Date of Patent: June 28, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Akio Saigusa, Akiya Nakayama
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Patent number: 11166693Abstract: A radiation imaging system is provided. The system comprises: an imaging unit including a plurality of pixels configured to generate a radiation image and a detection unit configured to detect incident radiation to perform exposure control; an irradiation control unit configured to control radiation irradiation by a radiation source, an obtainment unit configured to obtain a delay time of communication between the imaging unit and the irradiation control unit; and a determination unit. The determination unit determines, based on a radiation irradiation condition set by an operator and the delay time obtained by the obtainment unit, whether to permit imaging by exposure control using a signal output from the detection unit.Type: GrantFiled: January 23, 2020Date of Patent: November 9, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Akio Saigusa, Akiya Nakayama
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Publication number: 20200213504Abstract: A radiation imaging system comprises a radiation imaging apparatus having a plurality of imaging modes, and a control apparatus configured to control imaging of a radiation image with respect to the radiation imaging apparatus. The radiation imaging system comprises: an obtaining unit configured to obtain information with respect to a communication state between the radiation imaging apparatus and the control apparatus; and a display control unit configured to cause a display unit of at least one of the radiation imaging apparatus and the control apparatus to display information indicating a margin in the communication state based on an imaging mode of the radiation imaging apparatus and the information with respect to the communication state.Type: ApplicationFiled: December 19, 2019Publication date: July 2, 2020Inventors: Akio Saigusa, Akiya Nakayama
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Publication number: 20200155108Abstract: A radiation imaging system is provided. The system comprises: an imaging unit including a plurality of pixels configured to generate a radiation image and a detection unit configured to detect incident radiation to perform exposure control; an irradiation control unit configured to control radiation irradiation by a radiation source, an obtainment unit configured to obtain a delay time of communication between the imaging unit and the irradiation control unit; and a determination unit. The determination unit determines, based on a radiation irradiation condition set by an operator and the delay time obtained by the obtainment unit, whether to permit imaging by exposure control using a signal output from the detection unit.Type: ApplicationFiled: January 23, 2020Publication date: May 21, 2020Inventors: Akio Saigusa, Akiya Nakayama
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Publication number: 20170265834Abstract: A management apparatus for managing radiation imaging receives function information about a radiation imaging apparatus and communication information about communication between the radiation imaging apparatus and a radiation generation apparatus. Based on the function information or communication information received, an operation setting unit in the management apparatus sets an operation mode of the radiation imaging apparatus; and a control unit perform control corresponding to radiation imaging based on the set operation mode.Type: ApplicationFiled: June 2, 2017Publication date: September 21, 2017Inventor: Akio Saigusa
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Patent number: 8969820Abstract: A radiographic apparatus includes an X-ray detection sensor having a two-dimensional detector plane for detecting an intensity distribution of X-rays, a body internally containing the X-ray detection sensor, a supporting member having a supporting surface for supporting the X-ray detection sensor across the detector plane and which fixes the X-ray detection sensor to an inner bottom surface of the body, and a circuit board on which is mounted a circuit for reading out a detection signal from the X-ray detection sensor. Furthermore, in the radiographic apparatus, the supporting member forms a space between the supporting member and the inner bottom surface of the body in a peripheral portion of the supporting member. At least a part of the circuit board is arranged in the space.Type: GrantFiled: May 31, 2013Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventors: Hidetomo Suwa, Akio Saigusa, Tetsuo Watanabe
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Publication number: 20140254758Abstract: A management apparatus for managing radiation imaging receives function information about a radiation imaging apparatus and communication information about communication between the radiation imaging apparatus and a radiation generation apparatus. Based on the function information or communication information received, an operation setting unit in the management apparatus sets an operation mode of the radiation imaging apparatus; and a control unit perform control corresponding to radiation imaging based on the set operation mode.Type: ApplicationFiled: March 5, 2014Publication date: September 11, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Akio Saigusa
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Patent number: 8592774Abstract: A radiographic apparatus includes an x-ray detection sensor having a two-dimensional detector plane for detecting an intensity distribution of x-rays, a body internally containing the x-ray detection sensor, a supporting member having a supporting surface for supporting the x-ray detection sensor across the detector plane and which fixes the x-ray detection sensor to an inner bottom surface of the body, and a circuit board on which is mounted a circuit for reading out a detection signal from the x-ray detection sensor. Furthermore, in the radiographic apparatus, the supporting member forms a space between the supporting member and the inner bottom surface of the body in a peripheral portion of the supporting member. At least a part of the circuit board is arranged in the space.Type: GrantFiled: May 13, 2010Date of Patent: November 26, 2013Assignee: Canon Kabushiki KaishaInventors: Hidetomo Suwa, Akio Saigusa, Tetsuo Watanabe
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Publication number: 20130266121Abstract: A radiographic apparatus includes an X-ray detection sensor having a two-dimensional detector plane for detecting an intensity distribution of X-rays, a body internally containing the X-ray detection sensor, a supporting member having a supporting surface for supporting the X-ray detection sensor across the detector plane and which fixes the X-ray detection sensor to an inner bottom surface of the body, and a circuit board on which is mounted a circuit for reading out a detection signal from the X-ray detection sensor. Furthermore, in the radiographic apparatus, the supporting member forms a space between the supporting member and the inner bottom surface of the body in a peripheral portion of the supporting member. At least a part of the circuit board is arranged in the space.Type: ApplicationFiled: May 31, 2013Publication date: October 10, 2013Inventors: Hidetomo Suwa, Akio Saigusa, Tetsuo Watanabe
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Publication number: 20110163240Abstract: A radiographic apparatus includes an x-ray detection sensor having a two-dimensional detector plane for detecting an intensity distribution of x-rays, a body internally containing the x-ray detection sensor, a supporting member having a supporting surface for supporting the x-ray detection sensor across the detector plane and which fixes the x-ray detection sensor to an inner bottom surface of the body, and a circuit board on which is mounted a circuit for reading out a detection signal from the x-ray detection sensor. Furthermore, in the radiographic apparatus, the supporting member forms a space between the supporting member and the inner bottom surface of the body in a peripheral portion of the supporting member. At least a part of the circuit board is arranged in the space.Type: ApplicationFiled: May 13, 2010Publication date: July 7, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Hidetomo Suwa, Akio Saigusa, Tetsuo Watanabe
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Patent number: 7289146Abstract: In an image reading apparatus using a solid state image pickup element, a smear amount and the total received light amount at whole image taking region of the CCD linear sensor when a light source is turned on without film, are measured and calculated. Using a ratio of the total received light amount when a light source is turned on without film to the one at the time of image reading, a smear correction data of each line is calculated for correction processing.Type: GrantFiled: January 27, 2004Date of Patent: October 30, 2007Assignee: Canon Kabushiki KaishaInventors: Akio Saigusa, Satoshi Shimizu
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Patent number: 7261414Abstract: There is provided an ophthalmologic apparatus capable of changing a gain to a digitized image signal according to observation and image taking operations by rewriting data in an LUT or selecting a suitable LUT from a plurality of LUTs.Type: GrantFiled: July 8, 2003Date of Patent: August 28, 2007Assignee: Canon Kabushiki KaishaInventors: Akio Saigusa, Takeshi Kitamura
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Patent number: 7196725Abstract: In an X-ray film image reading apparatus, dark output distribution data of a CCD line sensor is corrected by using correction data. In order to suppress the influence of random noises on the correction data, a dark distribution correction data calculation circuit 10 calculates an average value or mode value of dark distribution outputs of all or some pixels of a CCD line sensor or a dark distribution output of the CCD line sensor subjected to a spatial low-pass filtering process, and stores it in a dark distribution memory as correction data. Next, a light source is turned on, and a subtractor subtracts the stored correction data from an output of the line sensor read from an X-ray film while the light source is turned on.Type: GrantFiled: May 11, 1999Date of Patent: March 27, 2007Assignee: Canon Kabushiki KaishaInventors: Akio Saigusa, Hitoshi Inoue
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Publication number: 20040246858Abstract: In an image reading apparatus using a solid state image pickup element, a smear amount and the total received light amount at whole image taking region of the CCD linear sensor when a light source is turned on without film, are measured and calculated.Type: ApplicationFiled: January 27, 2004Publication date: December 9, 2004Inventors: Akio Saigusa, Satoshi Shimizu
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Publication number: 20040028286Abstract: In an X-ray film image reading apparatus, dark output distribution data of a CCD line sensor is corrected by using correction data. In order to suppress the influence of random noises on the correction data, a dark distribution correction data calculation circuit 10 calculates an average value or mode value of dark distribution outputs of all or some pixels of a CCD line sensor or a dark distribution output of the CCD line sensor subjected to a spatial low-pass filtering process, and stores it in a dark distribution memory as correction data. Next, a light source is turned on, and a subtractor subtracts the stored correction data from an output of the line sensor read from an X-ray film while the light source is turned on.Type: ApplicationFiled: August 12, 2003Publication date: February 12, 2004Applicant: Canon Kabushiki KaishaInventors: Akio Saigusa, Hitoshi Inoue
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Publication number: 20040008321Abstract: There is provided an ophthalmologic apparatus capable of changing a gain to a digitized image signal according to observation and image taking operations by rewriting data in an LUT or selecting a suitable LUT from a plurality of LUTs.Type: ApplicationFiled: July 8, 2003Publication date: January 15, 2004Inventors: Akio Saigusa, Takeshi Kitamura
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Patent number: 6282306Abstract: An image reading apparatus includes an image reading portion for outputting image data of an image read, and a signal processing portion for receiving the image data from the image reading portion and outputting a signal to an external device. The signal processing portion includes an image data transmitting system for transmitting the image data from the image reading portion as is, a histogram system for producing data concerning a histogram from the image data from the image reading portion and a histogram transmitting system for transmitting the data concerning the histogram produced by the histogram system in parallel with the image data transmitting system. Alternatively, an X-ray detecting apparatus including an X-ray image detecting portion for outputting image data of a detected image may be utilized in place of the image reading apparatus.Type: GrantFiled: September 18, 1995Date of Patent: August 28, 2001Assignee: Canon Kabushiki KaishaInventors: Hitoshi Inoue, Akio Saigusa
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Patent number: 6057937Abstract: An image reading apparatus for reading images on films of different sizes and outputting read image data includes a film sensor for sensing the dimension of at least one side of each film and a control module for operating the apparatus so that at least one of the reading process and outputting process is performed under a parameter setting set beforehand in accordance with a signal from the film sensor. When a reading start instruction is issued from a control panel, a film width detecting circuit performs film sensing, thereby determining the film width of each film. Based on the film width, reading parameter values such as a pixel pitch, a density range, and a data transfer destination are selected from among those that are beforehand set through the control panel. Table update is made for a density linear conversion table according to the film width and an interpolation coefficient according to the pixel pitch.Type: GrantFiled: March 27, 1997Date of Patent: May 2, 2000Assignee: Canon Kabushiki KaishaInventors: Satoshi Shimizu, Hitoshi Inoue, Akio Saigusa