Patents by Inventor Masakazu Morishita
Masakazu Morishita 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: 9265424Abstract: A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source.Type: GrantFiled: June 10, 2014Date of Patent: February 23, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Osamu Tsujii, Masakazu Morishita, Masahiko Okunuki, Satoshi Shimizu
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Publication number: 20140296717Abstract: A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source.Type: ApplicationFiled: June 10, 2014Publication date: October 2, 2014Inventors: Osamu Tsujii, Masakazu Morishita, Masahiko Okunuki, Satoshi Shimizu
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Patent number: 8787527Abstract: A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source.Type: GrantFiled: May 24, 2011Date of Patent: July 22, 2014Assignee: Canon Kabushiki KaishaInventors: Osamu Tsujii, Masakazu Morishita, Masahiko Okunuki, Satoshi Shimizu
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Patent number: 8488037Abstract: In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the forType: GrantFiled: April 20, 2012Date of Patent: July 16, 2013Assignee: Canon Kabushiki KaishaInventors: Tadao Endo, Noriyuki Kaifu, Toshiaki Sato, Masakazu Morishita
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Publication number: 20120206608Abstract: In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the forType: ApplicationFiled: April 20, 2012Publication date: August 16, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Tadao Endo, Noriyuki Kaifu, Toshiaki Sato, Masakazu Morishita
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Patent number: 8179469Abstract: In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the forType: GrantFiled: November 10, 2009Date of Patent: May 15, 2012Assignee: Canon Kabushiki KaishaInventors: Tadao Endo, Noriyuki Kaifu, Toshiaki Sato, Masakazu Morishita
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Patent number: 8154641Abstract: A solid-state image pickup device according to the present invention has a plurality of photoelectric conversion elements and a plurality of switching elements. The photoelectric conversion element is formed above at least one switching element, and a shielding electrode layer is disposed between the switching elements and the photoelectric conversion elements. Further, a radiation image pickup device according to the present invention has a radiation conversion layer for directly converting radiation into electric charges, and a plurality of switching elements, and has the radiation conversion layer formed above one or more switching elements, and a shielding electrode layer disposed between the switching elements and the radiation conversion layer.Type: GrantFiled: October 3, 2008Date of Patent: April 10, 2012Assignee: Canon Kabushiki KaishaInventors: Keiichi Nomura, Masakazu Morishita, Chiori Mochizuki, Minoru Watanabe, Takamasa Ishii
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Patent number: 8084745Abstract: A radiation imaging apparatus comprises a pixel region, on an insulating substrate 100, including a plurality of pixels arranged in a matrix, each pixel having a conversion element 101 that converts radiation into electric charges and a switching element 102 connected to the conversion element 101. The conversion element 101 has an upper electrode layer 119, a lower electrode layer 115, a semiconductor layer 117 arranged between the upper electrode layer 119 and the lower electrode layer 115. The upper electrode layer 119 or the lower electrode layer 115 has an opening 200 at least within a region where the semiconductor layer 117 is arranged.Type: GrantFiled: January 20, 2011Date of Patent: December 27, 2011Assignee: Canon Kabushiki KaishaInventors: Chiori Mochizuki, Minoru Watanabe, Takamasa Ishii, Masakazu Morishita
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Publication number: 20110222652Abstract: A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source.Type: ApplicationFiled: May 24, 2011Publication date: September 15, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Osamu Tsujii, Masakazu Morishita, Masahiko Okunuki, Satoshi Shimizu
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Patent number: 7970100Abstract: A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source.Type: GrantFiled: October 9, 2009Date of Patent: June 28, 2011Assignee: Canon Kabushiki KaishaInventors: Osamu Tsujii, Masakazu Morishita, Masahiko Okunuki, Satoshi Shimizu
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Publication number: 20110114846Abstract: A radiation imaging apparatus comprises a pixel region, on an insulating substrate 100, including a plurality of pixels arranged in a matrix, each pixel having a conversion element 101 that converts radiation into electric charges and a switching element 102 connected to the conversion element 101. The conversion element 101 has an upper electrode layer 119, a lower electrode layer 115, a semiconductor layer 117 arranged between the upper electrode layer 119 and the lower electrode layer 115. The upper electrode layer 119 or the lower electrode layer 115 has an opening 200 at least within a region where the semiconductor layer 117 is arranged.Type: ApplicationFiled: January 20, 2011Publication date: May 19, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Chiori Mochizuki, Minoru Watanabe, Takamasa Ishii, Masakazu Morishita
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Patent number: 7923695Abstract: Sensitivity is freely changeable to another one in correspondence to a photographing mode, and both still image photographing and moving image photographing for example which are largely different from each other in dosage of exposure to radiation and which are also different from each other in required sensitivity are carried out so as to meet that request. A source or drain electrode of a TFT 21 is connected to a signal output circuit 3 through a signal line 14a and an IC 5. A source/drain of a TFT 23 is connected to the signal output circuit 3 through a signal line 14b and the IC 5. Thus, in each pixel 6, any one of the signal lines 14a and 14b is freely selectable when a signal is read out.Type: GrantFiled: January 7, 2009Date of Patent: April 12, 2011Assignee: Canon Kabushiki KaishaInventors: Takamasa Ishii, Masakazu Morishita, Chiori Mochizuki, Minoru Watanabe, Keiichi Nomura
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Patent number: 7897930Abstract: A radiation imaging apparatus comprises a pixel region, on an insulating substrate 100, including a plurality of pixels arranged in a matrix, each pixel having a conversion element 101 that converts radiation into electric charges and a switching element 102 connected to the conversion element 101. The conversion element 101 has an upper electrode layer 119, a lower electrode layer 115, a semiconductor layer 117 arranged between the upper electrode layer 119 and the lower electrode layer 115. The upper electrode layer 119 or the lower electrode layer 115 has an opening 200 at least within a region where the semiconductor layer 117 is arranged.Type: GrantFiled: June 4, 2007Date of Patent: March 1, 2011Assignee: Canon Kabushiki KaishaInventors: Chiori Mochizuki, Minoru Watanabe, Takamasa Ishii, Masakazu Morishita
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Patent number: 7858947Abstract: To improve a sensor resetting method and thereby implement a high rate at which a moving image is read, the invention provides an image pickup apparatus and a radiation image pickup apparatus including: a plurality of pixels arranged on a substrate in row and column directions, each pixel having a conversion element and a transfer switching element; a drive wiring connected to a plurality of the transfer switching elements in the row direction; and a conversion element wiring connected to a plurality of the conversion elements in the row direction, wherein a reset switching element is disposed between the conversion element wiring and a reset wiring for supplying a reset voltage for resetting the conversion element, and a bias switching element is disposed between the conversion element wiring and a bias wiring for supplying a bias voltage for operating the conversion element.Type: GrantFiled: May 29, 2009Date of Patent: December 28, 2010Assignee: Canon Kabushiki KaishaInventors: Chiori Mochizuki, Masakazu Morishita, Keiichi Nomura, Minoru Watanabe, Takamasa Ishii
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Patent number: 7750422Abstract: In a solid state image pickup apparatus with a photodetecting device and one or more thin film transistors connected to the photodetecting device formed in one pixel, a part of the photodetecting device is formed over at least a part of the thin film transistor, and the thin film transistor is constructed by a source electrode, a drain electrode, a first gate electrode, and a second gate electrode arranged on the side opposite to the first gate electrode with respect to the source electrode and the drain electrode, and the first gate electrode is connected to the second gate electrode every pixel, thereby, suppressing an adverse effect of the photodetecting device on the TFT, a leakage at turn-off TFT, variation in a threshold voltage of the TFT due to an external electric field, and accurately transferring photo carrier to a signal processing circuit.Type: GrantFiled: March 12, 2007Date of Patent: July 6, 2010Assignee: Canon Kabushiki KaishaInventors: Minoru Watanabe, Masakazu Morishita, Chiori Mochizuki, Takamasa Ishii, Keiichi Nomura
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Patent number: 7724295Abstract: A radiation reader including a conversion device, and a method of driving the radiation reader. The conversion device includes (a) a pixel including a conversion device for converting an incident radiation into an electric charge, and (b) a reading circuit including at least one field effect transistor for reading the electric charge from the pixel in an amplifying manner as a signal containing a noise. The reading circuit includes first storage means for storing the signal containing the noise, second storage means for storing the noise, and processing means for deriving an output signal not containing the noise based on a first output from the first storage means and a second output from the second storage means.Type: GrantFiled: February 25, 2005Date of Patent: May 25, 2010Assignee: Canon Kabushiki KaishaInventors: Isao Kobayashi, Masakazu Morishita
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Publication number: 20100111250Abstract: A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source.Type: ApplicationFiled: October 9, 2009Publication date: May 6, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Osamu Tsujii, Masakazu Morishita, Masahiko Okunuki, Satoshi Shimizu
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Publication number: 20100054407Abstract: In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the forType: ApplicationFiled: November 10, 2009Publication date: March 4, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Tadao Endo, Noriyuki Kaifu, Toshiaki Sato, Masakazu Morishita
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Patent number: 7643077Abstract: In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the forType: GrantFiled: January 8, 2007Date of Patent: January 5, 2010Assignee: Canon Kabushiki KaishaInventors: Tadao Endo, Noriyuki Kaifu, Toshiaki Sato, Masakazu Morishita
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Publication number: 20090230311Abstract: To improve a sensor resetting method and thereby implement a high rate at which a moving image is read, the invention provides an image pickup apparatus and a radiation image pickup apparatus including: a plurality of pixels arranged on a substrate in row and column directions, each pixel having a conversion element and a transfer switching element; a drive wiring connected to a plurality of the transfer switching elements in the row direction; and a conversion element wiring connected to a plurality of the conversion elements in the row direction, wherein a reset switching element is disposed between the conversion element wiring and a reset wiring for supplying a reset voltage for resetting the conversion element, and a bias switching element is disposed between the conversion element wiring and a bias wiring for supplying a bias voltage for operating the conversion element.Type: ApplicationFiled: May 29, 2009Publication date: September 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Chiori Mochizuki, Masakazu Morishita, Keiichi Nomura, Minoru Watanabe, Takamasa Ishii