Patents by Inventor Yuu Arishima
Yuu Arishima 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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Publication number: 20140117211Abstract: An image sensing apparatus includes a pixel array, a first color filter, a second color filter, and a light shielding portion. The amount of electric charges generated in a first pixel after light of a first wavelength enters the first pixel is larger than that of electric charges generated in a second pixel after light of a second wavelength enters the second pixel. The light shielding portion defines the aperture regions of the first and second pixels so as to set the aperture area of the first pixel larger than that of the second pixel.Type: ApplicationFiled: January 8, 2014Publication date: May 1, 2014Applicant: c/o CANON KABUSHIKI KAISHAInventors: Yuu Arishima, Hideaki Takada, Seiichirou Sakai
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Patent number: 8217330Abstract: An apparatus includes a pixel region having disposed therein in a matrix form a plurality of conversion components, an amplifier transistor which amplifies a signal from the plurality of conversion components, a reset transistor which sets the potential of an input portion of the amplifier transistor to a reset potential, and a select transistor which is connected in series to the amplifier transistor and selects and reads the amplified signal, and well contact regions which are provided within the pixel region. Each of the well contact regions is neighboring to a drain region of the reset transistor, and the drain region of the reset transistor has a lower impurity concentration than the impurity concentration in the source and drain regions of the select transistor.Type: GrantFiled: June 21, 2010Date of Patent: July 10, 2012Assignee: Canon Kabushiki KaishaInventors: Seiichirou Sakai, Yuu Arishima
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Publication number: 20120105670Abstract: An image sensing apparatus includes a pixel array, a first color filter, a second color filter, and a light shielding portion. The amount of electric charges generated in a first pixel after light of a first wavelength enters the first pixel is larger than that of electric charges generated in a second pixel after light of a second wavelength enters the second pixel. The light shielding portion defines the aperture regions of the first and second pixels so as to set the aperture area of the first pixel larger than that of the second pixel.Type: ApplicationFiled: January 13, 2012Publication date: May 3, 2012Applicant: c/o CANON KABUSHIKI KAISHAInventors: Yuu Arishima, Hideaki Takada, Seiichirou Sakai
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Patent number: 8159578Abstract: An imaging system includes an image sensor and a mechanical shutter which controls the termination of exposure of the image sensor. The image sensor includes a pixel array in which a plurality of pixels are arrayed in a matrix, and a vertical scanning unit which scans the pixel array for each row. The vertical scanning unit parallelly executes some of the reset operations of pixels on at least two adjacent rows of the pixel array. The charge accumulation operation of pixels starts upon completion of the reset operation and terminates in response to light shielding by the mechanical shutter.Type: GrantFiled: July 6, 2009Date of Patent: April 17, 2012Assignee: Canon Kabushiki KaishaInventors: Yuu Arishima, Hiroki Hiyama
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Patent number: 8106343Abstract: An image sensing apparatus includes a pixel array, a first color filter, a second color filter, and a light shielding portion. The amount of electric charges generated in a first pixel after light of a first wavelength enters the first pixel is larger than that of electric charges generated in a second pixel after light of a second wavelength enters the second pixel. The light shielding portion defines the aperture regions of the first and second pixels so as to set the aperture area of the first pixel larger than that of the second pixel.Type: GrantFiled: February 17, 2009Date of Patent: January 31, 2012Assignee: Canon Kabushiki KaishaInventors: Yuu Arishima, Hideaki Takada, Seiichirou Sakai
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Patent number: 7961237Abstract: This invention discloses a photoelectric conversion device. The photoelectric conversion device includes a pixel array in which a plurality of pixels are arrayed in a row direction and a column direction, a plurality of readout circuits which read out signals from pixels for respective columns in the pixel array, and a control unit which controls the plurality of readout circuits, wherein each of the plurality of readout circuits includes a holding unit which holds a reference voltage supplied from an external power source, an operational amplification unit which amplifies the signals from the pixels for each column based on the reference voltage held in the holding unit, and a disconnection unit which electrically disconnects the external power source and the holding unit, and the control unit controls the disconnection unit to electrically disconnect the external power source and the holding unit when the operational amplification unit amplifies the signals from the pixels for each column.Type: GrantFiled: June 3, 2010Date of Patent: June 14, 2011Assignee: Canon Kabushiki KaishaInventors: Yuuichirou Hatano, Hiroki Hiyama, Yuu Arishima
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Publication number: 20100327149Abstract: An apparatus includes a pixel region having disposed therein in a matrix form a plurality of conversion components, an amplifier transistor which amplifies a signal from the plurality of conversion components, a reset transistor which sets the potential of an input portion of the amplifier transistor to a reset potential, and a select transistor which is connected in series to the amplifier transistor and selects and reads the amplified signal, and well contact regions which are provided within the pixel region. Each of the well contact regions is neighboring to a drain region of the reset transistor, and the drain region of the reset transistor has a lower impurity concentration than the impurity concentration in the source and drain regions of the select transistor.Type: ApplicationFiled: June 21, 2010Publication date: December 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Seiichirou Sakai, Yuu Arishima
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Publication number: 20100238333Abstract: This invention discloses a photoelectric conversion device. The photoelectric conversion device includes a pixel array in which a plurality of pixels are arrayed in a row direction and a column direction, a plurality of readout circuits which read out signals from pixels for respective columns in the pixel array, and a control unit which controls the plurality of readout circuits, wherein each of the plurality of readout circuits includes a holding unit which holds a reference voltage supplied from an external power source, an operational amplification unit which amplifies the signals from the pixels for each column based on the reference voltage held in the holding unit, and a disconnection unit which electrically disconnects the external power source and the holding unit, and the control unit controls the disconnection unit to electrically disconnect the external power source and the holding unit when the operational amplification unit amplifies the signals from the pixels for each column.Type: ApplicationFiled: June 3, 2010Publication date: September 23, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Yuuichirou Hatano, Hiroki Hiyama, Yuu Arishima
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Patent number: 7755688Abstract: This invention discloses a photoelectric conversion device. The photoelectric conversion device includes a pixel array in which a plurality of pixels are arrayed in a row direction and a column direction, a plurality of readout circuits which read out signals from pixels for respective columns in the pixel array, and a control unit which controls the plurality of readout circuits, wherein each of the plurality of readout circuits includes a holding unit which holds a reference voltage supplied from an external power source, an operational amplification unit which amplifies the signals from the pixels for each column based on the reference voltage held in the holding unit, and a disconnection unit which electrically disconnects the external power source and the holding unit, and the control unit controls the disconnection unit to electrically disconnect the external power source and the holding unit when the operational amplification unit amplifies the signals from the pixels for each column.Type: GrantFiled: August 29, 2007Date of Patent: July 13, 2010Assignee: Canon Kabushiki KaishaInventors: Yuuichirou Hatano, Hiroki Hiyama, Yuu Arishima
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Patent number: 7630009Abstract: An imaging system includes an image sensor and a mechanical shutter which controls the termination of exposure of the image sensor. The image sensor includes a pixel array in which a plurality of pixels are arrayed in a matrix, and a vertical scanning unit which scans the pixel array for each row. The vertical scanning unit executes in parallel some of the reset operations of pixels on at least two adjacent rows of the pixel array. The charge accumulation operation of pixels starts upon completion of the reset operation and terminates in response to light shielding by the mechanical shutter.Type: GrantFiled: May 30, 2008Date of Patent: December 8, 2009Assignee: Canon Kabushiki KaishaInventors: Yuu Arishima, Hiroki Hiyama
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Publication number: 20090268083Abstract: An imaging system includes an image sensor and a mechanical shutter which controls the termination of exposure of the image sensor. The image sensor includes a pixel array in which a plurality of pixels are arrayed in a matrix, and a vertical scanning unit which scans the pixel array for each row. The vertical scanning unit parallelly executes some of the reset operations of pixels on at least two adjacent rows of the pixel array. The charge accumulation operation of pixels starts upon completion of the reset operation and terminates in response to light shielding by the mechanical shutter.Type: ApplicationFiled: July 6, 2009Publication date: October 29, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yuu Arishima, Hiroki Hiyama
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Publication number: 20090218479Abstract: An image sensing apparatus includes a pixel array, a first color filter, a second color filter, and a light shielding portion. The amount of electric charges generated in a first pixel after light of a first wavelength enters the first pixel is larger than that of electric charges generated in a second pixel after light of a second wavelength enters the second pixel. The light shielding portion defines the aperture regions of the first and second pixels so as to set the aperture area of the first pixel larger than that of the second pixel.Type: ApplicationFiled: February 17, 2009Publication date: September 3, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yuu Arishima, Hideaki Takada, Seiichirou Sakai
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Publication number: 20080309806Abstract: An imaging system includes an image sensor and a mechanical shutter which controls the termination of exposure of the image sensor. The image sensor includes a pixel array in which a plurality of pixels are arrayed in a matrix, and a vertical scanning unit which scans the pixel array for each row. The vertical scanning unit parallelly executes some of the reset operations of pixels on at least two adjacent rows of the pixel array. The charge accumulation operation of pixels starts upon completion of the reset operation and terminates in response to light shielding by the mechanical shutter.Type: ApplicationFiled: May 30, 2008Publication date: December 18, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Yuu Arishima, Hiroki Hiyama
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Publication number: 20080055445Abstract: This invention discloses a photoelectric conversion device. The photoelectric conversion device includes a pixel array in which a plurality of pixels are arrayed in a row direction and a column direction, a plurality of readout circuits which read out signals from pixels for respective columns in the pixel array, and a control unit which controls the plurality of readout circuits, wherein each of the plurality of readout circuits includes a holding unit which holds a reference voltage supplied from an external power source, an operational amplification unit which amplifies the signals from the pixels for each column based on the reference voltage held in the holding unit, and a disconnection unit which electrically disconnects the external power source and the holding unit, and the control unit controls the disconnection unit to electrically disconnect the external power source and the holding unit when the operational amplification unit amplifies the signals from the pixels for each column.Type: ApplicationFiled: August 29, 2007Publication date: March 6, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Yuuichirou Hatano, Hiroki Hiyama, Yuu Arishima