Patents by Inventor Keiji Nagata
Keiji Nagata 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: 11993593Abstract: The present invention addresses the problem of providing a compound for prophylaxis and/or treatment of central inflammatory diseases, or a pharmacologically acceptable salt thereof. The present invention addresses a compound of a general formula (I) or a pharmacologically acceptable salt thereof as a means to solve the problem. [R1: a C1-C6 alkyl group or the like, R2: a C1-C6 alkyl group or the like, A: a 5-membered aromatic hetero-ring or the like, R3, R3?: a C1-C6 alkyl group or the like].Type: GrantFiled: June 21, 2022Date of Patent: May 28, 2024Assignee: Daiichi Sankyo Company, LimitedInventors: Keiji Saito, Katsuyoshi Nakajima, Yasuyuki Ogawa, Mitsuhiro Makino, Kaori Ito, Seiko Nagata, Makoto Hirasawa
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Patent number: 9800861Abstract: An image capture apparatus includes an image capture unit that has a plurality of unit pixels each including a plurality of photo-electric conversion units per condenser unit, and a recording unit that records captured image signals, which are captured by the image capture unit and are respectively read out from the plurality of photo-electric conversion units, and the recording unit records identification information which allows to identify each photo-electric conversion unit used to obtain the captured image signal in association with that captured image signal.Type: GrantFiled: January 30, 2012Date of Patent: October 24, 2017Assignee: Canon Kabushiki KaishaInventors: Keiji Nagata, Makiko Saito
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Patent number: 9277151Abstract: A solid-state image sensor including an effective pixel area in which a plurality of pixels are two-dimensionally arranged, each of the plurality of pixels comprising a photoelectric conversion portion configured to generate charges by photoelectric conversion, a charge holding portion configured to hold the charges generated by the photoelectric conversion portion, a floating diffusion portion configured to convert the charges from the charge holding portion into a voltage, a first transfer portion configured to transfer the charges of the photoelectric conversion portion to the charge holding portion, and a second transfer portion configured to transfer the charges of the charge holding portion to the floating diffusion portion, wherein the charge holding portion of each of the plurality of pixels is arranged on the inner side of the photoelectric conversion portion with respect to the center of the effective pixel area.Type: GrantFiled: June 20, 2013Date of Patent: March 1, 2016Assignee: Canon Kabushiki KaishaInventors: Hideki Ikedo, Keiji Nagata
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Patent number: 8854510Abstract: An image pickup apparatus includes an image pickup element 10 that includes unit cells capable of individually reading signals from pixels that receive light beams transmitting through different pupil positions of an image pickup lens 5, a detector 20 that generates a pair of image signals in a pupil division direction using a signal from a pixel corresponding to each of the unit cells to perform focus detection based on a phase difference, a defective pixel storage unit 22 that stores defective pixel information, and a defective pixel compensating unit 20 that compensates a signal of a defective pixel based on an output of the defective pixel storage unit. The defective pixel compensating unit 20 compensates the signal of the defective pixel using a signal obtained from a pixel disposed in a direction different from the pupil division direction with respect to the defective pixel.Type: GrantFiled: February 13, 2012Date of Patent: October 7, 2014Assignee: Canon Kabushiki KaishaInventor: Keiji Nagata
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Patent number: 8653617Abstract: This invention provides a solid-state image sensing apparatus in which a sensor portion that performs photo-electric conversion and plural layers of wiring lines including a signal line for the sensor portion are formed on a semiconductor substrate; which includes an effective pixel portion configured such that light enters the sensor portion, and an optical black portion shielded so that the light does not enter the sensor portion; and which has a light-receiving surface on the back surface side of the semiconductor substrate. The optical black portion includes the sensor portion, a first light-shielding film formed closer to the back surface side of the semiconductor substrate than the sensor portion, and a second light-shielding film formed closer to the front surface side of the semiconductor substrate than the sensor portion.Type: GrantFiled: October 8, 2012Date of Patent: February 18, 2014Assignee: Canon Kabushiki KaishaInventor: Keiji Nagata
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Publication number: 20140002702Abstract: A solid-state image sensor including an effective pixel area in which a plurality of pixels are two-dimensionally arranged, each of the plurality of pixels comprising a photoelectric conversion portion configured to generate charges by photoelectric conversion, a charge holding portion configured to hold the charges generated by the photoelectric conversion portion, a floating diffusion portion configured to convert the charges from the charge holding portion into a voltage, a first transfer portion configured to transfer the charges of the photoelectric conversion portion to the charge holding portion, and a second transfer portion configured to transfer the charges of the charge holding portion to the floating diffusion portion, wherein the charge holding portion of each of the plurality of pixels is arranged on the inner side of the photoelectric conversion portion with respect to the center of the effective pixel area.Type: ApplicationFiled: June 20, 2013Publication date: January 2, 2014Inventors: Hideki Ikedo, Keiji Nagata
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Publication number: 20130032917Abstract: This invention provides a solid-state image sensing apparatus in which a sensor portion that performs photo-electric conversion and plural layers of wiring lines including a signal line for the sensor portion are formed on a semiconductor substrate; which includes an effective pixel portion configured such that light enters the sensor portion, and an optical black portion shielded so that the light does not enter the sensor portion; and which has a light-receiving surface on the back surface side of the semiconductor substrate. The optical black portion includes the sensor portion, a first light-shielding film formed closer to the back surface side of the semiconductor substrate than the sensor portion, and a second light-shielding film formed closer to the front surface side of the semiconductor substrate than the sensor portion.Type: ApplicationFiled: October 8, 2012Publication date: February 7, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Keiji Nagata
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Patent number: 8319305Abstract: This invention provides a solid-state image sensing apparatus in which a sensor portion that performs photo-electric conversion and plural layers of wiring lines including a signal line for the sensor portion are formed on a semiconductor substrate; which includes an effective pixel portion configured such that light enters the sensor portion, and an optical black portion shielded so that the light does not enter the sensor portion; and which has a light-receiving surface on the back surface side of the semiconductor substrate. The optical black portion includes the sensor portion, a first light-shielding film formed closer to the back surface side of the semiconductor substrate than the sensor portion, and a second light-shielding film formed closer to the front surface side of the semiconductor substrate than the sensor portion.Type: GrantFiled: March 31, 2010Date of Patent: November 27, 2012Assignee: Canon Kabushiki KaishaInventor: Keiji Nagata
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Publication number: 20120212654Abstract: An image pickup apparatus includes an image pickup element 10 that includes unit cells capable of individually reading signals from pixels that receive light beams transmitting through different pupil positions of an image pickup lens 5, a detector 20 that generates a pair of image signals in a pupil division direction using a signal from a pixel corresponding to each of the unit cells to perform focus detection based on a phase difference, a defective pixel storage unit 22 that stores defective pixel information, and a defective pixel compensating unit 20 that compensates a signal of a defective pixel based on an output of the defective pixel storage unit. The defective pixel compensating unit 20 compensates the signal of the defective pixel using a signal obtained from a pixel disposed in a direction different from the pupil division direction with respect to the defective pixel.Type: ApplicationFiled: February 13, 2012Publication date: August 23, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Keiji Nagata
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Publication number: 20120212581Abstract: An image capture apparatus includes an image capture unit that has a plurality of unit pixels each including a plurality of photo-electric conversion units per condenser unit, and a recording unit that records captured image signals, which are captured by the image capture unit and are respectively read out from the plurality of photo-electric conversion units, and the recording unit records identification information which allows to identify each photo-electric conversion unit used to obtain the captured image signal in association with that captured image signal.Type: ApplicationFiled: January 30, 2012Publication date: August 23, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Keiji Nagata, Makiko Saito
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Patent number: 8203629Abstract: An image sensing apparatus includes an image sensor provided with a plurality of pixels each having a photoelectric converter that receives light from an object and converts the received light to a signal, a semiconductor region to which the signal from the photoelectric converter is transferred, a transfer unit that transfers the signal of the photoelectric converter to the semiconductor region, and a readout unit that reads out a signal from the semiconductor region, and a correction unit that corrects a first signal read out from the photoelectric converter, based on a second signal obtained by reading out the signal accumulated in the semiconductor region.Type: GrantFiled: October 23, 2007Date of Patent: June 19, 2012Assignee: Canon Kabushiki KaishaInventor: Keiji Nagata
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Publication number: 20120043636Abstract: This invention provides a solid-state image sensing apparatus in which a sensor portion that performs photo-electric conversion and plural layers of wiring lines including a signal line for the sensor portion are formed on a semiconductor substrate; which includes an effective pixel portion configured such that light enters the sensor portion, and an optical black portion shielded so that the light does not enter the sensor portion; and which has a light-receiving surface on the back surface side of the semiconductor substrate. The optical black portion includes the sensor portion, a first light-shielding film formed closer to the back surface side of the semiconductor substrate than the sensor portion, and a second light-shielding film formed closer to the front surface side of the semiconductor substrate than the sensor portion.Type: ApplicationFiled: March 31, 2010Publication date: February 23, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Keiji Nagata
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Publication number: 20080100728Abstract: An image sensing apparatus includes an image sensor provided with a plurality of pixels each having a photoelectric converter that receives light from an object and converts the received light to a signal, a semiconductor region to which the signal from the photoelectric converter is transferred, a transfer unit that transfers the signal of the photoelectric converter to the semiconductor region, and a readout unit that reads out a signal from the semiconductor region, and a correction unit that corrects a first signal read out from the photoelectric converter, based on a second signal obtained by reading out the signal accumulated in the semiconductor region.Type: ApplicationFiled: October 23, 2007Publication date: May 1, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Keiji Nagata
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Patent number: 7187631Abstract: A disc apparatus (10) includes an optical lens (14). A laser beam is irradiated onto a recording surface of the magneto-optical disc (68) through the optical lens (14), and a TE signal or an RF signal is detected on the basis of the laser beam reflected by the recording surface. Herein, an MPU (50) replaces the optical lens (14) in an optical axis direction, and a TE signal detection circuit (42) or an RF signal detection circuit (60) detects the TE signal or the RF signal at each of lens positions. A laser power is adjusted by the MPU (50) such that amplitude of each of the TE signal or the RF signal detected is below a saturation value. When a parameter is adjusted, a position of the optical lens (14) is controlled such that the amplitude of the TE signal or the RF signal detected thereafter is maximized.Type: GrantFiled: January 9, 2002Date of Patent: March 6, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Shigekazu Minechika, Hideaki Yano, Keiji Nagata, Yoshihiro Aoi, Ichizo Sakamoto, Kenji Asano, Tadashi Okajima
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Publication number: 20050088930Abstract: A disc apparatus (10) includes an optical lens (14). A laser beam is irradiated onto a recording surface of the magneto-optical disc (68) through the optical lens (14), and a TE signal or an RF signal is detected on the basis of the laser beam reflected by the recording surface. Herein, an MPU (50) replaces the optical lens (14) in an optical axis direction, and a TE signal detection circuit (42) or an RF signal detection circuit (60) detects the TE signal or the RF signal at each of lens positions. A laser power is adjusted by the MPU (50) such that amplitude of each of the TE signal or the RF signal detected is below a saturation value. When a parameter is adjusted, a position of the optical lens (14) is controlled such that the amplitude of the TE signal or the RF signal detected thereafter is maximized.Type: ApplicationFiled: January 9, 2002Publication date: April 28, 2005Inventors: Shigekazu Minechika, Hideaki Yano, Keiji Nagata, Yoshihiro Aoi, Ichizo Sakamoto, Kenji Asano, Tadashi Okajima
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Patent number: 6625397Abstract: A focus detecting device having an auxiliary light mode, in which, when a focus is not appropriately first detected, a focus detecting operation for detecting the focus is executed with auxiliary light being projected. The focus detecting device includes a plurality of focus detecting areas, a detecting device for detecting a focus in each of the plurality of focus detecting areas, and a determination circuit for determining whether or not the focus detecting operation is to be executed in the auxiliary light mode based on the detected focus and a determination criterion, wherein the determination criterion is set to a predetermined value according to at least one of the plurality of focus detecting areas. Further, the focus detecting areas may be divided into groups each having at least two focus detecting areas, and the determination criterion can be set to a different predetermined value for each of the groups.Type: GrantFiled: May 30, 2001Date of Patent: September 23, 2003Assignee: Canon Kabushiki KaishaInventor: Keiji Nagata
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Patent number: 6577344Abstract: A focus state detection apparatus for detecting focus state on the basis of signals outputted from a pair of area sensors each of which is configured in two dimension in accordance with an image of an object passing through an optical system and formed on the pair of area sensors. Each of the pair of area sensors is divided into a plurality of areas each of which can be controlled independently, and charging pixels of the area sensors is controlled by each pair of corresponding divided areas of the area sensors.Type: GrantFiled: September 23, 1997Date of Patent: June 10, 2003Assignee: Canon Kabushiki KaishaInventors: Terutake Kadohara, Keiji Ohtaka, Yasuo Suda, Keiji Nagata, Kenichiro Yamashita
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Publication number: 20020003582Abstract: A focus state detection apparatus for detecting focus state on the basis of signals outputted from a pair of area sensors each of which is configured in two dimension in accordance with an image of an object passing through an optical system and formed on the pair of area sensors. Each of the pair of area sensors is divided into a plurality of areas each of which can be controlled independently, and charging pixels of the area sensors is controlled by each pair of corresponding divided areas of the area sensors.Type: ApplicationFiled: September 23, 1997Publication date: January 10, 2002Inventors: TERUTAKE KADOHARA, KEIJI OHTAKA, YASUO SUDA, KEIJI NAGATA, KENICHIRO YAMASHITA
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Publication number: 20020003958Abstract: A focus detecting device having an auxiliary light mode, in which, when a focus is not appropriately first detected, a focus detecting operation for detecting the focus is executed with auxiliary light being projected. The focus detecting device includes a plurality of focus detecting areas, a detecting device for detecting a focus in each of the plurality of focus detecting areas, and a determination circuit for determining whether or not the focus detecting operation is to be executed in the auxiliary light mode based on the detected focus and a determination criterion, wherein the determination criterion is set to a predetermined value according to at least one of the plurality of focus detecting areas. Further, the focus detecting areas may be divided into groups each having at least two focus detecting areas, and the determination criterion can be set to a different predetermined value for each of the groups.Type: ApplicationFiled: May 30, 2001Publication date: January 10, 2002Inventor: Keiji Nagata
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Patent number: 6213836Abstract: The present invention relates to a cathode ray tube having an inner magnetic shield and to a method for fixing the inner magnetic shield. The inner magnetic shield is fixed to a frame supporting a shadow mask simply with fixing members. First engagement holes are provided on each side of a first flange portion of the frame, and second engagement holes are provided on each side of a second flange portion of the inner magnetic shield. Each side of the second engagement hole is provided with a folding portion. The fixing member is inserted so as to put into the first engagement hole and the second engagement hole facing the first engagement hole from the side of the inner magnetic shield.Type: GrantFiled: October 5, 1999Date of Patent: April 10, 2001Assignees: Matsushita Electronics Corporation, Muramoto Industry Co., Ltd.Inventors: Keiji Nagata, Masanori Morii, Toshio Ishii, Tadashi Muramoto