Patents by Inventor Naoki Iwasaki
Naoki Iwasaki 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: 11969712Abstract: A catalyst for purification of exhaust gas in which Pd-based nanoparticles and ceria nanoparticles are supported on a composite metal oxide support containing alumina, ceria, and zirconia, wherein a molar ratio (Ce/Pd) of Ce and Pd supported on the support is 1 to 8, a proximity ? between Pd and Ce is 0.15 to 0.50, wherein the proximity ? is determined, based on Pd and Ce distribution maps in an element mapping image of energy dispersive X-ray analysis, by the following formula (1): ? = ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( ( I ? ( i , j ) - I ave ) ? ( T ? ( i , j ) - T ave ) ) ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( I ? ( i , j ) - I ave ) 2 - ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( T ? ( i , j ) - T ave ) 2 , ( 1 ) a Pd dispersity after a heat-resistance test at 1050° C. for 25 hours is 0.8% or more.Type: GrantFiled: November 2, 2022Date of Patent: April 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoki Kumatani, Akira Morikawa, Masaoki Iwasaki, Miho Hatanaka, Taizo Yoshinaga, Masahide Miura, Takahiro Hayashi
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Patent number: 11947275Abstract: Provided is an electrophotographic apparatus including: an electrophotographic photosensitive member; a voltage application unit configured to cause discharge from an electroconductive member to the electrophotographic photosensitive member; a charge transfer amount detection unit configured to detect a charge transfer amount per unit time resulting from the discharge from the electroconductive member to the electrophotographic photosensitive member; and a charging potential control unit, wherein V1 and V2 defined by specific procedures for the electrophotographic photosensitive member satisfy a relationship represented by the following expression (E-4): 100V1<V2?V1 (E-4), and wherein the charging potential control unit is configured to control the charging potential of the electrophotographic photosensitive member at the time of image formation.Type: GrantFiled: February 14, 2023Date of Patent: April 2, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Shuhei Iwasaki, Kaname Watariguchi, Akihiro Maruyama, Kenichi Kaku, Michiyo Sekiya, Kohei Makisumi, Tatsuya Yamaai, Hideharu Shimozawa, Naoki Fukushima
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Publication number: 20240073522Abstract: An image capturing apparatus includes an object detection unit configured to detect an object from an image signal, a discriminating unit configured to discriminate a type of the object, a setting unit configured to set a focus detection region divided in a plurality of sub-regions corresponding to the region of the object, a focus detection unit configured to detect information about an in-focus position for each of the plurality of sub-regions, a prediction unit configured to predict an in-focus position according to a movement of the object in a depth direction, and a selection unit configured to select an in-focus position of which sub-region among the plurality of sub-regions to employ as the in-focus position of the object, in accordance with the type of the object and the in-focus position being predicted.Type: ApplicationFiled: August 18, 2023Publication date: February 29, 2024Inventor: Naoki IWASAKI
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Patent number: 11716536Abstract: A device includes a focus detection unit configured to detect a defocus amount based on a focus detection signal output from an image capturing device, an object detection unit configured to detect a specific object based on image data output from the image capturing device, and a processing unit configured to perform first obstacle detection processing detecting an obstacle based on characteristics of the defocus amount on the specific object, and to perform second obstacle detection processing detecting an obstacle higher in spatial frequency than the specific object.Type: GrantFiled: April 16, 2021Date of Patent: August 1, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Naoki Iwasaki, Yu Inagaki, Kuniaki Sugitani, Maiko Takao
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Patent number: 11431913Abstract: An apparatus that moves a focus lens, performs a scan operation of sequentially acquiring a focus signal, acquires a focus position of the focus lens based on the focus signal, and includes: a determination unit configured to determine whether an object is blinking at a predetermined period, and a processing unit configured to perform a filtering process in a time axis direction on the acquired focus signal where the object is blinking at the predetermined period.Type: GrantFiled: March 25, 2020Date of Patent: August 30, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Hiroaki Kurisu, Naoki Iwasaki
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Publication number: 20210337129Abstract: A device includes a focus detection unit configured to detect a defocus amount based on a focus detection signal output from an image capturing device, an object detection unit configured to detect a specific object based on image data output from the image capturing device, and a processing unit configured to perform first obstacle detection processing detecting an obstacle based on characteristics of the defocus amount on the specific object, and to perform second obstacle detection processing detecting an obstacle higher in spatial frequency than the specific object.Type: ApplicationFiled: April 16, 2021Publication date: October 28, 2021Inventors: Naoki Iwasaki, Yu Inagaki, Kuniaki Sugitani, Maiko Takao
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Patent number: 10893188Abstract: An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.Type: GrantFiled: January 25, 2019Date of Patent: January 12, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Masaki Tokioka, Hiromi Kotoku, Hidetoshi Abe, Takeshi Omata, Kenya Fukabori, Naoki Iwasaki, Hiroaki Kurisu
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Publication number: 20200314315Abstract: An apparatus that moves a focus lens, performs a scan operation of sequentially acquiring a focus signal, acquires a focus position of the focus lens based on the focus signal, and includes: a determination unit configured to determine whether an object is blinking at a predetermined period, and a processing unit configured to perform a filtering process in a time axis direction on the acquired focus signal where the object is blinking at the predetermined period.Type: ApplicationFiled: March 25, 2020Publication date: October 1, 2020Inventors: Hiroaki Kurisu, Naoki Iwasaki
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Patent number: 10477101Abstract: A focus detection apparatus comprises: a reception unit configured to receive designation of a region within an image; a first setting unit configured to set one focus detection mode out of at least a first mode for performing focus detection with priority to a region of a subject and a second mode for performing focus detection with priority to the designated region; a second setting unit configured to set a focus detection region; a selection unit configured to select a region to focus on based on a focus detection result of the focus detection region; and a control unit, wherein the second setting unit, in the first mode, sets the focus detection region based on a result of a detection of a subject, and is the second mode, sets the focus detection region based on the designated region.Type: GrantFiled: June 19, 2017Date of Patent: November 12, 2019Assignee: CANON KABUSHIKI KAISHAInventor: Naoki Iwasaki
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Publication number: 20190238756Abstract: An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.Type: ApplicationFiled: January 25, 2019Publication date: August 1, 2019Inventors: Masaki Tokioka, Hiromi Kotoku, Hidetoshi Abe, Takeshi Omata, Kenya Fukabori, Naoki Iwasaki, Hiroaki Kurisu
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Patent number: 10326925Abstract: A control apparatus (204, 212) includes a calculator (204) that calculates a defocus amount based on a first signal and a second signal that correspond to light beams passing through different pupil regions of an image capturing optical system (101, 102, 103) from each other, and a focus adjuster (212) that performs focus adjusting operation based on the defocus amount, and the focus adjuster is configured to change a detection property of the first signal and the second signal depending on a type of the focus adjusting operation.Type: GrantFiled: August 4, 2017Date of Patent: June 18, 2019Assignee: Canon Kabushiki KaishaInventors: Atsuya Kawanishi, Yohei Matsui, Naoki Iwasaki
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Patent number: 10264173Abstract: An image capturing apparatus, comprises an image sensor having focus detection pixels configured to detect a phase difference of the subject image, a calculation unit configured to calculate a defocus amount of the subject image based on signals of the focus detection pixels, a focus control unit configured to adjust focus of the imaging optical system based on the defocus amount that was calculated, and a determination unit configured to determine whether or not the imaging optical system is in an in-focus state by comparing the defocus amount to a predetermined threshold value, wherein the determination unit sets a larger value for the predetermined threshold value in a case where the imaging optical system focuses on a moving subject than in a case where the imaging optical system focuses on a still subject.Type: GrantFiled: February 1, 2016Date of Patent: April 16, 2019Assignee: Canon Kabushiki KaishaInventor: Naoki Iwasaki
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Patent number: 10244159Abstract: In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.Type: GrantFiled: June 21, 2017Date of Patent: March 26, 2019Assignee: Canon Kabushiki KaishaInventors: Kazuki Konishi, Naoki Iwasaki, Akiko Wada
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Patent number: 10116857Abstract: An imaging apparatus includes: a focus detection unit that detects a defocus amount using the pair of parallax image signals; a control unit that controls adjustment of a focus position based on the defocus amount; a first determination unit that determines whether a subject with a repetitive pattern is being imaged in a focus detection area; and a second determination unit that determines whether a degree of image blurring is equal to or more than a predetermined degree of blurring. When the first determination unit determines that a subject with a repetitive pattern is being imaged and the second determination unit determines that a degree of image blurring is equal to or more than the predetermined degree of blurring, the control unit moves a focus lens to acquire a new defocus amount.Type: GrantFiled: September 7, 2017Date of Patent: October 30, 2018Assignee: Canon Kabushiki KaishaInventor: Naoki Iwasaki
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Publication number: 20180077340Abstract: An imaging apparatus includes: a focus detection unit that detects a defocus amount using the pair of parallax image signals; a control unit that controls adjustment of a focus position based on the defocus amount; a first determination unit that determines whether a subject with a repetitive pattern is being imaged in a focus detection area; and a second determination unit that determines whether a degree of image blurring is equal to or more than a predetermined degree of blurring. When the first determination unit determines that a subject with a repetitive pattern is being imaged and the second determination unit determines that a degree of image blurring is equal to or more than the predetermined degree of blurring, the control unit moves a focus lens to acquire a new defocus amount.Type: ApplicationFiled: September 7, 2017Publication date: March 15, 2018Inventor: Naoki Iwasaki
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Publication number: 20180048805Abstract: A control apparatus (204, 212) includes a calculator (204) that calculates a defocus amount based on a first signal and a second signal that correspond to light beams passing through different pupil regions of an image capturing optical system (101, 102, 103) from each other, and a focus adjuster (212) that performs focus adjusting operation based on the defocus amount, and the focus adjuster is configured to change a detection property of the first signal and the second signal depending on a type of the focus adjusting operation.Type: ApplicationFiled: August 4, 2017Publication date: February 15, 2018Inventors: Atsuya Kawanishi, Yohei Matsui, Naoki Iwasaki
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Publication number: 20180007168Abstract: A method includes generating a description of a specific geographic context, and providing the description of the specific geographic context to a network server. The method also includes receiving, from the network server: (i) an ordered list of items, each including respective geographic data related to the specific geographic context, and (ii) an indication of an action to be executed at the client device when a user accesses an end of the list of items via the user interface. The list of items is presented to a user via a user interface, and, in response to an indication that the end of the list of items is reached by the user, the indicated action is executed.Type: ApplicationFiled: July 9, 2014Publication date: January 4, 2018Inventors: Naoki Iwasaki, Satoshi Niwa, Takahiro Kosakai, David Robert Gordon
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Publication number: 20170366739Abstract: A focus detection apparatus comprises: a reception unit configured to receive designation of a region within an image; a first setting unit configured to set one focus detection mode out of at least a first mode for performing focus detection with priority to a region of a subject and a second mode for performing focus detection with priority to the designated region; a second setting unit configured to set a focus detection region; a selection unit configured to select a region to focus on based on a focus detection result of the focus detection region; and a control unit, wherein the second setting unit, in the first mode, sets the focus detection region based on a result of a detection of a subject, and is the second mode, sets the focus detection region based on the designated region.Type: ApplicationFiled: June 19, 2017Publication date: December 21, 2017Inventor: Naoki Iwasaki
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Patent number: 9826140Abstract: In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.Type: GrantFiled: September 16, 2014Date of Patent: November 21, 2017Assignee: Canon Kabushiki KaishaInventors: Kazuki Konishi, Naoki Iwasaki, Akiko Wada
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Publication number: 20170289440Abstract: In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.Type: ApplicationFiled: June 21, 2017Publication date: October 5, 2017Inventors: Kazuki Konishi, Naoki Iwasaki, Akiko Wada