Patents Assigned to Canon Kabushiki Kaisha
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Publication number: 20250060700Abstract: An image forming apparatus includes an image forming unit, a fixing unit including a rotary member pair configured to form a first nip portion, a cooling unit configured to form a second nip portion, a drive unit, an obtaining unit configured to obtain information regarding torque of the drive unit, and a control unit. In a state where the recording material is nipped by the first nip portion and the second nip portion, if the information is equal to or less than a threshold value, the control unit is configured to set a conveyance speed of the cooling unit at a first speed larger than a conveyance speed of the fixing unit, and if the information is larger than the threshold value, the control unit is configured to set the conveyance speed of the cooling unit at a second speed smaller than the conveyance speed of the fixing unit.Type: ApplicationFiled: November 5, 2024Publication date: February 20, 2025Applicant: CANON KABUSHIKI KAISHAInventors: KEITA KONDO, KENICHI TANAKA, ATSUSHI YOSHIDA
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Patent number: 12231677Abstract: A method of encoding a motion vector predictor index, in particular a Merge index, comprises generating a list of motion vector predictor candidates, in particular merge candidates. The list includes an ATMVP candidate. One of the motion vector predictor candidates in the list is selected. A motion vector predictor index for the selected motion vector predictor candidate is generated using CABAC coding. One or more bits of the motion vector predictor index are bypass CABAC coded. For example, only the first bit of the motion vector predictor index is CABAC coded using a single context.Type: GrantFiled: February 17, 2023Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Guillaume Laroche, Christophe Gisquet, Patrice Onno, Jonathan Taquet
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Patent number: 12230915Abstract: A connector unit includes a connector mounting member having a mounting hole, and a connector passed through the mounting hole and attached to the connector mounting member. The connector includes a terminal portion to which another connector is configured to be connected, and a hook portion engaged with an edge portion of the mounting hole. The connector mounting member includes a panel portion on which the mounting hole is formed, an extending portion extending from the panel portion along an inserting direction of the another connector with respect to the connector, and a regulating portion projected from the extending portion at a position abutting against or close to an end portion opposite to the terminal portion of the connector in the inserting direction. A distance between the regulating portion and the panel portion is shorter than a distance between the terminal portion of the connector and the end portion.Type: GrantFiled: November 2, 2023Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventor: Yoshiaki Hara
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Patent number: 12228790Abstract: One embodiment of the present invention provides an image processing method, the method comprising: acquiring a plurality of viewpoint images; generating a contrast distribution from the plurality of viewpoint images; and generating an output image by performing image processing in accordance with the contrast distribution with respect to an image based on the plurality of viewpoint images.Type: GrantFiled: January 7, 2022Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventor: Koichi Fukuda
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Patent number: 12227012Abstract: An inkjet printing apparatus includes a print head including a plurality of nozzles, a cap, and a storing unit, and a control unit. The control unit controls the print head to start and perform an intra-standby preliminary discharge operation where a preliminary discharge operation to discharge ink into a cap is performed at predetermined time intervals during a standby period after the print head finishes a printing operation to print an image, continue the intra-standby preliminary discharge operation if an accumulated value of an amount of ink stored in a storing unit during the preliminary discharge operation is not greater than a threshold value, stop the intra-standby preliminary discharge operation if the stored accumulated value of the amount of ink is greater than the threshold value, and bring the print head into contact with the cap and terminating the standby period if the standby period exceeds a predetermined time period.Type: GrantFiled: November 22, 2022Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Murayama, Sonoko Egawa
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Patent number: 12227015Abstract: A technique capable of correcting the inclination of a light in the height direction to suppress deterioration in the printing quality is to be provided. Regarding a detecting unit capable of detecting a placed nail portion by use of a light whose distance in a predetermined direction is maintained to a predetermined distance, a correction value for correcting the deviation of the nail portion from a position corresponding to the predetermined distance in the predetermined direction, which is caused by the inclination of the light, is obtained. Further, based on a result of the detection by the detecting unit and the correction value, a condition for printing performed by a printing unit on the nail portion is adjusted for printing.Type: GrantFiled: February 22, 2022Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventor: Kohei Ogi
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Patent number: 12229221Abstract: A recording medium determination apparatus includes an image data acquisition unit configured to acquire image data obtained by capturing an image of a predetermined area in a recording medium, a first extraction unit configured to extract a first feature amount by processing the image data using a first parameter, a second extraction unit configured to extract a second feature amount by processing the image data using a second parameter different from the first parameter, and a determination unit configured to determine a type of the recording medium based on the first feature amount and the second feature amount.Type: GrantFiled: October 27, 2021Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Shu Tanaka, Naohiro Hosokawa, Takuhiro Ogushi
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Patent number: 12229459Abstract: Information to be displayed (display information) on a display of an operation unit for use in operating of an image forming apparatus corresponds to each user. Based on a first instruction from the operation unit, the operation unit reads out the display information stored in a second memory provided in the image forming apparatus and stores the display information into a first memory. Based on a second instruction from the operation unit, the display information is transmitted from the operation unit to the image forming apparatus and is stored in the second memory provided in the image forming apparatus.Type: GrantFiled: July 25, 2023Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventor: Kenji Fukushi
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Patent number: 12228871Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.Type: GrantFiled: November 21, 2023Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Hideki Ohta, Terutaka Endo, Seiji Obata, Jiro Moriya, Takayuki Mizuta
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Patent number: 12226936Abstract: A substrate processing apparatus that can radiate light on a composition in an optimum radiation amount based on acquired spectral sensitivity characteristics can be provided. A substrate processing apparatus configured to perform pattern formation processing on a composition on a substrate includes a first radiation unit configured to radiate first light onto the substrate, a dispenser configured to apply the composition to a first position inside the substrate processing apparatus, a template holding unit configured to hold a template to be brought in contact with the composition on the substrate, and a controller configured to control a radiation amount of the first light to be radiated by the first radiation unit based on spectral sensitivity characteristics of the composition that are measured in advance.Type: GrantFiled: May 3, 2022Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventors: Hiroki Takada, Ken-ichiro Shinoda, Osamu Yasunobe
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Patent number: 12231604Abstract: An image processing apparatus communicates with a chat server configured to control sharing of received image data in a transmission destination group based on received information about the group. The image processing apparatus includes a registration unit configured to register a group of the chat server in association with an object, the group serving as a transmission destination of image data, an obtaining unit configured to obtain identification information corresponding to the group from the chat server, a display unit configured to display the registered object, and a transmission unit configured to transmit, if the displayed object is selected, the image data and the information about the group serving as the transmission destination to the chat server. The display unit displays the identification information with the object.Type: GrantFiled: October 2, 2023Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Yoshihiro Tsukada, Takuya Ushinohama
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Patent number: 12228865Abstract: The present invention provides an image forming apparatus including: a first moving member pressed and moved by an openable/closable member when the openable/closable member is opened, and switching a cartridge from a state where the cartridge is positioned in an image forming position to a state where the positioning is released; and a second moving member pressed and moved by the openable/closable member when the openable/closable member is opened, and moving the exposure member from an exposure position to a retracted position, wherein when the positioning of the cartridge is released, a reaction force applied from the first moving member to the openable/closable member reaches a first peak, when the exposure member is moved to the retracted position, a reaction force applied from the second moving member to the openable/closable member reaches a second peak, and timing of the first peak is different from timing of the second peak.Type: GrantFiled: November 8, 2022Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Ryuji Tanaami, Keita Nakajima, Koji Miwa, Yuji Mitsui
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Patent number: 12228877Abstract: A process cartridge includes a photosensitive drum unit provided with a photosensitive drum that is rotatable about a first rotational axis. The photosensitive drum unit also includes a first positioning portion configured to position the process cartridge to a main assembly in the mounting direction. The photosensitive drum further includes a second positioning portion configured to position the process cartridge to the main assembly so as not to rotate relative to the main assembly. The process cartridge also includes a developing unit including a developing roller rotatable about a second rotational axis, with the developing unit being provided with a storing means having a contact surface.Type: GrantFiled: September 1, 2023Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Munetsugu, Ryota Shibuya, Goshi Ozaki
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Patent number: 12228875Abstract: An image forming apparatus includes a transfer unit, a fixing unit, a conveyance unit, and a control unit. The control unit selectively performs a plurality of modes including a first mode and a second mode. The first mode is a mode in which, when a grammage of a sheet is a first grammage, if a leading edge of the sheet has reached the fixing unit, the control unit controls the first suction unit such that suction force of the first suction unit becomes first suction force. The second mode is a mode in which, when the grammage of the sheet is a second grammage smaller than the first grammage, if a leading edge of the sheet has reached the fixing unit, the control unit controls the first suction unit such that the suction force of the first suction unit becomes second suction force smaller than the first suction force.Type: GrantFiled: August 2, 2023Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventor: Masashi Takano
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Patent number: 12228880Abstract: An image forming apparatus includes a photoreceptor; an exposure portion configured to include a substrate having a plurality of light emitting portions arranged along a rotation axis direction of the photoreceptor and exposes the photoreceptor to form a latent image on the photoreceptor; a development portion configured to develop a latent image formed on the photoreceptor with toner; an exposure duct configured to guide the airflow generated by a first fan along a longitudinal direction of the substrate; a development duct configured to guide the airflow generated by a second fan along the rotation axis direction of the development portion; and a first duct communicating with the exposure duct and the development duct, the first duct configured to exhaust air introduced from the exposure duct and exhaust air introduced from the development duct.Type: GrantFiled: September 6, 2023Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventor: Naoki Hashimoto
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Patent number: 12228708Abstract: An optical system includes an aperture stop closest to an object and a plurality of lenses. The plurality of lenses includes a first positive lens convex toward an object side, a first negative lens convex toward the object side, a first cemented lens, and a second cemented lens arranged consecutively in this order from the object side to an image side. The first cemented lens and the second cemented lens each include a negative lens concave toward the object side and a positive lens cemented to the negative lens, and the negative lens and the positive lens are arranged in this order from the object side to the image side.Type: GrantFiled: March 13, 2023Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Naoto Doujou, Kazuhiko Kajiyama
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Patent number: 12228882Abstract: A toner comprising: a toner particle comprising a binder resin and a hydrocarbon wax; and inorganic fine particles, wherein the inorganic fine particles include silica fine particles surface-treated with specific polydimethylsiloxanes, a total amount of trimethylsilanol in the silica fine particles is from 1.0 ppm to 5.0 ppm, where a standard value of an amount of ions of an ester group is measured by time-of-flight secondary ion mass spectrometry, one or more peaks of the standard value are present within a range of 100 nm from the surface of the toner particle, and the maximum value A(d max) among the peaks of the standard value and the standard value A(0) on the surface of the toner particle satisfy the following relationships: 1.05?A(d max)/A(0)?5.00, A(0)?0.010.Type: GrantFiled: April 21, 2022Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventors: Atsuhiko Ohmori, Hiroki Kagawa, Keisuke Adachi, Tomoko Sugita
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Patent number: 12228712Abstract: A zoom lens includes in order from an object side, a negative first lens unit and a rear lens unit including one or more lens units, an interval between adjacent lens units being changed during zooming, in which the first lens unit and the one or more lens units can be set to first, second and third zoom states, in which angles of view at first and second image heights at the first zoom state are respectively 160° or larger, in which a distortion at the first image height at the third zoom state is ?30% or more, and the first image height, the second image height, a total length of the zoom lens at a wide angle end, and a focal length at the wide angle end are appropriately set.Type: GrantFiled: November 29, 2021Date of Patent: February 18, 2025Assignee: CANON KABUSHIKI KAISHAInventor: Satoshi Umehara
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Patent number: 12227010Abstract: A technique for suppressing ejection failure at an ejection port, which is caused by reaction of reaction liquid and ink during a wiping operation, is to be provided. Before the ejection port surface, on which the first ejection port array that is capable of ejecting the ink and the second ejection port array that is capable of ejecting the reaction liquid which reacts with the ink are formed, is wiped by the maintenance unit that is capable of receiving the ink and the reaction liquid, ink that does not contribute to printing is ejected to an area of the maintenance unit between an area abutted by the first ejection port array during the wiping and an area abutted by the second ejection port array during the wiping.Type: GrantFiled: March 16, 2022Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Yosuke Ishii, Rie Takekoshi, Keita Ishimi
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Patent number: D1062862Type: GrantFiled: September 12, 2022Date of Patent: February 18, 2025Assignee: Canon Kabushiki KaishaInventors: Keitaro Tsuji, Hiroki Nakanishi