Canon Patents

Canon Inc. manufactures office appliances, including multifunction devices, copying machines, laser printers, and inkjet printers. It also develops imaging systems, such as digital cameras and digital video camcorders, as well as lenses and photographic accessories. Its third-largest product segment is semiconductor lithography equipment.

Canon Patents by Type

  • Canon Patents Granted: Canon patents that have been granted by the United States Patent and Trademark Office (USPTO).
  • Canon Patent Applications: Canon patent applications that are pending before the United States Patent and Trademark Office (USPTO).
  • Patent number: 9573132
    Abstract: The present invention relates to systems and methods for monitoring the amplification of DNA molecules and the dissociation behavior of the DNA molecules. A method according to one embodiment of the invention may include the steps of: forcing a sample of a solution containing real-time PCR reagents to move though a channel; and while the sample is moving through an analysis region of the channel, performing the steps of: (a) cycling the temperature of the sample until the occurrence of a predetermined event; (b) after performing step (a), causing the sample's temperature to gradually increase from a first temperature to a second temperature; and (c) while the step of gradually increasing the sample's temperature is performed, using an image sensor to monitor emissions from the sample.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 21, 2017
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Kenton C. Hasson, Gregory A. Dale
  • Patent number: 9578448
    Abstract: An operation for an operation unit is detected. If the operation is detected and a communication unit executes close proximity wireless communication with an external apparatus, a confirmation screen for confirming execution of processing corresponding to the operation for the operation unit is displayed.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yuki Futatsumori
  • Patent number: 9578482
    Abstract: This invention relates to a communication apparatus capable of facilitating a connection with a device in a network by using a discovery protocol for discovering a device in a network. After selecting a device based on pieces of device information transmitted from devices in the network in response to a search command to search devices in the network, the communication apparatus transmits a notification signal to notify devices in the network of the presence of the communication apparatus. If a connection request received from a device which has received the notification signal is one transmitted from the selected device, the communication apparatus transmits a response representing that connection is accepted for the connection request.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koshi Tokunaga
  • Patent number: 9578340
    Abstract: If the picture identifier of a first frame and the picture identifier of a second frame match, a rewriting unit rewrites the picture identifier and the slice type of the first frame.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Tanaka, Yoshinori Hayashi, Koji Okawa
  • Patent number: 9578327
    Abstract: An encoding apparatus for encoding video data captured by a plurality of imaging units by a predetermined data unit, includes an encoding unit configured to refer to a first data unit included in video data captured by a first imaging unit to encode a second data unit included in the video data captured by the first imaging unit, and refer to a third data unit included in video data captured by a second imaging unit to encode a fourth data unit included in the video data captured by the first imaging unit.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shun Sugimoto
  • Patent number: 9578295
    Abstract: A method of displaying an image using at least a first projector and a second projector includes projecting a calibration pattern using the first projector, the calibration pattern being embedded in a first portion of an image projected by the first projector. The method determines a contribution of the second projector to projecting a second portion of the image to an overlap area, the overlap area having a contribution from the first and second projectors, wherein the contribution is an intensity of a color channel. The determined contribution of the second projector to the overlap area is modified to allow the calibration pattern of the first projector to be detectable to a capture device, the modification having a pattern corresponding to the calibration pattern. The image is then displayed using the first projector and the modified contribution of the second projector.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Paul William Morrison, Cameron Murray Edwards, Eric Wai-Shing Chong
  • Patent number: 9572498
    Abstract: An ultrasonic probe includes a light irradiating portion configured to radiate light for generating ultrasonic waves from a light absorber, an ultrasonic transducing portion configured to transduce the ultrasonic waves to an electric signal, and a light guide member configured to introduce light from a light source to the light irradiating portion. A light irradiating region of the light irradiating portion is included within an ultrasonic receiving region of the ultrasonic transducing portion.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Nagae, Yasufumi Asao, Kazuhiko Fukutani, Katsumi Nakagawa
  • Patent number: 9572531
    Abstract: Provided is an object information acquiring apparatus having: a light source; a probe that converts an acoustic wave generated from an object, onto which light is irradiated from the light source, into a detection signal; and a signal processor that obtains characteristic information inside the object based on the detection signal, wherein the signal processor obtains the characteristic information using information regarding a characteristic structure of a measurement target inside the object.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuhiko Fukutani
  • Patent number: 9572546
    Abstract: Provided is an object information acquiring apparatus including a probe in which a plurality of elements transmitting an ultrasound wave to a measurement target region of an object and receiving a reflected wave is arranged in a first direction, and a mechanical scanning unit that moves the probe in the first direction and a direction crossing the first direction. A transmission processor, to each element included in a transmission aperture element row transmitting the ultrasound wave, inputs an input signal for driving the element, and a received signal processor combines received signals obtained by the elements included in a reception aperture element row receiving the ultrasound wave. A generator generates property information on the object from the combined signal, and a controller that determines at least one of the number of elements included in the transmission aperture element row.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroki Takahashi, Hisafumi Ebisawa
  • Patent number: 9573089
    Abstract: A filter frame for holding a filter provided with a plurality of folds so as to alternately form ridges and troughs includes: a first frame portion including a first holding portion, having a side corresponding to a first side of the filter, for holding the filter; a positioning portion, provided on the first holding portion, for determining a position of the filter; and a second frame portion including a second holding portion for holding the filter by sandwiching the filter between the first and second holding portions. The second holding portion is provided so as to be capable of opposing the first holding portion via the filter and has a side corresponding to a second side of the filter.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshimasu Yamaguchi, Takashi Uno
  • Patent number: 9575314
    Abstract: An image forming apparatus includes: a polygon mirror formed with a plurality of reflection surfaces, and a generating device configured to generate a pulse signal required to modulate a laser beam based on image data. The generating device is further configured to generate a pulse signal by inserting or deleting a pulse signal having a width smaller than a width of a pulse signal corresponding to one pixel of the image data into or from a pulse signal corresponding to the image data based on information associated with deviation amounts between lengths of scanning lines formed by the plurality of reflection surfaces and a reference value, so as to adjust the lengths of the scanning lines formed by the plurality of reflection surfaces to be closer to the reference value.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Go Araki
  • Patent number: 9573361
    Abstract: An image-forming method includes a reaction solution-applying step of applying a reaction solution containing a thickening agent and a colorant-aggregating component aggregating a colorant in ink to an intermediate transfer medium, a first ink-applying step of applying a first ink to the intermediate transfer medium provided with the reaction solution, a second ink-applying step of applying a second ink to the intermediate transfer medium provided with the first ink, and a transfer step of transferring an intermediate image formed on the intermediate transfer medium provided with the second ink to a recording medium. An ink layer formed on the intermediate transfer medium by applying the first ink thereto has a yield value of 0.5 Pa or more.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinsuke Tsuji, Tsuyoshi Kanke, Takashi Imai, Yuichiro Kanasugi, Itaru Tsuji
  • Patent number: 9573370
    Abstract: A liquid ejection head includes a plurality of liquid ejection units, each including a plate-like piezoelectric element, a first substrate and a second substrate laid one on the other in this order, the units being laid one on the other. The first substrate defines a plurality of pressure chambers for storing liquid, each of the pressure chambers communicating with an ejection port for ejecting liquid. At least either the first substrate or the second substrate defines a first liquid chamber, the first liquid chamber being either one of a feed chamber for feeding liquid to the pressure chambers and a recovery chamber for recovering liquid from the pressure chambers. The second substrate defines a second liquid chamber, the second liquid chamber being the other one of the feed chamber and the recovery chamber.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Sasagawa, Toru Nakakubo
  • Patent number: 9573381
    Abstract: An embodiment of this invention implements both suppression of occurrence of a print failure, and suppression of wasteful ink consumption along with bubble exhaust. Bubble sucking is performed as follows in a printing apparatus including a printhead in which a plurality of orifices are provided for discharging ink, an ink tank for supplying ink to the printhead through an ink channel, and a suction unit configured to suck ink from the orifices. A bubble is injected to the ink channel by using, for example, a pump and hollow needle. After injecting the bubble to the ink channel, the suction unit is operated to suck the injected bubble from the orifices.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hidehiko Kanda, Monta Matsui
  • Patent number: 9573398
    Abstract: The present invention provides a mechanism that improves accuracy for positioning a head relative to a carriage, and easily performs positional adjustment for the head. A carriage unit includes a first carriage structure and a second carriage structure. The first carriage structure includes a first sliding face that can slide along a guide shaft, and a head can be mounted on the first carriage structure. The second carriage structure includes a second sliding face that can slide along the guide shaft, and can hold the first carriage structure to allow positional adjustment for the first carriage structure in a predetermined direction in which a position where the first sliding face contacts the guide shaft is to be shifted.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Sekino, Koichi Kudaki, Ryoma Arai
  • Patent number: 9573406
    Abstract: An information processing apparatus comprises a deciding unit which decides on a sequence for manufacturing a plurality of products using the type information of a plurality of products; and a unit which causes a print apparatus and a post-pressing apparatus to manufacture the plurality of products in accordance with the sequence decided on, wherein the deciding unit decides on the sequence such that products of the same type are manufactured consecutively by the print apparatus and the post-pressing apparatus, and furthermore, for each type of product, the deciding unit decides on the sequence using step information regarding steps for product manufacturing such that, among steps for manufacturing a plurality of parts that constitute each of the plurality of products of the same type that are consecutive in the print apparatus, steps for manufacturing the same type of part are consecutive.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mitsuo Oki, Kenichiro Uotani, Yuki Uchida
  • Patent number: 9573319
    Abstract: An imprinting method in which alignment control of a mold and a substrate is effected and a pattern formed on the mold is transferred onto a pattern forming layer provided on the substrate. The imprinting method includes a step in which the mold and the substrate are brought near to each other while effecting the alignment control, after the alignment control is started, to bring the mold and the pattern forming layer into contact with each other, and then, the pattern forming layer is cured, and a step in which the gap between the mold and the substrate is increased, after the pattern forming layer is cured. Further, the alignment control is stopped after the alignment control is started, and at least one of before and after the mold contacts the pattern forming layer.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shingo Okushima, Nobuhito Suehira, Junichi Seki, Kazuyuki Kasumi
  • Patent number: 9573779
    Abstract: When waiting for printing, a cam that rotates together with the rotation of a gear locks a knurl at position on the upstream side in the sheet conveyance direction, which prevents sheets from dropping down. Moreover, during printing, when the cam is rotated 180° from the locked position, the knurl is in a state capable of sliding toward the downstream side. As a result, with the force that returns the knurl to the upstream side being too small, it is possible to prevent feeding overlapping sheet due to the front end of a sheet further on the down side than a sheet being fed from dropping toward the downstream side further than the knurl.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kosuke Yamamoto
  • Patent number: 9574099
    Abstract: The present invention relates to an ink set enabling the recording of images that have excellent gloss clarity and abrasion resistance even when a plurality of inks are used in combination, and an ink jet recording method using the ink set.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minako Kawabe, Hiroshi Kakikawa, Satoshi Takebayashi
  • Patent number: 9575296
    Abstract: A zoom lens is provided which has a wide angle of view and is bright and in which the entire lens system is compact and which can achieve high optical characteristic over the entire zoom range.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomonori Kimura, Shinji Yamasaki
  • Patent number: 9575310
    Abstract: An optical system for an endoscope includes an objective lens, a relay lens arrangement, and a correction optical system disposed in an optical path on a proximal end side of the objective lens. The correction optical system corrects curvature of field caused by the relay lens arrangement. In the optical system for an endoscope, the correction optical system includes at least one concave mirror having an aspherical surface.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayuki Suzuki
  • Patent number: 9575432
    Abstract: Laser driver ICs each drive different light-emitting portions and supply a driving current to one or more light-emitting portions among light-emitting portions included in a semiconductor laser. An image forming apparatus controls the laser driver ICs such that the light-emitting portions, which are each driven by a different laser driver IC, emit light beams in sequence, and measures a time interval between two BD signals generated by a BD sensor due to the light beams being incident thereon. Furthermore, based on the measured value, the image forming apparatus controls relative timings according to which the light-emitting portions emit the light beams based on image data.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Katsuyuki Yamazaki
  • Patent number: 9574910
    Abstract: Provided is a position detecting apparatus, including: a scale including pattern arrays formed in different cycles in a movement direction; an obtaining unit configured to obtain signals in accordance with a the plurality of pattern arrays; a phase calculator configured to calculate a phase of signals; a synchronism calculator configured to calculate a relative positional relationship between the obtaining unit and the scale by performing synchronism calculation of the phases calculated by the phase calculator; a synchronization error calculator configured to calculate a synchronization error in the synchronism calculation; and a determining unit configured to determine whether or not the synchronism calculation is normal by comparing the synchronization error and a predetermined threshold value with each other.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takeshi Yonezawa
  • Patent number: 9574953
    Abstract: The present invention provides a magnetic force sensor that can precisely detect and correct variations in a magnetic field generated by a magnetic flux generating source. Therefore, a displacement magneto-electric transducer, which detects a change in the magnetic field caused by an external force, and a fixed magneto-electric transducer, where the change in the magnetic field caused by the external force does not occur, are provided to face end sides of magnetic poles of the magnetic flux generating source. The fixed magneto-electric transducer detects a variation of the magnetic field caused by, for example, changes with time and environmental variations such as a temperature rise in the interior of the sensor. On the basis of a detection amount thereof, an operational section performs a correction operation, so that a sensitivity coefficient or an offset of the displacement magneto-electric transducer is corrected.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shuuichi Sato
  • Patent number: 9574967
    Abstract: A wavefront measurement method includes the steps of causing object light to be incident on a Shack-Hartmann sensor, capturing a first spot image under image pickup conditions, calculating data of first spot positions that correspond to the first spot image, calculating second spot positions by simulating a second spot image on the basis of the image pickup condition and information of a travelling direction of diffracted light generated when the object light passes through the microlenses, and reducing detection errors of the spot positions by correcting the data of the first spot positions on the basis of data of the second spot positions including data of a detection error due to the diffracted light.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Maeda
  • Patent number: 9575456
    Abstract: An image forming apparatus includes: a power source portion; a fixing portion; and a controller. The controller sets a waveform of a current to be passed through each of first and second heat-generating-elements of the fixing portion in one control period so that, in a synchronous half wave in one control period, the current passes through one heat-generating-element from a halfway point of the half wave and the current passes through or does not pass through the other heat-generating-element throughout a half wave period. The controller sets a current supply starting timing of the current passing through the one heat-generating-element, at timing when a current passing toward the power source portion stops.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masatoshi Itoh
  • Patent number: 9575457
    Abstract: An image forming apparatus has an apparatus body having an image forming portion capable of forming an image based on an image information, an operation unit disposed as a separate body from the apparatus body and operating the apparatus body, and a cable connecting the apparatus body and the operation unit and capable of conducting power. The cable has a length set so that the operation unit does not contact an installation surface on which the apparatus body is supported, according to which a freedom of placement of the operation unit is improved compared to a case where the operation unit is connected via an arm.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Fujita, Nobuhiro Tani
  • Patent number: 9575461
    Abstract: Provided is a process cartridge by which the stability of an image having a high print percentage can be obtained even when high-density loading is performed. The process cartridge is a process cartridge in which a toner having a uniaxial collapse stress at the time of a maximum consolidation stress of 10.0 kPa of 2.0 kPa or more and 4.5 kPa or less, and a total energy measured after its compression of 70 mJ or more and 95 mJ or less is stored in a toner container in a state in which the container has a loading density of 0.70 g/cm3 or more.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Akiyama, Koji Nishikawa, Kosuke Fukudome, Shotaro Nomura, Daisuke Yoshiba, Shohei Tsuda, Katsuhisa Yamazaki
  • Patent number: 9575528
    Abstract: A system comprises a semiconductor integrated circuit including a data processing unit that operates in any of a plurality of states, and a selection unit that selects a state from the plurality of states in accordance with a voltage supplied from a power supply unit and makes the data processing unit operate in the selected state, and a power supply unit including a control unit that starts supplying a voltage to the semiconductor integrated circuit based on an initial voltage value setting at startup and makes a voltage to be supplied transit to a predetermined voltage based on information of voltage value in response to a supply voltage having reached the initial voltage value, wherein the selection unit switches the data processing unit to a predetermined state when a supplied voltage has reached the predetermined voltage value from the initial voltage value.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takeshi Aoyagi
  • Patent number: 9575546
    Abstract: Whether to enable a packet discarding mode is designated and, if an information processing apparatus operates in a power saving mode and the packet discarding mode is enabled, the information processing apparatus determines processing for a received packet based on a proxy response pattern, a WOL pattern, and a discard pattern, and, if the information processing apparatus operates in the power saving mode and the packet discarding mode is disabled, the information processing apparatus determines processing for the received packet based on the proxy response pattern and the WOL pattern without using the discard pattern.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Okazawa, Tomohiro Kimura
  • Patent number: 9575391
    Abstract: A zoom lens comprises, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a rear unit including at least one lens unit. The intervals between the adjacent lens units vary during zooming. The rear unit has a positive refractive power over the entire zoom range. The second lens unit includes at least three negative lenses, and at least two positive lenses. The materials of all the positive lenses included in the second lens unit are appropriately selected.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shigenobu Sugita
  • Patent number: 9575400
    Abstract: An image display apparatus projects a first image by using a light source constituted by a plurality of point light sources, performs lighting in a unit of lighting formed from at least one point light source of the plurality of point light sources, and controls, in the unit of lighting, lighting in an overlapped area between the first image and a second image projected from another image display apparatus so as to equalize luminances in the overlapped area and a non-overlapped area when the second image is a solid black frame.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Motohisa Ito
  • Patent number: 9575402
    Abstract: An illumination optical system includes a first compression system configured to compress a light flux on each of first and second sections, a second compression system configured to compress the light flux on the first section, a polarization converter arranged so that a section that contains a normal of the second polarization splitting surface and the optical axis becomes the second section, and configured to convert non-polarized light into linearly polarized light, a first lens array arranged in front of the polarization converter along an optical path, and a second lens array arranged between the first lens array and the polarization converter along the optical path. Both of the first lens array and the second lens array have no optical power on the second section.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuuki Maeda, Takashi Sudo, Hiroyuki Kodama, Yu Yamauchi
  • Patent number: 9575407
    Abstract: The imprint apparatus of the present invention includes a holding unit configured to hold a mold; a particle inspection unit configured to inspect whether or not particle is present on an imprint area, in which the resin pattern is formed, of the substrate; a dispenser configured to apply an uncured resin to the imprint area; a movable unit configured to move the imprint area with respect to the holding unit; and a controller. The movable unit is capable of moving the imprint area to each of an inspection position by means of the inspection unit, an application position by means of the dispenser, and a contacting position by means of the holding unit. Also, the controller causes the inspection unit to perform inspection of the imprint area in association with the movement of the imprint area by means of the movable unit.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Sato
  • Patent number: 9575413
    Abstract: An exposure apparatus sequentially performs exposure in each of a plurality of underlying shot regions formed on a substrate and includes a controller. The controller is configured to judge, for each of the plurality of shot regions, whether to perform one-shot exposure without dividing the shot region or divided exposure, based on information of respective shapes of the plurality of shot regions, determine a shape of each partial region in the shot region in which the divided exposure is to be performed, and control the exposure so as to perform the one-shot exposure or the divided exposure in each of the plurality of shot regions based on a result of the judgment and the determined shape of each partial region.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takuro Tsujikawa, Atsushi Kawahara, Issei Funayoshi, Shinichi Egashira
  • Patent number: 9575420
    Abstract: A lithography apparatus includes a cleaning unit configured to perform cleaning of a substrate holder, a detector configured to detect a foreign substance by observing a substrate held by the substrate holder, and a controller configured to control execution of a pattern forming operation on the substrate and a cleaning operation. The controller operates such that, if a foreign substance is detected out of a predetermined area including a position at which a foreign substance was previously detected after a predetermined number of executions of the cleaning operation, a next pattern forming operation is performed after executing the cleaning operation. Otherwise, a next pattern forming operation is performed without executing the cleaning operation.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryo Kasai
  • Patent number: 9575422
    Abstract: Provided are a method of producing an electrophotographic photosensitive member, particularly, a method of producing an electrophotographic photosensitive member and an organic device by which, in a method of forming a charge transporting layer, the stability of an application liquid for the layer after long-term storage is improved while the usage of an organic solvent in the application liquid is curtailed, and the layer having high uniformity is formed. The method is a method of producing an electrophotographic photosensitive member which includes a support and a charge transporting layer formed thereon, the method including: preparing a solution including: a first liquid whose solubility in water under 25° C. and 1 atmosphere is 1.0 mass % or less; a second liquid whose solubility in water under 25° C. and 1 atmosphere is 5.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Okuda, Keiko Yamagishi, Harunobu Ogaki, Yohei Miyauchi, Hiroki Uematsu, Kimihiro Yoshimura
  • Patent number: 9575424
    Abstract: A toner particle production method has an annealing step that is performed after the preparation of a resin solution by the dissolution or dispersion, in an organic solvent, of a binder resin having a polyester resin as its major component and a block polymer having a polyester segment and a vinyl polymer segment, and the preparation of a resin particle dispersion in which resin particles are dispersed by a dissolution suspension method, wherein, in this annealing step, the temperature of the obtained resin particle dispersion is held for at least 60 minutes in the temperature range from TgA-15 (° C.) to TmA (° C.), and under the conditions of a temperature variation range of not more than 20° C. and a temperature variation rate of not more than 0.35° C./minute.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiro Nakagawa, Masatake Tanaka, Naoya Isono, Tsutomu Shimano, Shintaro Noji, Yu Yoshida
  • Patent number: 9575425
    Abstract: A toner is provided including large particle-diameter external additives with sweep to the concaves of a toner particle suppressed, so that the large particle-diameter external additives function as spacer particles for a long period. The toner includes toner particles which contain a binder resin and magnetic material, and organic-inorganic composite fine particles having a structure including inorganic fine particles embedded in a vinyl resin particle. The presence state of the magnetic material on the toner particle surface satisfies specific conditions and the presence state of the organic-inorganic composite fine particles on the toner surface satisfies specific conditions.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Naka, Kazuo Terauchi, Motohide Shiozawa, Yojiro Hotta, Shohei Tsuda, Katsuhisa Yamazaki, Koji Nishikawa, Takayuki Itakura
  • Patent number: 9575426
    Abstract: It is an object of the present invention to provide a toner capable of being fixed at low energy and forming an image with high resistance to external forces, such as rubbing and scratching. The object is achieved by a toner including toner particles that contain a binder resin and a colorant, a sea-island structure including a sea portion composed of the crystalline resin C serving as a main component and island portions composed of the amorphous resin A serving as a main component is observed at the observation of a cross section of each of the toner particles.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Shimano, Shintaro Noji, Hitoshi Itabashi
  • Patent number: 9575429
    Abstract: An apparatus forms a patch for gray with toners of CMY for each density region of an image for image formation, acquires a chromaticity value of the patch for gray, determines whether a chroma value obtained from the chromaticity value of the patch for gray for each density region is equal to or greater than a threshold value, generates, for a first density region corresponding to a patch with respect to which a chroma value determined to be neither equal to nor greater than the threshold value is obtained, using the obtained chroma value, a correction value for decreasing the chroma value, and generates, for a second density region corresponding to a patch with respect to which a chroma value determined to be equal to or greater than the threshold value is obtained, a correction value by performing interpolation calculation using the correction value generated for the first density region.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shunsuke Iguchi
  • Patent number: 9575430
    Abstract: The optical scanning apparatus correctly measures a gap between the laser beams of a plurality of the laser beams even when the scanning speed is changed and when the variation is caused, rightly corrects the variation. Thus, the optical scanning apparatus inputs detection signal BD_IN to the edge detecting unit at timing at which the laser beam is detected. During the enable gating, the count value representing the distance between the head laser beam and the end laser beam is counted in the counting unit. A plurality of speed ratio parameters according to the degree of changes in the scanning speed is input in the selector. The selector selects any one of the speed ratio parameters and multiplies by the count value by the multiplier, it is controlled to obtain the same multiplication result whichever scanning speed may be selected.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhide Koga
  • Patent number: 9575431
    Abstract: Provided is an optical scanning apparatus which can achieve high resolution while reducing detection errors in the synchronous detection of a plurality of light fluxes by temperature fluctuations. An optical scanning apparatus according to this invention includes a light source having a plurality of light-emitting points, a deflection unit configured to deflect a plurality of light fluxes emitted by the plurality of light-emitting points, a scanning optical system configured to guide the plurality of light fluxes deflected by the deflection unit onto a scanned surface, and a synchronous detection unit configured to detect light fluxes from at least two light-emitting points of the plurality of light-emitting points. The synchronous detection unit includes a plurality of imaging elements. The first imaging element, of the plurality of imaging elements, which exhibits the smallest change in refractive index with respect to temperatures has the largest refractive power in a main scanning section.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masayasu Teramura
  • Patent number: 9572489
    Abstract: A fundus camera, which does not take time for adjustment of illumination light amount and focusing even if brightness of the fundus is different for each eye to be inspected, includes an illumination unit for illuminating the fundus of the eye to be inspected, a photometry unit for performing photometry of reflection light from the fundus illuminated by the illumination unit, an illumination light amount control unit for controlling a light amount of the illumination unit, a focus detection area determining unit for determining a focus detection area with respect to a fundus image taken by an image pickup unit, and a focus detection unit for detecting a focus position in the area determined by the focus detection area determining unit. The photometry unit calculates a photometry value of the focus detection area, and the illumination light amount is controlled based on the photometry value.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiraku Ogura
  • Patent number: 9575439
    Abstract: Provided a transfer member for electrophotography of a multilayer structure including a surface layer having a surface for carrying toner is provided. The surface layer contains a graft type copolymer comprising a polymer having a structure represented by formula (1) as a main chain, and a group containing a structure represented by formula (2) and a group containing a structure represented by formula (3) each bonded to the main chain as a side chain.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yasutomo Tsuji
  • Patent number: 9575433
    Abstract: An image forming apparatus includes a developing apparatus having a container for storing a developer, a developer carrier in which a surface that carries the developer is configured so that a plurality of dielectric portions is interspersed on a surface formed of a conductor portion, and a regulating member that regulates a layer thickness of the developer that is carried on the developer carrier. In addition, a voltage applying unit applies voltages to the developer carrier and the regulating member.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yosuke Kishi
  • Patent number: 9575434
    Abstract: Provided is a remanufacturing method of a developer accommodating unit including a flexible container provided with an opening and configured to accommodate developer, and a frame member configured to accommodate the flexible container. The remanufacturing method includes refilling the developer into the frame member.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noritomo Yamaguchi, Yuichi Fukui, Satoshi Nishiya, Jun Miura
  • Patent number: 9575437
    Abstract: An image forming apparatus includes a toner image carrying drum; and an image transfer unit including an endless belt, first and second belt stretching rollers, and an adjusting unit for adjusting belt movement in a widthwise direction by inclining the first roller relative to the second roller. The adjusting unit includes a contacting member provided between the first roller and the drum and contacting with an inner surface of the belt. The contacting member contacts the inner surface of the belt at a position in a drum side across a common internal tangent between the drum and such a portion of a surface of the first roller as is moved closest to the drum by the adjusting unit, the common internal tangent being the one contacting a portion of the drum adjacent to a drum-belt contact position and contacting a portion of the first roller adjacent to a first-roller-belt contact position.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhiko Oba, Takeo Kawanami
  • Patent number: 9576201
    Abstract: The present disclosure relates to a method and apparatus for classifying pixels in an input image and image processing system. The apparatus includes a first confidence determination unit configured for determining a first confidence of each of the pixels in the input image belonging to each of a plurality of predetermined classes; a detection unit configured for acquiring, by using a detector for detecting a particular class among the plurality of predetermined classes, detection results used to indicate pixels which belong to the particular class; an updating unit configured for updating the first confidences according to the detection results; and a class determination unit configured for determining the class to which each of the pixels in the input image belongs among the plurality of predetermined classes, according to the updated first confidences.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Bo Wu, Yong Jiang, You Lv, Xingwei Xu
  • Patent number: 9575442
    Abstract: An image fixing apparatus includes: a heater for heating and fixing a toner image formed on a recording material; a thermosensitive element for sensing heat from the heater; and a tension spring for urging the thermosensitive element toward the heater.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hideki Ohta, Jiro Moriya