Patents by Inventor Ryo Yamasaki
Ryo Yamasaki 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: 10182199Abstract: According to the present invention, an imaging device and a reproducing device that allow for high quality reproduction of images generated by using two image signals having different lengths of accumulation periods output form a single imaging element are provided. A solid state imaging device of the invention includes a pixel array including a pixel having first and second photoelectric conversion units; a scanning unit that drives the pixel such that an accumulation period of an intermediate time of the first photoelectric conversion unit matches an intermediate time of an accumulation period of the second photoelectric conversion unit; a readout unit that reads out a first image signal from the first photoelectric conversion unit and reads out a second image signal from the second photoelectric conversion unit; and a generating unit that generates images by using the first and second image signals whose accumulation periods have the matched intermediate time.Type: GrantFiled: February 17, 2017Date of Patent: January 15, 2019Assignee: Canon Kabushiki KaishaInventors: Fumihiro Kajimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Masafumi Kimura, Makoto Oikawa, Go Naito
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Publication number: 20180158487Abstract: An imaging device includes an imaging element that acquires a first image based on signal charge generated during a first accumulation time, and a second image based on signal charge generated during a second accumulation time relatively longer than the first accumulation time and synchronized with the first image during a synchronization period including the first accumulation time, and a moving image file generating unit that generates a moving image file including a first moving image based on the first image, a second moving image based on the second image, and synchronization information for synchronizing the first moving image and the second moving image frame by frame.Type: ApplicationFiled: December 18, 2017Publication date: June 7, 2018Inventors: Masafumi Kimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Makoto Oikawa, Fumihiro Kajimura, Go Naito
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Publication number: 20180139397Abstract: An image pickup apparatus, including a controller, the controller generating a first image by a first signal which is based on charge obtained by a first charge accumulation performed within a first time period corresponding to one frame of an image group, the controller generating a second image using at least a second signal which is based on the charge obtained by the plurality of times of second charge accumulations performed within a first time period, and the controller, in a first case where a time of the first charge accumulation is less than a predetermined time, generating a second image by the second signal without using the first signal, and in a second case where the time of the first charge accumulation is the predetermined time or more, generating the second image using the first signal and the second signal.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Inventor: Ryo Yamasaki
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Publication number: 20180074051Abstract: Provided are a method for diagnosing chronic inflammatory demyelinating polyneuropathy (CIDP), in particular, a diagnostic method for specifically diagnosing a group having a specific pathophysiology among CIDPs, and a kit and a biomarker for use in such a diagnosis. The diagnostic method for diagnosing CIDP of the present invention includes a step of measuring an anti-neurofascin 155 antibody contained in a sample.Type: ApplicationFiled: January 20, 2016Publication date: March 15, 2018Applicant: Kyushu University, National University CorporationInventors: Junichi KIRA, Nobutoshi KAWAMURA, Ryo YAMASAKI, Dai MATSUSE, Hidenori OGATA
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Patent number: 9881648Abstract: An imaging device includes an imaging element that acquires a first image based on signal charge generated during a first accumulation time, and a second image based on signal charge generated during a second accumulation time relatively longer than the first accumulation time and synchronized with the first image during a synchronization period including the first accumulation time, and a moving image file generating unit that generates a moving image file including a first moving image based on the first image, a second moving image based on the second image, and synchronization information for synchronizing the first moving image and the second moving image frame by frame.Type: GrantFiled: September 7, 2016Date of Patent: January 30, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Masafumi Kimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Makoto Oikawa, Fumihiro Kajimura, Go Naito
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Patent number: 9812994Abstract: An ultrasonic motor includes a vibrator configured to generate a vibration, a relatively movable member configured to be movable by the vibrator, wherein the relatively movable member is movable relatively according to the vibration of the vibrator, a holding unit configured to hold the vibrator, wherein the holding unit includes a first holding member configured to hold the vibrator and a second holding member; and a damping member provided between the vibrator and the second holding member and configured to reduce a vibration transmitted to the second holding member, a pressure unit configured to press the vibrator against the relatively movable member, wherein the second holding member is configured to press the vibrator against the relatively movable member, and wherein the first holding member is made of a material having a higher damping capability against the vibrator than a material of the second holding member.Type: GrantFiled: June 23, 2014Date of Patent: November 7, 2017Assignee: Canon Kabushiki KaishaInventors: Ryo Yamasaki, Makoto Oikawa
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Patent number: 9799545Abstract: An electrostatic chuck and a manufacturing method are disclosed in which drawbacks of using an adhesive are not existent and a freedom degree of design is high. The electrostatic chuck includes a substrate part constituting a main chuck body, a first insulating layer of a spray coating formed to the surface of the substrate part, a heater part of an electric conductor formed by applying a conductive paste to the surface of the first insulating layer, a second insulating layer of a spray coating formed to the surface of the first insulating layer so as to cover the heater part, an electrode part formed by thermal spraying to the surface of the second insulating layer and a dielectric layer of a spray coating formed to the surface of the second layer so as to cover the electrode part and lowers a volume resistivity without using an adhesive.Type: GrantFiled: March 22, 2013Date of Patent: October 24, 2017Assignee: TOCALO CO., LTD.Inventors: Ryo Yamasaki, Mitsuharu Inaba, Kensuke Taguchi
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Publication number: 20170272007Abstract: An ultrasonic motor includes a vibrator configured to generate a vibration, a relatively movable member configured to be movable by the vibrator, wherein the relatively movable member is movable relatively according to the vibration of the vibrator, a holding unit configured to hold the vibrator, wherein the holding unit includes a first holding member configured to hold the vibrator and a second holding member; and a damping member provided between the vibrator and the second holding member and configured to reduce a vibration transmitted to the second holding member, a pressure unit configured to press the vibrator against the relatively movable member, wherein the second holding member is configured to press the vibrator against the relatively movable member, and wherein the first holding member is made of a material having a higher damping capability against the vibrator than a material of the second holding member.Type: ApplicationFiled: June 6, 2017Publication date: September 21, 2017Inventors: Ryo Yamasaki, Makoto Oikawa
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Publication number: 20170244912Abstract: According to the present invention, an imaging device and a reproducing device that allow for high quality reproduction of images generated by using two image signals having different lengths of accumulation periods output form a single imaging element are provided. A solid state imaging device of the invention includes a pixel array including a pixel having first and second photoelectric conversion units; a scanning unit that drives the pixel such that an accumulation period of an intermediate time of the first photoelectric conversion unit matches an intermediate time of an accumulation period of the second photoelectric conversion unit; a readout unit that reads out a first image signal from the first photoelectric conversion unit and reads out a second image signal from the second photoelectric conversion unit; and a generating unit that generates images by using the first and second image signals whose accumulation periods have the matched intermediate time.Type: ApplicationFiled: February 17, 2017Publication date: August 24, 2017Inventors: Fumihiro Kajimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Masafumi Kimura, Makoto Oikawa, Go Naito
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Publication number: 20170237927Abstract: An imaging device includes a plurality of pixels, each of which including a first pixel element including a first photoelectric conversion unit, and a second pixel element including a second photoelectric conversion unit lower in sensitivity than the first photoelectric conversion unit, a readout circuit configured to read out a first image signal based on signal charge generated in the first pixel element during a first accumulation period, and a second image signal based on signal charge generated in the second pixel element during a second accumulation period longer than the first accumulation period, the second image signal being synchronized with the first image signal, and a control unit configured to control the readout circuit so that a first readout period for reading out the first image signal is performed during the second accumulation period.Type: ApplicationFiled: February 14, 2017Publication date: August 17, 2017Inventors: Fumihiro Kajimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Masafumi Kimura, Makoto Oikawa, Go Naito
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Publication number: 20170236552Abstract: An imaging device includes an imaging element that acquires a first image based on signal charge generated during a first accumulation time, and a second image based on signal charge generated during a second accumulation time relatively longer than the first accumulation time and synchronized with the first image during a synchronization period including the first accumulation time, and a moving image file generating unit that generates a moving image file including a first moving image based on the first image, a second moving image based on the second image, and synchronization information for synchronizing the first moving image and the second moving image frame by frame.Type: ApplicationFiled: September 7, 2016Publication date: August 17, 2017Inventors: Masafumi Kimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Makoto Oikawa, Fumihiro Kajimura, Go Naito
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Publication number: 20170207727Abstract: The actuator includes a vibration plate including a fixing portion for fixing the vibration plate to a holding member, and a connection portion for connecting a center portion and the fixing portion, and is provided between a surface and a friction-sliding surface in a direction in which the vibration plate is pressed against the rotor by a pressurizing force produced by a pressure member. When finishing a surface on which a piezoelectric device is to be fixed to the vibration plate to a uniform surface by polishing, a decrease in the performance of the ultrasonic motor due to deformation of the vibration plate that is caused by warping of support portions that extend from both ends thereof or by burrs or the like can be prevented, and the time required to polish the vibration plate can be reduced.Type: ApplicationFiled: April 4, 2017Publication date: July 20, 2017Inventors: Ryo Yamasaki, Makoto Oikawa
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Patent number: 9705427Abstract: A driving motor includes a member having a contact surface, a vibrator including a contact part that is brought into contact with the contact surface, a pressing unit, and a contact member located between the pressing unit and the vibrator. The vibrator and the member move relatively by a vibration of the vibrator. The pressing unit comprises an elastic member so as to apply a pressing force on the contact part against the member including the contact surface. The contact member has a curved surface portion formed as an arc shape curved toward the pressing unit, and comes into contact with the pressing unit at the curved surface portion. The curved surface portion is formed so as to locate a position of a center of a circle including the arc shape of the curved surface portion not closer to the contact member than to the contact part.Type: GrantFiled: September 8, 2015Date of Patent: July 11, 2017Assignee: Canon Kabushiki KaishaInventors: Makoto Oikawa, Ryo Yamasaki
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Patent number: 9705426Abstract: An ultrasonic motor includes a vibrator including a contact surface that is brought into contact with a member to be driven, and a piezoelectric element fixed thereto, the vibrator configured to drive the member to be driven by an ultrasonic vibration excited by the piezoelectric element; a fixing unit; and a pressing member supported by a restraining part of the fixing unit so as not to move in a direction parallel to the contact surface, the pressing member configured to apply a bias force to the vibrator so as to press the contact surface against the member to be driven.Type: GrantFiled: June 12, 2015Date of Patent: July 11, 2017Assignee: Canon Kabushiki KaishaInventors: Ryo Yamasaki, Makoto Oikawa
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Patent number: 9641104Abstract: The actuator includes a vibration plate including a fixing portion for fixing the vibration plate to a holding member, and a connection portion for connecting a center portion and the fixing portion, and is provided between a surface and a friction-sliding surface in a direction in which the vibration plate is pressed against the rotor by a pressurizing force produced by a pressure member. When finishing a surface on which a piezoelectric device is to be fixed to the vibration plate to a uniform surface by polishing, a decrease in the performance of the ultrasonic motor due to deformation of the vibration plate that is caused by warping of support portions that extend from both ends thereof or by burrs or the like can be prevented, and the time required to polish the vibration plate can be reduced.Type: GrantFiled: August 21, 2014Date of Patent: May 2, 2017Assignee: Canon Kabushiki KaishaInventors: Ryo Yamasaki, Makoto Oikawa
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Publication number: 20170104910Abstract: Provided is an imaging device including an imaging element having a first photoelectric conversion unit and a second photoelectric conversion unit, in which a light-receiving efficiency of the second photoelectric conversion unit is lower than a light-receiving efficiency of the first photoelectric conversion unit; an optics that guides a light flux from an object to the imaging element; and a control unit that selects a combination of the first photoelectric conversion unit and the second photoelectric conversion unit used for a motion image capturing and a static image capturing in accordance with a brightness of the object.Type: ApplicationFiled: October 3, 2016Publication date: April 13, 2017Inventors: Masafumi Kimura, Koichi Washisu, Yasuo Suda, Akihiko Nagano, Fumihiro Kajimura, Go Naito, Ryo Yamasaki, Makoto Oikawa
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Patent number: 9560258Abstract: An image sensing apparatus including: an image sensor including a plurality of focus detection pixel pairs that perform photoelectric conversion on each pair of light beams that have passed through different regions of a photographing lens and output an image signal pair; a flash memory that stores shift information on relative shift between an optical axis of the photographing lens and a central axis of the focus detection pixel pairs; a correction unit that corrects a signal level of the image signal pair based on the shift information and exit pupil information of the photographing lens so as to compensate for an unbalanced amount of light that enters each of the focus detection pixel pairs; and a focus detection unit that detects a focus of the photographing lens using the image signal pair corrected by the correction unit.Type: GrantFiled: May 16, 2014Date of Patent: January 31, 2017Assignee: Canon Kabushiki KaishaInventor: Ryo Yamasaki
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Patent number: 9537429Abstract: Provided is an ultrasonic motor, comprising: a vibrator including a piezoelectric element and a contact surface to be brought into contact with a member to be driven, the vibrator driving the member to be driven by an ultrasonic vibration excited by the piezoelectric element; a holding part configured to hold the vibrator; a pressurization unit configured to apply a bias force for biasing the holding part toward the member to be driven so as to impress the contact surface against the member to be driven; and a fixing unit configured to support the pressurization unit, in which the holding part holds the vibrator on both sides of the contact surface in a driving direction of the member to be driven.Type: GrantFiled: August 3, 2015Date of Patent: January 3, 2017Assignee: Canon Kabushiki KaishaInventors: Makoto Oikawa, Ryo Yamasaki
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Publication number: 20160352256Abstract: A vibration wave motor includes: a vibrator including a vibration plate and a piezoelectric element; a friction member frictionally contacting the vibrator; a pressing member generating a pressing force to bring the vibrator in frictional contact with the friction member; and a pressing force transmitting member between the vibrator and the pressing member to transmit the pressing force to the vibrator. The vibrator and the friction member move in a relative movement direction by an elliptical vibration, and the pressing force transmitting member includes: an engagement portion formed near a contact portion with the pressing member and engaged with the pressing member; first restricting portion restricting movement in the relative movement direction; and a second restricting portion. restricting movement in a direction perpendicular to a pressing direction by the pressing member and the direction. The pressing force transmitting member is rotatably held with respect to the pressing member.Type: ApplicationFiled: May 19, 2016Publication date: December 1, 2016Inventor: Ryo Yamasaki
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Patent number: 9490281Abstract: An image sensor comprising a plurality of image sensing pixel groups is provided. Each of the image sensing pixel groups has a plurality of first pixels each having photoelectric conversion portions arrayed in first and second directions for first and second numbers of divisions, respectively, and a plurality of second pixels each having photoelectric conversion portions arrayed in the first and second directions for third and fourth numbers of divisions, respectively. The photoelectric conversion portions comprising the first pixel and the second pixel have a function of photoelectrically converting a plurality of images formed by divided light fluxes of a light flux from an imaging optical system and outputting a focus detection signal for phase difference detection. The first and third numbers of division are coprime natural numbers, and the second and fourth numbers of divisions are coprime natural numbers.Type: GrantFiled: November 13, 2014Date of Patent: November 8, 2016Assignee: Canon Kabushiki KaishaInventors: Koichi Fukuda, Ryo Yamasaki, Makoto Oikawa, Ichiro Onuki, Hideaki Yamamoto, Akihiro Nishio