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: 10651214Abstract: An imaging apparatus includes an imaging unit configured to acquire a first image and a second image which is generated by performing accumulation of signal charges a plurality of times in one image capturing period, and a control unit configured to control accumulation of signal charges which is performed by the imaging unit. The control unit determines a number of times of accumulation of signal charges for generating the second image according to an accumulation time of signal charges for generating the first image.Type: GrantFiled: August 9, 2018Date of Patent: May 12, 2020Assignee: Canon Kabushiki KaishaInventor: Ryo Yamasaki
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Publication number: 20190393807Abstract: Provided is a vibration wave motor including: a vibrator; a friction member having a sliding surface; a guide member; a flexible substrate; and a fixing member configured to fix the friction member, the guide member, and the flexible substrate, wherein the vibrator and the friction member move relative to each other in a second direction, wherein the fixing member includes a substrate-fixing portion configured to fix the flexible substrate, wherein the flexible substrate includes: a joint portion; a first extending portion extending along the second direction; a bent portion configured to reverse and turn back the first extending portion; and a fixed portion to be fixed to the substrate-fixing portion, and wherein the flexible substrate is fixed on a surface of the substrate-fixing portion provided in a direction opposite to a direction in which the vibrator is brought into pressure-contact with the friction member.Type: ApplicationFiled: June 13, 2019Publication date: December 26, 2019Inventors: Makoto Oikawa, Ryo Yamasaki, Kazuharu Osawa, Shunsuke Ninomiya, Ryo Abe, Kenta Takai
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Patent number: 10509033Abstract: 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: GrantFiled: January 20, 2016Date of Patent: December 17, 2019Assignee: Kyushu University, National University CorporationInventors: Junichi Kira, Nobutoshi Kawamura, Ryo Yamasaki, Dai Matsuse, Hidenori Ogata
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Publication number: 20190363647Abstract: Provided is a vibration wave motor, including: a vibrator including a piezoelectric element and a vibrating plate; a friction member, which includes a friction-contact surface to be brought into contact with the vibrator, and is configured to perform relative movement with respect to the vibrator by vibration generated by the vibrator; and a guide mechanism, which includes a first guide member, a second guide member, and a rolling member arranged between the first guide member and the second guide member, and is configured to guide the relative movement, wherein the first guide member includes a groove portion formed of a first surface and a second surface to be brought into contact with the rolling member, and wherein the first surface is longer than the second surface in a direction of the relative movement.Type: ApplicationFiled: May 21, 2019Publication date: November 28, 2019Inventors: Kenta Takai, Ryo Yamasaki, Makoto Oikawa, Kazuharu Osawa, Shunsuke Ninomiya, Ryo Abe
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Publication number: 20190348928Abstract: A driving device includes a vibrator; a friction member; a first guide portion that guides the vibrator or the friction member in a first direction when the vibrator vibrates so that the vibrator and the friction member move relative to each other, the first guide portion enabling rotation of the vibrator and the friction member around an axis in the first direction; a moving member that moves when the vibrator and the friction member move relative to each other, the moving member being connected to the member to be driven; and a second guide portion that guides the member to be driven in a second direction when the moving member moves. The moving member is connected to the member to be driven such that the moving member is rotatable and movable in a direction orthogonal to the first direction with respect to the member to be driven.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Inventors: Yasufumi Yamamoto, Ryo Yamasaki, Shunsuke Ninomiya, Mai Nakabayashi
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Publication number: 20190341863Abstract: Provided is a vibration wave motor including: a first holding member; a second holding member; a first regulating region; and a second regulating region, wherein a position of a first contact region of the first holding member, which comes into contact with the first regulating region, is different from a position of a second contact region of the second holding member, which comes into contact with the second regulating region, and wherein a position of the first regulating region is different from a position of the second regulating region in the relative movement direction so that, in the relative movement direction, a difference between a distance from the first contact region to the first regulating region and a distance from the second contact region to the second regulating region is smaller than a difference between the position of the first contact region and the position of the second contact region.Type: ApplicationFiled: April 25, 2019Publication date: November 7, 2019Inventors: Shunsuke Ninomiya, Ryo Yamasaki, Makoto Oikawa, Kazuharu Osawa, Ryo Abe, Kenta Takai
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Patent number: 10424343Abstract: 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: December 18, 2017Date of Patent: September 24, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Masafumi Kimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Makoto Oikawa, Fumihiro Kajimura, Go Naito
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Publication number: 20190267914Abstract: Provided is a vibration wave motor including: a vibrator; a friction member that comes into frictional contact with the vibrator; a press member that pressurizes the vibrator and the friction member into frictional contact with each other; a first guide member and a second guide member that guide the vibrator and the friction member so as to allow relative movement of the vibrator and the friction member; a hold member that holds the friction member and the first guide member; and a fixing member. The friction member and the first guide member are fixed to the hold member with the fixing member.Type: ApplicationFiled: February 20, 2019Publication date: August 29, 2019Inventors: Ryo Abe, Ryo Yamasaki, Makoto Oikawa, Kazuharu Osawa, Shunsuke Ninomiya, Kenta Takai
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Publication number: 20190253001Abstract: Provided is a vibration wave motor, including: a vibrator; a friction member, which is in friction contact with the vibrator; a pressurizing unit, which is configured to pressurize the vibrator against the friction member; and a guiding unit, which is configured to guide relative movement between the vibrator and the friction member, wherein the relative movement between the vibrator and the friction member is caused by vibration generated by the vibrator, and wherein the guiding unit holds the friction member and has fixing portions, and the fixing portions are formed in the guiding unit in vicinities of both ends of the guiding unit sandwiching the friction member.Type: ApplicationFiled: February 13, 2019Publication date: August 15, 2019Inventors: Ryo Yamasaki, Makoto Oikawa, Kazuharu Osawa, Shunsuke Ninomiya, Ryo Abe, Kenta Takai
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Publication number: 20190245460Abstract: A vibration wave motor including: a vibrator; a friction member; and a pressurizing member configured to press the vibrator and the friction member into contact with each other. The vibrator and the friction member are relatively moved in a direction orthogonal to the pressurizing direction of the pressurizing member by vibrations generated on the vibrator, the vibrator and the friction member are configured so as to move in parallel with the pressurizing direction with respect to a fixed member, and the vibration wave motor further includes at least one first restricting portion that restricts a movable amount of the friction member in the pressurizing direction and at least one second restricting portion that restricts a movable amount of the vibrator in the pressurizing direction, such that the movable amount of the friction member is smaller than the movable amount of the vibrator in the pressurizing direction.Type: ApplicationFiled: February 6, 2019Publication date: August 8, 2019Inventors: Ryo Yamasaki, Yasufumi Yamamoto, Shunsuke Ninomiya, Mai Nakabayashi
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Publication number: 20190181777Abstract: A vibration wave motor including: a vibrator; a first holding member configured to hold the vibrator; a second holding member; an elastic coupling member configured to couple the first holding member and the second holding member to each other; a friction member; and a pressurizing unit, wherein the vibrator and the friction member relatively move due to vibration of the vibrator, wherein the elastic coupling member includes a first coupling portion and a second coupling portion, and wherein one of the first coupling portion and the second coupling portion is arranged on a straight line that is parallel to a direction of the relative movement and passes through a pressurizing gravity center and another of the first coupling portion and the second coupling portion is arranged on a straight line that is orthogonal to the direction of the relative movement and passes through the pressurizing gravity center.Type: ApplicationFiled: December 7, 2018Publication date: June 13, 2019Inventors: Mai Nakabayashi, Ryo Yamasaki, Yasufumi Yamamoto, Shunsuke Ninomiya
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Patent number: 10313600Abstract: 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: GrantFiled: October 3, 2016Date of Patent: June 4, 2019Assignee: Canon Kabushiki KaishaInventors: Masafumi Kimura, Koichi Washisu, Yasuo Suda, Akihiko Nagano, Fumihiro Kajimura, Go Naito, Ryo Yamasaki, Makoto Oikawa
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Publication number: 20190165697Abstract: A vibration type motor includes first and second vibrators, a friction member configured to contact the first and second vibrators, a pressure member configured to press the first and second vibrators against the friction member, and first and second guide members configured to guide a relative movement between the first and second vibrators and the friction member. The first and second vibrators are spaced in a direction different from a relative movement direction between the first and second vibrators and the friction member. The first and the second guide member are provided between the first vibrator and the second vibrator in a direction different from the relative movement direction. A pressure center of a pressure applied to the first vibrator and the second vibrator by the pressure member is located between the first guide member and the second guide member.Type: ApplicationFiled: November 21, 2018Publication date: May 30, 2019Inventors: Shunsuke Ninomiya, Ryo Yamasaki, Yasufumi Yamamoto, Mai Nakabayashi
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Patent number: 10306160Abstract: 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: GrantFiled: November 9, 2017Date of Patent: May 28, 2019Assignee: Canon Kabushiki KaishaInventor: Ryo Yamasaki
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Patent number: 10291155Abstract: A thin vibration wave motor is provided by thinning a friction member of the vibration wave motor. In a vibration wave motor including: a vibrator including a piezoelectric element and a vibration plate; and a friction member including a frictional contact surface to be brought into contact with the vibrator, the vibrator and the friction member being moved relative to each other using vibration generated in the vibrator, the vibration plate includes a flat plate portion to which the piezoelectric element is fixed and projection portions to be brought into contact with the friction member, and the friction member includes at least one reinforcing portion that increases a strength of the friction member along a direction of the relative movement, in a region between the flat plate portion and the friction member.Type: GrantFiled: April 8, 2016Date of Patent: May 14, 2019Assignee: CANON KABUSHIKI KAISHAInventor: Ryo Yamasaki
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Patent number: 10283538Abstract: 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: GrantFiled: February 14, 2017Date of Patent: May 7, 2019Assignee: CANON KABSHIKI KAISHAInventors: Fumihiro Kajimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Masafumi Kimura, Makoto Oikawa, Go Naito
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Publication number: 20190082127Abstract: 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: November 8, 2018Publication date: March 14, 2019Inventors: Fumihiro Kajimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Masafumi Kimura, Makoto Oikawa, Go Naito
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Publication number: 20190067348Abstract: An imaging apparatus includes an imaging unit configured to acquire a first image and a second image which is generated by performing accumulation of signal charges a plurality of times in one image capturing period, and a control unit configured to control accumulation of signal charges which is performed by the imaging unit. The control unit determines a number of times of accumulation of signal charges for generating the second image according to an accumulation time of signal charges for generating the first image.Type: ApplicationFiled: August 9, 2018Publication date: February 28, 2019Inventor: Ryo Yamasaki
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Patent number: 10199960Abstract: 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; a 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: GrantFiled: May 19, 2016Date of Patent: February 5, 2019Assignee: Canon Kabushiki KaishaInventor: Ryo Yamasaki
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Patent number: 10193473Abstract: 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: April 4, 2017Date of Patent: January 29, 2019Assignee: Canon Kabushiki KaishaInventors: Ryo Yamasaki, Makoto Oikawa