Patents by Inventor Rintaro NISHIHARA
Rintaro NISHIHARA 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: 11617494Abstract: An endoscope system includes an endoscope having a position/angle sensor and an amplifying circuit, a memory configured to store output error sensitivity data and a first wiring resistance value, and a processor including a signal processing circuit configured to process an output signal from the amplifying circuit. The signal processing circuit corrects an error of the output signal based on a value obtained by multiplying a difference between the first wiring resistance value and a processor wiring resistance value by the output error sensitivity data.Type: GrantFiled: February 3, 2020Date of Patent: April 4, 2023Assignee: OLYMPUS CORPORATIONInventors: Masanori Shimoyama, Rintaro Nishihara, Sho Nakamura
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Patent number: 11573414Abstract: An endoscope system includes an endoscope in which an actuator moves a movable lens and a position sensor outputs a position detection signal, and a processor including a driver circuit configured to drive the actuator and a driving control circuit configured to subject a deviation of the position detection signal to first correction based on individual processor correction data stored in a processor memory and controls the driver circuit based on a target position and the position detection signal subjected to the first correction.Type: GrantFiled: November 22, 2019Date of Patent: February 7, 2023Assignee: OLYMPUS CORPORATIONInventors: Rintaro Nishihara, Sho Nakamura
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Publication number: 20200268233Abstract: An endoscope system includes an endoscope having a position/angle sensor and an amplifying circuit, a memory configured to store output error sensitivity data and a first wiring resistance value, and a processor including a signal processing circuit configured to process an output signal from the amplifying circuit. The signal processing circuit corrects an error of the output signal based on a value obtained by multiplying a difference between the first wiring resistance value and a processor wiring resistance value by the output error sensitivity data.Type: ApplicationFiled: February 3, 2020Publication date: August 27, 2020Applicant: OLYMPUS CORPORATIONInventors: Masanori SHIMOYAMA, Rintaro NISHIHARA, Sho NAKAMURA
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Publication number: 20200174245Abstract: An endoscope system includes an endoscope in which an actuator moves a movable lens and a position sensor outputs a position detection signal, and a processor including a driver circuit configured to drive the actuator and a driving control circuit configured to subject a deviation of the position detection signal to first correction based on individual processor correction data stored in a processor memory and controls the driver circuit based on a target position and the position detection signal subjected to the first correction.Type: ApplicationFiled: November 22, 2019Publication date: June 4, 2020Applicant: OLYMPUS CORPORATIONInventors: Rintaro NISHIHARA, Sho NAKAMURA
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Patent number: 10379373Abstract: A position detection apparatus is configured to detect a position of a movable portion relative to a fixed portion using a voice coil motor (VCM) driving portion. The position detection apparatus includes a position detection element arranged on one of the movable portion and the fixed portion, and a first position detection magnet and a second position detection magnet arranged on another of the movable portion and the fixed portion. The first position detection magnet and the second position detection magnet are aligned so that different magnetic poles face a surface of the position detection element. The first position detection magnet and the second position detection magnet are arranged in an order in a moving direction of the movable portion such that magnitudes of densities of magnetic fluxes reaching the surface of the position detection element from the first position detection magnet and the second position detection magnet are different.Type: GrantFiled: November 5, 2018Date of Patent: August 13, 2019Assignee: OLYMPUS CORPORATIONInventor: Rintaro Nishihara
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Publication number: 20190072779Abstract: A position detection apparatus is configured to detect a position of a movable portion relative to a fixed portion using a voice coil motor (VCM) driving portion. The position detection apparatus includes a position detection element arranged on one of the movable portion and the fixed portion, and a first position detection magnet and a second position detection magnet arranged on another of the movable portion and the fixed portion. The first position detection magnet and the second position detection magnet are aligned so that different magnetic poles face a surface of the position detection element. The first position detection magnet and the second position detection magnet are arranged in an order in a moving direction of the movable portion such that magnitudes of densities of magnetic fluxes reaching the surface of the position detection element from the first position detection magnet and the second position detection magnet are different.Type: ApplicationFiled: November 5, 2018Publication date: March 7, 2019Applicant: OLYMPUS CORPORATIONInventor: Rintaro NISHIHARA
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Patent number: 10165184Abstract: An image stabilization device includes a movable portion including an image pickup lens and a VCM driving portion configured to drive the movable portion relative to a fixed portion, the image stabilization device including: a position detection element arranged on the movable portion; and paired position detection magnets arranged at positions facing the position detection element and arranged on the fixed portion; wherein the paired position detection magnets are a first magnet and a second magnet arranged so that different magnetic poles face a surface of the position detection element; the first magnet and the second magnet are arranged in order along a direction away from an optical axis of a light flux incident on the image pickup lens; and magnitudes of densities of magnetic fluxes reaching the surface of the position detection element from the first magnet and the second magnet, respectively, are mutually different.Type: GrantFiled: May 30, 2017Date of Patent: December 25, 2018Assignee: OLYMPUS CORPORATIONInventor: Rintaro Nishihara
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Publication number: 20180020163Abstract: An image stabilization device includes a movable portion including an image pickup lens and a VCM driving portion configured to drive the movable portion relative to a fixed portion, the image stabilization device including: a position detection element arranged on the movable portion; and paired position detection magnets arranged at positions facing the position detection element and arranged on the fixed portion; wherein the paired position detection magnets are a first magnet and a second magnet arranged so that different magnetic poles face a surface of the position detection element; the first magnet and the second magnet are arranged in order along a direction away from an optical axis of a light flux incident on the image pickup lens; and magnitudes of densities of magnetic fluxes reaching the surface of the position detection element from the first magnet and the second magnet, respectively, are mutually different.Type: ApplicationFiled: May 30, 2017Publication date: January 18, 2018Applicant: OLYMPUS CORPORATIONInventor: Rintaro NISHIHARA
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Patent number: 9769384Abstract: An imaging apparatus includes a camera shake correction unit which uses a coil and a magnet to move a movable portion including an image pickup device relative to a fixed portion. A position detection section detects the position of the movable portion. A setting section sets a resolving power of the detection of the position by the position detection section to a first or second resolving power which is a resolving power higher than the first resolving power and at which an amount of deviation from a target position is less than or equal to a pixel shift amount. A drive control section performs pixel shifts to move the movable portion with the second resolving power set by the setting section. A photography control section causes the image pickup device to perform exposures by timing of the pixel shifting and which composes images obtained by the exposures.Type: GrantFiled: March 3, 2016Date of Patent: September 19, 2017Assignee: OLYMPUS CORPORATIONInventor: Rintaro Nishihara
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Patent number: 9678493Abstract: The invention provides a position detection apparatus comprising: a base part, a moving part movable relatively with respect to the base part, a position detection part that detects a position of the moving part relative to the base part on the basis of a magnetic flux change to produce position data, a temperature detection part that detects an ambient temperature, a position correction part that calculates a correction value on the basis of a difference between the position data and a given reference value and the ambient temperature, and corrects the position data on the basis of the calculated correction value to produce a first corrected position data, and a linearity correction part that corrects the first corrected position data on the basis of the correction value for nonlinearity of the position detection part to produce a second corrected position data, wherein: the position detection part is capable of detecting position value as far as a position area where, within a position range of relativeType: GrantFiled: September 9, 2014Date of Patent: June 13, 2017Assignee: Olympus CorporationInventors: Takashi Ishikawa, Masanori Shimoyama, Rintaro Nishihara
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Patent number: 9516232Abstract: The invention disclosed herein provides a small-format image-shake correction apparatus and an imaging apparatus incorporating the same.Type: GrantFiled: November 24, 2015Date of Patent: December 6, 2016Assignee: OLYMPUS CORPORATIONInventors: Rintaro Nishihara, Takashi Ishikawa, Masanori Shimoyama
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Publication number: 20160248978Abstract: An imaging apparatus includes a camera shake correction unit which uses a coil and a magnet to move a movable portion including an image pickup device relative to a fixed portion. A position detection section detects the position of the movable portion. A setting section sets a resolving power of the detection of the position by the position detection section to a first or second resolving power which is a resolving power higher than the first resolving power and at which an amount of deviation from a target position is less than or equal to a pixel shift amount. A drive control section performs pixel shifts to move the movable portion with the second resolving power set by the setting section. A photography control section causes the image pickup device to perform exposures by timing of the pixel shifting and which composes images obtained by the exposures.Type: ApplicationFiled: March 3, 2016Publication date: August 25, 2016Applicant: OLYMPUS CORPORATIONInventor: Rintaro NISHIHARA
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Publication number: 20160080623Abstract: The invention disclosed herein provides a small-format image-shake correction apparatus and an imaging apparatus incorporating the same.Type: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Applicant: OLYMPUS CORPORATIONInventors: Rintaro NISHIHARA, Takashi ISHIKAWA, Masanori SHIMOYAMA
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Patent number: 9232141Abstract: The invention disclosed herein provides a small-format image-shake correction apparatus and an imaging apparatus incorporating the same.Type: GrantFiled: September 9, 2014Date of Patent: January 5, 2016Assignee: OLYMPUS CORPORATIONInventors: Rintaro Nishihara, Takashi Ishikawa, Masanori Shimoyama
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Patent number: 9031395Abstract: The present invention relates to a moving member control apparatus that makes sure unerring control of a moving member having an ill-balanced structure and an imaging apparatus that incorporates that control apparatus.Type: GrantFiled: March 28, 2014Date of Patent: May 12, 2015Assignee: Olympus CorporationInventors: Masanori Shimoyama, Takashi Ishikawa, Rintaro Nishihara
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Publication number: 20140379103Abstract: The invention provides a position detection apparatus comprising: a base part, a moving part movable relatively with respect to the base part, a position detection part that detects a position of the moving part relative to the base part on the basis of a magnetic flux change to produce position data, a temperature detection part that detects an ambient temperature, a position correction part that calculates a correction value on the basis of a difference between the position data and a given reference value and the ambient temperature, and corrects the position data on the basis of the calculated correction value to produce a first corrected position data, and a linearity correction part that corrects the first corrected position data on the basis of the correction value for nonlinearity of the position detection part to produce a second corrected position data, wherein: the position detection part is capable of detecting position value as far as a position area where, within a position range of relativeType: ApplicationFiled: September 9, 2014Publication date: December 25, 2014Applicant: OLYMPUS CORPORATIONInventors: Takashi ISHIKAWA, Masanori SHIMOYAMA, Rintaro NISHIHARA
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Publication number: 20140375829Abstract: The invention disclosed herein provides a small-format image-shake correction apparatus and an imaging apparatus incorporating the same.Type: ApplicationFiled: September 9, 2014Publication date: December 25, 2014Applicant: OLYMPUS CORPORATIONInventors: Rintaro NISHIHARA, Takashi ISHIKAWA, Masanori SHIMOYAMA
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Publication number: 20140212118Abstract: The moving member control apparatus of the invention is characterized by comprising a base part 10, a moving part 30 capable of moving relatively with respect to the base part 10, a first driving portion 71 that applies driving force to the moving part 30, a second driving portion 72 that applies driving force to the moving part 30, a first instruction portion that gives an instruction to the first driving portion 71 about a displacement position or where to move, a second instruction portion that gives an instruction to the second driving portion 72 about a displacement position, a first position acquisition portion 34a that acquires a real position of the first driving portion 71, a second position acquisition portion 34b that acquires a real position of the second driving portion 72, a first deviation calculation portion that calculates a first deviation eX1 between a position rX1 instructed by the first instruction portion and a real position X1pos acquired by the first position acquisition portion 34a, aType: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicant: OLYMPUS CORPORATIONInventors: Masanori SHIMOYAMA, Takashi ISHIKAWA, Rintaro NISHIHARA