Patents by Inventor Masanori Ogata
Masanori Ogata 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: 11391942Abstract: An endoscope having an optical fiber scanning apparatus that includes an optical fiber a fixed end of which is fixed and a free end for emitting illumination light of which vibrates in a first direction and a second direction, a ferrule which includes a through hole including an opening on a distal end surface and fixes the optical fiber inserted through the through hole, a pair of first fixing members which sandwich and fix the optical fiber in the first direction, a pair of second fixing members which sandwich and fix the optical fiber in the second direction, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which a Young's modulus of the pair of first fixing members is smaller than a Young's modulus of the pair of second fixing members.Type: GrantFiled: January 20, 2021Date of Patent: July 19, 2022Assignee: OLYMPUS CORPORATIONInventor: Masanori Ogata
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Patent number: 11213188Abstract: An optical fiber scanning device includes a housing, an optical fiber configured to emit light, a magnet disposed on the optical fiber, four drive coils configured to drive the optical fiber by applying to the magnet a magnetic field generated by a received drive power signal, and four detection coils configured to output an induced electromotive force signal corresponding to variation of a magnetic field, wherein the drive power signal is controlled based on the induced electromotive force signal, and four coil assemblies each including any one of the drive coils and any one of the detection coils are disposed at rotationally symmetrical positions so as to interpose the optical fiber among the four coil assemblies.Type: GrantFiled: July 26, 2018Date of Patent: January 4, 2022Assignee: OLYMPUS CORPORATIONInventors: Hiroshi Tosaka, Masanori Ogata
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Patent number: 11096562Abstract: An optical fiber scanning system includes: an optical fiber with a magnet; four drive coils configured to apply a drive magnetic field generated using a drive power signal to the magnet; four detection coils configured to output a detection signal in response to variation of a magnetic field; a controller configured to perform feedback control of the drive power signal; a signal output circuit configured to output a drive signal; a voltage-current conversion circuit configured to convert the drive signal to the drive power signal; and a correction circuit configured to output a magnet magnetic field signal by removing the drive magnetic field signal from the detection signal, and the controller controls the signal output circuit based on the magnet magnetic field signal.Type: GrantFiled: July 26, 2018Date of Patent: August 24, 2021Assignee: OLYMPUS CORPORATIONInventors: Hiroshi Tosaka, Masanori Ogata
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Patent number: 11061222Abstract: An optical fiber scanning apparatus includes an optical fiber whose fixed end is fixed and a free end for emitting illumination light of which vibrates in a first direction (X-axis direction) and a second direction (Y-axis direction), a ferrule including a through hole through which the optical fiber is inserted and including a pair of first fixing sections and a pair of second fixing sections which respectively fix the fixed end of the optical fiber, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which the optical fiber is sandwiched between the pair of first fixing sections and fixed in the first direction, and is sandwiched between the pair of second fixing sections and fixed in the second direction, and the pair of first fixing sections and the pair of second fixing sections differ in a shape of an abutment portion abutting on the optical fiber.Type: GrantFiled: June 25, 2019Date of Patent: July 13, 2021Assignee: OLYMPUS CORPORATIONInventor: Masanori Ogata
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Publication number: 20210141216Abstract: An endoscope having an optical fiber scanning apparatus that includes an optical fiber a fixed end of which is fixed and a free end for emitting illumination light of which vibrates in a first direction and a second direction, a ferrule which includes a through hole including an opening on a distal end surface and fixes the optical fiber inserted through the through hole, a pair of first fixing members which sandwich and fix the optical fiber in the first direction, a pair of second fixing members which sandwich and fix the optical fiber in the second direction, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which a Young's modulus of the pair of first fixing members is smaller than a Young's modulus of the pair of second fixing members.Type: ApplicationFiled: January 20, 2021Publication date: May 13, 2021Applicant: OLYMPUS CORPORATIONInventor: Masanori OGATA
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Patent number: 10928628Abstract: An optical fiber scanning apparatus includes an optical fiber a fixed end of which is fixed and a free end for emitting illumination light of which vibrates in a first direction and a second direction, a ferrule which includes a through hole including an opening on a distal end surface and fixes the optical fiber inserted through the through hole, a pair of first fixing members which sandwich and fix the optical fiber in the first direction, a pair of second fixing members which sandwich and fix the optical fiber in the second direction, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which a Young's modulus of the pair of first fixing members is smaller than a Young's modulus of the pair of second fixing members.Type: GrantFiled: June 24, 2019Date of Patent: February 23, 2021Assignee: OLYMPUS CORPORATIONInventor: Masanori Ogata
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Patent number: 10502947Abstract: An optical fiber scanning apparatus is the optical fiber scanning apparatus for which an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion of a magnetic field generation unit, the magnetic field generation unit is provided with four coil units each including a flexible substrate where a planar coil, a lead-out wiring layer of the planar coil and an external connection electrode pad are disposed, and an inside of the four coil units arranged in a square prism shape configures the hollow portion.Type: GrantFiled: October 28, 2016Date of Patent: December 10, 2019Assignee: OLYMPUS CORPORATIONInventors: Mamoru Hasegawa, Masanori Ogata, Hiroyoshi Yajima
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Publication number: 20190317316Abstract: An optical fiber scanning apparatus includes an optical fiber whose fixed end is fixed and a free end for emitting illumination light of which vibrates in a first direction (X-axis direction) and a second direction (Y-axis direction), a ferrule including a through hole through which the optical fiber is inserted and including a pair of first fixing sections and a pair of second fixing sections which respectively fix the fixed end of the optical fiber, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which the optical fiber is sandwiched between the pair of first fixing sections and fixed in the first direction, and is sandwiched between the pair of second fixing sections and fixed in the second direction, and the pair of first fixing sections and the pair of second fixing sections differ in a shape of an abutment portion abutting on the optical fiber.Type: ApplicationFiled: June 25, 2019Publication date: October 17, 2019Applicant: OLYMPUS CORPORATIONInventor: Masanori OGATA
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Publication number: 20190310466Abstract: An optical fiber scanning apparatus includes an optical fiber a fixed end of which is fixed and a free end for emitting illumination light of which vibrates in a first direction and a second direction, a ferrule which includes a through hole including an opening on a distal end surface and fixes the optical fiber inserted through the through hole, a pair of first fixing members which sandwich and fix the optical fiber in the first direction, a pair of second fixing members which sandwich and fix the optical fiber in the second direction, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which a Young's modulus of the pair of first fixing members is smaller than a Young's modulus of the pair of second fixing members.Type: ApplicationFiled: June 24, 2019Publication date: October 10, 2019Applicant: OLYMPUS CORPORATIONInventor: Masanori OGATA
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Publication number: 20180353056Abstract: An optical fiber scanning system includes: an optical fiber with a magnet; four drive coils configured to apply a drive magnetic field generated using a drive power signal to the magnet; four detection coils configured to output a detection signal in response to variation of a magnetic field; a controller configured to perform feedback control of the drive power signal; a signal output circuit configured to output a drive signal; a voltage-current conversion circuit configured to convert the drive signal to the drive power signal; and a correction circuit configured to output a magnet magnetic field signal by removing the drive magnetic field signal from the detection signal, and the controller controls the signal output circuit based on the magnet magnetic field signal.Type: ApplicationFiled: July 26, 2018Publication date: December 13, 2018Applicant: OLYMPUS CORPORATIONInventors: Hiroshi TOSAKA, Masanori OGATA
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Publication number: 20180325362Abstract: An optical fiber scanning device includes a housing, an optical fiber configured to emit light, a magnet disposed on the optical fiber, four drive coils configured to drive the optical fiber by applying to the magnet a magnetic field generated by a received drive power signal, and four detection coils configured to output an induced electromotive force signal corresponding to variation of a magnetic field, wherein the drive power signal is controlled based on the induced electromotive force signal, and four coil assemblies each including any one of the drive coils and any one of the detection coils are disposed at rotationally symmetrical positions so as to interpose the optical fiber among the four coil assemblies.Type: ApplicationFiled: July 26, 2018Publication date: November 15, 2018Applicant: OLYMPUS CORPORATIONInventors: Hiroshi TOSAKA, Masanori OGATA
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Publication number: 20180153382Abstract: An optical fiber scanning apparatus includes a tubular housing, an optical fiber disposed along a Z axis, which is a center axis of the housing, provided with a magnet, and configured to emit light from a free end thereof, an X-axis coil including at least one spiral coil configured to apply a magnetic field in an X-axis direction orthogonal to the Z axis, a Y-axis coil including at least one spiral coil configured to apply a magnetic field in a Y-axis direction orthogonal to the Z axis and the X axis, and a magnetic-field inducing section including an inner magnetic-field inducing section including a core disposed in a center portion on an inside, which is the center axis side of the spiral coils, and an outer magnetic-field inducing section disposed on an outside opposite to the inside.Type: ApplicationFiled: January 23, 2018Publication date: June 7, 2018Applicant: OLYMPUS CORPORATIONInventor: Masanori OGATA
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Publication number: 20170042410Abstract: An optical fiber scanning apparatus is the optical fiber scanning apparatus for which an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion of a magnetic field generation unit, the magnetic field generation unit is provided with four coil units each including a flexible substrate where a planar coil, a lead-out wiring layer of the planar coil and an external connection electrode pad are disposed, and an inside of the four coil units arranged in a square prism shape configures the hollow portion.Type: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Applicant: OLYMPUS CORPORATIONInventors: Mamoru HASEGAWA, Masanori OGATA, Hiroyoshi YAJIMA
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Patent number: 8246537Abstract: According to the present invention, a capsular endoscope having at least an image pickup optical system, an illumination unit, an image pickup portion, and a circuit board comprises a marker shooting unit that indwells a marker member in a body cavity. Consequently, a predetermined marker is indwelled in a desired region such as a lesion discovered using the capsular endoscope so that the region can be readily rediscovered during reexamination.Type: GrantFiled: December 20, 2007Date of Patent: August 21, 2012Assignee: Olympus CorporationInventors: Noriyuki Fujimori, Masanori Ogata, Kenji Miyata
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Patent number: 7909312Abstract: A vibration-shock absorbing mechanism that protects an object disposed in a housing includes a shock-absorbing member that is disposed in the housing and absorbs a shock, and a resonance-damping member that is disposed between the object and the shock-absorbing member and dampens a vibration and shock in a predetermined frequency range including a resonant frequency of the object.Type: GrantFiled: April 20, 2006Date of Patent: March 22, 2011Assignee: Sony CorporationInventor: Masanori Ogata
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Patent number: 7623283Abstract: An actuator includes a movable plate, at least one elastic member supporting the movable plate to allow the movable plate to rock, a support holding the elastic member, a wiring layer extending on the elastic member, and a protective film covering the wiring layer. The protective film is of a resin.Type: GrantFiled: October 20, 2006Date of Patent: November 24, 2009Assignee: Olympus CorporationInventors: Satoshi Inui, Masanori Ogata
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Publication number: 20080114204Abstract: According to the present invention, a capsular endoscope having at least an image pickup optical system, an illumination unit, an image pickup portion, and a circuit board comprises a marker shooting unit that indwells a marker member in a body cavity. Consequently, a predetermined marker is indwelled in a desired region such as a lesion discovered using the capsular endoscope so that the region can be readily rediscovered during reexamination.Type: ApplicationFiled: December 20, 2007Publication date: May 15, 2008Applicant: OLYMPUS CORPORATIONInventors: Noriyuki Fujimori, Masanori Ogata, Kenji Miyata
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Publication number: 20070173696Abstract: According to the present invention, a capsular endoscope having at least an image pickup optical system, an illumination unit, an image pickup portion, and a circuit board comprises a marker shooting unit that indwells a marker member in a body cavity. Consequently, a predetermined marker is indwelled in a desired region such as a lesion discovered using the capsular endoscope so that the region can be readily rediscovered during reexamination.Type: ApplicationFiled: March 22, 2007Publication date: July 26, 2007Applicant: OLYMPUS CORPORATIONInventors: Noriyuki Fujimori, Masanori Ogata, Kenji Miyata
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Publication number: 20070158887Abstract: A vibration-shock absorbing mechanism that protects an object disposed in a housing includes a shock-absorbing member that is disposed in the housing and absorbs a shock, and a resonance-damping member that is disposed between the object and the shock-absorbing member and dampens a vibration and shock in a predetermined frequency range including a resonant frequency of the object.Type: ApplicationFiled: April 20, 2006Publication date: July 12, 2007Applicant: Sony CorporationInventor: Masanori Ogata
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Publication number: 20070089973Abstract: An actuator includes a movable plate, at least one elastic member supporting the movable plate to allow the movable plate to rock, a support holding the elastic member, a wiring layer extending on the elastic member, and a protective film covering the wiring layer. The protective film is of a resin.Type: ApplicationFiled: October 20, 2006Publication date: April 26, 2007Applicant: Olympus CorporationInventors: Satoshi Inui, Masanori Ogata