Patents by Inventor Takeshi Suga
Takeshi Suga 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: 11933961Abstract: A stereoscopic vision endoscope objective optical system includes, in order from an object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a rear-side lens group having a positive refractive power. The rear-side lens group includes a first rear group and a second rear group. The first lens group and the second lens group are disposed so that an optical axis of the second lens group coincides with an optical axis of the first lens group. The optical axis of the first lens group is located between an optical axis of the first rear group and an optical axis of the second rear group. Each of the first rear group and the second rear group includes a first sub group, an aperture stop, and a second sub group, and the first sub group includes a negative lens.Type: GrantFiled: October 1, 2020Date of Patent: March 19, 2024Assignee: OLYMPUS CORPORATIONInventors: Toyoharu Hanzawa, Takeshi Suga
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Publication number: 20240085534Abstract: The light emitting device includes a semiconductor light emitting element including a first reflector, a resonator spacer including an active layer, and a second reflector stacked in this order over a semiconductor substrate. The semiconductor light emitting element includes a saturable absorption layer provided between the semiconductor substrate and the second reflector. The semiconductor light emitting element is configured to emit light having a profile that has a maximum peak value and converges to a stable value of a predetermined light intensity after the maximum peak value.Type: ApplicationFiled: November 13, 2023Publication date: March 14, 2024Inventors: TAKESHI UCHIDA, TAKAKO SUGA
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Publication number: 20230371817Abstract: An endoscope system according to the present invention includes: an illumination light source that emits illumination light for illuminating an object; a therapeutic light source that emits therapeutic light for causing a photoreactive reagent accumulated in a treatment target site to react; a guide light source that emits guide light having a wavelength shorter than a wavelength band of the therapeutic light source; an imager that captures an optical image, the imager including an optical filter that cuts light in the wavelength band of the therapeutic light and transmits a part of white light, the guide light, and fluorescence emitted by the reagent; a controller that controls emission timings of the illumination light source, the therapeutic light source, and the guide light source; and an image processor that generates an image on the basis of an optical image obtained by light emitted from the illumination light source, the therapeutic light source, and the guide light source, in which the controller cauType: ApplicationFiled: October 24, 2022Publication date: November 23, 2023Applicant: OLYMPUS CORPORATIONInventors: Masaru MIZUNAKA, Yasunobu IGA, Takeshi SUGA, Chikashi OTA
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Publication number: 20230233196Abstract: A living tissue sampling method includes inserting an endoscope inserted into a guide sheath into a body cavity of a subject, checking three-dimensional image information of a body cavity path against distal end position data of the endoscope, bringing distal ends of the endoscope and the guide sheath close to a focused region, removing the endoscope from the guide sheath while keeping the guide sheath stationed inside the body cavity, inserting a biopsy instrument into the guide sheath, and sampling living tissue of the focused region by the biopsy instrument.Type: ApplicationFiled: March 8, 2023Publication date: July 27, 2023Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Koichiro ITO, Tetsuhide TAKEYAMA, Takeshi SUGA, Kazunari HANANO, Keigo MATSUO
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Patent number: 11249299Abstract: A stereoscopic vision optical system includes a first lens group having a negative refractive power, disposed nearest to an object, a second lens group having a positive refractive power, and a rear-side lens group having a positive refractive power. The rear-side lens group includes a first rear group and a second rear group. The optical axis of the first lens group, an optical axis of the first rear group, and an optical axis of the second rear group is positioned on the same plane. The optical axis of the first lens group is positioned between the optical axis of the first rear group and the optical axis of the second rear group, and the following conditional expression (1) is satisfied: 0.08?((?L/2)×(f1/f2))×(1/WD)?0.25??(1).Type: GrantFiled: February 25, 2020Date of Patent: February 15, 2022Assignee: OLYMPUS CORPORATIONInventors: Toyoharu Hanzawa, Takeshi Suga
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Publication number: 20210141209Abstract: A stereoscopic vision endoscope objective optical system includes, in order from an object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a rear-side lens group having a positive refractive power. The rear-side lens group includes a first rear group and a second rear group. The first lens group and the second lens group are disposed so that an optical axis of the second lens group coincides with an optical axis of the first lens group. The optical axis of the first lens group is located between an optical axis of the first rear group and an optical axis of the second rear group. Each of the first rear group and the second rear group includes a first sub group, an aperture stop, and a second sub group, and the first sub group includes a negative lens.Type: ApplicationFiled: October 1, 2020Publication date: May 13, 2021Applicant: OLYMPUS CORPORATIONInventors: Toyoharu HANZAWA, Takeshi SUGA
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Publication number: 20200192077Abstract: A stereoscopic vision optical system includes a first lens group having a negative refractive power, disposed nearest to an object, a second lens group having a positive refractive power, and a rear-side lens group having a positive refractive power. The rear-side lens group includes a first rear group and a second rear group. The optical axis of the first lens group, an optical axis of the first rear group, and an optical axis of the second rear group is positioned on the same plane. The optical axis of the first lens group is positioned between the optical axis of the first rear group and the optical axis of the second rear group, and the following conditional expression (1) is satisfied: 0.08?((?L/2)×(f1/f2))×(1/WD)?0.25??(1).Type: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: OLYMPUS CORPORATIONInventors: Toyoharu HANZAWA, Takeshi SUGA
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Patent number: 10686973Abstract: An image pickup apparatus, includes a first optical system and a second optical system which generate two optical images having mutual parallax; and one image sensor which captures the two optical images, wherein each of the first optical system and the second optical system has a different focusing unit, further includes a first frame which holds some of lenses in the first optical system, a second frame which holds the image sensor; and a third frame which holds lenses in the first optical system other than the lenses held by the first frame, and lenses in the second optical system, wherein the first frame is movable in a direction of optical axes with respect to the third frame, and the second frame is movable in a direction of optical axes with respect to the third frame.Type: GrantFiled: June 8, 2018Date of Patent: June 16, 2020Assignee: OLYMPUS CORPORATIONInventor: Takeshi Suga
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Publication number: 20200037865Abstract: An image processing device is configured to obtain first-type image data and second-type image data generated as a result of taking images of same photographic subject from different directions, and generate a parallax image based on the first-type image data and the second-type image data. The image processing device includes a processor comprising hardware. The processor is configured to: set an image selection mode in which an image is selectable based on an image displayed in a display; superimpose a frame data onto image data to be displayed in the display when the image selection mode is set, the frame data representing a boundary area whose size is set based on an optical system that forms an image of the photographic subject; and obtain the first-type image data and the second-type image data corresponding to selected image when the image selection mode is set.Type: ApplicationFiled: October 9, 2019Publication date: February 6, 2020Applicant: OLYMPUS CORPORATIONInventors: Kyosuke MIZUNO, Ryuichi YAMAZAKI, Kazuhiko HINO, Takeshi SUGA
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Patent number: 10552948Abstract: An endoscope apparatus having a function of switching between the 2-D observation for a planar view and the 3-D observation for a stereoscopic view, includes an image Processor which carries out processing of reducing a distortion of an image pickup optical system for an image pickup signal achieved by an image pickup element of the endoscope apparatus at the time of the 3-D observation, and the image Processor carries out image processing that satisfies the following conditional expression (1): 0.1<B/A<0.8, as well as A<0??(1) where, A denotes a distortion at the maximum image height at the time of the 2-D observation, and B denotes a distortion at the maximum image height at the time of the 3-D observation.Type: GrantFiled: October 25, 2018Date of Patent: February 4, 2020Assignee: OLYMPUS CORPORATIONInventor: Takeshi Suga
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Publication number: 20190066278Abstract: An endoscope apparatus having a function of switching between the 2-D observation for a planar view and the 3-D observation for a stereoscopic view, includes an image Processor which carries out processing of reducing a distortion of an image pickup optical system for an image pickup signal achieved by an image pickup element of the endoscope apparatus at the time of the 3-D observation, and the image Processor carries out image processing that satisfies the following conditional expression (1): 0.1<B/A<0.8, as well as A<0??(1) where, A denotes a distortion at the maximum image height at the time of the 2-D observation, and B denotes a distortion at the maximum image height at the time of the 3-D observation.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Applicant: OLYMPUS CORPORATIONInventor: Takeshi SUGA
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Patent number: 10105034Abstract: There is provided an endoscope apparatus which enables to observe a three-dimensional image which is easy to view even in close observation. An endoscope apparatus, comprises: optical systems which form images for a left-eye and a right-eye respectively; an image pickup element which captures the two images and generates pictorial images for the left eye and the right eye; and at least one image processing unit which carries out processing of a pictorial image signal from the image pickup element and creates a stereoscopic image that can be displayed on a monitor, wherein the endoscope apparatus satisfies the following conditional expression (1) 0.3<CP×(1+Dt1)<7, and CP?10??(1) where, CP denotes a distance (mm) from a surface nearest to object of the optical system up to an object, when an amount of left and right shift of the left-eye pictorial image and the right-eye pictorial image becomes 0, at a center of a monitor screen, and Dt1 denotes a distortion in length at the maximum image height.Type: GrantFiled: May 27, 2017Date of Patent: October 23, 2018Assignee: OLYMPUS CORPORATIONInventor: Takeshi Suga
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Publication number: 20180295265Abstract: An image pickup apparatus, includes a first optical system and a second optical system which generate two optical images having mutual parallax; and one image sensor which captures the two optical images, wherein each of the first optical system and the second optical system has a different focusing unit, further includes a first frame which holds some of lenses in the first optical system, a second frame which holds the image sensor; and a third frame which holds lenses in the first optical system other than the lenses held by the first frame, and lenses in the second optical system, wherein the first frame is movable in a direction of optical axes with respect to the third frame, and the second frame is movable in a direction of optical axes with respect to the third frame.Type: ApplicationFiled: June 8, 2018Publication date: October 11, 2018Applicant: OLYMPUS CORPORATIONInventor: Takeshi SUGA
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Patent number: 9788732Abstract: An optical measuring device includes: a light source unit; a measurement probe including a fiber bundle, an illumination fiber that illuminates a living tissue with a illumination light, and a plurality of light-receiving fibers that receives return light of the illumination light reflected and/or scattered at the living tissue; a detection unit that receives the return light of the illumination light detected by the plurality of respective light-receiving fibers, and performs photoelectric conversion to detect respective signal intensities; and an association unit that associates the respective signal intensities detected by the detection unit with distances from the illumination fiber to the respective light-receiving fibers on an end face of a distal end portion of the measurement probe, when light having an intensity gradient around the illumination fiber is projected to the end face of the distal end portion of the measurement probe.Type: GrantFiled: September 4, 2014Date of Patent: October 17, 2017Assignee: OLYMPUS CORPORATIONInventors: Ryosuke Ito, Kenji Kamimura, Kazuhiro Gono, Takeshi Suga, Masahiro Katakura, Yoshimine Kobayashi
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Patent number: 9778454Abstract: A light adjusting apparatus including a drive section provided with an axial magnet, a coil core member and a coil, a first substrate provided an opening and a first cut-out portion, a second substrate provided with an opening and a second cut-out portion, located at a predetermined distance from the first substrate, an incident light adjusting section to which the axial magnet is joined, and an axial magnet support member provided with a distance keeping portion that keeps a distance between the coil core member and the axial magnet to within a certain range and a dropout prevention portion that prevents dropout of the axial magnet from the first cut-out portion, the axial magnet support member being fixed to the coil core member, in which the incident light adjusting section is rotated by the drive section for adjusting the incident light.Type: GrantFiled: May 7, 2015Date of Patent: October 3, 2017Assignee: OLYMPUS CORPORATIONInventors: Kaoru Matsuki, Takeshi Suga
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Publication number: 20170258297Abstract: There is provided an endoscope apparatus which enables to observe a three-dimensional image which is easy to view even in close observation. An endoscope apparatus, comprises: optical systems which form images for a left-eye and a right-eye respectively; an image pickup element which captures the two images and generates pictorial images for the left eye and the right eye; and at least one image processing unit which carries out processing of a pictorial image signal from the image pickup element and creates a stereoscopic image that can be displayed on a monitor, wherein the endoscope apparatus satisfies the following conditional expression (1) 0.Type: ApplicationFiled: May 27, 2017Publication date: September 14, 2017Applicant: OLYMPUS CORPORATIONInventor: Takeshi SUGA
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Patent number: 9746662Abstract: An endoscope observation system includes a light source section generating different types of light in at least partly different wavelength bands for observation of a polarized light-based observation image and for observation of a non polarized light-based observation image, respectively; an irradiation side polarization separation element subjecting the illumination light from the light source section to polarization separation; a light reception side polarization separation element performing polarization separation, in a particular wavelength band of the light from the observation target, by transmitting polarized light with a predetermined polarization component while reflecting polarized light with a polarization component other than the predetermined polarization component, and in a wavelength bend other than the particular wavelength band, exhibiting same transmission and reflection characteristics for both polarized light and non polarized light; and an image pickup element receiving the transmittedType: GrantFiled: March 9, 2009Date of Patent: August 29, 2017Assignee: OLYMPUS CORPORATIONInventors: Daisuke Akiyama, Takeshi Suga
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Publication number: 20170123181Abstract: A lens driving apparatus, includes: a soft iron; a magnet; a driver circuit; and a timing generation circuit, wherein when a first instruction is provided, the timing generation circuit generates the first drive signal, and controls the driver circuit to continuously generate the first drive signal with a period not allowing overheat caused by energization of the electromagnetic actuator even after the soft iron comes into contact with the end part until the second instruction is provided, and when a second instruction is provided, the timing generation circuit generates a second drive signal, and controls the driver circuit to continuously generate the second drive signal with a period not allowing overheat caused by energization of the electromagnetic actuator even after the soft iron comes into contact with the other end part until the first instruction is provided.Type: ApplicationFiled: January 12, 2017Publication date: May 4, 2017Applicant: OLYMPUS CORPORATIONInventors: Yutaka FUJISAWA, Hiroshi UNSAI, Teruyuki NISHIHARA, Takeshi SUGA
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Patent number: 9417445Abstract: An image-acquisition device is consists of a single objective optical system; an image-acquisition element that acquires an image of an optical image of an object formed by the objective optical system; an optical component that can be inserted into and removed from the optical axis of the objective optical system, at an intermediate position on the optical axis; and a moving mechanism that moves the optical component between a position on the optical axis of the objective optical system and a position off the optical axis. The optical component has a deflecting surface for deflecting the optical axis of the objective optical system and a refracting surface having power.Type: GrantFiled: February 9, 2016Date of Patent: August 16, 2016Assignee: Olympus CorporationInventor: Takeshi Suga
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Publication number: 20160161732Abstract: An image-acquisition device is consists of a single objective optical system; an image-acquisition element that acquires an image of an optical image of an object formed by the objective optical system; an optical component that can be inserted into and removed from the optical axis of the objective optical system, at an intermediate position on the optical axis; and a moving mechanism that moves the optical component between a position on the optical axis of the objective optical system and a position off the optical axis. The optical component has a deflecting surface for deflecting the optical axis of the objective optical system and a refracting surface having power.Type: ApplicationFiled: February 9, 2016Publication date: June 9, 2016Inventor: Takeshi Suga