Patents by Inventor Kazunari Hanano
Kazunari Hanano 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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Publication number: 20230419517Abstract: A display processing unit causes a display device to display an endoscopic image of a living tissue in a somatic cavity captured by an endoscope. An operation reception unit receives a user operation that is performed so as to set an area of interest in the endoscopic image. An area-of-interest setting unit sets the area of interest in the endoscopic image based on the user operation. A three-dimensional information acquisition unit acquires three-dimensional shape information of the living tissue captured by the endoscope. A virtual surface derivation unit derives three-dimensional shape information of a virtual surface in the area of interest from three-dimensional shape information of an area different from the area of interest. A size information identification unit identifies information concerning a size of the virtual surface from the three-dimensional shape information of the virtual surface.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Applicants: OLYMPUS CORPORATION, NATIONAL CANCER CENTERInventors: Tatsuya NAKAMURA, Daichi WATANABE, Kazunari HANANO, Keigo MATSUO, Taku SAKAMOTO, Ichiro ODA
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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: 11345085Abstract: A method of producing an optical element includes forming a base portion that supports a curved surface of the optical element by discharging a transmissive material that allows transmission of light in a first amount, and forming the curved surface by discharging, to the base portion, the transmissive material in a second discharge amount smaller than the first discharge amount.Type: GrantFiled: November 30, 2018Date of Patent: May 31, 2022Assignee: OLYMPUS CORPORATIONInventor: Kazunari Hanano
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Publication number: 20220095895Abstract: A light source device includes: a plurality of first semiconductor light sources; a condenser lens; and a light guide having a prismatic shape in which an incident surface is on a first side of a central axis direction of the prismatic shape and an emission surface is on a second side of the central axis direction of the prismatic shape, a positional relationship between the plurality of first semiconductor light sources, the condenser lens, and the light guide is set such that a traveling direction of the light incident on the incident surface from the first semiconductor light sources via the condenser lens is perpendicular to a reflecting surface of the light guide in a plan view as viewed in the central axis direction of the prismatic shape, the incident light being reflected on the reflecting surface in the light guide.Type: ApplicationFiled: December 9, 2021Publication date: March 31, 2022Applicant: OLYMPUS CORPORATIONInventors: Motoki TABATA, Kazunari HANANO, Kazuaki MURAYAMA
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Publication number: 20220095896Abstract: An illumination optical system includes: a condenser lens; a first light guiding member configured to guide the light input to a first entrance end face by reflecting the light inside the condenser lens, and output the light from a first exit end face; a pupil generating lens configured to generate a pupil with the first exit end face serving as an object surface; and a second light guiding member configured to guide the light input to a second entrance end face by reflecting the light inside the second light guiding member, and output the light from a second exit end face.Type: ApplicationFiled: December 9, 2021Publication date: March 31, 2022Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Patent number: 11090871Abstract: A body phantom according to an embodiment includes a layered resin structure formed by combining a first material having a first refractive index and a second material having a second refractive index based on three-dimensional data that indicates an optical characteristic of a living body, wherein a mixing ratio of the second material to the first material to form the layered resin structure is a value corresponding to the optical characteristic.Type: GrantFiled: December 6, 2018Date of Patent: August 17, 2021Assignee: OLYMPUS CORPORATIONInventor: Kazunari Hanano
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Publication number: 20210141208Abstract: An illumination optical system includes a light source, a deflecting element that deflects light from the light source, and a light guide lens group that includes at least one lens and that guides the light deflected by the deflecting element to an input end of a light guide member. The deflecting element changes a deflection angle of the light by deflecting the light input to the deflecting element so as to change an incidence angle of the light entering the input end.Type: ApplicationFiled: December 17, 2020Publication date: May 13, 2021Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Publication number: 20210103138Abstract: An illumination optical system includes: a light source; a light guide member that includes an input end and a plurality of output ends, optically guides light entering the input end, and outputs the light from the plurality of output ends; and a deflecting element that deflects the light from the light source toward the input end and changes a position where the light enters an end surface of the input end. The end surface of the input end is divided into a plurality of areas. Light entering one of the areas is output from one of the output ends different from an output end from which light entering another one of the areas is output.Type: ApplicationFiled: December 17, 2020Publication date: April 8, 2021Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Patent number: 10905314Abstract: For the purpose of performing illumination with which vignetting of illumination light caused by a structure is alleviated, thus making the difference between a bright part and a dark part on an object less noticeable, an illumination device according to the present invention is provided with: a light-emitting part that has an emission end from which illumination light is emitted; a diffusion optical member that is disposed around a predetermined axis in the circumferential direction, that is provided with an incident end disposed so as to be opposed to the emission end, that guides the illumination light entering from the incident end while diffusing the illumination light, and that emits the illumination light from a surface thereof; and a reflective layer that is disposed adjacent to a radially inward surface of the diffusion optical member and that reflects the illumination light radially outward, wherein an angle, around the axis, of an emission region for the illumination light in the diffusion opticalType: GrantFiled: May 9, 2018Date of Patent: February 2, 2021Assignee: OLYMPUS CORPORATIONInventors: Sho Shinji, Kazunari Hanano
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Publication number: 20200200953Abstract: According to an embodiment, a method of producing a lens unit in which lens unit is formed by curing a light-transmitting resin and includes a plurality of lens portions includes: forming, by resin, a first lens portion including a first lens surface and a second lens surface; forming, by resin integrally with first lens portion, a cylindrical support portion extending in a direction parallel to an optical axis direction of first lens portion; forming, by resin integrally with support portion, a second lens portion including a third lens surface facing second lens surface and a fourth lens surface, and having an optical axis coinciding with optical axis of first lens portion; and forming a diffraction grating integrally when any one or more of first lens surface, second lens surface, third lens surface, and fourth lens surface is formed.Type: ApplicationFiled: March 3, 2020Publication date: June 25, 2020Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Publication number: 20190105846Abstract: A body phantom according to an embodiment includes a layered resin structure formed by combining a first material having a first refractive index and a second material having a second refractive index based on three-dimensional data that indicates an optical characteristic of a living body, wherein a mixing ratio of the second material to the first material to form the layered resin structure is a value corresponding to the optical characteristic.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Publication number: 20190091928Abstract: A method of producing an optical element includes forming a base portion that supports a curved surface of the optical element by discharging a transmissive material that allows transmission of light in a first amount, and forming the curved surface by discharging, to the base portion, the transmissive material in a second discharge amount smaller than the first discharge amount.Type: ApplicationFiled: November 30, 2018Publication date: March 28, 2019Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Publication number: 20190084255Abstract: A method of producing a lens unit includes forming a layer by switching between a transmissive material that allows transmission of light and a light-shielding material that shields light, and stacking formed layers to form a lens from the transmissive material and forma barrel that holds the lens from the light-shielding material.Type: ApplicationFiled: October 29, 2018Publication date: March 21, 2019Applicant: OLYMPUS CORPORATIONInventors: Kazunari HANANO, Susumu TAKAHASHI, Yasuhiro MIYAZAKI
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Publication number: 20180272614Abstract: An optical device production apparatus includes: an manufacturing head that manufactures an optical device by successively building layers of optical material; and a controller that acquires a result of measurement of an optical performance of an optical system including the optical device manufactured. The controller controls the manufacturing head to terminate manufacturing the optical device on the condition that the result of measurement acquired by the controller meets a predetermined condition.Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Applicant: OLYMPUS CORPORATIONInventors: Kazunari HANANO, Takeshi YAMAZAKI, Yoshihiro MAEDA, Kanto MIYAZAKI, Tadashi HIRATA, Hiroshi KODAMA
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Publication number: 20180256014Abstract: For the purpose of performing illumination with which vignetting of illumination light caused by a structure is alleviated, thus making the difference between a bright part and a dark part on an object less noticeable, an illumination device according to the present invention is provided with: a light-emitting part that has an emission end from which illumination light is emitted; a diffusion optical member that is disposed around a predetermined axis in the circumferential direction, that is provided with an incident end disposed so as to be opposed to the emission end, that guides the illumination light entering from the incident end while diffusing the illumination light, and that emits the illumination light from a surface thereof; and a reflective layer that is disposed adjacent to a radially inward surface of the diffusion optical member and that reflects the illumination light radially outward, wherein an angle, around the axis, of an emission region for the illumination light in the diffusion opticalType: ApplicationFiled: May 9, 2018Publication date: September 13, 2018Applicant: OLYMPUS CORPORATIONInventors: Sho SHINJI, Kazunari HANANO
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Publication number: 20160324409Abstract: A first light source module and an irradiation module are mutually combined. By the combination, illumination light corresponding to a purpose of use is emitted. A relative distance between a light source-side emitter and an irradiation-side incidence entrance in an optical axis direction is adjusted as desired in accordance with the irradiation module, which is connected to the first light source module.Type: ApplicationFiled: July 21, 2016Publication date: November 10, 2016Applicant: OLYMPUS CORPORATIONInventors: Motoki TABATA, Bakusui DAIDOJI, Satoshi OHARA, Sho SHINJI, Kazunari HANANO
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Patent number: 9482870Abstract: Provided is a light source apparatus including a plurality of semiconductor light sources that output beams of light having different wavelengths; a plurality of light collimating portions that convert the respective beams of light output from these light sources to collimated light beams; a combining portion that combines the plurality of collimated beams produced by these light collimating portions into a single light path; a light guide whose entrance end is disposed in the single light path; a focusing portion that focuses the collimated beams combined by the combining portion onto the entrance end; and a light-distribution-characteristics adjusting portion that adjusts beam diameters of the plurality of beams of light so that numerical apertures of the plurality of beams of light incident on the entrance end become substantially equal.Type: GrantFiled: December 16, 2014Date of Patent: November 1, 2016Assignee: OLYMPUS CORPORATIONInventor: Kazunari Hanano
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Publication number: 20150098242Abstract: Provided is a light source apparatus including a plurality of semiconductor light sources that output beams of light having different wavelengths; a plurality of light collimating portions that convert the respective beams of light output from these light sources to collimated light beams; a combining portion that combines the plurality of collimated beams produced by these light collimating portions into a single light path; a light guide whose entrance end is disposed in the single light path; a focusing portion that focuses the collimated beams combined by the combining portion onto the entrance end; and a light-distribution-characteristics adjusting portion that adjusts beam diameters of the plurality of beams of light so that numerical apertures of the plurality of beams of light incident on the entrance end become substantially equal.Type: ApplicationFiled: December 16, 2014Publication date: April 9, 2015Applicant: OLYMPUS CORPORATIONInventor: Kazunari HANANO
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Patent number: 8547427Abstract: An illumination device and an observation system capable of outputting light having a continuous spectrum and high color rendering properties are provided. Employed is an illumination device including a first light source that emits first-wavelength-band light having a first wavelength band of violet color; a second light source that emits second-wavelength-band light having a second wavelength band that is broader than the first wavelength band and having a continuous spectrum; a light combining section that is composed of a dicroic mirror and that combines the first-wavelength-band light and the second-wavelength-band light; and a combination-ratio adjusting section that adjusts the combination ratio of the first-wavelength-band light and the second-wavelength-band light to be combined by the light combining section.Type: GrantFiled: September 13, 2012Date of Patent: October 1, 2013Assignee: Olympus Medical Systems Corp.Inventors: Kazunari Hanano, Takeshi Suga, Hirokazu Godo
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Patent number: 8459853Abstract: A light source apparatus includes: a light source section that emits a luminous flux whose quantity of light is larger in a central region than in a peripheral region; a condensing optical system that condenses an incoming luminous flux; and a light distribution correction optical element arranged between the light source section and the condensing optical section, in which a central portion has a negative power that is more intense than that of a peripheral region.Type: GrantFiled: December 8, 2011Date of Patent: June 11, 2013Assignee: Olympus Medical Systems Corp.Inventor: Kazunari Hanano