Patents by Inventor Naoki Kohara
Naoki Kohara 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: 20250041326Abstract: The present invention provides a therapeutic agent for refractory viral infections, etc., which is capable of reducing or eliminating cccDNA from hepatocytes. The therapeutic agent for refractory viral infections according to the present invention is characterized by comprising a complex encapsulating poly-I or a poly-I analog and poly-C or a poly-C analog within a drug carrier useful for drug delivery into cells, wherein the surface of the carrier is conjugated with a molecule imparting the ability to accumulate in hepatocytes.Type: ApplicationFiled: November 9, 2022Publication date: February 6, 2025Inventors: Michinori KOHARA, Naoki YAMAMOTO, Yasuhito TANAKA, Yusuke SATO
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Publication number: 20240255591Abstract: A magnetic sensor includes a first half-bridge circuit, a second half-bridge circuit, and a holding member. The first half-bridge circuit includes a first magnetoresistive effect element and a second magnetoresistive effect element. The second half-bridge circuit includes a third magnetoresistive effect element and a fourth magnetoresistive effect element. The first magnetoresistive effect element detects a magnetic field aligned with an X-axis. The second magnetoresistive effect element detects a magnetic field aligned with a Y-axis. The third magnetoresistive effect element detects a magnetic field aligned with a first axis. The fourth magnetoresistive effect element detects a magnetic field aligned with a second axis.Type: ApplicationFiled: May 16, 2022Publication date: August 1, 2024Inventors: Kazuhiro ONAKA, Naoki KOHARA
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Publication number: 20240142550Abstract: A magnetic sensor includes a ceramic substrate, a GMR layer, and an undercoat layer. The ceramic substrate includes a substrate body and a glazing layer. The substrate body contains a ceramic as a material thereof. The glazing layer is formed on a surface of the substrate body. The GMR layer has a multilayer structure of a plurality of magnetic layers and a plurality of non-magnetic layers. The undercoat layer is formed between the glazing layer and the GMR layer. The undercoat layer contains a BCC solid solution.Type: ApplicationFiled: March 4, 2022Publication date: May 2, 2024Inventors: Naoki KOHARA, Kazuhiro ONAKA, Tomoya NAKATANI, Prabhanjan Dilip KULKARNI
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Publication number: 20230384125Abstract: A position detection system includes a magnetic pole block and a magnetic sensor. The magnetic pole block includes a plurality of magnetic poles arranged in a first direction. The plurality of magnetic poles are arranged such that N poles and S poles are alternately arranged as the plurality of magnetic poles in the first direction. At least one member selected from the magnetic pole block and the magnetic sensor is movable in the first direction with respect to the other member. The magnetic sensor includes a plurality of magnetoresistive effect elements and a bias magnet. The plurality of magnetoresistive effect elements are arranged side by side in the first direction. The bias magnet applies, to the plurality of magnetoresistive effect elements, a magnetic field having an orientation toward one of two opposite sides of the first direction.Type: ApplicationFiled: October 26, 2021Publication date: November 30, 2023Inventors: Kazuhiro ONAKA, Noritaka ICHINOMIYA, Naoki KOHARA, Takafumi TSUSHIMA
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Patent number: 10845583Abstract: A scanning microscope includes a scanning unit that causes irradiation light emitted by a light source to scan a sample, an optical system that guides the emitted light that has passed through the scanning unit to the sample, an isolation unit that includes a transmissive portion that enables the irradiation light to pass the transmissive portion and a reflective portion that reflects at least some of light that is included in emitted light generated from the sample as a result of the irradiation light being radiated to the sample and that has passed through the optical system and the scanning unit, and a detection unit that detects the emitted light that has passed through the isolation unit. The isolation unit is disposed in an optical path of the irradiation light between the light source and the scanning unit.Type: GrantFiled: November 29, 2016Date of Patent: November 24, 2020Assignee: Canon Kabushiki KaishaInventors: Naoki Kohara, Akira Yamamoto
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Patent number: 10809538Abstract: Image acquisition apparatuses, spectral apparatuses, methods and storage mediums for use with same are provided herein. At least one apparatus includes: a diffraction element irradiated by a light; a fiber for receiving reflected scattered light from a subject; a diffraction grating dispersing the transmitted light into light fluxes of wavelength bands again; an optical system imaging the split light fluxes; and an imaging device near the focal point of the optical system. An image is changed by rotating the diffraction grating, from which a two-dimensional image is acquired. The transmitted light may be branched into two or more, and input to a collimator lens and imaged as multiple spectral sequences by the optical system. At least one apparatus may form light fluxes traveling at different angles; and may acquire spectral information of the reflected and scattered light. Preferably, for the luminous fluxes, no gap exists in an image.Type: GrantFiled: November 27, 2017Date of Patent: October 20, 2020Assignee: Canon U.S.A., Inc.Inventors: Osamu Koyama, Akira Yamamoto, Naoki Kohara
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Patent number: 10682044Abstract: A Spectrally Encoded Forward View or Multi-View Endoscope, Probe, and Imaging Apparatus and system, and methods and storage mediums for use therewith, are provided herein. At least one apparatus or system may comprise a first waveguide; an optical system; and a diffraction grating. The first waveguide may be for guiding light from a light source to an output port of the first waveguide. The optical system may comprise at least a first reflecting surface and a second reflecting surface. The first reflecting surface may be arranged to reflect light from the output port of the first waveguide to the second reflecting surface. The second reflecting surface may be arranged to reflect light from the first reflecting surface back through the first reflecting surface to the diffraction grating. The diffraction grating may diffract light from the second reflecting surface in several lights/colors of non-zero diffraction orders in a first direction.Type: GrantFiled: January 10, 2018Date of Patent: June 16, 2020Assignee: Canon U.S.A., Inc.Inventors: Tzu-Yu Wu, Mitsuhiro Ikuta, Seiji Takeuchi, Naoki Kohara, Osamu Koyama
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Publication number: 20190374092Abstract: A Spectrally Encoded Forward View or Multi-View Endoscope, Probe, and Imaging Apparatus and system, and methods and storage mediums for use therewith, are provided herein. At least one apparatus or system may comprise a first waveguide; an optical system; and a diffraction grating. The first waveguide may be for guiding light from a light source to an output port of the first waveguide. The optical system may comprise at least a first reflecting surface and a second reflecting surface. The first reflecting surface may be arranged to reflect light from the output port of the first waveguide to the second reflecting surface. The second reflecting surface may be arranged to reflect light from the first reflecting surface back through the first reflecting surface to the diffraction grating. The diffraction grating may diffract light from the second reflecting surface in several lights/colors of non-zero diffraction orders in a first direction.Type: ApplicationFiled: January 10, 2018Publication date: December 12, 2019Inventors: Tzu-Yu Wu, Mitsuhiro Ikuta, Seiji Takeuchi, Naoki Kohara, Osamu Koyama
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Publication number: 20190162977Abstract: Image acquisition apparatuses, spectral apparatuses, methods and storage mediums for use with same are provided herein. At least one apparatus includes: a diffraction element irradiated by a light; a fiber for receiving reflected scattered light from a subject; a diffraction grating dispersing the transmitted light into light fluxes of wavelength bands again; an optical system imaging the split light fluxes; and an imaging device near the focal point of the optical system. An image is changed by rotating the diffraction grating, from which a two-dimensional image is acquired. The transmitted light may be branched into two or more, and input to a collimator lens and imaged as multiple spectral sequences by the optical system. At least one apparatus may form light fluxes traveling at different angles; and may acquire spectral information of the reflected and scattered light. Preferably, for the luminous fluxes, no gap exists in an image.Type: ApplicationFiled: November 27, 2017Publication date: May 30, 2019Inventors: Osamu Koyama, Akira Yamamoto, Naoki Kohara
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Patent number: 10302487Abstract: A noise reduction apparatus includes a first delaying/combining unit configured to output first and second pulse light beams, and a second delaying/combining unit configured to branch the first pulse light beam into two pulse light beams to output third and fourth pulse light beams and branch the second pulse light beam into two pulse light beams to output fifth and sixth pulse light beams.Type: GrantFiled: October 3, 2018Date of Patent: May 28, 2019Assignee: CANON KABUSHIKI KAISHAInventor: Naoki Kohara
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Publication number: 20190033131Abstract: A noise reduction apparatus includes a first delaying/combining unit configured to output first and second pulse light beams, and a second delaying/combining unit configured to branch the first pulse light beam into two pulse light beams to output third and fourth pulse light beams and branch the second pulse light beam into two pulse light beams to output fifth and sixth pulse light beams.Type: ApplicationFiled: October 3, 2018Publication date: January 31, 2019Inventor: Naoki Kohara
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Patent number: 10132681Abstract: A noise reduction apparatus includes a first delaying/combining unit configured to output first and second pulse light beams, and a second delaying/combining unit configured to branch the first pulse light beam into two pulse light beams to output third and fourth pulse light beams and branch the second pulse light beam into two pulse light beams to output fifth and sixth pulse light beams.Type: GrantFiled: November 27, 2017Date of Patent: November 20, 2018Assignee: Canon Kabushiki KaishaInventor: Naoki Kohara
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Publication number: 20180149520Abstract: A noise reduction apparatus includes a first delaying/combining unit configured to output first and second pulse light beams, and a second delaying/combining unit configured to branch the first pulse light beam into two pulse light beams to output third and fourth pulse light beams and branch the second pulse light beam into two pulse light beams to output fifth and sixth pulse light beams.Type: ApplicationFiled: November 27, 2017Publication date: May 31, 2018Inventor: Naoki Kohara
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Patent number: 9816932Abstract: A pulsed light synchronizer synchronizes a first pulsed light having a first period and a second pulsed light and having a second period equal to the first period with each other. A third pulsed light is acquired by providing a first delay time between two pulsed lights acquired by dividing the first pulsed light, and by multiplexing the pulsed lights acquired from the first pulsed light. A fourth pulsed light is acquired by providing a second delay time between two pulsed lights acquired by dividing the second pulsed light, and by multiplexing the pulsed lights acquired from the second pulsed light. The pulsed light synchronizer detects, through a detector, a pulsed light acquired by multiplexing the third and fourth pulsed lights, and adjusts at least one of the first and second periods based on a timing difference between the third and fourth pulsed lights acquired from the detector.Type: GrantFiled: August 13, 2015Date of Patent: November 14, 2017Assignee: CANON KABUSHIKI KAISHAInventor: Naoki Kohara
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Publication number: 20170184504Abstract: A pulsed light synchronizer synchronizes a first pulsed light having a first period and a second pulsed light and having a second period equal to the first period with each other. A third pulsed light is acquired by providing a first delay time between two pulsed lights acquired by dividing the first pulsed light, and by multiplexing the pulsed lights acquired from the first pulsed light. A fourth pulsed light is acquired by providing a second delay time between two pulsed lights acquired by dividing the second pulsed light, and by multiplexing the pulsed lights acquired from the second pulsed light. The pulsed light synchronizer detects, through a detector, a pulsed light acquired by multiplexing the third and fourth pulsed lights, and adjusts at least one of the first and second periods based on a timing difference between the third and fourth pulsed lights acquired from the detector.Type: ApplicationFiled: August 13, 2015Publication date: June 29, 2017Inventor: Naoki KOHARA
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Publication number: 20170153432Abstract: A scanning microscope includes a scanning unit that causes irradiation light emitted by a light source to scan a sample, an optical system that guides the emitted light that has passed through the scanning unit to the sample, an isolation unit that includes a transmissive portion that enables the irradiation light to pass the transmissive portion and a reflective portion that reflects at least some of light that is included in emitted light generated from the sample as a result of the irradiation light being radiated to the sample and that has passed through the optical system and the scanning unit, and a detection unit that detects the emitted light that has passed through the isolation unit. The isolation unit is disposed in an optical path of the irradiation light between the light source and the scanning unit.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Inventors: Naoki Kohara, Akira Yamamoto
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Patent number: 9107637Abstract: There is provided an X-ray imaging apparatus which images a specimen. The X-ray imaging apparatus comprises: an X-ray source; a diffraction grating configured to diffract an X-ray from the X-ray source; an X-ray detector configured to detect the X-ray diffracted by the diffraction grating; and a calculator configured to calculate phase information of the specimen on the basis of an intensity distribution of the X-ray detected by the X-ray detector, wherein the calculator obtains a spatial frequency spectrum from the plural intensity distributions, and calculates the phase information from the obtained spatial frequency spectrum.Type: GrantFiled: January 21, 2011Date of Patent: August 18, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Chidane Ouchi, Naoki Kohara
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Patent number: 8831174Abstract: There is provided an X-ray imaging method for reducing unnecessary components caused by a transmittance distribution of an object and unevenness in irradiation by a light source and accurately calculating a differential phase at the time of X-ray imaging by SDG.Type: GrantFiled: January 31, 2011Date of Patent: September 9, 2014Assignee: Canon Kabushiki KaishaInventors: Naoki Kohara, Hidenosuke Itoh
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Patent number: 8520217Abstract: A Talbot interferometer includes a diffraction grating, an image pickup device, a moving unit configured to move at least one of the diffraction grating and the image pickup device in an optical axis direction of the test object, and a computer configured to adjust a position of the at least one of the diffraction grating and the image pickup device using the moving unit so that a Talbot condition can be met, based on a spatial frequency spectrum obtained from a plurality of interference fringes captured by the image pickup device while moving the at least one of the diffraction grating and the image pickup device using the moving unit.Type: GrantFiled: April 22, 2010Date of Patent: August 27, 2013Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Naoi, Seima Kato, Naoki Kohara, Chidane Ouchi
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Publication number: 20120281217Abstract: There is provided an X-ray imaging apparatus which images a specimen. The X-ray imaging apparatus comprises: an X-ray source; a diffraction grating configured to diffract an X-ray from the X-ray source; an X-ray detector configured to detect the X-ray diffracted by the diffraction grating; and a calculator configured to calculate phase information of the specimen on the basis of an intensity distribution of the X-ray detected by the X-ray detector, wherein the calculator obtains a spatial frequency spectrum from the plural intensity distributions, and calculates the phase information from the obtained spatial frequency spectrum.Type: ApplicationFiled: January 21, 2011Publication date: November 8, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Chidane Ouchi, Naoki Kohara