Patents by Inventor Yoshiyuki Ohtake
Yoshiyuki Ohtake 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: 20230317309Abstract: A quantum simulator includes a chamber, a light beam generation apparatus, and a photodetector. The light beam generation apparatus includes a light source, an optical mask, a spatial light modulator, and a lens. The optical mask includes an inner region having a rectangular shape with a side parallel to a first direction or a second direction, and an outer region surrounding the inner region. When an xy coordinate system including an x axis parallel to the first direction and a y axis parallel to the second direction is set on an image plane, the light beam generation apparatus forms and regularly arranges focusing spots such that a minimum value of a difference between x coordinate values and a minimum value of a difference between y coordinate values of center positions of the focusing spots are longer than a non-overlapping distance.Type: ApplicationFiled: August 24, 2021Publication date: October 5, 2023Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCESInventors: Hiroto SAKAI, Kenji OHMORI, Taro ANDO, Sylvain DE LÉSÉLEUC, Takafumi TOMITA, Seiji SUGAWA, Yoshiyuki OHTAKE, Haruyoshi TOYODA
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Publication number: 20230281498Abstract: A quantum simulator includes a chamber, a light beam generation apparatus, and a photodetector. The light beam generation apparatus includes a light source, a spatial light modulator, and a lens. Each of pixels of the spatial light modulator has a rectangular shape with a side parallel to a first direction or a second direction, and the pixels are arranged at regular intervals along the first direction and the second direction. When an xy coordinate system including an x axis parallel to the first direction and a y axis parallel to the second direction is set on an image plane, the light beam generation apparatus forms and regularly arranges focusing spots such that a minimum value of a difference between x coordinate values and a minimum value of a difference between y coordinate values of center positions of the focusing spots are longer than a non-overlapping distance.Type: ApplicationFiled: August 24, 2021Publication date: September 7, 2023Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCESInventors: Hiroto SAKAI, Kenji OHMORI, Taro ANDO, Sylvain DE LÉSÉLEUC, Takafumi TOMITA, Seiji SUGAWA, Yoshiyuki OHTAKE, Haruyoshi TOYODA
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Publication number: 20230101292Abstract: A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.Type: ApplicationFiled: December 7, 2022Publication date: March 30, 2023Applicant: Hamamatsu Photonics K.K.Inventors: Hiroto SAKAI, Taro ANDO, Haruyoshi TOYODA, Yoshiyuki OHTAKE, Yuu TAKIGUCHI, Tomoko HYODO
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Patent number: 11567732Abstract: A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.Type: GrantFiled: March 26, 2018Date of Patent: January 31, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hiroto Sakai, Taro Ando, Haruyoshi Toyoda, Yoshiyuki Ohtake, Yuu Takiguchi, Tomoko Hyodo
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Patent number: 11567450Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.Type: GrantFiled: September 23, 2020Date of Patent: January 31, 2023Assignees: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATIONInventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
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Patent number: 11300800Abstract: A pseudo speckle pattern generation apparatus includes a first spatial light modulator, a first lens, a second spatial light modulator, a second lens and the like. The first spatial light modulator has a first intensity modulation distribution based on a pseudo random number pattern, and spatially modulates intensity of light output from a light source and increased in beam diameter by a beam expander. The second spatial light modulator has a second intensity modulation distribution based on a filter function, is provided on a plane where a Fourier transformed pattern is generated by the first lens, and spatially modulates intensity of the light reached through the first lens. The second lens optically Fourier transforms a pattern of the light output from the second spatial light modulator to generate a Fourier transformed pattern as a pseudo speckle pattern.Type: GrantFiled: March 26, 2018Date of Patent: April 12, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hiroto Sakai, Taro Ando, Haruyoshi Toyoda, Yoshiyuki Ohtake, Yuu Takiguchi, Tomoko Hyodo
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Publication number: 20210011430Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.Type: ApplicationFiled: September 23, 2020Publication date: January 14, 2021Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCESInventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
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Patent number: 10824114Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modultor based on a two-dimensional pseudo random number pattern.Type: GrantFiled: April 4, 2018Date of Patent: November 3, 2020Assignees: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL SCIENCESInventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
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Publication number: 20200117018Abstract: A pseudo speckle pattern generation apparatus includes a first spatial light modulator, a first lens, a second spatial light modulator, a second lens and the like. The first spatial light modulator has a first intensity modulation distribution based on a pseudo random number pattern, and spatially modulates intensity of light output from a light source and increased in beam diameter by a beam expander. The second spatial light modulator has a second intensity modulation distribution based on a filter function, is provided on a plane where a Fourier transformed pattern is generated by the first lens, and spatially modulates intensity of the light reached through the first lens. The second lens optically Fourier transforms a pattern of the light output from the second spatial light modulator to generate a Fourier transformed pattern as a pseudo speckle pattern.Type: ApplicationFiled: March 26, 2018Publication date: April 16, 2020Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hiroto SAKAI, Taro ANDO, Haruyoshi TOYODA, Yoshiyuki OHTAKE, Yuu TAKIGUCHI, Tomoko HYODO
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Publication number: 20200041810Abstract: A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.Type: ApplicationFiled: March 26, 2018Publication date: February 6, 2020Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hiroto SAKAI, Taro ANDO, Haruyoshi TOYODA, Yoshiyuki OHTAKE, Yuu TAKIGUCHI, Tomoko HYODO
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Publication number: 20180292786Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modultor based on a two-dimensional pseudo random number pattern.Type: ApplicationFiled: April 4, 2018Publication date: October 11, 2018Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCESInventors: Hiroto SAKAI, Kenji OHMORI, Taro ANDO, Nobuyuki TAKEI, Haruyoshi TOYODA, Yoshiyuki OHTAKE, Tomoko HYODO, Yuu TAKIGUCHI
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Publication number: 20180161923Abstract: In the control of light condensing irradiation of laser light using a spatial light modulator, the number of wavelengths of the laser light, a value of each wavelength, and incident conditions of the laser light are acquired (step S101), the number of light condensing points, and a light condensing position, a wavelength, and a light condensing intensity on each light condensing point are set (S104), and a light condensing control pattern to be provided for the laser light is set for each light condensing point (S107). Then, a modulation pattern to be presented in the spatial light modulator is designed in consideration of the light condensing control pattern (S108). Further, in the design of a modulation pattern, a design method focusing on an effect by a phase value of one pixel is used, and when evaluating a light condensing state on the light condensing point, a propagation function to which a phase pattern opposite to the light condensing control pattern is added is used.Type: ApplicationFiled: December 28, 2017Publication date: June 14, 2018Inventors: Naoya Matsumoto, Yuu Takiguchi, Taro Ando, Yoshiyuki Ohtake, Takashi Inoue, Tomoko Otsu, Haruyoshi Toyoda
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Patent number: 9965867Abstract: A micro object control apparatus for controlling motion of a micro object within a medium includes a light source, an optical vortex generation unit, an objective lens, an imaging unit, an analysis unit, and a movement unit. The analysis unit acquires first motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a first position, acquires second motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a second position, and evaluates a state of an optical trap of the micro object with the optical vortex by comparing the first motion information and the second motion information.Type: GrantFiled: October 2, 2014Date of Patent: May 8, 2018Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tomoko Otsu, Taro Ando, Hiroyasu Itoh, Haruyoshi Toyoda, Yoshiyuki Ohtake, Yuu Takiguchi
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Publication number: 20160247291Abstract: A micro object control apparatus for controlling motion of a micro object within a medium includes a light source, an optical vortex generation unit, an objective lens, an imaging unit, an analysis unit, and a movement unit. The analysis unit acquires first motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a first position, acquires second motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a second position, and evaluates a state of an optical trap of the micro object with the optical vortex by comparing the first motion information and the second motion information.Type: ApplicationFiled: October 2, 2014Publication date: August 25, 2016Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomoko OTSU, Taro ANDO, Hiroyasu ITOH, Haruyoshi TOYODA, Yoshiyuki OHTAKE, Yuu TAKIGUCHI
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Patent number: 9001411Abstract: A light control device 1 includes a light source 10, a prism 20, a spatial light modulator 30, a drive unit 31, a control unit 32, a lens 41, an aperture 42, and a lens 43. The spatial light modulator 30 is a phase modulating spatial light modulator, includes a plurality of two-dimensionally arrayed pixels, is capable of phase modulation in each of these pixels in a range of 4? or more, and presents a phase pattern to modulate the phase of light in each of the pixels. This phase pattern is produced by superimposing a blazed grating pattern for light diffraction and a phase pattern having a predetermined phase modulation distribution, and with a phase modulation range of 2? or more.Type: GrantFiled: April 26, 2013Date of Patent: April 7, 2015Assignee: Hamamatsu Photonics K.K.Inventors: Naoya Matsumoto, Taro Ando, Takashi Inoue, Yoshiyuki Ohtake
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Publication number: 20140307299Abstract: In the control of light condensing irradiation of laser light using a spatial light modulator, the number of wavelengths, a value of each wavelength, and incident conditions of the laser light are acquired, the number of light condensing points, and a light condensing position, a wavelength, and a light condensing intensity on each light condensing point are set, and a light condensing control pattern is set for each light condensing point. Then, a modulation pattern presented in the spatial light modulator is designed in consideration of the light condensing control pattern. Further, in the design of a modulation pattern, a design method focusing on an effect by a phase value of one pixel is used, and when evaluating a light condensing state, a propagation function to which a phase pattern opposite to the light condensing control pattern is added is used.Type: ApplicationFiled: October 23, 2012Publication date: October 16, 2014Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Naoya Matsumoto, Yuu Takiguchi, Taro Ando, Yoshiyuki Ohtake, Takashi Inoue, Tomoko Otsu, Haruyoshi Toyoda
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Publication number: 20140293388Abstract: In the control of light condensing irradiation of laser light using a spatial light modulator, the number of wavelengths, a value of each wavelength, and incident conditions of the laser light are acquired, the number of light condensing points, and a light condensing position, a wavelength, and a light condensing intensity on each light condensing point are set, and a distortion phase pattern provided in an optical system including the spatial light modulator to the laser light is derived. Then, a modulation pattern presented in the spatial light modulator is designed in consideration of the distortion phase pattern. Further, in the design of a modulation pattern, a design method focusing on an effect by a phase value of one pixel is used, and when evaluating a light condensing state, a propagation function to which a distortion phase pattern is added is used.Type: ApplicationFiled: October 23, 2012Publication date: October 2, 2014Inventors: Naoya Matsumoto, Yuu Takiguchi, Taro Ando, Yoshiyuki Ohtake, Takashi Inoue, Tomoko Otsu, Haruyoshi Toyoda
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Patent number: 8610993Abstract: A light control device 1 includes a light source 10, a prism 20, a spatial light modulator 30, a drive unit 31, a control unit 32, a lens 41, an aperture 42, and a lens 43. The spatial light modulator 30 is a phase modulating spatial light modulator, includes a plurality of two-dimensionally arrayed pixels, is capable of phase modulation in each of these pixels in a range of 4?, and presents a phase pattern to modulate the phase of light in each of the pixels. This phase pattern is produced by superimposing a blazed grating pattern for light diffraction with a phase modulation range of 2? or less and a phase pattern having a predetermined phase modulation distribution with a phase modulation range of 2? or less.Type: GrantFiled: December 24, 2009Date of Patent: December 17, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Naoya Matsumoto, Taro Ando, Takashi Inoue, Yoshiyuki Ohtake
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Patent number: 8553733Abstract: A light source device 1 includes a laser light source 10 and an optical phase modulator 15 or the like. The optical phase modulator 15 inputs coherent light output from the laser light source 10 and transmitted through a beam splitter 14, phase-modulates the light according to the position on a beam cross section of the light, and outputs the phase-modulated light to the beam splitter 14. When (p+1) areas sectioned by p circumferences centered on a predetermined position are set on a beam cross section of light input to the optical phase modulator 15, the more outside each of the (p+1) areas is, the wider the radial width of the area, the amount of phase modulation is constant in each of the (p+1) areas, and the amounts of phase modulation differ by ? between two adjacent areas out of the (p+1) areas.Type: GrantFiled: February 21, 2008Date of Patent: October 8, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Taro Ando, Yoshiyuki Ohtake, Naoya Matsumoto, Takashi Inoue, Haruyoshi Toyoda, Norihiro Fukuchi
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Publication number: 20130242373Abstract: A light control device 1 includes a light source 10, a prism 20, a spatial light modulator 30, a drive unit 31, a control unit 32, a lens 41, an aperture 42, and a lens 43. The spatial light modulator 30 is a phase modulating spatial light modulator, includes a plurality of two-dimensionally arrayed pixels, is capable of phase modulation in each of these pixels in a range of 4? or more, and presents a phase pattern to modulate the phase of light in each of the pixels. This phase pattern is produced by superimposing a blazed grating pattern for light diffraction and a phase pattern having a predetermined phase modulation distribution, and with a phase modulation range of 2? or more.Type: ApplicationFiled: April 26, 2013Publication date: September 19, 2013Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Naoya MATSUMOTO, Taro ANDO, Takashi INOUE, Yoshiyuki OHTAKE