Patents by Inventor Haruyoshi Toyoda
Haruyoshi Toyoda 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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Patent number: 11723534Abstract: An object is to simply and easily evaluate differences in behavior of the eyes of subjects. A binocular measurement system 1 includes a photodetector 7 that detects reflected light from the right eye ER and the left eye EL of a subject, and outputs image signal of the reflected light, a feature amount calculating unit 11 that calculates a feature amount corresponding to the right eye ER and a feature amount corresponding to the left eye EL based on the image signal, and a comparison value calculating unit 13 that calculates, based on the two feature amounts, a comparison value obtained by comparing the two feature amounts.Type: GrantFiled: November 17, 2020Date of Patent: August 15, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kazutaka Suzuki, Munenori Takumi, Naotoshi Hakamata, Haruyoshi Toyoda, Yoshinori Matsui
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Patent number: 11619480Abstract: A plurality of pixels are arranged two-dimensionally in a matrix and individually include a first photosensitive portion and a second photosensitive portion. A plurality of first wirings connect a plurality of first photosensitive portions to each other for every row. A plurality of second wirings connect a plurality of second photosensitive portions to each other for every column. A first reading unit 21 is arranged to read signal data through at least some of the plurality of first wirings. A second reading unit 31 is arranged to read signal data through at least some of the plurality of second wirings. The first reading unit 21 has a reading pixel setting unit 26 arranged to set, based on signal data read in the first frame, a pixel group for reading signal data in a second frame subsequent to a first frame from the plurality of pixels.Type: GrantFiled: June 1, 2022Date of Patent: April 4, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yoshinori Matsui, Yukinobu Sugiyama, Munenori Takumi, Haruyoshi Toyoda, Kazutaka Suzuki, Kazuhiro Nakamura, Keisuke Uchida
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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: 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: 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: 11550172Abstract: A reflective spatial light modulator includes an electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a light input/output unit being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a light reflection unit including a substrate including a plurality of second electrodes and an adhesive layer for fixing the substrate to the rear surface and being disposed on the rear surface of the electro-optic crystal, and a drive circuit applying an electric field between the first electrode and the plurality of second electrodes.Type: GrantFiled: December 5, 2017Date of Patent: January 10, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kuniharu Takizawa, Hiroshi Tanaka, Haruyoshi Toyoda, Yasushi Ohbayashi, Hiroto Sakai, Tsubasa Watanabe
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Publication number: 20220290972Abstract: A plurality of pixels are arranged two-dimensionally in a matrix and individually include a first photosensitive portion and a second photosensitive portion. A plurality of first wirings connect a plurality of first photosensitive portions to each other for every row. A plurality of second wirings connect a plurality of second photosensitive portions to each other for every column. A first reading unit 21 is arranged to read signal data through at least some of the plurality of first wirings. A second reading unit 31 is arranged to read signal data through at least some of the plurality of second wirings. The first reading unit 21 has a reading pixel setting unit 26 arranged to set, based on signal data read in the first frame, a pixel group for reading signal data in a second frame subsequent to a first frame from the plurality of pixels.Type: ApplicationFiled: June 1, 2022Publication date: September 15, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshinori MATSUI, Yukinobu SUGIYAMA, Munenori TAKUMI, Haruyoshi TOYODA, Kazutaka SUZUKI, Kazuhiro NAKAMURA, Keisuke UCHIDA
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Patent number: 11405573Abstract: A light detection device detects an incident position of light. The plurality of pixels are arranged two-dimensionally in a matrix and individually have a first photosensitive portion and a second photosensitive portion. The first circuit connects a plurality of first photosensitive portions to each other for every row. The second circuit connects a plurality of second photosensitive portions to each other for every column. The first reading unit reads signal data through the first circuit. The second reading unit reads signal data through the second circuit. The first circuit includes row switches arranged to switch electrical connection and disconnection between first photosensitive portions adjacent to each other in the same row.Type: GrantFiled: December 25, 2018Date of Patent: August 2, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yoshinori Matsui, Munenori Takumi, Haruyoshi Toyoda, Kazutaka Suzuki, Kazuhiro Nakamura
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Patent number: 11391970Abstract: A reflective spatial light modulator includes an electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a light input/output unit being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a light reflection unit including a substrate including a plurality of second electrodes and being disposed on the rear surface side of the electro-optic crystal, and a drive circuit applying an electric field between the first electrode and the plurality of second electrodes. The light input/output unit includes a first charge injection curbing layer formed on the input surface, and the light reflection unit includes a second charge injection curbing layer formed on the rear surface.Type: GrantFiled: December 5, 2017Date of Patent: July 19, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kuniharu Takizawa, Hiroshi Tanaka, Haruyoshi Toyoda, Yasushi Ohbayashi, Hiroto Sakai, Tsubasa Watanabe
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Patent number: 11378382Abstract: A plurality of pixels are arranged two-dimensionally in a matrix and individually include a first photosensitive portion and a second photosensitive portion. A plurality of first wirings connect a plurality of first photosensitive portions to each other for every row. A plurality of second wirings connect a plurality of second photosensitive portions to each other for every column. A first reading unit is arranged to read signal data through at least some of the plurality of first wirings. A second reading unit is arranged to read signal data through at least some of the plurality of second wirings. The first reading unit has a reading pixel setting unit arranged to set, based on signal data read in the first frame, a pixel group for reading signal data in a second frame subsequent to a first frame from the plurality of pixels.Type: GrantFiled: December 25, 2018Date of Patent: July 5, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yoshinori Matsui, Yukinobu Sugiyama, Munenori Takumi, Haruyoshi Toyoda, Kazutaka Suzuki, Kazuhiro Nakamura, Keisuke Uchida
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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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Patent number: 11169310Abstract: An optical element includes an electro-optic crystal having an isotropic crystal which belongs to a point group m3m of a cubic system and including an input surface to which input light is input and a rear surface which is a surface on the opposite side of the input surface; a first electrode disposed on the input surface; and a second electrode disposed on the rear surface. The input surface is located along at least one axis between axes obtained by rotating two crystal axes about one remaining crystal axis used as a rotation center at a predetermined angle in three crystal axes of the electro-optic crystal. A direction of an electric field to be induced by a voltage applied to a part between the first electrode and the second electrode is set in a propagation direction of the input light.Type: GrantFiled: June 5, 2017Date of Patent: November 9, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kuniharu Takizawa, Hiroshi Tanaka, Haruyoshi Toyoda, Yasushi Ohbayashi, Hiroto Sakai
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Patent number: 11156816Abstract: A reflective spatial light modulator includes a perovskite-type electro-optic crystal having a relative permittivity of 1,000 or higher and including an input surface to which the input light is input and a rear surface which faces the input surface; a light input and output unit disposed on the input surface of the electro-optic crystal and including a first electrode through which the input light is transmitted; a light reflecting unit including a pixel electrode portion including a plurality of second electrodes and an adhesion layer fixing the pixel electrode portion to the rear surface, is disposed on the rear surface of the electro-optic crystal, and reflects the input light toward the input and output unit; and a drive circuit for applying an electric field between the first electrode and the plurality of second electrodes. The adhesion layer includes a dielectric material in a cured material of a non-conducting adhesive material.Type: GrantFiled: June 5, 2017Date of Patent: October 26, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kuniharu Takizawa, Hiroshi Tanaka, Haruyoshi Toyoda, Yasushi Ohbayashi, Hiroto Sakai
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Patent number: 11137284Abstract: Provided is a position detection sensor. In a first pixel part, as an incident position is closer to a first end of a first pixel pair group in a second direction, an intensity of a first electric signal decreases. In a second pixel part, as the incident position is closer to the first end, an intensity of a second electric signal increases. In a third pixel part, as the incident position is closer to a second end of a second pixel pair group in a first direction, an intensity of a third electric signal decreases. In a fourth pixel part, as the incident position is closer to the second end, an intensity of a fourth electric signal increases. A calculation unit calculates a second position on the basis of the first and second electric signals, and calculates a first position on the basis of the third and fourth electric signals.Type: GrantFiled: August 21, 2018Date of Patent: October 5, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Munenori Takumi, Haruyoshi Toyoda, Yoshinori Matsui, Kazutaka Suzuki, Kazuhiro Nakamura, Keisuke Uchida
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Patent number: 11106062Abstract: A light modulator includes a perovskite-type electro-optic crystal including a first surface to which the input light is input and a second surface which faces the first surface; a first electrode which is disposed on the first surface of the electro-optic crystal and through which the input light is transmitted; a second electrode which is disposed on the second surface of the electro-optic crystal and through which the input light is transmitted; and a drive circuit for applying an electric field between the first electrode and the second electrode. The first electrode is disposed alone on the first surface. The second electrode is disposed alone on the second surface. At least one of the first electrode and the second electrode partially covers the first surface or the second surface. A propagation direction of the input light and an applying direction of the electric field are parallel to each other.Type: GrantFiled: June 5, 2017Date of Patent: August 31, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kuniharu Takizawa, Hiroshi Tanaka, Haruyoshi Toyoda, Yasushi Ohbayashi, Hiroto Sakai
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Patent number: 11085760Abstract: Provided is a shape measurement sensor including a light-receiving unit and a calculation unit. The light-receiving unit includes a plurality of pixel pairs. Each of the pixel pairs includes a first pixel and a second pixel that is disposed side by side with the first pixel along a first direction. In the first pixel, as an incident position is closer to one end of the light-receiving unit in a second direction, an intensity of a first electric signals decreases. In the second pixel, as the incident position is closer to the one end, an intensity of a second electric signal increases. The calculation unit calculates the incident position in the second direction for each of the pixel pairs on the basis of the intensity of the first electric signal and the intensity of the acquired second electric signal.Type: GrantFiled: September 19, 2018Date of Patent: August 10, 2021Assignee: HAMAMATSU PHOTONIC K.K.Inventors: Munenori Takumi, Haruyoshi Toyoda, Yoshinori Matsui, Kazutaka Suzuki, Kazuhiro Nakamura, Keisuke Uchida
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Patent number: 11079271Abstract: Provided is a position detection sensor. In a first pixel part, as an incident position is closer to a first end of a first pixel pair group in a second direction, an intensity of a first electric signal decreases. In a second pixel part, as the incident position is closer to the first end, an intensity of a second electric signal increases. In a third pixel part, as the incident position is closer to a second end of a second pixel pair group in a first direction, an intensity of a third electric signal decreases. In a fourth pixel part, as the incident position is closer to the second end, an intensity of a fourth electric signal increases. A calculation unit calculates a second position on the basis of the first and second electric signals, and calculates a first position on the basis of the third and fourth electric signals.Type: GrantFiled: August 21, 2018Date of Patent: August 3, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Munenori Takumi, Haruyoshi Toyoda, Yoshinori Matsui, Kazutaka Suzuki, Kazuhiro Nakamura, Keisuke Uchida
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Publication number: 20210191165Abstract: A light modulator includes a perovskite-type electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a first optical element being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a second optical element being disposed on the rear surface of the electro-optic crystal and having a second electrode through which the input light is transmitted, and a drive circuit applying an electric field between the first electrode and the second electrode.Type: ApplicationFiled: December 5, 2017Publication date: June 24, 2021Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Kuniharu TAKIZAWA, Hiroshi TANAKA, Haruyoshi TOYODA, Yasushi OHBAYASHI, Hiroto SAKAI, Tsubasa WATANABE