Patents by Inventor Yuu Takiguchi
Yuu Takiguchi 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: 11966035Abstract: A light sheet microscope includes an irradiation optical system, a detection optical system, and a photodetector. The irradiation optical system includes a wavelength sweep light source which outputs light of which a wavelength changes with time as excitation light, a spectroscopic element on which the excitation light output from the wavelength sweep light source is incident and which emits the excitation light at an emission angle corresponding to a wavelength of the excitation light, a relay optical system which includes a cylindrical lens on which the excitation light emitted from the spectroscopic element is incident at an incident angle corresponding to the emission angle, and a first objective lens which condenses the excitation light guided by the relay optical system and irradiates the sample with the excitation light having a sheet shape.Type: GrantFiled: December 26, 2018Date of Patent: April 23, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yuu Takiguchi, Rumika Tanaka, Hisayoshi Takamoto
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Patent number: 11942751Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.Type: GrantFiled: September 29, 2021Date of Patent: March 26, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Kurita, Ryo Yoshimura, Ryo Makino, Yuu Takiguchi
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Patent number: 11923655Abstract: The present embodiment relates to a light emission device capable of removing zero-order light from output light of an S-iPM laser. The light emission device comprises an active layer and a phase modulation layer. The phase modulation layer includes a base layer and a plurality of modified refractive index regions. In a state in which a virtual square lattice is set on the phase modulation layer, a center of gravity of each modified refractive index region is separated from a corresponding lattice point, and a rotation angle around each lattice point that decides a position of the center of gravity of each modified refractive index region is set according to a phase distribution for forming an optical image. A lattice spacing and an emission wavelength satisfy a condition of M-point oscillation in a reciprocal lattice space of the phase modulation layer.Type: GrantFiled: August 27, 2019Date of Patent: March 5, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kazuyoshi Hirose, Yuu Takiguchi, Takahiro Sugiyama, Yoshitaka Kurosaka
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Publication number: 20240030672Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.Type: ApplicationFiled: September 29, 2021Publication date: January 25, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Ryo YOSHIMURA, Ryo MAKINO, Yuu TAKIGUCHI
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Patent number: 11870218Abstract: A light emission device of one embodiment reduces zero-order light included in output of an S-iPM laser. The light emission device includes a light emission unit and a phase modulation layer. The phase modulation layer has a base layer and modified refractive index regions each including modified refractive index elements. In each unit constituent region centered on a lattice point of an imaginary square lattice set on the phase modulation layer, the distance from the corresponding lattice point to each of the centers of gravity of the modified refractive index elements is greater than 0.30 times and is not greater than 0.50 times of the lattice spacing. In addition, the distance from the corresponding lattice point to the center of gravity of the modified refractive index elements as a whole is greater than 0 and is not greater than 0.30 times of the lattice spacing.Type: GrantFiled: June 4, 2019Date of Patent: January 9, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kazuyoshi Hirose, Takahiro Sugiyama, Yuu Takiguchi, Yoshiro Nomoto, Soh Uenoyama
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Patent number: 11822054Abstract: The present disclosure relates to a metasurface structural body or the like having a structure for achieving desired optical characteristics. The metasurface structural body includes a base member having a first surface and a second surface opposing each other, and a plurality of antennas as a plurality of fine structures arranged along the first surface. The base member has a base portion and an adjacent portion. The antennas each has a first refractive index and an antenna end surface constituting a part of the first surface. The adjacent portion is provided such that a part thereof is positioned between the antennas, the adjacent portion having a second refractive index different from the first refractive index and an adjacent-portion end surface constituting a remaining part of the first surface. The antenna end surfaces and the adjacent-portion end surface form a flat surface as the first surface.Type: GrantFiled: April 11, 2019Date of Patent: November 21, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Soh Uenoyama, Yuu Takiguchi
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Patent number: 11777276Abstract: The present embodiment relates to a single semiconductor light-emitting element including a plurality of light-emitting portions each of which is capable of generating light of a desired beam projection pattern and a method for manufacturing the semiconductor light-emitting element. In the semiconductor light-emitting element, an active layer and a phase modulation layer are formed on a common substrate layer, and the phase modulation layer includes at least a plurality of phase modulation regions arranged along the common substrate layer. The plurality of phase modulation regions are obtained by separating the phase modulation layer into a plurality of places after manufacturing the phase modulation layer, and as a result, the semiconductor light-emitting element provided with a plurality of light-emitting portions that have been accurately aligned can be obtained through a simple manufacturing process as compared with the related art.Type: GrantFiled: May 20, 2022Date of Patent: October 3, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takahiro Sugiyama, Yuu Takiguchi, Yoshitaka Kurosaka, Kazuyoshi Hirose, Yoshiro Nomoto, Soh Uenoyama
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Patent number: 11686956Abstract: The present embodiment relates to a light-emitting device that enables reduction in attenuation or diffraction effect caused by a semiconductor light-emitting device with respect to modulated light outputted from a spatial light modulator, and the light-emitting device includes the semiconductor light-emitting device that outputs light from a light output surface and the reflection type spatial light modulator that modulates the light. The spatial light modulator includes a light input/output surface having the area larger than the area of a light input surface of the semiconductor light-emitting device, modulates light taken through a region facing the light output surface of the semiconductor light-emitting device in the light input/output surface, and outputs the modulated light from another region of the light input/output surface to a space other than the light input surface of the semiconductor light-emitting device.Type: GrantFiled: June 13, 2018Date of Patent: June 27, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yuu Takiguchi, Kazuyoshi Hirose, Yoshitaka Kurosaka, Takahiro Sugiyama, Yoshiro Nomoto, Soh Uenoyama
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Publication number: 20230198224Abstract: An optical device of one embodiment outputs light in a short-wavelength range such as a visible range. The optical device includes a UC layer, first and second light-confinement layers, and a resonance mode forming layer. The UC layer contains an upconversion material receiving excitation light in a first wavelength range and outputting light in a second wavelength range. The first light-confinement layer has a characteristic of reflecting part of the second wavelength-range light. The second light-confinement layer has a characteristic of reflecting part of the second wavelength-range light and transmitting the remainder, and is disposed such that the UC layer locates between the first and second light-confinement layers. The resonance mode forming layer locates between the UC layer and the first or second light-confinement layer, includes a base layer and plural modified refractive index regions, and forms a resonance mode of the second wavelength-range light.Type: ApplicationFiled: May 27, 2021Publication date: June 22, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshitaka KUROSAKA, Kazuyoshi HIROSE, Yuu TAKIGUCHI, Akio ITO, Tadataka EDAMURA, Takahiko YAMANAKA, Shigeo HARA
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Publication number: 20230185238Abstract: A laser processing apparatus includes a spatial light modulator for inputting laser light output from a laser light source and outputting laser light after phase modulation by a hologram, and a control unit for presenting, on the spatial light modulator, the hologram for focusing the laser light after the phase modulation output from the spatial light modulator on a plurality of irradiation points in a processing object by a focusing optical system. The control unit sets at least one of a shape and a size of a processing region defined by the irradiation points in a first plane intersecting an optical axis of the laser light and a processing region defined by the irradiation points in a second plane intersecting the optical axis and separated from the first plane in a direction of the optical axis to be different from each other.Type: ApplicationFiled: February 17, 2021Publication date: June 15, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Yuu TAKIGUCHI
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Publication number: 20230143460Abstract: A laser processing apparatus includes a spatial light modulator for inputting laser light output from a laser light source and outputting laser light after phase modulation by a hologram, and a control unit for presenting, on the spatial light modulator, the hologram for focusing the laser light after the phase modulation output from the spatial light modulator on a plurality of irradiation points in a processing object by a focusing optical system. The control unit controls light intensities of at least two irradiation points included in the plurality of irradiation points independently of each other.Type: ApplicationFiled: February 17, 2021Publication date: May 11, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Yuu TAKIGUCHI
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Patent number: 11646546Abstract: The present embodiment relates to a single semiconductor light-emitting element including a plurality of light-emitting portions each of which is capable of generating light of a desired beam projection pattern and a method for manufacturing the semiconductor light-emitting element. In the semiconductor light-emitting element, an active layer and a phase modulation layer are formed on a common substrate layer, and the phase modulation layer includes at least a plurality of phase modulation regions arranged along the common substrate layer. The plurality of phase modulation regions are obtained by separating the phase modulation layer into a plurality of places after manufacturing the phase modulation layer, and as a result, the semiconductor light-emitting element provided with a plurality of light-emitting portions that have been accurately aligned can be obtained through a simple manufacturing process as compared with the related art.Type: GrantFiled: June 6, 2019Date of Patent: May 9, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takahiro Sugiyama, Yuu Takiguchi, Yoshitaka Kurosaka, Kazuyoshi Hirose, Yoshiro Nomoto, Soh Uenoyama
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Patent number: 11637409Abstract: A semiconductor light-emitting module according to the present embodiment includes a plurality of semiconductor light-emitting elements each outputting light of a desired beam projection pattern; and a support substrate holding the plurality of semiconductor light-emitting elements. Each of the plurality of semiconductor light-emitting elements includes a phase modulation layer configured to form a target beam projection pattern in a target beam projection region. The plurality of semiconductor light-emitting elements include first and second semiconductor light-emitting elements that are different in terms of at least any of a beam projection direction, the target beam projection pattern, and a light emission wavelength.Type: GrantFiled: June 5, 2019Date of Patent: April 25, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takahiro Sugiyama, Yuu Takiguchi, Yoshitaka Kurosaka, Kazuyoshi Hirose, Yoshiro Nomoto, Soh Uenoyama
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Patent number: 11626709Abstract: The embodiment relates to a light-emitting device in which a positional relationship between a modified refractive index region's gravity-center position and the associated lattice point differs from a conventional device, and a production method. In this device, a stacked body including a light-emitting portion and a phase modulation layer optically coupled to the light-emitting portion is on a substrate. The phase modulation layer includes a base layer and plural modified refractive index regions in the base layer. Each modified refractive index region's gravity-center position locates on a virtual straight line passing through a corresponding reference lattice point among lattice points of a virtual square lattice on the base layer's design plane. A distance between the reference lattice point and the modified refractive index region's gravity center along the virtual straight line is individually set such that this device outputs light forming an optical image.Type: GrantFiled: November 28, 2018Date of Patent: April 11, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kazuyoshi Hirose, Yoshitaka Kurosaka, Yuu Takiguchi, Takahiro Sugiyama
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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: 11502481Abstract: A semiconductor light-emitting module according to the present embodiment includes a plurality of semiconductor light-emitting elements each outputting light of a desired beam projection pattern; and a support substrate holding the plurality of semiconductor light-emitting elements. Each of the plurality of semiconductor light-emitting elements includes a phase modulation layer configured to form a target beam projection pattern in a target beam projection region. The plurality of semiconductor light-emitting elements include first and second semiconductor light-emitting elements that are different in terms of at least any of a beam projection direction, the target beam projection pattern, and a light emission wavelength.Type: GrantFiled: June 5, 2019Date of Patent: November 15, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takahiro Sugiyama, Yuu Takiguchi, Yoshitaka Kurosaka, Kazuyoshi Hirose, Yoshiro Nomoto, Soh Uenoyama
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Publication number: 20220278505Abstract: The present embodiment relates to a single semiconductor light-emitting element including a plurality of light-emitting portions each of which is capable of generating light of a desired beam projection pattern and a method for manufacturing the semiconductor light-emitting element. In the semiconductor light-emitting element, an active layer and a phase modulation layer are formed on a common substrate layer, and the phase modulation layer includes at least a plurality of phase modulation regions arranged along the common substrate layer. The plurality of phase modulation regions are obtained by separating the phase modulation layer into a plurality of places after manufacturing the phase modulation layer, and as a result, the semiconductor light-emitting element provided with a plurality of light-emitting portions that have been accurately aligned can be obtained through a simple manufacturing process as compared with the related art.Type: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takahiro SUGIYAMA, Yuu TAKIGUCHI, Yoshitaka KUROSAKA, Kazuyoshi HIROSE, Yoshiro NOMOTO, Soh UENOYAMA
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Patent number: 11391774Abstract: The present disclosure relates to a metalens unit including a metalens having a structure for reducing a thickness. The metalens unit includes a metalens and a holding portion for the metalens. The metalens includes a base portion and a first antenna portion. The first antenna portion is constituted by a plurality of first antennas each having a first refractive index and a first intermediate portion having a second refractive index and positioned between the plurality of first antennas. A first antenna portion is formed such that one-dimensional arrangement constituted by some of end surfaces of the plurality of first antennas includes a pattern in which at least one of a size of the end surface, a shape of the end surface, and an arrangement pitch is changed along a reference line.Type: GrantFiled: April 11, 2019Date of Patent: July 19, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Soh Uenoyama, Yuu Takiguchi, Hirotoshi Terada