Patents Assigned to Hamamatsu Photonics, K. K.
  • Patent number: 11913836
    Abstract: A dispersion measurement apparatus includes a pulse forming unit, a correlation optical system, a beam splitter, an operation unit, an imaging unit, a spatial filter unit, and a photodetector. The pulse forming unit forms a light pulse train including light pulses having time differences and different center wavelengths. The beam splitter branches the light pulse train passed through a measurement object. The imaging unit disperses one light pulse train and images each light pulse. The spatial filter unit extracts light of a partial region of the other light pulse train. The correlation optical system outputs correlation light including a cross-correlation or an autocorrelation of the extracted light. The photodetector detects a temporal waveform of the correlation light. The operation unit estimates a wavelength dispersion amount in the measurement object based on a feature value of the temporal waveform.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: February 27, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Koyo Watanabe, Hisanari Takahashi, Kyohei Shigematsu, Takashi Inoue
  • Patent number: 11914012
    Abstract: A brain measurement apparatus includes: a magnetoencephalograph including optically pumped magnetometers, magnetic sensors for measuring a static magnetic field at positions of the optically pumped magnetometers, and a nulling coil for canceling the static magnetic field; an MRI apparatus including a permanent magnet, a gradient magnetic field coil, a transmission coil, and a receive coil for detecting a nuclear magnetic resonance signal; and a control device that, when measuring the brain's magnetic field, controls a current to be supplied to the nulling coil based on measured values of the magnetic sensors and operates so as to cancel a static magnetic field at the position of each of the optically pumped magnetometers and, when measuring an MR image, controls the gradient magnetic field by controlling a current to be supplied to the gradient magnetic field coil and generates an MR image based on an output of the receive coil.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: February 27, 2024
    Assignees: HAMAMATSU PHOTONICS K.K., Kyoto University
    Inventors: Takenori Oida, Takahiro Moriya, Akinori Saito, Motohiro Suyama, Tetsuo Kobayashi
  • Publication number: 20240057961
    Abstract: An intra-oral imaging system includes an imaging device and a control device. The imaging device includes an imager, a controller, and a case in which the imager and the controller are housed. The imager performs imaging detection for detecting radiation in order to acquire an image of an object and monitoring detection for detecting radiation in order to monitor the dose of radiation. The controller transmits an imaging signal and a monitoring signal to the control device, the imaging signal acquired by the imaging detection and the monitoring signal acquired by the monitoring detection. The control device receives the imaging signal and the monitoring signal, and transmits a control command to the controller, the control command generated based on the monitoring signal. The controller controls the imager according to the control command.
    Type: Application
    Filed: January 4, 2022
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Shigehiro KITAMURA, Kazuhisa MIYAGUCHI
  • Publication number: 20240058784
    Abstract: An active energy irradiation device includes: an active energy irradiation unit having an emitting surface extending in both a first direction and a second direction, the emitting surface configured to emit an active energy ray to one side in a third direction; an inert gas supply unit having a spray port located on one side in the second direction with respect to the emitting surface, the spray port configured to spray an inert gas to the one side in the third direction; and a structure including a protrusion portion located on the other side in the second direction with respect to the emitting surface, the protrusion portion protruding to the one side in the third direction with respect to the emitting surface. A width in the second direction of the protrusion portion is larger than a width in the third direction of the protrusion portion.
    Type: Application
    Filed: May 26, 2021
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kyoichi MURAYAMA, Keita UMENO
  • Publication number: 20240060772
    Abstract: A shape measurement apparatus includes a light source, an irradiation optical system, an imaging optical system, a spatial light modulator, a focusing optical system, a linear sensor, and a processing unit. The irradiation optical system forms the light into a line shape and irradiates an object. The imaging optical system forms an image of the light reflected by the object. The spatial light modulator, in which a one-dimensional intensity modulation pattern is set on a light modulation plane, spatially intensity-modulates and outputs the light. The focusing optical system focuses the light output from the spatial light modulator in a line shape. The linear sensor receives the light focused in the line shape by pixels. The processing unit performs analysis by the compressive sensing technique for each of the pixels based on the intensity modulation pattern and an output signal from the linear sensor.
    Type: Application
    Filed: January 13, 2022
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Keisuke UCHIDA, Munenori TAKUMI, Naoaki KATO
  • Publication number: 20240059555
    Abstract: A method for manufacturing a mirror device, the method includes a first step of preparing a wafer having a support layer and a device layer; a second step of forming a slit in the wafer such that the movable portion becomes movable with respect to the base portion by removing a part of each of the support layer and the device layer from the wafer by etching and forming a plurality of parts each corresponding to the structure in the wafer, after the first step; a third step of performing wet cleaning for cleaning the wafer using a cleaning liquid after the second step; and a fourth step of cutting out each of the plurality of parts from the wafer after the third step. In the second step, a circulation hole penetrating the wafer is formed at a part other than the slit in the wafer by the etching.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Daiki SUZUKI, Takahiro MATSUMOTO, Tomoyuki IDE, Mikito TAKAHASHI
  • Publication number: 20240060930
    Abstract: The ion sensor includes a substrate and a plurality of detection units. Each detection unit includes an ID portion, an ICG electrode, a TG electrode, an SG electrode, an electrode pad, and an ion sensitive film. The SG electrode is disposed between the ICG electrode and the TG electrode on the main surface of the substrate. The electrode pad is electrically connected to the SG electrode and disposed on the opposite side of the SG electrode from the substrate. The ion sensitive film is provided on the surface of the electrode pad, and changes a potential according to change in ion concentration of the aqueous solution in contact with the ion sensitive film. A width of the ion sensitive film in a facing direction in which the ICG electrode and the TG electrode face each other is greater than a separation width between the ICG electrode and the TG electrode.
    Type: Application
    Filed: September 22, 2021
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Toshiki WAKAMORI, Shinichi NAKAHIGASHI
  • Publication number: 20240060996
    Abstract: The present invention relates to a method for assessing mitochondrial function in a tissue or organ other than the kidney in a test subject, including: a step of calculating a ratio (BUN/CRE) of blood urea nitrogen (BUN) concentration to blood creatinine (CRE) concentration in a test subject; and a step of estimating mitochondrial activity in a tissue or organ other than the kidney in the test subject using the calculated ratio (BUN/CRE).
    Type: Application
    Filed: December 17, 2021
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroyuki OHBA, Hideo TSUKADA
  • Publication number: 20240057954
    Abstract: An intra-oral imaging device includes: an imager that detects radiation transmitted through an object while being placed in an oral cavity; and a controller that controls the imager while being placed outside the oral cavity. The imager includes an image sensor including a plurality of pixels for acquiring an image of the object. While power is being supplied to the controller, the controller supplies power to the image sensor in an imaging period during which the image sensor performs imaging and stops supplying the power to the image sensor in a standby period during which the image sensor is on standby.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventor: Shigehiro KITAMURA
  • Publication number: 20240063328
    Abstract: There are provided a light-emitting element, an optical detection module, a method for manufacturing a light-emitting element, and a scanning electron microscope using the same, by which it is possible to reduce crosstalk and expand the range of applications. A light-emitting element includes a fiber optic plate substrate having transparency to fluorescence and a light-emitting layer as a nitride semiconductor layer having a quantum well structure. In the light-emitting element, the fiber optic plate substrate and the light-emitting layer are directly bonded to each other.
    Type: Application
    Filed: November 25, 2021
    Publication date: February 22, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kuniyoshi YAMAUCHI, Minoru KONDO, Takayuki NAKAMURA, Junya MAEDA, Satoru OKAWARA
  • Patent number: 11906821
    Abstract: An SLM includes a modulation unit and a driving circuit. The modulation unit includes a plurality of pixels, and modulates a phase or an intensity of incident light in each pixel according to an amplitude of a drive signal changing periodically with time. The driving circuit provides the drive signal to the modulation unit. The driving circuit performs control such that a phase of the drive signal V1(t) provided to a first pixel group in the plurality of pixels and a phase of the drive signal V2(t) provided to a second pixel group in the plurality of pixels are mutually inverted.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: February 20, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroto Sakai, Munenori Takumi, Hiroshi Tanaka
  • Patent number: 11906727
    Abstract: A method for manufacturing an optical device includes: preparing a semiconductor substrate that includes a portion corresponding to a base, a movable unit, and an elastic support portion; forming a first resist layer in a region corresponding to the base on a surface of a first semiconductor layer which is opposite to an insulating layer; forming a depression in the first semiconductor layer by etching the first semiconductor layer using the first resist layer as a mask; forming a second resist layer in a region corresponding to a rib portion on a bottom surface of the depression, a side surface of the depression, and the surface of the first semiconductor layer which is opposite to the insulating layer; and forming the rib portion by etching the first semiconductor layer until reaching the insulating layer using the second resist layer as a mask.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: February 20, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Tatsuya Sugimoto, Tomofumi Suzuki, Kyosuke Kotani, Yutaka Kuramoto, Daiki Suzuki
  • Patent number: 11906425
    Abstract: A phantom design method includes a correction step and a calculation step. In the correction step, an absorption spectrum of a target of spectroscopic measurement by a near infrared spectrometer is corrected based on a refractive index of the target and a refractive index of a resin used as a base material of a phantom to generate a corrected absorption spectrum. In the calculation step, based on an absorption spectrum of the resin and an absorption spectrum of each of N types of dyes, a concentration of each of the N types of dyes to be contained in the base material is calculated such that an absorption spectrum of the phantom constituted by the base material containing the N types of dyes approximates the corrected absorption spectrum in a predetermined wavelength range of a near infrared region.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: February 20, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Kenji Yoshimoto, Yukio Ueda
  • Patent number: 11908880
    Abstract: A first region includes a plurality of first transfer column regions distributed in a first direction. A second region includes a plurality of second transfer column regions distributed in the first direction. The second region is positioned downstream of the first region in a charge transfer direction in the second transfer section. Lengths in a second direction of the plurality of first transfer column regions are equal. Lengths in the second direction of the plurality of second transfer column regions are longer than the length of the first transfer column region, and increase as the second transfer column region is positioned downstream in the charge transfer direction. A third region is disposed to correspond to the first region and extends along the first direction.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: February 20, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Masaharu Muramatsu
  • Publication number: 20240056702
    Abstract: A solid-state imaging device includes a pixel array unit, a row control unit, a row readout unit, a column control unit, and a column readout unit. The pixel array unit includes MN pixels each including a photodiode for generating charges by receiving light and arrayed two-dimensionally in M rows and N columns. The pixel inputs an m-th row control signal output from the row control unit to an m-th row control line, inputs an n-th column control signal output from the column control unit to an n-th column control line, and selects whether the charges generated in the photodiode are output to an m-th row output line or an n-th column output line based on a logical value of each of the m-th row control signal and the n-th column control signal.
    Type: Application
    Filed: October 11, 2021
    Publication date: February 15, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Keisuke UCHIDA, Munenori TAKUMI, Yukinobu SUGIYAMA, Katsuhiro ISHII, Ken-ichi KITAYAMA
  • Publication number: 20240054617
    Abstract: A control device 20 includes an image acquisition unit 203 configured to acquire a radiographic image obtained by irradiating a subject F with radiation and capturing an image of the radiation passing through the subject F, a noise map generation unit 204 configured to derive an evaluation value obtained by evaluating spread of a noise value from a pixel value of each pixel in the radiographic image on the basis of relationship data indicating a relationship between the pixel value and the evaluation value and generate a noise map that is data in which the derived evaluation value is associated with each pixel in the radiographic image, and a processing unit 205 configured to input the radiographic image and the noise map to a trained model 207 constructed in advance through machine learning and execute image processing of removing noise from the radiographic image.
    Type: Application
    Filed: October 7, 2021
    Publication date: February 15, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Satoshi TSUCHIYA, Tatsuya ONISHI, Toshiyasu SUYAMA
  • Publication number: 20240053603
    Abstract: A mirror unit includes an optical scanning device, a frame member, and a window member. The frame member includes first and second wall portions facing each other in an X-axis direction. The first wall portion is higher than the second wall portion. The window member is disposed on a top surface of the first wall portion and a top surface of the second wall portion and is inclined with respect to a mirror surface of the optical scanning device. In a cross-section parallel to the X-axis direction, the first wall portion is separated from a first line passing through a first end at a side of the first wall portion in the mirror surface and a first corner portion formed at the side of the first wall portion by an outer surface opposite to the frame member and a first side surface in the window member.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 15, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Daiki SUZUKI, Tomoyuki IDE, Yuki MORINAGA
  • Publication number: 20240051067
    Abstract: A laser processing method includes: a first step of preparing a wafer including a plurality of functional elements disposed to be adjacent to each other via a street; and a second step of, after the first step, irradiating the street with laser light based on information regarding the street such that a surface layer of the street is removed in a first region of the street and the surface layer remains in a second region of the street. The information regarding the street includes information indicating that, when a modified region is formed in the wafer along a line passing through the street, a fracture extending from the modified region does not reach the street along the line in the first region, and reaches the street along the line in the second region.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 15, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yo SUGIMOTO, Takeshi SAKAMOTO, Takafumi OGIWARA, Naoki UCHIYAMA, Takashi KURITA, Ryo YOSHIMURA
  • Patent number: D1015566
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 20, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Satoshi Yamamoto
  • Patent number: D1015567
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 20, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Satoshi Yamamoto