Patents Assigned to Tohoku University
  • Publication number: 20230390583
    Abstract: In order to provide a dose distribution creating program in consideration of influence of a magnetic field, a dose distribution creating method in consideration of influence of a magnetic field, and a dose distribution creating apparatus, enabling dose calculation in a magnetic field faster and more accurately than in the related art, the dose distribution creating program in consideration of influence of a magnetic field causes a computer to acquire a captured image of a subject captured with a magnetic field and an electrical wave or a photon beam, a dose distribution not in a magnetic field, and a dose distribution in a magnetic field, and input the dose distribution not in a magnetic field and information based on the captured image to a learning model (171) including a plurality of layers and trained in advance using the dose distribution not in a magnetic field, the dose distribution in a magnetic field, and the information based on the captured image, and estimate the dose distribution in a magnetic fi
    Type: Application
    Filed: November 4, 2021
    Publication date: December 7, 2023
    Applicant: TOHOKU UNIVERSITY
    Inventors: Noriyuki KADOYA, Tomohiro KAJIKAWA, Shohei TANAKA, Suguru DOBASHI, Keiichi JINGU
  • Publication number: 20230392280
    Abstract: An object of the present invention is to provide a GaN crystal long in light emission lifetime by time-resolved photoluminescence measurement and provide high-quality GaN crystal and GaN substrate that have few specified crystal defects affecting the light emission lifetime. A gallium nitride crystal having a light emission lifetime by time-resolved photoluminescence measurement, of 5 ps or more and 200 ps or less, and satisfying at least one of the following requirement (i) and requirement (ii): (i) an FWHM in a 004 diffraction X-ray rocking curve is 50 arcsec or less at least one position of the crystal; and (ii) a dislocation density is 5×106 cm?2 or less.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 7, 2023
    Applicants: MITSUBISHI CHEMICAL CORPORATION, THE JAPAN STEEL WORKS, LTD., TOHOKU UNIVERSITY
    Inventors: Yutaka MIKAWA, Hirotaka IKEDA, Quanxi BAO, Kouhei KURIMOTO, Kohei SHIMA, Kazunobu KOJIMA, Toru ISHIGURO, Shigefusa CHICHIBU
  • Publication number: 20230390235
    Abstract: The present invention aims to develop a method for treating COVID-19 caused by SARS-CoV-2 or a mutant strain thereof, and provides an agent for preventing and/or treating COVID-19 caused by SARS-CoV-2 or a mutant strain thereof, the agent comprising a specific compound.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 7, 2023
    Applicants: SENJU PHARMACEUTICAL CO., LTD., TOHOKU UNIVERSITY
    Inventors: Mitsuyoshi AZUMA, Chiho FUKIAGE, Takashi IMADA, Yayoi KISHIMOTO, Noriyasu HIRASAWA, Yoshiro SAITO, Takashi TOYAMA
  • Publication number: 20230393117
    Abstract: A biological information measurement device includes: a scattering rate calculating unit configured to calculate a scattering rate of light at an interface between a medium present in a biological object or in a specimen and a particle included in the medium based on received-light intensity of light irradiated onto the biological object or onto the specimen and received via the biological object or via the specimen; and a concentration index calculating unit configured to calculate, based on a correlation between the scattering rate of the light at the interface and a concentration index corresponding to concentration of a target substance that is different from the particle included in the medium, the concentration index corresponding to the scattering rate of the light calculated by the scattering rate calculating unit.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 7, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., TOHOKU UNIVERSITY
    Inventors: Hideaki HASEGAWA, Takayori ITO, Hiroyuki TAMAOKA, Koji KAWAJIRI, Rihito KURODA
  • Patent number: 11838696
    Abstract: A projection system includes a projector that projects a content image and a pattern image, a camera that photographs a projection surface when the pattern image is projected, a camera deformation value calculation unit that calculates a texture deformation value indicating a change in position, orientation, or shape of the projection surface on the basis of a photographing result, a projector deformation value acquisition unit that acquires a projector deformation value for converting the content image on the basis of the pattern image captured in the photographing result and the texture deformation value, and a transmission image acquisition unit that executes processing of deforming the content image on the basis of the projector deformation value and processing of deforming the pattern image on the basis of the projector deformation value, and the pattern image satisfies a condition that a plurality of types of solid color regions having different brightness values are included.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: December 5, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventor: Shingo Kagami
  • Patent number: 11837679
    Abstract: A display device includes a substrate including a first surface, and a second surface positioned at a side opposite to the first surface; a first light-emitting element located at a lateral side of the substrate; a plurality of light-receiving elements located at a second surface side of the substrate; a plurality of second light-emitting elements located on the first surface of the substrate; and a first drive element controlling driving of the second light-emitting elements based on output of the light-receiving elements. A light-emitting surface of the first light-emitting element is oriented in a first direction. The first direction is parallel to a direction from the first surface toward the second surface. Light-emitting surfaces of the second light-emitting elements are oriented in a second direction. The second direction is from the second surface toward the first surface.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: December 5, 2023
    Assignees: TOHOKU UNIVERSITY, NICHIA CORPORATION
    Inventors: Tetsu Tanaka, Takafumi Fukushima, Hisashi Kino, Masatsugu Ichikawa
  • Publication number: 20230380464
    Abstract: This bile acid adsorbing agent composed of silica particles, to which an organosilicon compound represented by general formula (1) is bonded, has the advantage that water-absorption swelling does not occur. (In formula (1), R1, R2, and R3 each independently represent a hydrogen atom, a C1-C20 alkyl group, a vinyl group, a phenyl group, or a benzyl group, and R4 represents a group represented by general formula (2), provided that R1 and R3 may be bonded to each other to form a benzene ring.) (In formula (2), A represents a linear or branched divalent linking group which may contain a heteroatom, a urethane bond, a urea bond, a thiourethane bond, and/or a thiourea bond, R5,s each independently represent a C1-C10 alkyl group or a C6-C10 aryl group, R6,s each independently represent a C1-C10 alkyl group or a C6-C10 aryl group, and n represents an integer of 1-3.
    Type: Application
    Filed: September 27, 2021
    Publication date: November 30, 2023
    Applicants: SHIN-ETSU CHEMICAL CO., LTD., TOHOKU UNIVERSITY
    Inventors: Shigeki YASUDA, Tsuneo KIMURA, Munenao HIROKAMI, Masaki TANAKA, Naoki TANAKA
  • Patent number: 11829863
    Abstract: There is provided a neural network circuit device including a plurality of synapse circuits storing a synaptic coupling weight and a neuron circuit connected to the plurality of synapse circuits. The plurality of synapse circuits store the synaptic coupling weight in a non-volatile manner and output a voltage signal having a magnitude based on the stored synaptic coupling weight in response to an input signal. The neuron circuit includes a neuron MOS transistor having a floating gate and a plurality of control gates which are capacitively coupled to the floating gate and to which the voltage signals from the plurality of synapse circuits are input respectively, and a pulse generator outputting a pulse signal by turning on or off the neuron MOS transistor.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 28, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Yitao Ma, Tetsuo Endoh
  • Publication number: 20230375519
    Abstract: Provided is a novel method by which an antibody of interest in a wastewater sample can be detected in a simple manner. Specifically, provided is a method of detecting an antibody of interest in wastewater, the method including: a step of bringing an electrode modified with a protein that specifically binds with the antibody of interest into contact with wastewater; a step of bringing the electrode brought into contact with the wastewater in the preceding step into contact with a reaction solution containing a redox substance; and a step including applying a voltage to the electrode in a state of being brought into contact with the reaction solution, and measuring a current.
    Type: Application
    Filed: March 9, 2023
    Publication date: November 23, 2023
    Applicant: TOHOKU UNIVERSITY
    Inventor: Daisuke SANO
  • Patent number: 11817309
    Abstract: Provided are: a method of producing heated ozone water, the method capable of producing heated ozone water having an extremely high ozone concentration by suppressing a reduction in the ozone concentration in high-concentration heated ozone water; heated ozone water; and a semiconductor wafer-cleaning liquid using the heated ozone water. A method of producing heated ozone water obtained by dissolving ozone in pure water, the method being characterized by including: adjusting a pH of the pure water to 3 or less by adding acid to the pure water; to obtain an acid water, dissolving an ozone gas in the acid water; and heating the pure water, the acid water or the ozone water, to 60° C. or more.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 14, 2023
    Assignees: TOHOKU UNIVERSITY, NOMURA MICRO SCIENCE CO., LTD.
    Inventors: Yasuyuki Shirai, Takeshi Sakai, Takayuki Jizaimaru
  • Patent number: 11814511
    Abstract: A hydrogel composition, a tissue model, and a method of manufacturing the tissue model by which time and cost for manufacturing the tissue model can be reduced while the viscosity of the tissue model can be suitably maintained is provided. A hydrogel composition is used for a tissue model and comprises a polyvinyl alcohol and a pseudoplastic compound. A tissue model comprises the hydrogel composition. A manufacturing method for a tissue model comprises a step of preparing a solution including a polyvinyl alcohol and a pseudoplastic compound, and a step of discharging the solution into a mold of the tissue model at a shear rate of 0.01 to 300 sec?1.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 14, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Makoto Ohta, Yasutomo Shimizu, Ren Takahashi
  • Publication number: 20230361752
    Abstract: An acoustic wave device that can achieve a good characteristic in a superhigh frequency band of 6 GHz or higher by using an overtone. The device includes: a piezoelectric substrate; an electrode provided in such a way as to be in contact with the piezoelectric substrate; and an acoustic multilayer film provided in such a way as to be in contact with the piezoelectric substrate and/or the electrode and is configured to use an overtone of resonance characteristics of a surface acoustic wave. The electrode includes an interdigital transducer provided on one of surfaces of the piezoelectric substrate. The surface acoustic wave that is the overtone preferably has a velocity of 9000 m/s or higher. The acoustic multilayer film is preferably composed of an acoustic low impedance film and an acoustic high impedance film which are alternately stacked.
    Type: Application
    Filed: February 12, 2021
    Publication date: November 9, 2023
    Applicant: TOHOKU UNIVERSITY
    Inventors: Michio KADOTA, Shuji TANAKA
  • Publication number: 20230337908
    Abstract: An ophthalmic information processing apparatus includes a feature amount extractor and a classifier. The feature amount extractor is configured to extract a feature amount of each of two or more images different from each other of a subject’s eye. The classifier is configured to output two or more confidence score information for estimating classification result of a pathological condition of a disease of the subject’s eye, based on the feature amounts of each of the two or more images extracted by the feature amount extractor and one or more background data representing a state of the subject or a state of the subject’s eye.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Applicants: Topcon Corporation, TOHOKU UNIVERSITY
    Inventors: Toru NAKAZAWA, Kazuko OMODAKA, Guangzhou AN
  • Publication number: 20230344269
    Abstract: A network system includes a network architecture including: a network layer configured to define an entirety of an electric power network constituted from electric power grids; a local network layer configured to define a local network corresponding to electric power grid groups and forming a part of the electric power network; a grid layer configured to define the electric power grids; a physical layer configured to define constituent elements included in the electric power grids; a first layer configured to define the information communication network that is associated with the network layer; a second layer configured to define the information communication network that is associated with the local network layer; a third layer configured to define the information communication network that is associated with the grid layer; and space, a fourth layer configured to define the information communication network that is associated with the physical layer.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Applicants: TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Taiichi OTSUJI, Katsumi IWATSUKI, Hirohito YAMADA, Masafumi YASHIMA, Masakazu MATSUI, Hiroyuki KOSHI
  • Patent number: 11797761
    Abstract: Disclosed is a natural language processing technique according to a neural network of high interpretive ability. One embodiment of the present disclosure relates to an apparatus including a trained neural network into which first natural language text is input and that is trained to output second natural language text and alignment information, the second natural language text being in accordance with a predetermined purpose corresponding to the first natural language text, and the alignment information indicating, for each part of the second natural language text, which part of the first natural language text is a basis of information for generation; and an analyzing unit configured to output, upon input text being input into the trained neural network, a predicted result of output text in accordance with a predetermined purpose, and alignment information indicating, for each part of the predicted result of the output text, which part of the input text is a basis of information for generation.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 24, 2023
    Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, TOHOKU UNIVERSITY
    Inventors: Jun Suzuki, Sho Takase, Kentaro Inui, Naoaki Okazaki, Shun Kiyono
  • Patent number: 11790966
    Abstract: A nonvolatile logic circuit includes: a memory unit having a pair of resistive memory elements; a computation unit connected to the memory unit and configured to perform an operation based on an input signal and a logic value corresponding to a resistance state of the pair of resistive memory elements; a determination circuit configured to determine whether the resistance state of the pair of resistive memory elements is a complementary state or a non-complementary state; and an output circuit connected to the computation unit and the determination circuit, and configured to output a signal corresponding to an operation result by the computation unit or a signal corresponding to a determination result by the determination circuit.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: October 17, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Masanori Natsui, Takahiro Hanyu, Tetsuo Endoh
  • Patent number: 11789172
    Abstract: A liquefaction evaluation model generation device includes a data acquisition unit configured to acquire training data in which learning vibration data indicating a physical quantity associated with vibrations observed in the ground is defined as a question and learning liquefaction data indicating the degree of liquefaction occurring in the ground where the vibrations associated with the learning vibration data have been observed is defined as an answer, and a machine learning execution unit configured to execute machine learning using the training data and generate a liquefaction evaluation model that is a machine learning model.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: October 17, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Motoki Kazama, Akiyoshi Kamura, Go Kurihara
  • Publication number: 20230327436
    Abstract: A power system includes: a direct-current bus to which a power generation device and a plurality of power devices are connected; and a plurality of battery devices connected at predetermined intervals from one end of the direct-current bus to another end and configured to supply and receive power to and from the direct-current bus.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 12, 2023
    Applicants: TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Taiichi OTSUJI, Katsumi IWATSUKI, Hirohito YAMADA, Masafumi YASHIMA, Masakazu MATSUI, Hiroyuki KOSHI
  • Publication number: 20230327431
    Abstract: A network system includes: a wireless base station configured to relay communication performed by wireless terminals; distributed antennas each being configured to be connected to the wireless base station and form a cell that enables communication with the wireless terminals; direct-current grids each being arranged in a predetermined form in a communication area formed by the cells and configured to interchange power with power devices connected to the subject direct-current grid; a power gate arranged between the direct-current grids located adjacent to each other and configured to interchange power between the adjacent direct-current grids; and a control device configured to control the power gate based on information acquired from the power devices via the distributed antennas. The power devices connected to the direct-current grids are configured to perform communication with the control device via the distributed antennas that form the communication area including the direct-current grids.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Applicants: TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Taiichi OTSUJI, Katsumi IWATSUKI, Hirohito YAMADA, Masafumi YASHIMA, Masakazu MATSUI, Hiroyuki KOSHI
  • Publication number: 20230314247
    Abstract: In order to reduce the chance that a metasurface pattern is damaged by electrostatic discharge, a force sensor module includes a first substrate having light transparency; a metasurface pattern provided on a first principal surface; a second substrate provided so as to face the first substrate and including a second principal surface facing the first principal surface; a reflective layer provided on the second principal surface; a spacer layer provided on the first principal surface and made of an electrically-conductive material; a joining layer for joining the second principal surface and the spacer layer together; and a grounding wire connected to the spacer layer.
    Type: Application
    Filed: March 7, 2023
    Publication date: October 5, 2023
    Applicants: SINTOKOGIO, LTD., TOHOKU UNIVERSITY
    Inventors: Yoshikane Tanaami, Miyuki Hayashi, Yoshiaki Kanamori, Taiyu Okatani