Patents by Inventor Toru Nakazawa

Toru Nakazawa 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).

  • Publication number: 20240164639
    Abstract: A hardness calculation device includes a distance measurement information acquisition unit configured to acquire distance measurement information indicating a distance to a reference position that is a part of a body of an animal, a pressure information acquisition unit configured to acquire pressure information indicating a pressure when a contact section is pressed against a target position that is a part of the body of the animal, the target position being a position different from the reference position, a calculation unit configured to calculate hardness information that is information about a hardness of a tissue existing in the body of the animal at the target position based on the distance measurement information acquired by the distance measurement information acquisition unit and the pressure information acquired by the pressure information acquisition unit, and an output unit configured to output the hardness information calculated by the calculation unit.
    Type: Application
    Filed: March 29, 2021
    Publication date: May 23, 2024
    Inventors: Akihiko YAMAGUCHI, Toru NAKAZAWA, Yasuhisa NEMOTO
  • 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: 20230263391
    Abstract: An ophthalmic information processing apparatus includes a determiner and a detector. The determiner is configured to determine a presence or absence of a disc hemorrhage for a front image of a fundus of a subject's eye, using a disc hemorrhage determination model obtained by performing machine learning using a plurality of fundus images labeled with labels indicating the presence or absence of a disc hemorrhage as first teaching data. The detector is configured to detect a disc hemorrhage region depicted in the front image that is determined to have the disc hemorrhage, using a disc hemorrhage region detection model obtained by performing machine learning using a plurality of pairs of image groups as second teaching data, each pair having a front image of a fundus and a disc hemorrhage region image representing a disc hemorrhage region depicted in the front image.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 24, 2023
    Applicants: Topcon Corporation, TOHOKU UNIVERSITY, RIKEN
    Inventors: Toru NAKAZAWA, Kazuko OMODAKA, Hideo YOKOTA, Guangzhou AN, Tsutomu KIKAWA
  • Publication number: 20230267610
    Abstract: An ophthalmic information processing apparatus includes an acquisition unit and a disease estimation unit. The acquisition unit is configured to acquire a plurality of images with different cross-sectional orientations from each other of a subject’s eye. The disease estimation unit is configured to output estimation information for estimating whether or not the subject’s eye is a glaucoma eye from the images, using a plurality of learned models obtained by performing machine learning for each type of the images.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 24, 2023
    Applicants: Topcon Corporation, TOHOKU UNIVERSITY, RIKEN
    Inventors: Toru NAKAZAWA, Kazuko OMODAKA, Hideo YOKOTA, Guangzhou AN, Takuma UDAGAWA
  • Patent number: 11648787
    Abstract: A supply device configured to supply a medium to a processing unit configured to perform processing on the medium, the supply device including an accommodating unit configured to accommodate a plurality of the media in a state of being stacked therein and a vibration imparting unit configured to contact ends of the plurality of media accommodated in the accommodating unit to impart vibration to the medium.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 16, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mami Hashizume, Hidetoshi Kodama, Tetsuji Takeishi, Toru Nakazawa
  • Patent number: 11426064
    Abstract: In examining a patient for progression of glaucoma, a perimeter capable of appropriately assessing visual field progression in a short period of time, therefore lessening the physical burden of testing on the examinee.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: August 30, 2022
    Inventors: Toru Nakazawa, Satoshi Shimada, Takuya Hara
  • Publication number: 20220112516
    Abstract: An adeno-associated virus (AAV) vector for inserting a desired nucleic acid into a nucleic acid in a cell, wherein the nucleic acid in the cell comprises a region consisting of a first nucleotide sequence and a region consisting of a second nucleotide sequence in order in a direction from a 5? end to a 3? end, wherein the vector comprises a first gRNA target sequence, a region consisting of a first nucleotide sequence, the desired nucleic acid, a region consisting of a second nucleotide sequence, a second gRNA target sequence, a cell-specific promoter, a sequence encoding a Cas9 nuclease, an RNA polymerase III promoter, a sequence encoding a first gRNA recognizing the first gRNA target sequence and a sequence encoding a second gRNA recognizing the second gRNA target sequence, wherein the vector yields a nucleic acid fragment comprising a region consisting of a first nucleotide sequence, the desired nucleic acid and the region consisting of the second nucleotide sequence by the Cas9 nuclease, wherein a first n
    Type: Application
    Filed: November 8, 2019
    Publication date: April 14, 2022
    Applicant: National University Corporation Tokai National Higher Education and Research System
    Inventors: Koji NISHIGUCHI, Toru NAKAZAWA, Kosuke FUJITA
  • Publication number: 20210370699
    Abstract: A supply device configured to supply a medium to a processing unit configured to perform processing on the medium, the supply device including an accommodating unit configured to accommodate a plurality of the media in a state of being stacked therein and a vibration imparting unit configured to contact ends of the plurality of media accommodated in the accommodating unit to impart vibration to the medium.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 2, 2021
    Inventors: Mami HASHIZUME, Hidetoshi KODAMA, Tetsuji TAKEISHI, Toru NAKAZAWA
  • Patent number: 10849918
    Abstract: A composition for optic nerve cell protection, for preventing or treating glaucoma, for suppressing retinal ganglion cell death, or for delaying a progression of visual acuity loss of human contains at least one selected from the group consisting of products obtained by steaming and drying wheat, defatted wheat germ, defatted rice germ, defatted soybean, fermented grape, hesperidin, lactic acid bacterium Lactobacillus salivarius, wild grape, Tamarind, Haskap, pomegranate seeds, licorice powder, and cinnamon powder.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: December 1, 2020
    Assignees: TOHOKU TECHNO ARCH CO., LTD., WAKAMOTO PHARMACEUTICAL CO., LTD.
    Inventors: Toru Nakazawa, Naomi Goto
  • Patent number: 10765316
    Abstract: An ophthalmic information processing system according to an embodiment includes a receiver and a processor. The receiver receives morphological data of an eye fundus of a subject. In addition, the receiver receives background data of the subject. The processor executes optic nerve head shape classification based on the morphological data and the background data received by the receiver.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 8, 2020
    Assignees: TOPCON CORPORATION, TOHOKU UNIVERSITY, RIKEN
    Inventors: Guangzhou An, Masahiro Akiba, Toru Nakazawa, Kazuko Omodaka, Hideo Yokota
  • Publication number: 20200205655
    Abstract: A perimeter 2 capable of acquiring, as a threshold SV, a value corresponding to a response result of a subject 22 to an optotype presented with various brightness, for measurement points set across an entire measurement field of view of the ocular fundus, displaying the threshold SV as a threshold inspection result SHR and storing the same in a memory 13, comprises: a portion 15 for obtaining a pattern deviation PDV of the threshold SV relating to each measurement point RG, from the threshold inspection result SHR; a portion for 15 for obtaining a P value representing the obtained pattern deviation PDV for each measurement point RG as a probability variable, and generating a probability map image MAP4 indicating the measurement points RG separately for each P value; a portion 16 for selecting, from an abnormal measurement point group RG of points in the probability map image MAP4 in which at least a prescribed number of measurement points having a P value at most equal to 5% are continuous, and, of those, for
    Type: Application
    Filed: July 23, 2018
    Publication date: July 2, 2020
    Applicants: Tohoku University, Kowa Company, Ltd.
    Inventors: Toru Nakazawa, Satoshi Shimada, Takuya Hara
  • Patent number: 10633225
    Abstract: An information presentation system includes: an overload preventing device that derives a load factor which is an index of a load applied to a rope; a data logger that accumulates data on the load factor derived by the overload preventing device and data on a time length for which a load corresponding to the derived load factor has been applied to the rope, the data on the load factor and the data on the time length being associated with one another, and generates lifting rope statistical information and raising rope statistical information indicating a relationship between the load factor and the cumulative time for each rope; and a presenting unit that presents the lifting rope statistical information and the raising rope statistical information generated by the data logger.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: April 28, 2020
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Takayoshi Hirate, Eiji Miya, Keisuke Fukumoto, Toru Nakazawa
  • Patent number: 10420736
    Abstract: The present invention addresses the problem of providing an intraocular irrigating solution that allows the intraocular tissue to be sufficiently protected during ophthalmic surgery and further has high safety. The problem is solved by an intraocular irrigating solution containing at least one of active sulfur molecules of which examples include cysteine persulfide and glutathione persulfide.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 24, 2019
    Assignee: TOHOKU UNIVERSITY
    Inventors: Toru Nakazawa, Takaaki Akaike, Hiroshi Kunikata
  • Patent number: 10362939
    Abstract: A fundus analysis apparatus includes a storage, an area setting unit, and a morphological information generating unit. The storage is configured to store OCT information acquired by applying optical coherence tomography to the fundus of an eye. The area setting unit is configured to set a front area corresponding to a front surface of the lamina cribrosa and a rear area corresponding to a rear surface of the lamina cribrosa in the OCT information. The morphological information generating unit is configured to generate morphological information indicating the morphology of the lamina cribrosa based on at least the front area and the rear area.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 30, 2019
    Assignees: TOHOKU UNIVERSITY, KABUSHIKI KAISHA TOPCON
    Inventors: Toru Nakazawa, Kazuko Omodaka, Akiko Matsumoto, Tsutomu Kikawa, Masahiro Akiba
  • Patent number: 10321817
    Abstract: An image display apparatus includes: a light source part generating a plurality of light rays corresponding to respective pixels in an image that changes over time; a projecting part defining an optical path from the light source part to an eye, and forming the image on a retina of the eye by projecting the generated light rays directly on the retina through the optical path; a splitting part splitting a plurality of reflection light rays from positions in a certain site of the eye on the optical path, the positions corresponding to the respective pixels; a detecting part detecting intensities of the reflection light rays that have been split; and a processing part obtaining parameters indicative of conditions of the site at the positions corresponding to the respective pixels, based on intensities of the generated light rays and the intensities of the reflection light rays, for the respective pixels.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 18, 2019
    Assignee: TOHOKU UNIVERSITY
    Inventors: Kazuhiro Hane, Toru Nakazawa, Takashi Sasaki
  • Patent number: 10294240
    Abstract: [Problem] To provide a fluorescent probe that detects calpain activity in cells at high sensitivity. [Solution] A compound represented by the following general formula (I) or a salt thereof.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: May 21, 2019
    Assignees: The University of Tokyo, Tohoku University
    Inventors: Yasuteru Urano, Yuri Nagayo, Mako Kamiya, Toru Nakazawa
  • Publication number: 20190099100
    Abstract: An object of the present invention is to provide a composite material that may be easily delivered and mounted in the living body. The object can be solved by a coated composite material characterized in that a composite material, in which a porous body is bounded to a substrate, is coated with at least one soluble component selected from a group consisting of a water-soluble compound, a temperature-sensitive soluble compound, and a pH sensitive soluble compound.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 4, 2019
    Applicant: TOHOKU UNIVERSITY
    Inventors: Matsuhiko NISHIZAWA, Kuniaki NAGAMINE, Teiji TOMINAGA, Toru NAKAZAWA, Masaki IWASAKI, Atsuhiro NAKAGAWA, Tomohiro KAWAGUCHI, Ayako TOKUE, Hitoshi NIIKURA, Yoshikatsu SAIKI
  • Publication number: 20180368679
    Abstract: An ophthalmic information processing system according to an embodiment includes a receiver and a processor. The receiver receives morphological data of an eye fundus of a subject. In addition, the receiver receives background data of the subject. The processor executes optic nerve head shape classification based on the morphological data and the background data received by the receiver.
    Type: Application
    Filed: March 20, 2018
    Publication date: December 27, 2018
    Applicants: TOPCON CORPORATION, TOHOKU UNIVERSITY, RIKEN
    Inventors: Guangzhou AN, Masahiro AKIBA, Toru NAKAZAWA, Kazuko OMODAKA, Hideo YOKOTA
  • Patent number: 10112399
    Abstract: A liquid jet apparatus comprises a liquid jet head, a carriage carrying the liquid jet head in a side-to-side direction, a liquid flow channel, and a liquid container in fluid communication with the liquid jet head through the liquid flow channel. The liquid container includes a liquid containing chamber arranged along a front/back direction orthogonal to the side-to-side direction; a liquid outlet port, from which the liquid contained in the liquid containing chamber flows to the liquid flow channel; and a liquid inlet port, through which the liquid is injected into the liquid containing chamber. The liquid inlet port has an end surface that does not face in a vertical direction relative to a normal posture of the apparatus.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 30, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Shoma Kudo, Takashi Koase, Toshiya Okada, Yasunori Koike, Tetsuya Takamoto, Nobutaka Suzuki, Satoshi Tamai, Toru Nakazawa, Katsutomo Tsukahara, Masayuki Kanazawa, Naofumi Mimura, Keigo Iizawa, Yutaka Kobayashi
  • Patent number: RE49518
    Abstract: [Problem] To provide a fluorescent probe that detects calpain activity in cells at high sensitivity. [Solution] A compound represented by the following general formula (I) or a salt thereof.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: May 2, 2023
    Assignees: The University of Tokyo, Tohoku University
    Inventors: Yasuteru Urano, Yuri Nagayo, Mako Kamiya, Toru Nakazawa