Patents by Inventor Mitsuru Sugawara

Mitsuru Sugawara 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).

  • Patent number: 10778221
    Abstract: According to one embodiment, a first switch controls conduction between first and second nodes according to a potential on a first control node. A second switch controls conduction between the first control node and a first potential node according to a potential on a second control node. A first circuit includes first and second output nodes respectively coupled to the first and second control nodes, and outputs at the second output node a potential that brings the second switch out of conduction while outputting a first potential at the first output node. The first circuit has a high impedance at the first output node while outputting at the second output node a potential that brings the second switch into conduction.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: September 15, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronics Devices & Storage Corporation
    Inventors: Shinji Ohno, Toshifumi Ishimori, Mitsuru Sugawara
  • Publication number: 20200275833
    Abstract: Provided is a vision test device including: a projection unit 10 that projects an image on a retina of a subject with use of a laser beam 50 by two-dimensionally scanning the laser beam; a beam diameter setting unit that sets a beam diameter of the laser beam; and a numerical aperture setting unit that sets a numerical aperture of the laser beam, wherein the projection unit projects, on the retina, a test image for measuring visual information of the subject with use of a laser beam having the set beam diameter and the set numerical aperture.
    Type: Application
    Filed: August 23, 2018
    Publication date: September 3, 2020
    Applicant: QD LASER, INC.
    Inventors: Seiji MORINO, Makoto SUZUKI, Mitsuru SUGAWARA, Kinya HASEGAWA
  • Patent number: 10761329
    Abstract: An image projection device includes: a projection unit that projects an image light beam forming an image onto a pupil of an eyeball of a user to project the image onto a retina of the eyeball; a detection unit that detects a direction in which the pupil has moved relative to a face of the user and a speed of movement of the pupil; and a control unit that performs different controls of the image when the pupil has moved at different speeds in a same direction.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 1, 2020
    Assignee: QD LASER, INC.
    Inventors: Mitsuru Sugawara, Makoto Suzuki, Michio Arai
  • Publication number: 20200229694
    Abstract: A visual sense examination device includes: a beam source that emits a visible beam and an invisible beam; a visible beam optical system that includes a first scanner scanning the visible beam; an invisible beam optical system that includes a second scanner scanning the invisible beam; a detector that detects the invisible beam reflected by a retina of a subject; a controller that performs a first control; a synthesizer that synthesizes the visible beam scanned by the first scanner and the invisible beam scanned by the second scanner; and wherein scanning angles of the visible beam by the first scanner and the invisible beam by the second scanner are substantially the same, and projectable ranges of the visible beam scanned by the first scanner and the invisible light scanned by the second scanner are substantially the same on the retina of the subject.
    Type: Application
    Filed: September 12, 2018
    Publication date: July 23, 2020
    Applicant: QD LASER, INC.
    Inventors: Kenji YASUI, Makoto SUZUKI, Mitsuru SUGAWARA, Kinya HASEGAWA
  • Publication number: 20200228117
    Abstract: According to one embodiment, a first switch controls conduction between first and second nodes according to a potential on a first control node. A second switch controls conduction between the first control node and a first potential node according to a potential on a second control node. A first circuit includes first and second output nodes respectively coupled to the first and second control nodes, and outputs at the second output node a potential that brings the second switch out of conduction while outputting a first potential at the first output node. The first circuit has a high impedance at the first output node while outputting at the second output node a potential that brings the second switch into conduction.
    Type: Application
    Filed: June 6, 2019
    Publication date: July 16, 2020
    Inventors: Shinji Ohno, Toshifumi Ishimori, Mitsuru Sugawara
  • Patent number: 10659743
    Abstract: An image projection device includes: a first mirror oscillating to scan an image light beam forming an image projected onto a retina of a user; a light source emitting the image light beam and a detection light beam to the first mirror at different timings; a second mirror having a first region reflecting the image light beam reflected by the first mirror to the retina and a second region reflecting the detection light beam reflected by the first mirror in a direction different from a direction in which the image light beam is reflected, and scanning neither the image light beam nor the detection light beam reflected by the first mirror; a detector detecting the detection light beam reflected by the second region; and a controller adjusting oscillation of the first mirror and an emission timing of the image light beam based on a detection result by the detector.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 19, 2020
    Assignees: QD LASER, INC., THE UNIVERSITY OF TOKYO
    Inventors: Yasuhiko Arakawa, Mitsuru Sugawara, Makoto Suzuki, Shuichi Tojo
  • Patent number: 10634904
    Abstract: An image projection device includes: a projection unit that irradiates a pupil 40 of an eyeball 36 of a user with an image light beam 34a forming an image to project the image onto a retina 38 of the eyeball; a detection unit that detects a direction 52 in which the pupil has moved relative to a face of the user; and a control unit that controls the projection unit based on a detected direction in which the pupil has moved so that the pupil is irradiated with the image light beam and the image is moved in a direction opposite to the direction in which the pupil has moved with respect to a position on which the image has been projected before a move of the pupil in a coordinate system visually recognized by the user.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: April 28, 2020
    Assignee: QD LASER, INC.
    Inventors: Mitsuru Sugawara, Makoto Suzuki, Michio Arai
  • Patent number: 10627631
    Abstract: The present invention is an image projection device that includes: a light source 12 that emits a laser beam 34; a scanning mirror 14 that two-dimensionally scans the laser beam 34 emitted from the light source 12; and a projection mirror 24 that projects scanned light onto a retina 26 of an eyeball 22 of a user to project an image onto the retina 26, the scanned light being composed of the laser beam 34 that has been scanned by the scanning mirror 14, wherein the laser beam 34 emitted from the light source 12 is scanned by using a part of an operating range of the scanning mirror 14.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: April 21, 2020
    Assignees: QD LASER, INC., THE UNIVERSITY OF TOKYO
    Inventors: Yasuhiko Arakawa, Mitsuru Sugawara, Makoto Suzuki
  • Publication number: 20200085295
    Abstract: A retinal scanning type eye examination device includes a storage unit configured to store test image data; a laser emitting unit including a laser light source configured to generate an imaging laser beam based on the test image data, the laser emitting unit being configured to project a test image onto a retina of an eyeball of a person subjected to an eye examination by using the imaging laser beam; an optical component configured to cause the imaging laser beam to converge at an inside of the eyeball of the person; a parameter acquiring unit configured to acquire parameter information for a retinal scanning type eyewear, the parameter information including angle information indicating a rotation angle of the laser emitting unit when the laser emitting unit is rotated around a converging point of the laser beam; and an output unit configured to output the parameter information to an external device.
    Type: Application
    Filed: December 19, 2017
    Publication date: March 19, 2020
    Inventors: Hironori MIYAUCHI, Kenji YASUI, Mitsuru SUGAWARA, Makoto SUZUKI
  • Patent number: 10578871
    Abstract: The present display device is a retinal scan display device including: a projection optical system configured to project an image to a retina of an eye; a distortion correcting unit configured to correct a distortion of the image; an image inverting unit configured to invert the image; and a storage unit configured to store correction data for correcting the distortion of the image when the image is projected to a left eye and correction data for correcting the distortion of the image when the image is projected to a right eye, wherein, based on a switching signal that represents that a side at which the projection optical system is arranged has been switched from one eye side to the other eye side, the distortion correcting unit performs distortion correction, by switching from correction data corresponding to one eye to correction data corresponding to the other eye, and the image inverting unit performs image inversion.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: March 3, 2020
    Assignees: MITSUMI ELECTRIC CO., LTD., QD Laser, Inc.
    Inventors: Misato Abe, Kimiyuki Ohba, Mitsuru Sugawara, Makoto Suzuki
  • Publication number: 20200002507
    Abstract: The present invention provides a diarylamine-based compound represented by General Formula (1): (where A1 and A2 each independently represent a C6 to C18 arylene group which may have a substituent, and A3 and A4 each independently represent an organic group having a cyclic imide structure which may have a substituent).
    Type: Application
    Filed: February 22, 2018
    Publication date: January 2, 2020
    Applicant: ZEON CORPORATION
    Inventors: Mitsuru SUGAWARA, Satoshi KIRIKI, Kazuhiro EJIRI
  • Publication number: 20190374645
    Abstract: To provide an absorption promotor that is capable of improving the efficiency in absorption of a pharmaceutical drug and that is highly stable, an absorption promotor includes an oxa acid having a structure represented by the formula (1) below, where R1 represents a linear or branched hydrocarbon group having 1 to 40 carbon atoms, one or more but not all carbon atoms of which hydrocarbon group have optionally been substituted by an oxygen atom, a nitrogen atom, or a sulfur atom, the hydrocarbon group being saturated or unsaturated; m represents a real number of 0 to 50; n represents an integer of 1 to 5; and —C(?O)—X represents a functional group capable of chemical reaction.
    Type: Application
    Filed: March 2, 2018
    Publication date: December 12, 2019
    Inventors: Mitsuru SUGAWARA, Yuki SATO, Yoh TAKEKUMA, Shingo MARUYAMA
  • Publication number: 20190353897
    Abstract: An image projection device includes: a light source emitting a light beam; an image input unit inputting image data; a control unit generating an image light beam based on the input image data, and controlling emission of the image light beam from the light source; a scan unit scanning the image light beam emitted from the light source; and a projection optical member illuminating a retina of an eyeball of a user with the image light beam scanned by the scan unit, and projecting an image onto the retina, wherein a diameter of the image light beam at a time when the image light beam enters a cornea of the eyeball is not smaller than 310 ?m and not larger than 800 ?m, and a user having an original visual acuity in a range of 0.04 to 1.2 has an acquired visual acuity of 0.4 or higher.
    Type: Application
    Filed: October 5, 2017
    Publication date: November 21, 2019
    Applicant: QD LASER INC.
    Inventors: Makoto SUZUKI, Kenji YASUI, Mitsuru SUGAWARA
  • Patent number: 10444519
    Abstract: An image projection device includes: one light source unit emitting an image light beam, which forms an image, of visible light and a checking light beam of visible light; an optical system projecting the image light beam emitted from emitted from the one light source unit onto a first surface region of an eye of a user to project the image light beam onto a retina of the user, and projecting the checking light beam emitted from the one light source unit onto a second surface region, which is distant from the first surface region, of the eye of the user; a light detector detecting a reflected light that is the checking light beam reflected by the eye of the user; and a controller controlling at least one of the one light source unit and the optical stem based on a detection result of the reflected light by the light detector.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 15, 2019
    Assignees: QD LASER, INC., THE UNIVERSITY OF TOKYO
    Inventors: Yasuhiko Arakawa, Mitsuru Sugawara, Makoto Suzuki, Michio Arai
  • Publication number: 20190274544
    Abstract: A scanning laser ophthalmoscope may include: a light source configured to emit laser light; a scanner configured to scan the laser light emitted from the light source two-dimensionally; a guide mirror configured to guide the laser light scanned by the scanner to a fundus of an eye of a subject; a guide mirror holder configured to hold the guide mirror in a predetermined positional relationship with the eye of the subject; a light receiver configured to receive reflected light of the laser light reflected on the fundus; and an image generator configured to generate a fundus image based on the reflected light received by the light receiver. The guide mirror may be disposed on a path connecting the scanner and the fundus of the eye of the subject, and disposed in front of the eye of the subject. The scanner may be disposed at the guide mirror holder.
    Type: Application
    Filed: September 21, 2017
    Publication date: September 12, 2019
    Inventors: Mitsuru Sugawara, Makoto Suzuki, Hideo Mukai
  • Publication number: 20190276634
    Abstract: Provided is an acrylic polymer composition comprising an acrylic polymer and a polyfunctional organic compound having a urea group, wherein the acrylic polymer composition has less than 50% decrease in molecular weight of the acrylic polymer when heated under conditions of 190° C. and 144 hours in air.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 12, 2019
    Applicant: ZEON CORPORATION
    Inventors: Mitsuru SUGAWARA, Satoshi KIRIKI, Kei SAKAMOTO, Kazuhiro EJIRI
  • Patent number: 10409146
    Abstract: A terminal device (300) includes a projection target holding unit that holds projection information to be projected by an image projection device (200), a storage unit that stores position information indicating a position on the retina of a user (P) at which the projection information is to be projected, a position information acquisition unit that acquires the position information from the storage unit, an image data generation unit that generates image data (D) of an image (202G) that projects the projection information at the position indicated by the position information, and an image output processing unit that outputs the image data (D) to the image projection device (200).
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: September 10, 2019
    Assignee: QD Laser, Inc.
    Inventors: Mitsuru Sugawara, Makoto Suzuki, Kinya Hasegawa
  • Publication number: 20190133437
    Abstract: A terminal device includes an image data holding unit that holds examination image data, an image output processing unit that outputs the examination image data to a visual field/visual acuity examination device, a display unit that displays an image, and a display control unit that generates an examination image based on the examination image data and displays the examination image on the display unit. The visual field/visual acuity examination device includes a light source unit that emits a light beam, an image input unit that inputs the examination image data from the terminal device, a control unit that generates an image light beam based on the input examination image data and controls emission of the image light beam from the light source unit, a scanning mirror that scans the image light beam to generate an examination image light beam, and a projection unit that projects the examination image light beam as the examination image on an eyeball of a test subject.
    Type: Application
    Filed: June 7, 2017
    Publication date: May 9, 2019
    Inventors: Mitsuru SUGAWARA, Makoto SUZUKI, Kinya HASEGAWA
  • Publication number: 20190137857
    Abstract: A terminal device (300) includes a projection target holding unit that holds projection information to be projected by an image projection device (200), a storage unit that stores position information indicating a position on the retina of a user (P) at which the projection information is to be projected, a position information acquisition unit that acquires the position information from the storage unit, an image data generation unit that generates image data (D) of an image (202G) that projects the projection information at the position indicated by the position information, and an image output processing unit that outputs the image data (D) to the image projection device (200).
    Type: Application
    Filed: June 8, 2017
    Publication date: May 9, 2019
    Inventors: Mitsuru SUGAWARA, Makoto SUZUKI, Kinya HASEGAWA
  • Publication number: 20190112467
    Abstract: Provided is an acrylic polymer composition comprising an acrylic polymer and a polyfunctional organic compound represented by the following general formula (1): (in the general formula (1), R4 and R2 are each independently a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, R3 and R4 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, and k is an integer of 1 or larger).
    Type: Application
    Filed: March 22, 2017
    Publication date: April 18, 2019
    Applicant: ZEON CORPORATION
    Inventors: Mitsuru SUGAWARA, Satoshi KIRIKI, Kei SAKAMOTO, Kazuhiro EJIRI