Patents Assigned to Utsunomiya University
  • Patent number: 11061248
    Abstract: A noncontact operation detecting device includes a detecting means configured to be able to detect whether or not an object is present at each of a plurality of points to be observed, which are set in a space, an operation decision section configured to determine, on the basis of a detection result detected by the detecting means, whether or not a gesture operation has been performed, and an aerial image displaying device configured to be able to display an aerial image showing locations of the plurality of points to be observed, in the space.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: July 13, 2021
    Assignees: TOYODA GOSEI CO., LTD., UTSUNOMIYA UNIVERSITY
    Inventors: Yuichi Tsunekawa, Kazuhito Kawamura, Hirotsugu Yamamoto
  • Patent number: 11002986
    Abstract: A display device as an embodiment of the present invention is provided with a light source, a light splitting portion for causing first emission light emitted from the light source to be surface-reflected as first reflected light, a retro-reflection portion for retro-reflecting the first reflected light toward the light splitting part as retro-reflected light, and a first light blocking portion for blocking surface-reflected light surface-reflected by the retro-reflection part toward an observation position of the retro-reflected light. The light splitting portion is configured to transmit at least some of the retro-reflected light.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 11, 2021
    Assignee: UTSUNOMIYA UNIVERSITY
    Inventors: Hirotsugu Yamamoto, Ryosuke Kujime
  • Patent number: 10960404
    Abstract: A drainage processing apparatus that processes drainage expelled from a scrubber apparatus is provided. The drainage processing apparatus includes: a magnetic powder adding unit that adds magnetic powders to the drainage; a transfer unit that transfers the drainage; and an adsorbing unit that: is provided in the transfer unit; adsorbs bound matter that is contained in the drainage and contains at least a process-target substance and the magnetic powders; and retains the bound matter in the transfer unit. In one example, the adsorbing unit is able to re-release adsorbed bound matter into the transfer unit. In one example, the adsorbing unit has a permanent magnet provided to be directly insertable into and removable from within the transfer unit, and the permanent magnet adsorbs the bound matter by being inserted into the transfer unit, and re-releases the bound matter into the transfer unit by being removed from within the transfer unit.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: March 30, 2021
    Assignees: FUJI ELECTRIC CO., LTD., UTSUNOMIYA UNIVERSITY
    Inventors: Yosuke Hanai, Yasuzo Sakai
  • Patent number: 10878563
    Abstract: A three-dimensional shape data production method and a system for the same for realizing contactless receiving of data regarding the inner shape of a tubular body which includes a step of generating multiple pieces of two-dimensional image data based on a signal from an image capturing device configured to be movable inside a tubular body and configured to capture an image of the inside of the tubular body; a step of receiving space information on the image capturing device upon image capturing by the image capturing device based on a signal from a motion sensor placed at the image capturing device; and a step of associating the two-dimensional image data and the space information with each other and generating three-dimensional shape data of the inside of the tubular body based on the two-dimensional image data and the space information.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 29, 2020
    Assignees: RION Co., Ltd., Utsunomiya University
    Inventors: Takeshi Nakagawa, Daisuke Barada
  • Patent number: 10800681
    Abstract: System and method for treating scrubber and ballast wastewater at the same time. The method includes mixing ballast and scrubber wastewater to make a suspended solid concentration or turbidity of the obtained wastewater mixture constant, the scrubber wastewater produced by bringing exhaust gas and scrubber washing water into contact with each other in a scrubber; adding magnetic powder to the wastewater mixture; and magnetically separating magnetic flocs obtained in the adding. The system includes a mixer that mixes ballast and scrubber wastewater to make a suspended solid concentration or turbidity of the obtained wastewater mixture constant, the scrubber wastewater produced by bringing exhaust gas and scrubber washing water into contact with each other in a scrubber; a magnetic powder adding device that adds magnetic powder to the wastewater mixture obtained by the mixer; and a magnetic separator that magnetically separates magnetic flocs obtained by the magnetic powder adding device.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 13, 2020
    Assignees: FUJI ELECTRIC CO., LTD., UTSUNOMIYA UNIVERSITY
    Inventors: Yosuke Hanai, Eiju Nakada, Yasuzo Sakai
  • Patent number: 10746664
    Abstract: Provided are a polarizing film imaging apparatus, a polarizing film inspection apparatus including the imaging apparatus, and a polarizing film inspection method using the imaging apparatus. The imaging apparatus includes: a light source that is configured to emit light toward a polarizing film to be inspected; an imaging unit that is arranged on an optical axis of the light source and on an opposite side to the light source with the polarizing film therebetween; and at least one of a circular polarizing plate arranged between the light source and the polarizing film, and a wavelength plate arranged between the polarizing film and the imaging unit.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 18, 2020
    Assignees: NITTO DENKO CORPORATION, UTSUNOMIYA UNIVERSITY
    Inventors: Shunsuke Sasaki, Ichiro Suehiro, Shuhei Shibata, David Ignacio Serrano Garcia, Yukitoshi Otani
  • Patent number: 10723661
    Abstract: The present invention is to provide an economical and efficient method of reducing drying shrinkage of a cement-based hardened body without requiring the cost and/or the labor and time. A cement-based hardened body is impregnated with a solution containing urea or a solution containing sulfate together with urea. An impregnation treatment may be by a method of coating or spraying the cement-based hardened body with the solution, or alternatively, immersing the cement-based hardened body in the solution containing both urea and sulfate for a predetermined period of time. The solution containing both urea and sulfate may be a solution prepared simply by dissolving both urea and sulfate in water.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 28, 2020
    Assignees: UTSUNOMIYA UNIVERSITY, DPS BRIDGE WORKS CO., LTD., MIZOGUCHIJIGYO CO., LTD.
    Inventors: Hiromi Fujiwara, Shinichi Takemoto, Yoshikatsu Sasaki
  • Publication number: 20200211765
    Abstract: A planar transformer includes: a primary side planar air core coil; a secondary side planar air core coil; a primary side planar core; and a secondary side planar core. The secondary side planar air core coil is arranged so as to be spaced from the primary side planar air core coil in the winding center axis direction of the primary side planar air core coil, the secondary side planar air core coil having a non-facing portion configured not to face the primary side planar air core coil in the winding center axis direction. The primary side planar core and the secondary side planar core are stacked on outer sides of the primary side planar air core coil and the secondary side planar air core coil in the directions of the winding center axes, respectively.
    Type: Application
    Filed: July 6, 2018
    Publication date: July 2, 2020
    Applicants: Marelli Corporation, National University Corporation Hokkaido University, Utsunomiya University
    Inventors: Fumihiro Okazaki, Satoshi Ogasawara, Hirohito Funato
  • Patent number: 10374518
    Abstract: A direct current (DC)-DC converter includes: a transformer; a half bridge circuit provided on a primary side of the transformer; a synchronous rectification circuit provided on a secondary side of the transformer; and a controller configured to switch a power semiconductor device for rectification of the synchronous rectification circuit at a duty ratio and a phase corresponding to an input voltage of the half bridge circuit and an output current of the synchronous rectification circuit.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: August 6, 2019
    Assignees: CALSONIC KANSEI CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, UTSUNOMIYA UNIVERSITY
    Inventors: Fumihiro Okazaki, Satoshi Ogasawara, Hirohito Funato, Kousuke Aoki
  • Publication number: 20190196213
    Abstract: A display device as an embodiment of the present invention is provided with a light source, a light splitting portion for causing first emission light emitted from the light source to be surface-reflected as first reflected light, a retro-reflection portion for retro-reflecting the first reflected light toward the light splitting part as retro-reflected light, and a first light blocking portion for blocking surface-reflected light surface-reflected by the retro-reflection part toward an observation position of the retro-reflected light. The light splitting portion is configured to transmit at least some of the retro-reflected light.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Applicant: Utsunomiya University
    Inventors: Hirotsugu Yamamoto, Ryosuke Kujime
  • Publication number: 20190033226
    Abstract: Provided are a polarizing film imaging apparatus, a polarizing film inspection apparatus including the imaging apparatus, and a polarizing film inspection method using the imaging apparatus. The imaging apparatus includes: a light source that is configured to emit light toward a polarizing film to be inspected; an imaging unit that is arranged on an optical axis of the light source and on an opposite side to the light source with the polarizing film therebetween; and at least one of a circular polarizing plate arranged between the light source and the polarizing film, and a wavelength plate arranged between the polarizing film and the imaging unit.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 31, 2019
    Applicants: NITTO DENKO CORPORATION, UTSUNOMIYA UNIVERSITY
    Inventors: Shunsuke Sasaki, Ichiro Suehiro, Shuhei Shibata, David Ignacio Serrano Garcia, Yukitoshi Otani
  • Publication number: 20190028036
    Abstract: A direct current (DC)-DC converter includes: a transformer; a half bridge circuit provided on a primary side of the transformer; a synchronous rectification circuit provided on a secondary side of the transformer; and a controller configured to switch a power semiconductor device for rectification of the synchronous rectification circuit at a duty ratio and a phase corresponding to an input voltage of the half bridge circuit and an output current of the synchronous rectification circuit.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 24, 2019
    Applicants: CALSONIC KANSEI CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, UTSUNOMIYA UNIVERSITY
    Inventors: Fumihiro OKAZAKI, Satoshi OGASAWARA, Hirohito FUNATO, Kousuke AOKI
  • Publication number: 20180305227
    Abstract: System and method for treating scrubber and ballast wastewater at the same time. The method includes mixing ballast and scrubber wastewater to make a suspended solid concentration or turbidity of the obtained wastewater mixture constant, the scrubber wastewater produced by bringing exhaust gas and scrubber washing water into contact with each other in a scrubber; adding magnetic powder to the wastewater mixture; and magnetically separating magnetic flocs obtained in the adding. The system includes a mixer that mixes ballast and scrubber wastewater to make a suspended solid concentration or turbidity of the obtained wastewater mixture constant, the scrubber wastewater produced by bringing exhaust gas and scrubber washing water into contact with each other in a scrubber; a magnetic powder adding device that adds magnetic powder to the wastewater mixture obtained by the mixer; and a magnetic separator that magnetically separates magnetic flocs obtained by the magnetic powder adding device.
    Type: Application
    Filed: June 28, 2018
    Publication date: October 25, 2018
    Applicants: FUJI ELECTRIC CO., LTD., UTSUNOMIYA UNIVERSITY
    Inventors: Yosuke HANAI, Eiju Nakada, Yasuzo Sakai
  • Publication number: 20180284470
    Abstract: A display device (1A) according to the present invention includes a first light source, a first retro-reflective part disposed at a position in an emission direction of first light emitted from the first light source, and a first light-separating part configured to reflect a part of the first light that has passed through the first retro-reflective part as a first reflected light and transmits at least a part of the first reflected light.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Applicant: Utsunomiya University
    Inventors: Hirotsugu Yamamoto, Yutaka Tokuda, Shusei Ito, Nao Kurokawa
  • Patent number: 9991835
    Abstract: A control device for an electric compressor, capable of successfully controlling a drive motor of the compressor in response to the load fluctuation having complicated frequency components even when the motor is controlled in a sensorless manner, is provided.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: June 5, 2018
    Assignees: CALSONIC KANSEI CORPORATION, UTSUNOMIYA UNIVERSITY
    Inventors: Kensuke Osamura, Yousuke Ooneda, Mitsuo Hirata, Naoya Tashiro
  • Patent number: 9734858
    Abstract: It is possible to provide a new information recording/reproduction method and a device which can realize a small-size large-capacity memory having a characteristic equivalent to or higher than a hologram memory. The optical information recording/reproduction device includes: recording light generator (51) which generates a recording light (55) in a polarization state having two mutually orthogonal polarization components with a phase difference at an arbitrary polarization base; reproduction light generator (61) which generates a reproduction light (65) in a polarization state having only a single polarization component at a arbitrary polarization basis; recording medium (71) in which optical information is recorded by recording light (55) and the recorded optical information is reproduced by reproduction light; and optical information detector (polarimeter 81) which retrieves information light (72) after being applied to recording medium (71) and detects the light as optical information.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: August 15, 2017
    Assignee: UTSUNOMIYA UNIVERSITY
    Inventors: Daisuke Barada, Kiyonobu Tamura, Takashi Fukuda
  • Patent number: 9612193
    Abstract: An ellipsometry system and a detection unit thereof are capable of achieving miniaturization and price reduction associated therewith. The ellipsometry system includes the detection unit that: has an optical polarization element; separates an interference polarization beam obtained by causing the object-reflected polarization beam and reference reflected polarization beam to interfere with each other into a plurality of interference polarization beams on a wavelength basis; and detects the respective separated polarization components in each wavelength.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: April 4, 2017
    Assignee: UTSUNOMIYA UNIVERSITY
    Inventors: Toyohiko Yatagai, Cense J. Abraham
  • Patent number: 9612449
    Abstract: An axially symmetric polarization conversion element that converts incident light into an axially symmetric polarized beam includes a reflection section having a shape obtained by rotating the cross section of a Fresnel rhomb wave plate along the direction of an optical axis around an axis that is parallel to the optical axis. The axially symmetric polarization conversion element converts the incident light into an axially symmetric polarized beam by utilizing two Fresnel reflections by the reflection section.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: April 4, 2017
    Assignees: Saitama Medical University, Utsunomiya University
    Inventors: Toshitaka Wakayama, Toru Yoshizawa, Yukitoshi Otani
  • Patent number: 9282887
    Abstract: Provided is a three-dimensional retina image generator that can detect, in a precise manner, the scanning position displacement during scanning of the retina with a simple configuration and, as a result, and can obtain a high-quality retinal image with a reduced influence of speckle noise therein. In order to detect the movement of retina R, the three-dimensional retina image generator has: second light source unit 210 that outputs a line beam to be imaged on retina R; positional displacement detector 220 that detects the line beam reflected from retina R and that detects the “displacement” of the scanning position during scanning of retina R; and dichroic mirror 230 that causes the line beam to propagate along the same light path as that of the object light scanning beam in inspection unit 140.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: March 15, 2016
    Assignee: UTSUNOMIYA UNIVERSITY
    Inventors: Abraham J. Cense, Roy de Kinkelder
  • Patent number: 9039175
    Abstract: An optical coherence eye-fundus tomography device has a high resolution and a good operability, as well as be miniaturized and be produced at a low cost. The optical coherence eye-fundus tomography device includes: a light source unit which emits a source light beam; a reference-light unit which reflects a reference light beam; an inspection unit which illuminates an object with an object scanning light beam, reflected the object scanning light beam; and a detection unit which obtains a tomographic image of the object on the basis of the interference light beam produced by interfering the reflected reference light beam with the reflected object light beam. For example, the light source unit emits the outgoing light beam that has a depth of focus of not less than 300 ?m, and resolution that is 6 ?m×6 ?m or higher in a planar direction perpendicular to a traveling direction of the outgoing light beam.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: May 26, 2015
    Assignee: UTSUNOMIYA UNIVERSITY
    Inventors: Toyohiko Yatagai, Cense J. Abraham