Patents by Inventor Takeru Utsugi

Takeru Utsugi 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: 20230409949
    Abstract: One preferred aspect of the invention is a quantum computer of a semiconductor, including: a semiconductor crystalline substrate; a gate electrode array structure formed on a surface of the semiconductor crystalline substrate; and a reservoir unit that is a carrier supply unit, in which a classic potential barrier is formed in the semiconductor crystalline substrate by controlling an applied voltage to the gate electrode array structure, and a charge supplied from the reservoir unit is transported into the classic potential barrier.
    Type: Application
    Filed: February 28, 2023
    Publication date: December 21, 2023
    Inventors: Takeru UTSUGI, Noriyuki LEE, Ryuta TSUCHIYA, Digh HISAMOTO, Toshiyuki MINE
  • Publication number: 20230394348
    Abstract: The invention addresses providing a technology that enables it to restrain a temperature rise because of current consumed by a quantum semiconductor and wiring conductors for control. A quantum calculator disclosed herein comprises a first refrigeration tube to cool a metal body; a refrigerator framing which encloses inside the metallic body and the first refrigeration tube; a quantum bit array chip having a plurality of silicon-spin quantum bits; and multiple control wiring conductors to drive the quantum bit array chip. The quantum bit array chip is placed on the metal body and made up of multiple regions and sub-regions, each of the regions performing a quantum operation independently. The multiple control wiring conductors are connected to the multiple regions and sub-regions respectively as multiple groups of control wiring conductors. The multiple control wring conductors are disposed across the first refrigeration tube.
    Type: Application
    Filed: February 28, 2023
    Publication date: December 7, 2023
    Inventors: Satoru AKIYAMA, Takeru UTSUGI, Yusuke WACHI, Satoshi MURAOKA
  • Publication number: 20230060883
    Abstract: A defect inspection apparatus includes a first objective lens having an optical axis is perpendicular to a wafer mounting surface of the stage, a second objective lens having an optical axis forms a predetermined acute angle with respect to the wafer mounting surface of the stage, and a dichroic mirror which reflects light having a first wavelength and transmits or reflects light having a second wavelength. Emitted light of a first optical path 111 from a first light source which is reflected from or transmitted through the dichroic mirror and first emitted light and second emitted light polarized and separated from a second light source which are transmitted through or reflected from the dichroic mirror are incident on the first objective lens, and emitted light of a second optical path from the first light source is incident on the second objective lens.
    Type: Application
    Filed: March 31, 2020
    Publication date: March 2, 2023
    Inventors: Takeru UTSUGI, Toshifumi HONDA, Andreas KARSAKLIAN DAL BOSCO, Tomoto KAWAMURA, Kenshiro OHTSUBO
  • Publication number: 20220413204
    Abstract: According to the invention, a light guide plate-type video display device and a video display system that are capable of displaying a video with less color deviation and less video distortion are provided. A video display device 101 configured to display a video includes a video projection unit 200 configured to project video light, a video deflection unit 210, and a light guide portion 230. The video deflection unit 210 deflects video light emitted by the video projection unit 200 and causes the video light to propagate to the light guide portion 230, and the light guide portion 230 causes the entered video light to propagate therein and outputs the video light. Here, the video deflection unit 210 or the light guide portion 230 is configured to reduce color dispersion of the video light outputted from the light guide portion 230.
    Type: Application
    Filed: October 6, 2020
    Publication date: December 29, 2022
    Inventors: Ryuji UKAI, Takahiro MOURI, Takeru UTSUGI, Toshiteru NAKAMURA, Takuma KUNO, Masahito UCHIYAMA
  • Patent number: 11513473
    Abstract: Provided is a waveguide having a light diffraction unit that diffracts incident light by a multiplex-recorded hologram, in which, in the light diffraction unit, a plurality of holograms having different angles with respect to an incident surface of the waveguide are formed, and when certain parallel light beams are incident, different wavelengths are diffracted by the plurality of holograms.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 29, 2022
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Takeru Utsugi, Hiromichi Yamakawa
  • Patent number: 11493759
    Abstract: It is an objective of this disclosure to protect a highly transparent hologram light guide plate from water vapor and ultraviolet ray, thereby suppressing deterioration of the hologram light guide plate even when employed in a head mount display used in outdoor environments. A hologram light guide plate according to this disclosure comprises a protection layer that protects a hologram layer and an intermediate layer that is placed between a glass layer and the protection layer, wherein the glass layer and the hologram layer form a transfer layer that transfers image light. The intermediate layer causes the image light to transfer only in the transfer layer in a section from an input area of the image light to an output area of the image light.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: November 8, 2022
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Tomoto Kawamura, Takeru Utsugi, Mitsuru Nagasawa, Hiromichi Yamakawa
  • Patent number: 11428939
    Abstract: The present invention provides a light-guiding plate which is applicable to incident rays over a wide ray angular range and wide wavelength rage, and is able to suppress a decrease in optical efficiency. A light-guiding plate 200 having a light diffracting portion 1200 for diffracting incident light by a multiple-recorded hologram is configured such that, in the light diffracting portion, when light 1210 of a single wavelength having a certain angular range is incident, at least two or more outgoing rays 1220 are discretely emitted with a first angular space ?s, and the emitted rays each have a second angular range ?a, and the first angular space ?s is equal to or larger than the second angular range ?a.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: August 30, 2022
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Takeru Utsugi, Ryuji Ukai
  • Publication number: 20210382309
    Abstract: An objective of the present disclosure is to provide an image display device capable of (1) improving light utilization efficiency in a waveguide direction, and (2) overcoming a trade-off relationship between FoV and an eye-box in a non-waveguide direction. In the image display device according to the present disclosure, the waveguide includes a first angle conversion region for angular conversion of first image light, and a second angle conversion region for angular conversion of second image light in a direction different from the first image light.
    Type: Application
    Filed: May 24, 2021
    Publication date: December 9, 2021
    Inventors: Takeru UTSUGI, Tomoto KAWAMURA
  • Publication number: 20210165224
    Abstract: The purpose of the present invention is to provide a waveguide, a method for manufacturing the waveguide, and an image display device using the same, which can be applied to incident light with a wide light angle range and a wide wavelength range, and can suppress a decrease in optical efficiency while maintaining high see-through performance. In order to achieve the above purpose, the waveguide has a light diffraction unit that diffracts the incident light by a multiplex-recorded hologram, wherein the light diffraction unit has at least two regions, and the light diffraction unit diffracts light of different wavelengths by the respective regions when certain parallel light ray is incident.
    Type: Application
    Filed: July 2, 2019
    Publication date: June 3, 2021
    Inventor: Takeru UTSUGI
  • Publication number: 20210055693
    Abstract: Provided is a waveguide having a light diffraction unit that diffracts incident light by a multiplex-recorded hologram, in which, in the light diffraction unit, a plurality of holograms having different angles with respect to an incident surface of the waveguide are formed, and when certain parallel light beams are incident, different wavelengths are diffracted by the plurality of holograms.
    Type: Application
    Filed: May 14, 2020
    Publication date: February 25, 2021
    Inventors: Takeru UTSUGI, Hiromichi YAMAKAWA
  • Publication number: 20210033864
    Abstract: It is an objective of this disclosure to protect a highly transparent hologram light guide plate from water vapor and ultraviolet ray, thereby suppressing deterioration of the hologram light guide plate even when employed in a head mount display used in outdoor environments. A hologram light guide plate according to this disclosure comprises a protection layer that protects a hologram layer and an intermediate layer that is placed between a glass layer and the protection layer, wherein the glass layer and the hologram layer form a transfer layer that transfers image light. The intermediate layer causes the image light to transfer only in the transfer layer in a section from an input area of the image light to an output area of the image light.
    Type: Application
    Filed: June 16, 2020
    Publication date: February 4, 2021
    Inventors: Tomoto KAWAMURA, Takeru UTSUGI, Mitsuru NAGASAWA, Hiromichi YAMAKAWA
  • Publication number: 20210003763
    Abstract: A hologram recording device for producing a hologram that diffracts incident light includes: a laser light source; a first half-wave plate that controls a polarization direction of a light beam emitted from the laser light source; a polarizing beam splitter that reflects S-polarized light to emit the S-polarized light as an “A” light ray and transmits P-polarized light to emit the P-polarized light as a “B” light ray with respect to the light beam passing through the first half-wave plate, and splits the light beam in two directions; a first wedge prism mirror that reflects the “A” light ray; a second half-wave plate that polarizes the “B” light ray into S-polarized light; a second wedge prism mirror that reflects the S-polarized light polarized by the second half-wave plate; and a recording medium irradiated with light rays reflected by the first wedge prism mirror and the second wedge prism mirror.
    Type: Application
    Filed: April 15, 2020
    Publication date: January 7, 2021
    Inventors: Mayumi SASAKI, Takeru UTSUGI
  • Publication number: 20200278546
    Abstract: The present invention provides a light-guiding plate which is applicable to incident rays over a wide ray angular range and wide wavelength rage, and is able to suppress a decrease in optical efficiency. A light-guiding plate 200 having a light diffracting portion 1200 for diffracting incident light by a multiple-recorded hologram is configured such that, in the light diffracting portion, when light 1210 of a single wavelength having a certain angular range is incident, at least two or more outgoing rays 1220 are discretely emitted with a first angular space ?s, and the emitted rays each have a second angular range ?a, and the first angular space ?s is equal to or larger than the second angular range ?a.
    Type: Application
    Filed: November 22, 2018
    Publication date: September 3, 2020
    Inventors: Takeru UTSUGI, Ryuji UKAI
  • Patent number: 10649118
    Abstract: This imaging device comprises: an image sensor which converts an optical image, captured by pixels arranged in an array on an imaging surface, into an image signal and outputs the image signal; a modulation unit which is provided to a light-receiving surface of the image sensor and modulates the intensity of light; and an image processing unit which carries out image processing on an output image output by the image sensor. The modulation unit has a grating substrate and a first grating pattern formed on a first surface of the grating substrate facing a surface of the image sensor near the light-receiving surface. The grating pattern is configured from a plurality of concentric circles having pitches which are inversely proportional to the distance from the origin point of at least one reference coordinate, the concentric circles do not overlap with each other within the grating pattern.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: May 12, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Kazuyuki Tajima, Takeshi Shimano, Takeru Utsugi
  • Publication number: 20190278006
    Abstract: This imaging device comprises: an image sensor which converts an optical image, captured by pixels arranged in an array on an imaging surface, into an image signal and outputs the image signal; a modulation unit which is provided to a light-receiving surface of the image sensor and modulates the intensity of light; and an image processing unit which carries out image processing on an output image output by the image sensor. The modulation unit has a grating substrate and a first grating pattern formed on a first surface of the grating substrate facing a surface of the image sensor near the light-receiving surface. The grating pattern is configured from a plurality of concentric circles having pitches which are inversely proportional to the distance from the origin point of at least one reference coordinate, the concentric circles do not overlap with each other within the grating pattern.
    Type: Application
    Filed: May 17, 2017
    Publication date: September 12, 2019
    Inventors: Kazuyuki TAJIMA, Takeshi SHIMANO, Takeru UTSUGI
  • Patent number: 9841731
    Abstract: To reduce an influence of stray light and stably record/reproduce high-quality data in holographic recording/reproduction. A holographic memory device includes an optical system that guides a reference beam to an optical information recording medium at a desired angle of incidence, a control part that controls the angle of incidence of the reference beam generated in the optical system, and a lens part that images the reference beam in a desired position of the optical information recording medium. Further, at least a first light beam at a first angle and a second light beam at a second angle different from the first angle are output from the optical element, and the optical element is provided so that the first light beam may propagate within an effective diameter of the lens part and the second light beam may propagate to an outside of the effective diameter of the lens part.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: December 12, 2017
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Takeru Utsugi, Kazuyoshi Yamazaki
  • Patent number: 9769442
    Abstract: A method for displaying information on a screen includes modifying tone values to compress the tone of a main image; projecting by a first projector the main image with compressed tones generated with a first polarization component; modifying tone values of a sub-image for correcting tones of the sub-image; generating a correction image; and projecting by a second projector the correction image with a second polarization component different from the first polarization component over the main image projected by the first projector such that the main image is buried by an overlapped projection of the main image and the correction image generated by using the sub-image and an offset value to provide the sub-image to a viewer with a naked eye and to provide the main image to another viewer with a polarizer.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 19, 2017
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Akihiko Shirai, Kazuhisa Yanaka, Takeru Utsugi
  • Publication number: 20170006268
    Abstract: A method for displaying information on a screen includes modifying tone values to compress the tone of a main image; projecting by a first projector the main image with compressed tones generated with a first polarization component; modifying tone values of a sub-image for correcting tones of the sub-image; generating a correction image; and projecting by a second projector the correction image with a second polarization component different from the first polarization component over the main image projected by the first projector such that the main image is buried by an overlapped projection of the main image and the correction image generated by using the sub-image and an offset value to provide the sub-image to a viewer with a naked eye and to provide the main image to another viewer with a polarizer.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 5, 2017
    Inventors: Akihiko Shirai, Kazuhisa Yanaka, Takeru Utsugi
  • Patent number: 9443491
    Abstract: An information display apparatus includes main image tone value modification means for modifying a tone value to compress a tone of a main image, first projection means for projecting the main image having the compressed tone by the main image tone value modification part with a first polarization component, sub-image tone value modification means for compressing tones of the sub-image, then modifying tone values of the sub-image by adding to the tone values after the compression an offset value, the offset value being not less than the maximum tone value of the main image having the compressed tone, correction image generation means for generating the correction image formed by subtracting the tone values of the main image having the compressed tone from the tone values modified by the sub-image tone value modification means, and second projection means for projecting the correction image with a second polarization component different from the first polarization component overlaying to the main image project
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: September 13, 2016
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Akihiko Shirai, Kazuhisa Yanaka, Takeru Utsugi
  • Publication number: 20160041525
    Abstract: To reduce an influence of stray light and stably record/reproduce high-quality data in holographic recording/reproduction. A holographic memory device includes an optical system that guides a reference beam to an optical information recording medium at a desired angle of incidence, a control part that controls the angle of incidence of the reference beam generated in the optical system, and a lens part that images the reference beam in a desired position of the optical information recording medium. Further, at least a first light beam at a first angle and a second light beam at a second angle different from the first angle are output from the optical element, and the optical element is provided so that the first light beam may propagate within an effective diameter of the lens part and the second light beam may propagate to an outside of the effective diameter of the lens part.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 11, 2016
    Inventors: Takeru UTSUGI, Kazuyoshi YAMAZAKI