Patents Assigned to Inter-University Research Institute Corporation National Institutes of Natural Sciences
  • Publication number: 20220143752
    Abstract: A laser processing device according an embodiment is a laser processing device that irradiates a processing region of a workpiece with pulsed laser light through a liquid to subject the processing region to a laser peening process or a laser forming process. The laser processing device includes: a laser irradiation unit including a laser oscillator that outputs the pulsed laser light; and an accommodation unit that includes an injection port through which the liquid is injected to the processing region, and accommodates the laser irradiation unit. A pulse width of the pulsed laser light is 200 ps to 2 ns, and the pulsed laser light output from the laser oscillator is emitted to the processing region through a liquid that is injected from the injection port.
    Type: Application
    Filed: February 13, 2020
    Publication date: May 12, 2022
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori TAIRA, Yuji SANO, Lihe ZHENG, Hwan Hong LIM
  • Publication number: 20220059982
    Abstract: An optical oscillator according to an embodiment includes a first reflecting portion that transmits light having a first wavelength and reflects light having a second wavelength different from the first wavelength, a second reflecting portion that forms an unstable resonator together with the first reflecting portion and reflect light having the second wavelength, a laser medium that is disposed between the first reflecting portion and the second reflecting portion and emits light having the second wavelength due to incidence of light having the first wavelength, and a saturable absorption portion disposed on a side opposite to the first reflecting portion when viewed from the laser medium in the one direction, the first reflecting portion includes an incidence surface on which light having the first wavelength is incident, on a side opposite to the laser medium, a size of the second reflecting portion is smaller than a size of the first reflecting portion when viewed in the one direction, at least a part of
    Type: Application
    Filed: September 13, 2019
    Publication date: February 24, 2022
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori TAIRA, Hwan Hong LIM
  • Publication number: 20220010753
    Abstract: A laser ignition device includes an excitation light source that generates excitation light, and a pulsed laser oscillator connected to the excitation light source, wherein the pulsed laser oscillator generates a plurality of pulsed light beams at a time of one ignition to produce an initial flame.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicants: IHI CORPORATION, IHI AEROSPACE Co., Ltd., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takahisa NAGAO, Mitsunori ITOU, Jun IZAWA, Yoshiki MATSUURA, Masahiro SASAKI, Takunori TAIRA
  • Publication number: 20210296840
    Abstract: A joined body (10) includes an optical material (11) and a cooling material (12) that are capable of transmitting light and are joined together. At a joining interface between the optical material (11) and the cooling material (12), the joined body (10) is capable of transmitting light, and also an atom contained in the optical material (11) diffusively enters the cooling material (12) in such a degree that an interference fringe is not generated in the joined body (10). A diffusive entry length of an atom contained in the optical material (11) into the cooling material (12) may be in a range from approximately 1.0 nm to approximately 10 ?m.
    Type: Application
    Filed: April 24, 2019
    Publication date: September 23, 2021
    Applicants: National University Corporation Kitami Institute of Technology, Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Hiroaki FURUSE, Yuki KOIKE, Ryo YASUHARA
  • Publication number: 20210221692
    Abstract: A method of producing a substance includes a producing step of producing a new substance by, in a state in which a raw material absorbing giant pulse laser light is disposed inside a base material or in a state in which the base material and the raw material are brought into contact with each other and are clamped together, performing irradiation with the giant pulse laser light such that the raw material absorbs the giant pulse laser light and thereby generating shock waves such that at least the raw material undergoes phase transition.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 22, 2021
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori TAIRA, Arvydas KAUSAS
  • Publication number: 20210011430
    Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 14, 2021
    Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
  • Patent number: 10820823
    Abstract: A more practical method for evaluating an inhibitory circuit applicable to a living body, and the use thereof. Herein the action of an inhibitory circuit on an excitatory circuit is evaluated on the basis of attenuation of the brain activity produced by activation of an excitatory circuit by the input of an inhibitory circuit by performing a step for inputting an inhibitory circuit by applying a second trigger in advance of a first trigger to an excitatory circuit activated by a first trigger which is a stimulus or challenge.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: November 3, 2020
    Assignees: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES, TOKAI OPTICAL CO., LTD.
    Inventors: Koji Inui, Yasuyuki Takeshima, Masaya Suzuki, Naoya Kumagai
  • Patent number: 10806585
    Abstract: A translucent in-vivo indwelling device with a translucent region including a rare earth doped fluorapatite.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 20, 2020
    Assignee: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori Taira, Yoichi Sato, Junichi Nabekura, Hiroaki Wake
  • Patent number: 10658155
    Abstract: A phase contrast transmission electron microscope apparatus has a long-life phase modulator, enabling changes in quantity of phase modulation, barely absorbing the electron beams, and not being influenced by irradiation of the electron beams. An electron microscope comprises an electron gun, a first laser beam irradiating process, being positioned between the electron source and an object lens, for irradiating laser beams onto the electron beams radiated from the electron gun, a second laser beam irradiating process, being positioned on a focal plane behind the object lens, for focusing and irradiating the laser beams upon the focus of the electron beams penetrating through a specimen, and a screen or a 2D electron sensor for detecting a specimen image in the form of distribution of intensity of the electron beams by an optical system.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: May 19, 2020
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventor: Yukinori Nagatani
  • Patent number: 10582876
    Abstract: The invention provides an evaluation method capable of objectively evaluating average visual perception for a comparatively long period of time when a subject looks through an eyeglass lens to be evaluated, time-dependent change in visual perception, and visual perception when looking with both eyes, and the invention provides a design method, and the invention provides a calculation method for calculating characteristics of visual perception of the subject when viewing an object through a lens.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: March 10, 2020
    Assignees: Tokai Optical Co., Ltd., Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Masaya Suzuki, Naoya Kumagai, Koji Inui, Yasuyuki Takeshima, Ryusuke Kakigi
  • Patent number: 10478085
    Abstract: The present disclosure provides an apparatus including: one or more needle-like bases enabled to be inserted into the brain; a first electrode having a first impedance and enabling an input of an electric activity of a nucleus with which the first electrode comes into contact; and a second electrode having a second impedance lower than the first impedance and being able to output an electric stimulation to the nucleus, wherein the first electrode is provided at a tip portion of at least one of the bases, and the second electrode is provided on a part of the at least one of the bases at a position identical to a position of at least one of the first electrode or on a proximal side with respect to the first electrode, in a direction along a long axis of the base on which the first electrode is provided.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: November 19, 2019
    Assignee: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Atsushi Nambu, Satomi Chiken, Yukio Nishimura, Sayuki Takara
  • Patent number: 10413717
    Abstract: A pain sensory nerve stimulation apparatus includes: an electrode portion including: a first electrode, a tip end of which is adapted to be inserted into a skin; and at lease one second electrode which is disposed in a circumference of the first electrode without being electrically conductive with the first electrode, and which is adapted to be in contact with a skin; and a pulse signal supplier, supplying a pulse signal in which an electrical polarity of the first electrode is set as a anode and an electrical polarity of the second electrode is set as a cathode.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 17, 2019
    Assignees: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES, NIHON KOHDEN CORPORATION
    Inventors: Koji Inui, Yasuyuki Takeshima, Jun Motogi, Yoshinobu Ono, Takeshi Kojima, Ryosuke Ushijima, Katsumi Nakaichi, Kazuwa Shibuya
  • Publication number: 20190258053
    Abstract: The present invention is intended to provide an adaptive optics system and an optical device that allow correction of wavefront phase aberration with higher accuracy than before and have a wider correction range than the conventional ones, regardless of the distance between the observation target and the fluctuation layer, and the size of the observation target. An adaptive optics system includes: a wavefront phase modulator that makes aberration correction to incident light and emits the corrected light; and an imaging-conjugated position adjustment mechanism that adjusts freely within a specimen the position of a surface imaging-conjugated with a fluctuation correction surface formed by the wavefront phase modulator. The imaging-conjugated position adjustment mechanism adjusts the fluctuation correction surface to be imaging-conjugated with a fluctuation layer existing in the specimen.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 22, 2019
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Masayuki HATTORI, Yosuke TAMADA, Takashi MURATA, Yasuhiro KAMEI, Mitsuyasu HASEBE, Yutaka HAYANO, Shin OYA
  • Patent number: 10374383
    Abstract: To provide a laser ignition device in which the ignition efficiency is improved and the laser pulse energy necessary for ignition is minimized by optimizing the pulse time width of laser. The laser ignition device includes: a pulse laser oscillator 1 configured to output a beam having a wavelength ? [?m] and a beam quality M2; an energy controller 2 configured to control energy of pulse laser outputted from the pulse laser oscillator 1; a lens 3 having a focal length f [mm] and configured to focus the pulse laser outputted from the pulse laser oscillator 1; and a pulse time width controller 14 configured to control a time width of the pulse laser, wherein the pulse time width controller 14 controls the time width of the pulse laser to be 0.6 to 2 ns.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: August 6, 2019
    Assignee: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori Taira, Hwan Hong Lim
  • Patent number: 10367324
    Abstract: A laser component is provided, including a laser medium and a transparent heat transmitting member, at least one of which is oxide. Bonding surfaces of the laser medium and the transparent heat transmitting member are exposed to oxygen plasma, and thereafter the bonding surfaces are brought into contact without heating. The laser medium and the transparent heat transmitting member are bonded at atomic levels, their thermal resistance is low, and no large residual stress is generated due to the bonding taking place under normal temperature. The process of oxygen plasma exposure ensures transparency of their bonding interface. The laser medium and the transparent heat transmitting member are stably bond via an amorphous layer.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 30, 2019
    Assignee: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori Taira, Arvydas Kausas, Lihe Zheng
  • Publication number: 20190229486
    Abstract: A method for manufacturing an optical element includes a bonding step of bonding a first and a second element portion to each other without interposing an adhesive therebetween. The bonding step includes: a first step of fixing the first and the second element portion with an intermediate layer disposed between these portion, the intermediate layer containing an element substitutable for a constituent element of a bonded portion in the first and the second element portion, the intermediate layer being colored; and a second step of integrating a part of the intermediate layer with the first and the second element portion, and making a part of the intermediate layer transparent to laser light by irradiating the intermediate layer with giant pulse laser light and causing it to be absorbed into the intermediate layer after the first step.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori TAIRA, Arvydas KAUSAS
  • Patent number: 10351882
    Abstract: There is provided a method for generating an oil/fat component, in which salt-tolerant algae are cultured in a culture medium of which the salt concentration has been increased in a stepwise manner.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 16, 2019
    Assignees: National University Corporation KOBE University, Inter-University Research Institute Corporation National Institutes of Natural Sciences, DIC Corporation
    Inventors: Akihiko Kondo, Tomohisa Hasunuma, Shih-hsin Ho, Jun Minagawa, Haruo Nishie, Hiroyuki Taroda, Jo-Shu Chang
  • Publication number: 20190122855
    Abstract: A phase contrast transmission electron microscope apparatus has a long-life phase modulator, enabling changes in quantity of phase modulation, barely absorbing the electron beams, and not being influenced by irradiation of the electron beams. An electron microscope comprises an electron gun, a first laser beam irradiating process, being positioned between the electron source and an object lens, for irradiating laser beams onto the electron beams radiated from the electron gun, a second laser beam irradiating process, being positioned on a focal plane behind the object lens, for focusing and irradiating the laser beams upon the focus of the electron beams penetrating through a specimen, and a screen or a 2D electron sensor for detecting a specimen image in the form of distribution of intensity of the electron beams by an optical system.
    Type: Application
    Filed: March 28, 2017
    Publication date: April 25, 2019
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventor: Yukinori NAGATANI
  • Patent number: 10254538
    Abstract: The present invention is intended to provide an adaptive optics system and an optical device that allow correction of wavefront phase aberration with higher accuracy than before and have a wider correction range than the conventional ones, regardless of the distance between the observation target and the fluctuation layer, and the size of the observation target. An adaptive optics system includes: a wavefront phase modulator that makes aberration correction to incident light and emits the corrected light; and an imaging-conjugated position adjustment mechanism that adjusts freely within a specimen the position of a surface imaging-conjugated with a fluctuation correction surface formed by the wavefront phase modulator. The imaging-conjugated position adjustment mechanism adjusts the fluctuation correction surface to be imaging-conjugated with a fluctuation layer existing in the specimen.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: April 9, 2019
    Assignee: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Masayuki Hattori, Yosuke Tamada, Takashi Murata, Yasuhiro Kamei, Mitsuyasu Hasebe, Yutaka Hayano, Shin Oya
  • Publication number: 20190097117
    Abstract: A low-noise wide band amplifier is realized utilizing a superconductor-insulator-superconductor (SIS) junction, quasiparticle frequency mixers connected in tandem or in cascade, a first quasiparticle mixer performs first frequency mixing with use of a first local signal having a frequency not less than twice a frequency of an input signal to the first quasiparticle mixer, a second quasiparticle mixer performs second frequency mixing with use of a second local signal having a frequency not more than twice a frequency of an input signal to the second quasiparticle mixer, and signal amplification is performed through frequency conversion by extracting, from among a plurality of signals generated with the first and the second frequency mixing, a signal in a frequency band not more than a frequency band of the signal before the first frequency mixing and the second frequency mixing, using a transmission line or a filter.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 28, 2019
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Yoshinori UZAWA, Takafumi KOJIMA