Patents by Inventor Jun Izawa

Jun Izawa 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: 11355755
    Abstract: A carbonaceous material for a non-aqueous electrolyte secondary battery, having an average interplanar spacing d002 of the (002) plane within a range of 0.36 to 0.42 nm calculated by using the Bragg equation according to a wide-angle X-ray diffraction method, a specific surface area within a range of 8 to 30 m2/g obtained by a nitrogen adsorption BET three-point method, a nitrogen element content of 0.5 mass % or less, an oxygen element content of 0.3 mass % or less, and an average particle diameter of 1 to 2.8 ?m according to a laser scattering method.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 7, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Tomohiro Kawakami, Takafumi Izawa, Taketoshi Okuno, Jun-Sang Cho, Hideharu Iwasaki
  • 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
  • Patent number: 8575515
    Abstract: A laser annealing apparatus is provided that is capable of reducing irradiation unevenness of laser light caused by a refraction phenomenon of the laser light due to fluctuation in the temperature of inert gas. The laser annealing apparatus includes a gas supply unit for supplying inert gas G to at least a laser irradiation area of a workpiece, and a gas temperature controller for regulating the temperature of the inert gas G. The gas temperature controller controls the temperature of the inert gas G supplied to the laser irradiation area so as to decrease a temperature difference between the temperature of the inert gas G and the atmospheric temperature of a space (a room R) that is disposed outside the supply area of the inert gas so the temperature controlled inert gas surrounds the optical path of the laser light.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: November 5, 2013
    Assignee: IHI Corporation
    Inventors: Norihito Kawaguchi, Ryusuke Kawakami, Kenichiro Nishida, Jun Izawa, Miyuki Masaki, Masaru Morita
  • Patent number: 8395771
    Abstract: A light detection value determines concentration of a target component, without using a laser emitter of high laser intensity or a large light collector. By changing orientation of the laser emitter about a horizontal axis, or height of the laser emitter, a laser irradiation position on a ground or water surface is switched between first and second irradiation positions. A photodetector detects first scattered light scattering from the first laser beam at the first irradiation position, second scattered light scattering from the second laser beam at the first irradiation position, third scattered light scattering from the first laser beam at the second irradiation position, and fourth scattered light scattering from the second laser beam at the second irradiation position. A concentration calculator calculates concentration of a target component between the first and second irradiation positions, based on detection values of the first, second, third, and fourth scattered light.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: March 12, 2013
    Assignee: IHI Corporation
    Inventors: Jun Izawa, Yasunori Hamano, Nobuhiko Kubota
  • Publication number: 20110222063
    Abstract: A gaseous component concentration determination apparatus that can obtain a sufficiently large light detection value and determine a concentration of a target component in a desired section without using a laser emitter of a high laser intensity or a large light collector is provided.
    Type: Application
    Filed: August 4, 2009
    Publication date: September 15, 2011
    Applicant: IHI CORPORATION
    Inventors: Jun Izawa, Yasunori Hamano, Nobuhiko Kubota
  • Publication number: 20110211195
    Abstract: A sufficiently large light detection value can be obtained to determine a concentration of a target component in a desired section, without using a laser emitter of a high laser intensity or a large light collector. By changing an orientation of a laser emitter 3 about a horizontal axis or a height of the laser emitter 3, a laser irradiation position on a ground or water surface 5 is switched between a first irradiation position 5a and a second irradiation position 5b. A photodetector 9 detects first scattered light resulting from scattering of first laser beam at the first irradiation position 5a, second scattered light resulting from scattering of second laser beam at the first irradiation position 5a, third scattered light resulting from scattering of the first laser beam at the second irradiation position 5b, and fourth scattered light resulting from scattering of the second laser beam at the second irradiation position 5b.
    Type: Application
    Filed: August 3, 2009
    Publication date: September 1, 2011
    Applicant: IHI CORPORATION
    Inventors: Jun Izawa, Yasunori Hamano, Nobuhiko Kubota
  • Publication number: 20110108535
    Abstract: Provided is a laser annealing apparatus capable of reducing irradiation unevenness of laser light caused by a refraction phenomenon of laser light due to fluctuation in the temperature of inert gas. A laser annealing apparatus 1 includes a gas supply unit 10 for supplying inert gas G to at least a laser irradiation area of a workpiece 7 to be processed, and a gas temperature controller 15 for regulating the temperature of the inert gas G. The gas temperature controller 15 controls the temperature of the inert gas G supplied to the laser irradiation area so as to decrease the temperature difference between the temperature of the inert gas G and the atmospheric temperature of a space (a room R) that is disposed outside the supply area of the inert gas so as to surround the optical path of the laser light.
    Type: Application
    Filed: June 17, 2009
    Publication date: May 12, 2011
    Applicant: IHI CORPORATION
    Inventors: Norihito Kawaguchi, Ryusuke Kawakami, Kenichiro Nishida, Jun Izawa, Miyuki Masaki, Masaru Morita