Patents by Inventor Toshiyuki Kawashima

Toshiyuki Kawashima 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: 10862261
    Abstract: A laser medium unit includes: a plate-shaped laser gain medium which includes a first surface and a second surface opposite to the first surface and generates emission light by the irradiation of excitation light from the first surface; a reflection member that is provided on the second surface so as to reflect the excitation light and the emission light; and a cooling member that cools the laser gain medium. The laser gain medium includes an irradiation area which is irradiated with the excitation light and an outer area which is located outside the irradiation area when viewed from a thickness direction intersecting the first surface and the second surface. The cooling member is thermally connected to the second surface through the reflection member so that a cooling area of the laser gain medium is formed on the second surface.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: December 8, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Kenichi Ueda, Koichi Iyama, Yoshinori Kato, Takashi Sekine, Toshiyuki Kawashima
  • Publication number: 20200353426
    Abstract: A method for manufacturing a composite semipermeable membrane is capable of forming, on a surface of a porous support in a highly reproducible manner, a separation layer that is extremely thin and that exhibits superior separability. It provides, on a surface of a porous support, a composite semipermeable membrane that has an organic/inorganic hybrid separation layer that is extremely thin and that exhibits superior separability. A method for manufacturing a composite semipermeable membrane includes forming, on a surface of a porous support, a separation layer containing a cross-linked condensate having a siloxane bond by bringing an organic solution that contains an organic silicon compound containing three or more reactive functional groups, each of which is at least one type selected from a hydrolyzable group and a hydroxyl group, into contact with water or an aqueous solution on the porous support, and by performing interfacial polycondensation of the organic silicon compound.
    Type: Application
    Filed: January 23, 2019
    Publication date: November 12, 2020
    Applicants: NITTO DENKO CORPORATION, HIROSHIMA UNIVERSITY
    Inventors: Toshiyuki KAWASHIMA, Shinichi INOUE, Masahiko HIROSE, Joji OHSHITA, Toshinori TSURU, Kazuki YAMAMOTO
  • Patent number: 10826263
    Abstract: A laser medium unit includes: a plate-shaped laser gain medium which includes a first surface and a second surface opposite to the first surface and generates emission light by the irradiation of excitation light from the first surface; a reflection member that is provided on the second surface so as to reflect the excitation light and the emission light; and a cooling member that cools the laser gain medium. The laser gain medium includes an irradiation area which is irradiated with the excitation light and an outer area which is located outside the irradiation area when viewed from a thickness direction intersecting the first surface and the second surface. The cooling member is thermally connected to the second surface through the reflection member so that a cooling area of the laser gain medium is formed on the second surface.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: November 3, 2020
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kenichi Ueda, Koichi Iyama, Yoshinori Kato, Takashi Sekine, Toshiyuki Kawashima
  • Patent number: 10821403
    Abstract: The purpose of the present invention is to provide a highly reliable membrane module for removing hazardous components without the risk of a feed-source fluid and a concentrated fluid intermixing inside a hollow tube. The spiral wound separation membrane module is characterized in that: a spiral wound separation membrane element accommodated in a cylindrical container, the spiral wound separation membrane element having a structure in which a laminated body having a separation membrane, a feed-side spacer and a permeation-side spacer is wound around a porous hollow tube in a spiral shape, the feed-side spacer is positioned on a feed side of the separation membrane, the permeation-side spacer is positioned on a permeation side of the separation membrane, and a feed-side flow path and a permeation-side flow path are sealed so as not to communicate directly with each other.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: November 3, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yasuhiro Uda, Toshiyuki Kawashima
  • Patent number: 10720243
    Abstract: The laser amplification apparatus is provided with a plurality of plate-shaped laser medium components (M1 to M4) which are disposed to be aligned along a thickness direction, and prisms (P1 to P3) which optically couples the laser medium components. Each of the laser medium components is provided with a main surface to which a seed light is incident, and a side surface which surrounds the main surface. An excitation light is incident from at least one side surface of a specific laser medium component among the plurality of laser medium components. The excitation light is incident through the prism to a side surface of the laser medium component adjacent to the prism.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 21, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Sekine, Yoshinori Kato, Yasuki Takeuchi, Toshiyuki Kawashima
  • Publication number: 20200106237
    Abstract: A laser device is a laser device that includes an output unit that outputs seed light to a light amplifying unit. The output unit has a light source unit that outputs, as the seed light, rays of light with a plurality of wavelengths lying within a gain range of the light amplifying unit, and a seed light control unit that controls an intensity-time waveform of the seed light output from the light source unit.
    Type: Application
    Filed: November 21, 2017
    Publication date: April 2, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi KURITA, Yoshinori KATO, Toshiyuki KAWASHIMA
  • Publication number: 20190356105
    Abstract: A laser medium unit includes: a plate-shaped laser gain medium which includes a first surface and a second surface opposite to the first surface and generates emission light by the irradiation of excitation light from the first surface; a reflection member that is provided on the second surface so as to reflect the excitation light and the emission light; and a cooling member that cools the laser gain medium. The laser gain medium includes an irradiation area which is irradiated with the excitation light and an outer area which is located outside the irradiation area when viewed from a thickness direction intersecting the first surface and the second surface. The cooling member is thermally connected to the second surface through the reflection member so that a cooling area of the laser gain medium is formed on the second surface.
    Type: Application
    Filed: February 5, 2018
    Publication date: November 21, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kenichi UEDA, Koichi IYAMA, Yoshinori KATO, Takashi SEKINE, Toshiyuki KAWASHIMA
  • Patent number: 10374377
    Abstract: A plate-like laser medium has a through-hole for providing a flow of a cooling medium. The laser medium unit includes the plurality of laser media. A laser beam amplification device includes a laser medium unit 10, an excitation light source 21 that causes excitation light to enter the laser medium unit 10, a through-hole 16a of a window member as a unit for supplying the cooling medium in a through-hole 14a of the laser medium 14, and a cooling medium flow path F1 arranged around the laser medium unit 10.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 6, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Sekine, Yoshinori Kato, Yoshinori Tamaoki, Takashi Kurita, Toshiyuki Kawashima, Takaaki Morita
  • Publication number: 20190232423
    Abstract: A laser processing apparatus includes a light source which outputs a laser light, and a waveform control unit which controls a pulse waveform of the laser light irradiating the workpiece, in which the pulse waveform of the laser light controlled by the waveform control unit includes a main pulse and a foot pulse temporally preceding the main pulse, and a peak intensity of the foot pulse is smaller than a peak intensity of the main pulse, and a peak position of the main pulse is positioned in a retention time period of plasma generated due to an incidence of the foot pulse on the workpiece.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshio MIZUTA, Takashi KURITA, Takeshi WATARI, Yuki KABEYA, Norio KURITA, Toshiyuki KAWASHIMA
  • Publication number: 20190060837
    Abstract: The purpose of the present invention is to provide a highly reliable membrane module for removing hazardous components without the risk of a feed-source fluid and a concentrated fluid intermixing inside a hollow tube. The spiral wound separation membrane module is characterized in that: a spiral wound separation membrane element accommodated in a cylindrical container, the spiral wound separation membrane element having a structure in which a laminated body having a separation membrane, a feed-side spacer and a permeation-side spacer is wound around a porous hollow tube in a spiral shape, the feed-side spacer is positioned on a feed side of the separation membrane, the permeation-side spacer is positioned on a permeation side of the separation membrane, and a feed-side flow path and a permeation-side flow path are sealed so as not to communicate directly with each other.
    Type: Application
    Filed: October 5, 2016
    Publication date: February 28, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yasuhiro UDA, Toshiyuki KAWASHIMA
  • Patent number: 10206272
    Abstract: The present invention relates to a method for manufacturing a tracer-encapsulated solid pellet for magnetic-confinement fusion, the method comprising a liquid droplet formation step of discharging an organic liquid containing an organic solvent into a stabilizing liquid to thereby form liquid droplets 12, and an organic solvent removal step of removing the organic solvent from the liquid droplets 12A. The organic liquid to be used is a liquid having a first organic polymer containing tracer atoms and a second organic polymer being an organic polymer different from the first organic polymer dissolved in the organic solvent, wherein the first organic polymer and the second organic polymer can be mutually phase-separated.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: February 12, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Nakahiro Satoh, Ryo Yoshimura, Masaru Takagi, Toshiyuki Kawashima, Hirofumi Kan
  • Publication number: 20190002931
    Abstract: The production method of the present invention includes: a first fermentation step of adding at least one microorganism selected from yeast, Escherichia coli, and bacteria of the genus Corynebacterium to a first concentrated sugar solution to ferment the first concentrated sugar solution and subjecting the resulting first fermented solution to solid-liquid separation, the first concentrated sugar solution being obtained by using a nanofiltration membrane and/or a reverse osmosis membrane to concentrate a sugar solution obtained using a herbaceous plant of the family Gramineae or Cucurbitaceae as a raw material; and a second fermentation step of adding a second concentrated sugar solution to a solid component obtained in the first fermentation step to ferment the second concentrated sugar solution with the microorganism used in the first fermentation step, and subjecting the resulting second fermented solution to solid-liquid separation.
    Type: Application
    Filed: August 10, 2016
    Publication date: January 3, 2019
    Applicants: NITTO DENKO CORPORATION, NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
    Inventors: Kengo SASAKI, Chiaki OGINO, Akihiko KONDO, Toshiyuki KAWASHIMA, Masahiko HIROSE, Takahisa KONISHI
  • Patent number: 10133079
    Abstract: Provided is a laser device including N semiconductor laser array stacks, a prismatic optical system that shifts optical axes of luminous fluxes respectively output from the N semiconductor laser array stacks so as to decrease intervals among the luminous fluxes, and an imaging optical system that causes the luminous fluxes to be condensed and deflected for each luminous flux. The imaging optical system causes the luminous fluxes to be deflected so that the luminous fluxes overlap each other at a predetermined position and generates a light-condensing point of the luminous fluxes between the imaging optical system and the predetermined position.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: November 20, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Sekine, Toshiyuki Kawashima, Yasuki Takeuchi, Yuma Hatano
  • Patent number: 10134492
    Abstract: The device has a target supply unit 4a for supplying a target 2a to a chamber 3a, a target monitor 5a for monitoring the target 2a present inside the chamber 3a, a laser light irradiator 6a for irradiating the target 2a present inside the chamber 3a, with laser light 8a, and a controller 7a. The target supply unit 4a emits the target 2a at a timing for emitting, that is controlled by the controller 7a, into a preset emission direction 3d inside the chamber 3a, and the controller 7a calculates an irradiation point 4d with the laser light 8a, calculates a timing for arriving of the target 2a at the irradiation point 4d, and makes the laser light irradiator 6a irradiate the target with the laser light, based on the irradiation point 4d and the timing for arriving.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: November 20, 2018
    Assignees: HAMAMATSU PHOTONICS K.K., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Sekine, Toshiyuki Kawashima, Nakahiro Satoh, Yoneyoshi Kitagawa, Yoshitaka Mori, Katsuhiro Ishii, Ryohei Hanayama, Osamu Komeda, Yasuhiko Nishimura, Mitsutaka Kakeno
  • Publication number: 20180278007
    Abstract: A plate-like laser medium has a through-hole for providing a flow of a cooling medium. The laser medium unit includes the plurality of laser media. A laser beam amplification device includes a laser medium unit 10, an excitation light source 21 that causes excitation light to enter the laser medium unit 10, a through-hole 16a of a window member as a unit for supplying the cooling medium in a through-hole 14a of the laser medium 14, and a cooling medium flow path F1 arranged around the laser medium unit 10.
    Type: Application
    Filed: January 13, 2016
    Publication date: September 27, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi SEKINE, Yoshinori KATO, Yoshinori TAMAOKI, Takashi KURITA, Toshiyuki KAWASHIMA, Takaaki MORITA
  • Patent number: 10063026
    Abstract: A laser medium unit 10 in a laser beam amplification device includes a plurality of laser media 14. A cooling medium flow path F1 is provided around the laser medium unit 10 to cool the laser medium unit 10 from outside. A sealed space between the laser media 14 is filled with gas or liquid, and a laser beam for passing through the sealed space is not interfered by a cooling medium flowing outside. Therefore, a fluctuation of an amplified laser beam is prevented, and a quality such as stability and focusing characteristics of the laser beam is improved.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 28, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Sekine, Yoshinori Kato, Yoshinori Tamaoki, Takashi Kurita, Toshiyuki Kawashima, Takaaki Morita
  • Patent number: 9953729
    Abstract: A radiation generating apparatus comprises a fuel storage unit 20 for storing a mixed liquid 61, a pressure application unit 10 for applying a pressure to the mixed liquid 61, a jet formation unit 30 for forming a jet 61a of the mixed liquid 61, a reaction unit 44 for forming the jet 61a of the mixed liquid 61 therein, a pressure adjustment unit 41 for setting a pressure in the reaction unit 44 lower than an internal pressure of the jet formation unit 30, and a light source unit 45 for irradiating a particle group 63a with laser light L1.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 24, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takeshi Watari, Katsunobu Nishihara, Masaru Takagi, Nakahiro Satoh, Toshiyuki Kawashima, Hirofumi Kan
  • Publication number: 20180006423
    Abstract: A laser medium unit 10 in a laser beam amplification device includes a plurality of laser media 14. A cooling medium flow path F1 is provided around the laser medium unit 10 to cool the laser medium unit 10 from outside. A sealed space between the laser media 14 is filled with gas or liquid, and a laser beam for passing through the sealed space is not interfered by a cooling medium flowing outside. Therefore, a fluctuation of an amplified laser beam is prevented, and a quality such as stability and focusing characteristics of the laser beam is improved.
    Type: Application
    Filed: January 13, 2016
    Publication date: January 4, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi SEKINE, Yoshinori KATO, Yoshinori TAMAOKI, Takashi KURITA, Toshiyuki KAWASHIMA, Takaaki MORITA
  • Publication number: 20170341990
    Abstract: A problem to be solved is to provide a method for processing zirconia without producing a monoclinic crystal. The solution is a method for processing zirconia, including the step of irradiating the zirconia with a laser with a pulse duration of 10?12 seconds to 10?15 seconds at an intensity of 1013 to 1015 W/cm2.
    Type: Application
    Filed: August 10, 2015
    Publication date: November 30, 2017
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Osamu KOMEDA, Takuya KONDO, Toshiyuki KAWASHIMA, Hirofumi KAN, Nakahiro SATOH, Takashi SEKINE, Takashi KURITA, Atsushi SUNAHARA, Tomoyoshi MOTOHIRO, Tatsumi HIOKI, Hirozumi AZUMA, Shigeki OHSHIMA, Tsutomu KAJINO, Yoneyoshi KITAGAWA, Yoshitaka MORI, Katsuhiro ISHII, Ryohei HANAYAMA, Yasuhiko NISHIMURA, Eisuke MIURA
  • Publication number: 20170330636
    Abstract: The laser amplification apparatus is provided with a plurality of plate-shaped laser medium components (M1 to M4) which are disposed to be aligned along a thickness direction, and prisms (P1 to P3) which optically couples the laser medium components. Each of the laser medium components is provided with a main surface to which a seed light is incident, and a side surface which surrounds the main surface. An excitation light is incident from at least one side surface of a specific laser medium component among the plurality of laser medium components. The excitation light is incident through the prism to a side surface of the laser medium component adjacent to the prism.
    Type: Application
    Filed: November 18, 2015
    Publication date: November 16, 2017
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi SEKINE, Yoshinori KATO, Yasuki TAKEUCHI, Toshiyuki KAWASHIMA