Patents by Inventor Yasuki TAKEUCHI
Yasuki TAKEUCHI 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).
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Publication number: 20230291165Abstract: A laser device includes a vacuum container including a wall portion, a laser medium disposed inside the vacuum container, a cooler disposed outside the vacuum container, and a heat conductor penetrating the wall portion in a predetermined direction and connected to the laser medium and the cooler.Type: ApplicationFiled: July 28, 2021Publication date: September 14, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshinori TAMAOKI, Takashi SEKINE, Yuki MURAMATSU, Yuma HATANO, Yasuki TAKEUCHI
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Publication number: 20230261430Abstract: An optical amplification device includes: a laser medium that amplifies input light to generate output light; an excitation light source that supplies excitation light used for amplifying the input light, to the laser medium; a resonator that includes a pair of first optical elements and disposed to optically face each other with the laser medium interposed between the first optical elements and that resonates generated light generated in the laser medium through the supply of the excitation light; and an optical switch disposed on an optical path of the resonator between the pair of first optical elements.Type: ApplicationFiled: January 15, 2021Publication date: August 17, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi SEKINE, Yuma HATANO, Yuki MURAMATSU, Yasuki TAKEUCHI, Yoshinori TAMAOKI
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Patent number: 11114810Abstract: A laser device includes a first laser medium and a second laser medium that have a first surface and a second surface opposite to the first surface, and receive input of excitation light and seed light from the first surface side to amplify the seed light, a holder that holds the first laser medium and the second laser medium; and a pair of cooling units that cool the first laser medium and the second laser medium according to change in volume of a refrigerant.Type: GrantFiled: May 29, 2019Date of Patent: September 7, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Koichi Iyama, Yasuki Takeuchi, Yuma Hatano, Takaaki Morita, Takuto Iguchi, Yoshinori Kato, Takashi Sekine
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Patent number: 10720243Abstract: 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: GrantFiled: November 18, 2015Date of Patent: July 21, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Sekine, Yoshinori Kato, Yasuki Takeuchi, Toshiyuki Kawashima
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Publication number: 20190372296Abstract: A laser device includes a first laser medium and a second laser medium that have a first surface and a second surface opposite to the first surface, and receive input of excitation light and seed light from the first surface side to amplify the seed light, a holder that holds the first laser medium and the second laser medium; and a pair of cooling units that cool the first laser medium and the second laser medium according to change in volume of a refrigerant.Type: ApplicationFiled: May 29, 2019Publication date: December 5, 2019Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Koichi IYAMA, Yasuki TAKEUCHI, Yuma HATANO, Takaaki MORITA, Takuto IGUCHI, Yoshinori KATO, Takashi SEKINE
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Patent number: 10133079Abstract: 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: GrantFiled: May 23, 2014Date of Patent: November 20, 2018Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Sekine, Toshiyuki Kawashima, Yasuki Takeuchi, Yuma Hatano
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Publication number: 20170330636Abstract: 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: ApplicationFiled: November 18, 2015Publication date: November 16, 2017Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi SEKINE, Yoshinori KATO, Yasuki TAKEUCHI, Toshiyuki KAWASHIMA
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Publication number: 20160370593Abstract: 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: ApplicationFiled: May 23, 2014Publication date: December 22, 2016Inventors: Takashi SEKINE, Toshiyuki KAWASHIMA, Yasuki TAKEUCHI, Yuma HATANO
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Patent number: 9337634Abstract: A wire harness includes a wire harness main body and a protective member. The wire harness main body includes a trunk line and a branch line branching from the trunk line. In a state where a non-woven member covers the trunk line and a base end of the branch line, the protective member is formed by hot pressing a portion of the non-woven member covering at least the trunk line. A portion of the protective member covering the base end of the branch line is formed to be more pliable than a portion covering the trunk line.Type: GrantFiled: October 2, 2013Date of Patent: May 10, 2016Assignee: SUMITOMO MIRING SYSTEMS, LTD.Inventors: Takeshi Sato, Isamu Hamamoto, Tetsuya Sonoda, Osamu Satou, Yasuki Takeuchi
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Publication number: 20140144698Abstract: A wire harness includes a wire harness main body and a protective member. The wire harness main body includes a trunk line and a branch line branching from the trunk line. In a state where a non-woven member covers the trunk line and a base end of the branch line, the protective member is formed by hot pressing a portion of the non-woven member covering at least the trunk line. A portion of the protective member covering the base end of the branch line is formed to be more pliable than a portion covering the trunk line.Type: ApplicationFiled: October 2, 2013Publication date: May 29, 2014Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Takeshi SATO, Isamu HAMAMOTO, Tetsuya SONODA, Osamu SATOU, Yasuki TAKEUCHI