Patents by Inventor Yoshinori TAMAOKI
Yoshinori TAMAOKI 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: 20240146033Abstract: A laser device includes a support, a first heat sink, a plurality of laser light sources attached to the support, and a plurality of electrodes bridged between the plurality of laser light sources and the first heat sink. Each of the plurality of laser light sources is movable with respect to the support. Each of the plurality of electrodes is electrically connected to one of the plurality of laser light sources at a first connection portion, and is thermally connected to the first heat sink at a second connection portion. In each of the plurality of electrodes, an extension part between the first connection portion and the second connection portion has flexibility, and a length of the extension part is larger than a linear distance between the first connection portion and the second connection portion.Type: ApplicationFiled: February 10, 2022Publication date: May 2, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yuma HATANO, Takashi SEKINE, Yuki MURAMATSU, Yoshinori TAMAOKI
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Publication number: 20240106182Abstract: Disclosed is a laser medium unit that includes a laser medium and a holding body. The laser medium has a pair of end surfaces. The holding body surrounds the laser medium when viewed form a direction intersecting with the pair of end surfaces and holds the laser medium. The holding body includes a deformation allowing portion that extends from the inside to the outside of the holding body when viewed from the direction intersecting with the pair of end surfaces. The laser medium and the holding body are in contact with each other. A contact region of the holding body with the laser medium has a width in the direction intersecting with the pair of end surfaces and extends along a side surface of the laser medium when viewed from the direction intersecting with the pair of end surfaces.Type: ApplicationFiled: February 3, 2022Publication date: March 28, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yuki MURAMATSU, Takashi SEKINE, Yuma HATANO, Yoshinori TAMAOKI, Masateru KURATA
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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: 10772490Abstract: A device for radiating pulsed light toward a thrombus in a blood vessel includes a light source configured to output monitoring light to be radiated into the blood vessel, a light detector configured to detect returned light of the monitoring light and output a detection signal, and a computer configured to acquire a time waveform, which is a change in an intensity of the returned light over time, based on the detection signal, wherein the computer is configured to obtain a parameter on the basis of the time waveform and evaluates a reaction in the blood vessel according to the radiation of the pulsed light on the basis of the parameter.Type: GrantFiled: September 25, 2017Date of Patent: September 15, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Daisuke Yamashita, Yutaka Yamashita, Yukio Ueda, Yoshinori Tamaoki
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Patent number: 10374377Abstract: 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: GrantFiled: January 13, 2016Date of Patent: August 6, 2019Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Sekine, Yoshinori Kato, Yoshinori Tamaoki, Takashi Kurita, Toshiyuki Kawashima, Takaaki Morita
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Publication number: 20180278007Abstract: 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: ApplicationFiled: January 13, 2016Publication date: September 27, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi SEKINE, Yoshinori KATO, Yoshinori TAMAOKI, Takashi KURITA, Toshiyuki KAWASHIMA, Takaaki MORITA
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Patent number: 10063026Abstract: 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: GrantFiled: January 13, 2016Date of Patent: August 28, 2018Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Sekine, Yoshinori Kato, Yoshinori Tamaoki, Takashi Kurita, Toshiyuki Kawashima, Takaaki Morita
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Publication number: 20180084982Abstract: A device for radiating pulsed light toward a thrombus in a blood vessel includes a light source configured to output monitoring light to be radiated into the blood vessel, a light detector configured to detect returned light of the monitoring light and output a detection signal, and a computer configured to acquire a time waveform, which is a change in an intensity of the returned light over time, based on the detection signal, wherein the computer is configured to obtain a parameter on the basis of the time waveform and evaluates a reaction in the blood vessel according to the radiation of the pulsed light on the basis of the parameter.Type: ApplicationFiled: September 25, 2017Publication date: March 29, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Daisuke YAMASHITA, Yutaka YAMASHITA, Yukio UEDA, Yoshinori TAMAOKI
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Publication number: 20180006423Abstract: 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: ApplicationFiled: January 13, 2016Publication date: January 4, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi SEKINE, Yoshinori KATO, Yoshinori TAMAOKI, Takashi KURITA, Toshiyuki KAWASHIMA, Takaaki MORITA