Patents by Inventor Takashi Sekine

Takashi Sekine 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
  • Patent number: 10841467
    Abstract: There is provided an imaging apparatus capable of efficiently dissipating heat generated by an electronic circuit unit and eliminating noise. The imaging apparatus includes a housing 8, which includes an outer frame member 7 and an inner frame member 6 that is made of a metal, a lens unit 3, which is attached to an opening of the housing 8, a substrate 41, on which a heat dissipating wiring line is formed, an electronic circuit unit 4, which is provided in the inner frame member 6, and a fixing member 9, which is made of a metal, is in contact with the heat dissipating metal wiring line 43 in the electronic circuit unit 4 and the inner frame member 6, and fixes the electronic circuit unit 4 to the inner frame member 6. The configuration described above achieves not only efficient dissipation of the heat from the electronic circuit unit 4 via the heat dissipating metal wiring line 43 and the fixing member 9 to the inner frame member 6 but noise elimination.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: November 17, 2020
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Jyunya Sakaue, Takashi Sekine
  • 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: 10777963
    Abstract: A laser device includes a laser medium for amplifying seed light, a first optical system for outputting excitation light for exciting the laser medium and causing the excitation light to be incident on the laser medium and input to an excitation region of the laser medium, and a second optical system for causing the seed light of first polarization to be incident on the laser medium at an incidence angle larger than 0° with respect to the laser medium and input to the excitation region.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 15, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuki Kabeya, Takashi Sekine, Yoshinori Kato
  • 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
  • Patent number: 10593716
    Abstract: To provide an imaging device and an electronic component for the imaging device that are capable of achieving both electromagnetic wave shielding and heat radiation. An external connection connector of a rear housing includes a resin holding portion, and the holding portion includes a case portion connection portion that holds a metal case portion, and a shielding member connection portion that holds a metal shielding member. Accordingly, with a housing including a rear housing, and an imaging device including the housing, heat generated by an electric component can be radiated to the outside effectively with the metal case portion. Furthermore, the metal shielding member can also exert the effect of shielding a pin terminal from electromagnetic waves.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: March 17, 2020
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Takashi Sekine, Jyunya Sakaue
  • Publication number: 20200045213
    Abstract: An imaging apparatus' parts are provided with an outer frame member, an enclosure section shielding body accommodated by the outer frame member and accommodating and achieving electrically continuous connection with an imaging part, a connection that connects a metal shield of a relay connector to the imaging apparatus by contacting with an interior of the enclosure section shielding body, a barrier wall between the relay connector and the enclosure section shielding body, and a connector terminal. The connector terminal includes an internal contact section exposed to an interior of the enclosure section shielding body, and an external contact section exposed to an interior of the connector. The enclosure section shielding body is formed of a box-shaped metal shell accommodating the internal contact section in the interior. The connector has a connector section shielding body formed of a tubular metal shell accommodating the external contact section in the interior.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Junya Sakaue, Takashi Sekine
  • Publication number: 20190372299
    Abstract: A laser device includes a laser medium for amplifying seed light, a first optical system for outputting excitation light for exciting the laser medium and causing the excitation light to be incident on the laser medium and input to an excitation region of the laser medium, and a second optical system for causing the seed light of first polarization to be incident on the laser medium at an incidence angle larger than 0° with respect to the laser medium and input to the excitation region.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 5, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuki KABEYA, Takashi SEKINE, Yoshinori KATO
  • Publication number: 20190372296
    Abstract: 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: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Koichi IYAMA, Yasuki TAKEUCHI, Yuma HATANO, Takaaki MORITA, Takuto IGUCHI, Yoshinori KATO, Takashi SEKINE
  • 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: 20190068860
    Abstract: There is provided an imaging apparatus that is resistant to electromagnetic noise and can be readily manufactured at low cost. An outer frame member 7 is provided with an inner frame member 6, which is a box-shaped metal shell, to suppress influence of electromagnetic noise on the interior of the outer frame member 7. A tubular section 72 is provided with a pin shield 53, which is a tubular metal shell, to suppress influence of electromagnetic noise on the interior of the tubular section 72, which connects an external conductor to the imaging apparatus. A bad influence of external electromagnetic noise on pin terminals 52, which serve as an electrically continuous path, can be avoided. The inner frame member 6 and the pin shield 53 are members separate from each other and can therefore each be relatively readily manufactured as a press-worked metal thin plate.
    Type: Application
    Filed: November 15, 2016
    Publication date: February 28, 2019
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma SAKAMOTO, Jyunya SAKAUE, Takashi SEKINE
  • Publication number: 20190041600
    Abstract: There is provided an imaging apparatus capable of efficiently dissipating heat generated by an electronic circuit unit and eliminating noise. The imaging apparatus includes a housing 8, which includes an outer frame member 7 and an inner frame member 6 that is made of a metal, a lens unit 3, which is attached to an opening of the housing 8, a substrate 41, on which a heat dissipating wiring line is formed, an electronic circuit unit 4, which is provided in the inner frame member 6, and a fixing member 9, which is made of a metal, is in contact with the heat dissipating metal wiring line 43 in the electronic circuit unit 4 and the inner frame member 6, and fixes the electronic circuit unit 4 to the inner frame member 6. The configuration described above achieves not only efficient dissipation of the heat from the electronic circuit unit 4 via the heat dissipating metal wiring line 43and the fixing member 9 to the inner frame member 6 but noise elimination.
    Type: Application
    Filed: November 15, 2016
    Publication date: February 7, 2019
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma SAKAMOTO, Jyunya SAKAUE, Takashi SEKINE
  • 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
  • Publication number: 20180166483
    Abstract: To provide an imaging device and an electronic component for the imaging device that are capable of achieving both electromagnetic wave shielding and heat radiation. An external connection connector of a rear housing includes a resin holding portion, and the holding portion includes a case portion connection portion that holds a metal case portion, and a shielding member connection portion that holds a metal shielding member. Accordingly, with a housing including a rear housing, and an imaging device including the housing, heat generated by an electric component can be radiated to the outside effectively with the metal case portion. Furthermore, the metal shielding member can also exert the effect of shielding a pin terminal from electromagnetic waves.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 14, 2018
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Takashi Sekine, Jyunya Sakaue
  • 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