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).

  • Publication number: 20240146033
    Abstract: 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: Application
    Filed: February 10, 2022
    Publication date: May 2, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuma HATANO, Takashi SEKINE, Yuki MURAMATSU, Yoshinori TAMAOKI
  • Patent number: 11951677
    Abstract: A three dimensional manufactured product is manufactured A speed of filing an uncured light curing resin in a space for a next layer is enhanced, to improve a manufacturing speed. One surface of a container housing a light curing resin is configured by a gas-permeable sheet that faces the light curing resin, and transmits irradiation light of a light irradiating apparatus, and a light transmitting plate disposed at an outer side of the container from the gas permeable member. A pressurizing chamber controllable in pressure by a pressure controlling apparatus is defined between the gas-permeable sheet and the light transmitting plate. At moving a manufacturing stage, an inside of the pressurizing chamber is de-pressurized to cause the gas-permeable sheet to perform concave surface deformation, and at a time of performing light irradiation, gas in the pressurizing chamber is caused to permeate into the light curing resin by pressurizing.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: April 9, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Arai, Yasuhiro Sekine, Akio Kashiwazaki, Toshiki Ito
  • Publication number: 20240106182
    Abstract: 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: Application
    Filed: February 3, 2022
    Publication date: March 28, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuki MURAMATSU, Takashi SEKINE, Yuma HATANO, Yoshinori TAMAOKI, Masateru KURATA
  • Publication number: 20230411896
    Abstract: A connector having excellent high speed transmission performance while also having a positional misplacement accommodation function is provided. A connector includes a signal terminal including a terminal contact portion capable of making electrically contiguous contact with a first contact portion of a connection target for connection from a Z direction one side, a housing that retains the signal terminal, and a shell that surrounds at least part of the signal terminal. The shell includes a shield contact portion that makes electrically contiguous contact with a second contact portion of the connection target. The shell is able to displace in the Z direction.
    Type: Application
    Filed: October 28, 2021
    Publication date: December 21, 2023
    Inventor: Takashi Sekine
  • Publication number: 20230369813
    Abstract: A connection structure is provided that has excellent high speed transmission performance while also having a positional misplacement accommodation function. The connection structure includes a connection target, and a connector that contacts the connection target from a Z direction other side. The connection target includes an inner conductor portion, and an outer conductor portion that surrounds the inner conductor portion. The connector includes a signal terminal including a first connector contact portion, a shield member including a second connector contact portion, and a housing. The inner conductor portion includes an inner conductor contact portion capable of abutting against the first connector contact portion in the Z direction, and the outer conductor portion includes an outer conductor contact portion capable of abutting against the second connector contact portion in the Z direction.
    Type: Application
    Filed: October 28, 2021
    Publication date: November 16, 2023
    Inventor: Takashi Sekine
  • Publication number: 20230291165
    Abstract: 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: Application
    Filed: July 28, 2021
    Publication date: September 14, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori TAMAOKI, Takashi SEKINE, Yuki MURAMATSU, Yuma HATANO, Yasuki TAKEUCHI
  • Publication number: 20230261430
    Abstract: 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: Application
    Filed: January 15, 2021
    Publication date: August 17, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi SEKINE, Yuma HATANO, Yuki MURAMATSU, Yasuki TAKEUCHI, Yoshinori TAMAOKI
  • Patent number: 11678038
    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: Grant
    Filed: November 8, 2021
    Date of Patent: June 13, 2023
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Junya Sakaue, Takashi Sekine
  • Publication number: 20230063034
    Abstract: A second component (electronic component) includes a second housing, an inner conductor, an outer conductor, and an internal shell. The second housing forms the storage space together with the first housing by being attached to the first housing. The outer conductor has a cylindrical shape and annularly surrounds the inner conductor and extends in the first direction. The internal shell is disposed inside the storage space and electrically connected to the outer conductor. The internal shell has a spring piece that makes elastic contact with the outer conductor.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Inventor: Takashi Sekine
  • Publication number: 20220078320
    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: November 8, 2021
    Publication date: March 10, 2022
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Junya Sakaue, Takashi Sekine
  • Patent number: 11196903
    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: Grant
    Filed: October 8, 2019
    Date of Patent: December 7, 2021
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Tetsuma Sakamoto, Junya Sakaue, Takashi Sekine
  • Publication number: 20210313769
    Abstract: An external resonator-type semiconductor laser device 1A includes an external resonator formed of one or a plurality of laser diode light sources and a VBG; an optical fiber which outputs output light La from the laser diode light source toward the VBG, and into which return light Lb from the VBG is input; and a displacement unit that displaces a disposition position of the VBG with respect to an input and output end surface of the optical fiber.
    Type: Application
    Filed: May 31, 2019
    Publication date: October 7, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yujin ZHENG, Takashi SEKINE, Yoshinori KATO, Norio KURITA, Toshiyuki KAWASHIMA
  • Patent number: 11114810
    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: Grant
    Filed: May 29, 2019
    Date of Patent: September 7, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Koichi Iyama, Yasuki Takeuchi, Yuma Hatano, Takaaki Morita, Takuto Iguchi, Yoshinori Kato, Takashi Sekine
  • 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