Patents by Inventor Shinichi Wakabayashi

Shinichi Wakabayashi 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: 10317769
    Abstract: In a semiconductor device connected to a first optical waveguide, a phase modulation unit, and a second optical waveguide in this order and having an optical modulator guiding light in a first direction, the phase modulation unit includes: a semiconductor layer whose length in the first direction is larger than a width in a second direction orthogonal to the first direction and which is made of monocrystalline silicon; a core part serving as an optical waveguide region formed on the semiconductor layer, and extending in the first direction; a pair of slab parts arranged on both sides of the core part in the second direction; a first electrode coupled with one of the slab parts; and a second electrode coupled with the other of the slab parts. The core part has a p type semiconductor region and an n type semiconductor region extending in the first direction, and the second direction coincides with a crystal orientation <100> of the semiconductor layer.
    Type: Grant
    Filed: April 28, 2018
    Date of Patent: June 11, 2019
    Assignee: Renesas Electronics Corporation
    Inventors: Shinichi Watanuki, Yasutaka Nakashiba, Masaru Wakabayashi
  • Patent number: 10295743
    Abstract: Disclosed is an optical semiconductor device which can be improved in light shift precision and restrained from undergoing a loss in light transmission. In this device, an inner side-surface of a first optical coupling portion of an optical coupling region and an inner side-surface of a second optical coupling portion of the region are increased in line edge roughness. This manner makes light coupling ease from a first to second optical waveguide. By contrast, the following are decreased in line edge roughness: an outer side-surface of the first optical coupling portion of the optical coupling region; an outer side-surface of the second optical coupling portion of the region; two opposed side-surfaces of a portion of the first optical waveguide, the portion being any portion other than the region; and two opposed side-surfaces of a portion of the second optical waveguide, the portion being any portion other than the region.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: May 21, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hiroyuki Kunishima, Yasutaka Nakashiba, Masaru Wakabayashi, Shinichi Watanuki, Ken Ozawa, Tatsuya Usami, Yoshiaki Yamamoto, Keiji Sakamoto
  • Patent number: 10146111
    Abstract: A light adjuster includes: a first light shield and a second light shield disposed across a central axis of an emitted light beam; a drive section; a movement mechanism configured to move the first light shield and the second light shield using a driving force; a board; and a cover member combined with the board, in which the movement mechanism includes: a pinion gear; and a first gear and a second gear configured to be rotated in conjunction with a rotation of the pinion gear, the first light shield is attached to the first gear, the second light shield is attached to the second gear, and the cover member supports the first gear and the second gear so that the first gear and the second gear are rotatable, and is combined with the board to cover the pinion gear, the first gear and the second gear.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: December 4, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akira Nemura, Shinichi Wakabayashi, Keita Tsukioka, Satoshi Chikuni
  • Patent number: 9952425
    Abstract: An optical device includes: an optical portion that has a light incident surface on which light is incident; a movable portion that supports the optical portion; a shaft portion that supports the movable portion so that the movable portion is oscillatable; and a fixing portion that is connected to the shaft portion, wherein the fixing portion has a thickness greater than the shaft portion and includes a portion of which an end not connected to the shaft portion serves as a free end.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: April 24, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Hisako Kojima, Yasushi Mizoguchi, Shinichi Wakabayashi
  • Publication number: 20180095269
    Abstract: An optical device unit that can operate very quietly and an image display apparatus having the optical device unit are provided. An optical device unit includes an optical device and a coupler joined to the optical device. The optical device includes an optical portion that is shaped as a plate and has a light incident surface on which light is incident, a movable portion that supports the optical portion, pivot portions that support the movable portion, and a support portion that supports the pivot portions. The support portion includes connection portions to which the pivot portions are connected and the connection portions are located away from the coupler.
    Type: Application
    Filed: September 7, 2017
    Publication date: April 5, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yasushi MIZOGUCHI, Hisako KOJIMA, Shinichi WAKABAYASHI
  • Publication number: 20180031956
    Abstract: A light adjuster includes: a first light shield and a second light shield disposed across a central axis of an emitted light beam; a drive section; a movement mechanism configured to move the first light shield and the second light shield using a driving force; a board; and a cover member combined with the board, in which the movement mechanism includes: a pinion gear; and a first gear and a second gear configured to be rotated in conjunction with a rotation of the pinion gear, the first light shield is attached to the first gear, the second light shield is attached to the second gear, and the cover member supports the first gear and the second gear so that the first gear and the second gear are rotatable, and is combined with the board to cover the pinion gear, the first gear and the second gear.
    Type: Application
    Filed: July 20, 2017
    Publication date: February 1, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akira NEMURA, Shinichi WAKABAYASHI, Keita TSUKIOKA, Satoshi CHIKUNI
  • Patent number: 9823553
    Abstract: An optical device includes a movable unit that supports a glass plate, axis portions that swingably support the movable unit around a swing axis, a support unit that supports the axis portions and, a permanent magnet that is provided in the movable unit, and a coil that is disposed to face the permanent magnet, and a coil support unit that is supported by the support unit and supports the coil. A conductive wire is wound around the coil and a drawn wire is drawn from the side of the inner circumference of the coil. The coil support unit includes a through hole overlapping the inner circumference of the coil and the drawn wire is inserted through the through hole.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 21, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Yasushi Mizoguchi, Shinichi Wakabayashi
  • Patent number: 9651773
    Abstract: An optical device includes a glass plate, a movable section adapted to support the glass plate, shaft sections adapted to support the movable section so as to be able to oscillate around an oscillation axis, a support section adapted to support the shaft sections, a permanent magnet provided to the movable section, and a coil disposed so as to be opposed to the permanent magnet, and generating a magnetic field acting on the permanent magnet, and the support section has a window section through which a gap between the permanent magnet and the coil can visually be recognized.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: May 16, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Yasushi Mizoguchi, Shinichi Wakabayashi
  • Publication number: 20160363840
    Abstract: An optical device includes a movable unit that supports a glass plate, axis portions that swingably support the movable unit around a swing axis, a support unit that supports the axis portions and, a permanent magnet that is provided in the movable unit, and a coil that is disposed to face the permanent magnet, and a coil support unit that is supported by the support unit and supports the coil. A conductive wire is wound around the coil and a drawn wire is drawn from the side of the inner circumference of the coil. The coil support unit includes a through hole overlapping the inner circumference of the coil and the drawn wire is inserted through the through hole.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 15, 2016
    Inventors: Yasushi MIZOGUCHI, Shinichi WAKABAYASHI
  • Patent number: 9496300
    Abstract: The imaging device disclosed herein includes: a plurality of photodetection sections having a light-receiving face, the plurality of photodetection sections being disposed in a two-dimensional array along a first direction and along a second direction different from the first direction, such that the light-receiving faces of the plurality of photodetection sections constitute an imaging plane; a transparent layer; and a plurality of spectroscopic sections having a greater refractive index than the transparent layer and being disposed in a two-dimensional array in a plane of arrangement. Zeroth order diffracted light and ±first order diffracted light, derived from light transmitted through each spectroscopic section and a portion of the transparent layer neighboring the spectroscopic section, respectively enter distinct photodetection sections among the plurality of photodetection sections.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 15, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Nakamura, Seiji Nishiwaki, Shinichi Wakabayashi, Masaaki Suzuki
  • Patent number: 9457764
    Abstract: The present invention provides a seatbelt through-anchor and device capable of preventing jamming during an emergency. A through-anchor is rotatably attached to a vehicle interior wall and is folded back after a webbing extracted from a retractor is inserted through the through-anchor. The through-anchor includes: an insertion hole including an approximately linear lower edge on which the webbing slides, and a lateral edge curving from an end part of the lower edge; a lower-side part provided below the lower edge; and a bump part extending from an end of the lower-side part, protruding beyond a surface of the lower-side part in a direction corresponding to a vehicle interior side. The bump part includes peak parts protruding the furthest in the course of separating from the lateral edge, and includes, between each of the peak parts and the lateral edge, a first sliding surface including a curved surface outwardly protruding from the through-anchor.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: October 4, 2016
    Assignee: AUTOLIV DEVELOPMENT AB
    Inventors: Shinichi Wakabayashi, Yosuke Kono, Toshihito Natori
  • Patent number: 9461276
    Abstract: An organic EL device includes: a reflective electrode; a transparent electrode opposite the reflective electrode; an organic layer including a light-emitting layer between the reflective electrode and transparent electrode; and a low refractive index layer between the reflective electrode and light-emitting layer. The low refractive index layer has a function of transporting/injecting electrons/holes, and has a lower refractive index than the light-emitting layer. Distance between the surface of the reflective electrode and a central light-emitting position of the light-emitting layer is 300 nm or less. Furthermore, ?n×d/???0.009 and ?n×d/???0.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: October 4, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuhisa Inada, Taku Hirasawa, Shinichi Wakabayashi, Masahito Yamana
  • Patent number: 9420244
    Abstract: A reflective polarizing plate apparatus includes a reflective polarizing plate that transmits first linearly polarized light and reflects second linearly polarized light polarized in a direction substantially perpendicular to the direction in which the first linearly polarized light is polarized, a holding member that accommodates and holds the reflective polarizing plate, and a first biasing member that biases a glass surface of the reflective polarizing plate accommodated in the holding member.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: August 16, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Shinichi Wakabayashi, Hirohisa Nakano, Satoru Nagarekawa
  • Publication number: 20160187645
    Abstract: An optical device includes a glass plate, a movable section adapted to support the glass plate, shaft sections adapted to support the movable section so as to be able to oscillate around an oscillation axis, a support section adapted to support the shaft sections, a permanent magnet provided to the movable section, and a coil disposed so as to be opposed to the permanent magnet, and generating a magnetic field acting on the permanent magnet, and the support section has a window section through which a gap between the permanent magnet and the coil can visually be recognized.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 30, 2016
    Inventors: Yasushi Mizoguchi, Shinichi Wakabayashi
  • Publication number: 20160137161
    Abstract: The present invention provides a seatbelt through-anchor and device capable of preventing jamming during an emergency. A through-anchor is rotatably attached to a vehicle interior wall and is folded back after a webbing extracted from a retractor is inserted through the through-anchor. The through-anchor includes: an insertion hole including an approximately linear lower edge on which the webbing slides, and a lateral edge curving from an end part of the lower edge; a lower-side part provided below the lower edge; and a bump part extending from an end of the lower-side part, protruding beyond a surface of the lower-side part in a direction corresponding to a vehicle interior side. The bump part includes peak parts protruding the furthest in the course of separating from the lateral edge, and includes, between each of the peak parts and the lateral edge, a first sliding surface including a curved surface outwardly protruding from the through-anchor.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 19, 2016
    Inventors: Shinichi Wakabayashi, Yosuke Kono, Toshihito Natori
  • Publication number: 20160124217
    Abstract: An optical device includes: an optical portion that has a light incident surface on which light is incident; a movable portion that supports the optical portion; a shaft portion that supports the movable portion so that the movable portion is oscillatable; and a fixing portion that is connected to the shaft portion, wherein the fixing portion has a thickness greater than the shaft portion and includes a portion of which an end not connected to the shaft portion serves as a free end.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 5, 2016
    Inventors: Hisako KOJIMA, Yasushi MIZOGUCHI, Shinichi WAKABAYASHI
  • Patent number: 9316786
    Abstract: A light-trapping sheet of the present disclosure includes: a light-transmitting sheet; and light-coupling structures arranged in an inner portion of the light-transmitting sheet. The light-coupling structure includes first, second and third light-transmitting layers. A refractive index of the first and second light-transmitting layers is smaller than that of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than those of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the surfaces of the light-transmitting sheet. The light-trapping sheet further includes a transparent cover sheet opposing at least one of the surfaces of the light-transmitting sheet with a gap interposed therebetween.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: April 19, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Seiji Nishiwaki, Shinichi Wakabayashi
  • Patent number: 9257469
    Abstract: An imaging apparatus 10 according to one implementation of the present invention includes: a plurality of photodetectors 5a and 5b; a transparent layer 2 provided at the side of a light-receiving surface 15a, 15b of the photodetectors 5a and 5b; a plurality of spectroscopic portions 3 provided between a light-entering surface 2a of the transparent layer 2 and the photodetectors 5a and 5b; and a plurality of high refractive index transparent members 6 provided closer to the photodetectors 5a and 5b than are the spectroscopic portions 3. The high refractive index transparent members 6 have a higher refractive index than does the transparent layer 2.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: February 9, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Nakamura, Seiji Nishiwaki, Shinichi Wakabayashi
  • Patent number: 9103978
    Abstract: A light-trapping sheet of the present disclosure includes: a plurality of light-transmitting sheets each having first and second principal surfaces; and a plurality of light-coupling structures arranged in an inner portion of each of the plurality of light-transmitting sheets at a first and second distance from the first and second principal surfaces, respectively. Each of the plurality of light-coupling structures includes a first light-transmitting layer, a second light-transmitting layer, and a third light-transmitting layer sandwiched therebetween. A refractive index of the first and second light-transmitting layers is smaller than a refractive index of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than the refractive index of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the first and second principal surfaces of the light-transmitting sheet.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: August 11, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Seiji Nishiwaki, Shinichi Wakabayashi
  • Patent number: 9051907
    Abstract: In an upright state where a vehicle is supported by a main stand, or and a tilted state where the vehicle is supported by a side stand, an inflow port of a fuel filter unit is located at a position higher than an outflow port. The fuel filter unit and the upstream side filter pipe are installed in the vehicle so that the upstream side filter pipe is arranged at a higher position as it goes toward the upstream side.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 9, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinichi Wakabayashi, Yuichi Kato, Shigeru Kita, Tomoyuki Okamoto, Masaya Adachi