Patents by Inventor Kohei Tanaka

Kohei Tanaka 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: 9745166
    Abstract: A bobbin for winding an optical fiber includes a main winding drum having a cylindrical shape, an auxiliary flange portion that is provided on at least one of a first end and a second end of the main winding drum in an axis direction of the main winding drum, a first main flange portion that has a larger diameter than the external diameter of the auxiliary flange portion and that is provided on the main winding drum to face the auxiliary flange portion, a second main flange portion that is provided on the main winding drum to face the first main flange portion, and an auxiliary winding drum that is provided between the first main flange portion and the auxiliary flange portion.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: August 29, 2017
    Assignee: FUJIKURA LTD.
    Inventors: Yukinari Shirako, Balasubramaniam Vasudevan, Kohei Tanaka, Kazunari Saito
  • Publication number: 20170236686
    Abstract: An apparatus provided with a wafer processing chamber that houses a wafer supporting mechanism supporting a wafer and is used to irradiate the wafer supported by the wafer supporting mechanism with an ion beam and a transport mechanism housing chamber that houses a transport mechanism provided underneath the wafer processing chamber and used for moving the wafer supporting mechanism in a substantially horizontal direction, wherein an aperture used for moving the wafer supporting mechanism along with a coupling member coupling the wafer supporting mechanism to the transport mechanism is formed in the direction of movement of the transport mechanism in a partition wall separating the wafer processing chamber from the transport mechanism housing chamber.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: Shinya HISADA, Kohei TANAKA, Shigehisa TAMURA, Makoto NAKAYA
  • Patent number: 9696799
    Abstract: An information display device that displays plural pieces of display information on a screen while laying out these pieces of display information, including: a gaze judger that judges whether or not the user is gazing at the screen; a display area change detector that detects a change of the display area of the display information; a display area determinator that, when a change of the display area is detected when the user is gazing at the screen, determines a display area according to a ratio of the change of the display area; and a display information display that displays the display information according to the display area of the display information. Even when the layout of the display information is changed in a state in which the user is not gazing at the screen, a change from a state in which an original display is produced is displayed when the user is gazing at the screen.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: July 4, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kohei Tanaka
  • Publication number: 20170087671
    Abstract: Disclosed herein is a laser processing apparatus including first and second laser mechanisms, a laser oscillator for oscillating an original laser beam, an optical system for branching the original laser beam into first and second laser beams, and first and second operation panels for respectively setting first and second processing conditions for the first and second laser mechanisms. The first and second laser mechanisms include first and second chuck tables for holding first and second workpieces, first and second X moving units for moving the first and second chuck tables in an X direction, first and second Y moving units for moving the first and second chuck tables in a Y direction perpendicular to the X direction, and first and second focusing units for focusing the first and second laser beams to the first and second workpieces held on the first and second chuck tables, respectively.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 30, 2017
    Inventors: Kohei Tanaka, Hidetoshi Mannami, Hisatoshi Fujisawa, Hiroshi Nomura, Wakana Onoe, Taiki Sawabe
  • Publication number: 20170087663
    Abstract: A laser processing apparatus includes a first chuck table for holding a first workpiece, moving units for moving the first chuck table in X and Y directions, and a first focusing unit for focusing a first laser beam to the first workpiece. A second chuck table holds a second workpiece. Other moving units move the second chuck table in the X direction and Y directions, and a second focusing unit focuses a second laser beam to the second workpiece. A laser oscillator produces an original laser beam, and an optical system branches the original laser beam into the first laser beam and the second laser beam, and leads the first and second laser beams to the first and second focusing units, respectively.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Inventors: Wakana Onoe, Taiki Sawabe, Hiroshi Nomura, Hisatoshi Fujisawa, Hidetoshi Mannami, Kohei Tanaka
  • Publication number: 20160370635
    Abstract: A technique is provided that reduces dullness of a potential provided to a line such as gate line on an active-matrix substrate to enable driving the line at high speed and, at the same time, reduces the size of the picture frame region. On an active-matrix substrate (20a) are provided gate lines (13G) and source lines. On the active-matrix substrate (20a) are further provided: gate drivers (11) each including a plurality of switching elements, at least one of which is located in a pixel region, for supplying a scan signal to a gate line (13G); and lines (15L1) each for supplying a control signal to the associated gate driver (11). A control signal is supplied by a display control circuit (4) located outside the display region to the gate drivers (11) via the lines (15L1). In response to a control signal supplied, each gate driver (11) drives the gate line (13G) to which it is connected.
    Type: Application
    Filed: August 31, 2016
    Publication date: December 22, 2016
    Inventors: Kohei TANAKA, Hidefumi YOSHIDA, Takeshi NOMA, Ryo YONEBAYASHI, Takayuki NISHIYAMA, Mitsuhiro MURATA, Yosuke IWATA
  • Patent number: 9384707
    Abstract: A display device including optical sensors in a pixel region, in which the number of bus lines for supplying driving signals to the optical sensors is reduced, is provided. The display device includes a display pixel circuit (8) and a sensor pixel circuit (9) that are provided in a pixel region (4) of an active matrix substrate. The sensor pixel circuit (9) includes: a light receiving element (D1); an accumulation node for accumulating charges corresponding to an amount of light incident on the light receiving element (D1); and a readout switching element (T2) that reads out charges in the accumulation node.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: July 5, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohei Tanaka, Yasuhiro Sugita
  • Publication number: 20160167918
    Abstract: A bobbin for winding an optical fiber includes a main winding drum having a cylindrical shape, an auxiliary flange portion that is provided on at least one of a first end and a second end of the main winding drum in an axis direction of the main winding drum, a first main flange portion that has a larger diameter than the external diameter of the auxiliary flange portion and that is provided on the main winding drum to face the auxiliary flange portion, a second main flange portion that is provided on the main winding drum to face the first main flange portion, and an auxiliary winding drum that is provided between the first main flange portion and the auxiliary flange portion.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Applicant: FUJIKURA LTD.
    Inventors: Yukinari SHIRAKO, Balasubramaniam VASUDEVAN, Kohei TANAKA, Kazunari SAITO
  • Publication number: 20150293546
    Abstract: A technique is provided that reduces dullness of a potential provided to a line such as gate line on an active-matrix substrate to enable driving the line at high speed and, at the same time, reduces the size of the picture frame region. On an active-matrix substrate (20a) are provided gate lines (13G) and source lines. On the active-matrix substrate (20a) are further provided: gate drivers (11) each including a plurality of switching elements, at least one of which is located in a pixel region, for supplying a scan signal to a gate line (13G); and lines (15L1) each for supplying a control signal to the associated gate driver (11). A control signal is supplied by a display control circuit (4) located outside the display region to the gate drivers (11) via the lines (15L1). In response to a control signal supplied, each gate driver (11) drives the gate line (13G) to which it is connected.
    Type: Application
    Filed: October 30, 2013
    Publication date: October 15, 2015
    Inventors: Kohei Tanaka, Hidefumi Yoshida, Takeshi Noma, Ryo Yonebayashi, Takayuki Nishiyama, Mitsuhiro Murata, Yosuke Iwata
  • Patent number: 9069412
    Abstract: Provided is a display device having a photodetecting element in a pixel, and having an input function that is not dependent on light environments. This is a display device having an optical sensor in a pixel region. The optical sensor includes a first sensor pixel circuit that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an ON time of a light source for the sensor; and a second sensor pixel circuit that that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an OFF time of the light source. A sensor driving circuit for driving the first sensor pixie circuit and the second sensor pixel circuit supplies reset signals (RST1, RST2) to the first sensor pixel circuit and the second sensor pixel circuit, respectively, during vertical flyback periods in pixel display in the pixel region.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 30, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohei Tanaka, Yasuhiro Sugita, Kazuhiro Maeda, Hiroaki Sugiyama
  • Patent number: 9064460
    Abstract: Provided is a display device that has a photodetection element in a pixel, and has an input function that is not dependent on the light environment. The display device includes a photosensor in a pixel region. The photosensor includes a first sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when a light source for the sensor is lit, and a second sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when the light source is extinguished.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 23, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Sugita, Kohei Tanaka, Naru Usukura, Tadashi Nemoto, Hiromi Katoh
  • Patent number: 9041699
    Abstract: Provided is a display device that has a photodetection element in a pixel and can automatically correct a photosensor signal during operation, while resolving offset error with respect to the true black level or white level. As operation modes, a sensor row driver (5) has: (a) a sensor drive mode in which a sensor drive signal of a first pattern is supplied, and a photosensor signal that corresponds to the amount of light received by the photosensor is output to a signal processing circuit (8), and (b) a correction data acquisition mode in which a sensor drive signal of a second pattern that is different from the first pattern is supplied, and a correction photosensor signal level that corresponds to the case where the photosensor detected a black level or a white level is acquired. The photosensor signal levels obtained in the two modes while the ambient environment is controlled to a predetermined condition are stored in a memory.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: May 26, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Sugita, Kohei Tanaka, Naru Usukura, Tadashi Nemoto, Hiromi Katoh
  • Patent number: 9001096
    Abstract: Provided is a display device that has excellent accuracy in image capturing by improving linearity of sensitivity characteristics of a photodiode. An optical sensor provided on an active matrix substrate of the display device includes; a photodiode (D1a) for receiving incident light; a reset signal line (RSTa) for supplying a reset signal RST to the optical sensor; a readout signal line (RWSa) for supplying a readout signal RWS to the optical sensor; and a sensor switching element (M1a) for reading out a photoelectric current output from the photodiode (D1a), according to the readout signal, during a period from the supply of the reset signal to the supply of the readout signal. A potential VLS of a light shielding film (LS) provided on a back side of the photodiode (D1a) is caused to be a high level potential during a period that at least partially overlaps a period while the reset signal is supplied.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Sugita, Kohei Tanaka, Christopher Brown
  • Publication number: 20150064007
    Abstract: A wind power generation system according to the invention includes: blades configured to receive wind to rotate; a nacelle supporting a load from the blades; a tower supporting the nacelle; a hub supporting the blades and configured to be rotated with the blades; a rotary main shaft configured to be rotated with the rotation of the hub; a gearbox connected to the rotary main shaft and configured to increase a speed of the rotation; and a generator configured to be driven at the rotation speed increased by the gearbox. The rotary main shaft is connected directly to the hub.
    Type: Application
    Filed: July 31, 2014
    Publication date: March 5, 2015
    Inventors: Kohei TANAKA, Ikuo TOBINAGA, Mitsuru SAEKI
  • Publication number: 20140250395
    Abstract: An information display device that displays plural pieces of display information on a screen while laying out these pieces of display information, including: a gaze judger that judges whether or not the user is gazing at the screen; a display area change detector that detects a change of the display area of the display information; a display area determinator that, when a change of the display area is detected when the user is gazing at the screen, determines a display area according to a ratio of the change of the display area; and a display information display that displays the display information according to the display area of the display information. Even when the layout of the display information is changed in a state in which the user is not gazing at the screen, a change from a state in which an original display is produced is displayed when the user is gazing at the screen.
    Type: Application
    Filed: September 28, 2012
    Publication date: September 4, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventor: Kohei Tanaka
  • Publication number: 20140238300
    Abstract: An apparatus provided with a wafer processing chamber that houses a wafer supporting mechanism supporting a wafer and is used to irradiate the wafer supported by the wafer supporting mechanism with an ion beam and a transport mechanism housing chamber that houses a transport mechanism provided underneath the wafer processing chamber and used for moving the wafer supporting mechanism in a substantially horizontal direction, wherein an aperture used for moving the wafer supporting mechanism along with a coupling member coupling the wafer supporting mechanism to the transport mechanism is formed in the direction of movement of the transport mechanism in a partition wall separating the wafer processing chamber from the transport mechanism housing chamber.
    Type: Application
    Filed: October 30, 2013
    Publication date: August 28, 2014
    Applicant: NISSIN ION EQUIPMENT CO., LTD
    Inventors: Shinya HISADA, Kohei TANAKA, Shigehisa TAMURA, Makoto NAKAYA
  • Publication number: 20140238637
    Abstract: A first cooling mechanism is equipped with a heat exchange unit, in which heat exchange between a substrate and a cooling medium takes place, and flexible plastic tubing for channeling the cooling medium to the heat exchange unit; a second cooling mechanism for cooling the substrate by heat transfer; and a cooling mechanism control unit which, at least when the target substrate cooling temperature of the substrate is not higher than the critical cold resistance temperature of the plastic tubing, cools the substrate using the second cooling mechanism while channeling the cooling medium at a temperature higher than the critical cold resistance temperature through the plastic tubing. In addition, comprises temperature sensors are provided that measure the temperature of the substrate and a cooling mechanism control unit which, with controlling the temperature of the cooling medium in the first cooling mechanism, is configured to control the second cooling mechanism.
    Type: Application
    Filed: November 11, 2013
    Publication date: August 28, 2014
    Applicant: NISSIN ION EQUIPMENT CO., LTD.
    Inventor: Kohei TANAKA
  • Patent number: 8803791
    Abstract: Provided is a display device that includes an optical sensor having a high sensitivity in which a potential difference of an accumulation node due to an illuminance difference on a light receiving surface after boosting is set greater than a potential difference of the same at an end of an integration period. The display device includes an optical sensor in a pixel region. The optical sensor includes a diode D1; a reset signal line RST for supplying a reset signal; a readout signal line RWS for supplying a readout signal; an accumulation node having a potential (VINT) that varies with an amount of light received by the diode D1 during a period from supply of the reset signal to supply of the readout signal; an amplifying element C1 for amplifying VINT according to the readout signal; and a sensor switching element M2 for reading out the amplified potential and outputting the same to an output line.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: August 12, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Sugita, Kohei Tanaka, Hiromi Katoh, Christopher Brown
  • Patent number: 8772699
    Abstract: The present invention relates to a display device including a photosensor in a pixel region. The photosensor of the present invention includes a diode (D1) that receives incident light, reset signal wiring (RST) that supplies a reset signal, readout signal wiring (RWS) that supplies a readout signal, a storage node (INT) whose potential changes in accordance with the amount of light received by the photodetection element in a sensing period, the sensing period being from when the reset signal is supplied until when the readout signal is supplied, an amplification element (C1) that amplifies the potential of the storage node in accordance with the readout signal, and a sensor switching element (M2) for reading out the potential amplified by the amplification element to output wiring (OUT) as sensor circuit output.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: July 8, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Christopher Brown, Kohei Tanaka, Hiromi Katoh
  • Patent number: 8759739
    Abstract: Provided are an optical sensor having a wider dynamic range with reduced temperature dependence, and a display apparatus in which these optical sensors are used. An optical sensor includes an accumulation node (INT); a reset signal line (RST); a readout signal line (RWS); a photodiode (D1) (photodetecting element); a photodiode (D2) (reference element) that has a light-shielding layer; a thin-film transistor (M1) (first switching element) that outputs a potential of the accumulation node (INT) in response to the readout signal during a sensing period; and a thin-film transistor (M2) (second switching element) that is provided between the accumulation node (INT) and the photodiode (D2), and that electrically separates the accumulation node (INT) from the photodiode (D2) when the potential of the accumulation node (INT) upon supply of the readout signal is higher than a potential on a side of the photodiode (D2) opposite to the accumulation node (INT).
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: June 24, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohei Tanaka, Christopher Brown