Patents by Inventor Shinya Yamaguchi

Shinya Yamaguchi 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: 20080206961
    Abstract: In order to provide a semiconductor device having a field effect transistor with a low power consumption and a high speed by use of the combination of Si and an element such as Ge, C or the like of the same group as Si, a strain is applied by a strain applying semiconductor layer 2 to a channel forming layer I having a channel of the field effect transistor formed therein so that the mobility of carriers in the channel is made larger than the mobility of carriers in that material of the channel forming layer which is unstrained.
    Type: Application
    Filed: January 22, 2008
    Publication date: August 28, 2008
    Inventors: Nobuyuki Sugii, Kiyokazu Nakagawa, Shinya Yamaguchi, Masanobu Miyao
  • Patent number: 7406950
    Abstract: The invention can avoid an energy dissipation and a consumption of an apparatus by minimizing a driving amount of a fuel pump and maintain an improved fuel supply state, in a fuel supply system injecting a liquefied gas fuel by an injector and supplying to an engine.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: August 5, 2008
    Assignee: Nikki Co., Ltd.
    Inventors: Umerujan Sawut, Masashi Iwasaki, Shinya Yamaguchi
  • Publication number: 20080121894
    Abstract: A TFT device having a pixel portion and a driving circuit portion formed on a glass substrate; wherein at least the active layer (active region) of a transistor constituting said driving circuit comprises polycrystalline silicon including crystals that do not have crystal grain boundaries which cross the direction of current flow.
    Type: Application
    Filed: January 29, 2008
    Publication date: May 29, 2008
    Inventors: Mikio HONGO, Sachio Uto, Mineo Nomoto, Toshihiko Nakata, Mutsuko Hatano, Shinya Yamaguchi, Makoto Ohkura
  • Publication number: 20080111134
    Abstract: To provide TFT of improved low-temperature polycrystalline layer that has higher electron mobility and assures less fluctuation in manufacture in view of realizing a liquid-crystal display device having a large display area by utilizing a glass substrate. A TFT having higher electron mobility can be realized within the predetermined range of characteristic fluctuation by utilizing the semiconductor thin-film (called quasi single crystal thin-film) formed of poly-crystal grain joined with the {111} twin-boundary of Diamond structure as the channel region (namely, active region) of TFT.
    Type: Application
    Filed: January 4, 2008
    Publication date: May 15, 2008
    Inventors: Shinya Yamaguchi, Masanobu Miyao, Nobuyuki Sugii, Seang-kee Park, Kiyokazu Nakagawa
  • Patent number: 7326623
    Abstract: Arrangements (e.g., methods) for manufacturing a display device, including irradiating an amorphous semiconductor film formed on a substrate with an excimer laser beam to convert the amorphous semiconductor film into a polycrystalline semiconductor film; and irradiating predetermined areas of the polycrystalline semiconductor film intermittently with a continuous wave laser beam while a position of the substrate with respect to the continuous wave laser beam is scanned, crystal grains larger than those of the polycrystalline semiconductor film other than the predetermined areas are formed in each of the predetermined areas locally in the polycrystalline semiconductor film, wherein first thin film transistors are formed in the predetermined areas while second thin film transistors are formed in the polycrystalline semiconductor film other than the predetermined areas thereof.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: February 5, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Hongo, Sachio Uto, Mineo Nomoto, Toshihiko Nakata, Mutsuko Hatano, Shinya Yamaguchi, Makoto Ohkura
  • Patent number: 7317207
    Abstract: To provide TFT of improved low-temperature polycrystalline layer that has higher electron mobility and assures less fluctuation in manufacture in view of realizing a liquid-crystal display device having a large display area by utilizing a glass substrate. A TFT having higher electron mobility can be realized within the predetermined range of characteristic fluctuation by utilizing the semiconductor thin-film (called quasi single crystal thin-film) formed of poly-crystal grain joined with the {111} twin-boundary of Diamond structure as the channel region (namely, active region) of TFT.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: January 8, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Shinya Yamaguchi, Masanobu Miyao, Nobuyuki Sugii, Seang-kee Park, Kiyokazu Nakagawa
  • Patent number: 7306990
    Abstract: An information memory device capable of reading and writing of information by mechanical operation of a floating gate layer, in which a gate insulation film has a cavity (6), and a floating gate layer (5) having two stable deflection states in the cavity (6), the state stabilized by deflecting toward the channel side of transistor, and the state stabilized by deflecting toward the gate (7) side, writing and reading of information can be made by changing the stable deflection state of the floating gate layer (5) by Coulomb interactive force between the electrons (or positive holes 8) accumulated in the floating gate layer (5) and external electric field, and by reading the channel current change based on the state of the floating gate layer (5).
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: December 11, 2007
    Assignee: Japan Science & Technology Agency
    Inventors: Shinya Yamaguchi, Masahiko Ando, Toshikazu Shimada, Natsuki Yokoyama, Shunri Oda, Nobuyoshi Koshida
  • Publication number: 20070262319
    Abstract: A large number of pixels PXL are arranged in a matrix fashion in a display region DSP on an insulating substrate. Disposed around the display region DSP are a drain-side pixel-driving circuit including a drain shift register DSR, a digital-to-analog converter circuit DAC, a drain level shifter DLS, a buffer BF and sampling switches SSW; and a gate-side pixel-driving circuit including a gate shift register GSR and a gate level shifter GLS, and various kinds of circuits. Current mobility of thin film transistors constituting a circuit region SX requiring high-speed operation of these pixel-driving circuits is improved by optimizing a combination of plural layouts, arrangements and configurations for the respective circuits to meet the specifications special for the respective circuits.
    Type: Application
    Filed: July 23, 2007
    Publication date: November 15, 2007
    Inventors: Mitsuharu Tai, Mutsuko Hatano, Shinya Yamaguchi, Takeo Shiba, Hideo Sato
  • Publication number: 20070251501
    Abstract: In a fuel supply apparatus of a returnless type engine provided with fuel supply pipe lines (5, 6) extended from a fuel tank (2) and having an injector (8) in a leading end side, a fuel pump (3) having an electric motor (31) arranged in the fuel supply pipe line, and an electronic control unit (10) in which a fuel supply control program for controlling so as drive the electric motor (31) and the injector (8) is installed, a pressure sensor (11) detecting a fuel pressure so as to output to the electronic control unit (10) is arranged at a predetermined position of the fuel supply pipe line (6) in a downstream side of the fuel pump (3), and the electronic control unit (10) continuously calculates a minimum driving amount of the electric motor (31) necessary for maintaining a target fuel injection pressure on the basis of the fuel pressure value continuously detected by the electronic control unit (10) so as to command, thereby feedback controlling the operation of the fuel pump (3) and maintaining a fuel inject
    Type: Application
    Filed: April 20, 2007
    Publication date: November 1, 2007
    Applicant: NIKKI CO., LTD.
    Inventors: Umerujan Sawut, Masashi Iwasaki, Shinya Yamaguchi
  • Publication number: 20070246020
    Abstract: The invention can avoid an energy dissipation and a consumption of an apparatus by minimizing a driving amount of a fuel pump and maintain an improved fuel supply state, in a fuel supply system injecting a liquefied gas fuel by an injector and supplying to an engine.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 25, 2007
    Applicant: NIKKI CO., LTD.
    Inventors: Umerujan Sawut, Masashi Iwasaki, Shinya Yamaguchi
  • Publication number: 20070246709
    Abstract: A thin film semiconductor device is provided which includes an insulating substrate, a Si thin film formed over the insulating substrate, and a transistor with the Si thin film as a channel thereof. The Si thin film includes a polycrystal where a plurality of narrow, rectangular crystal grains are arranged. A surface of the polycrystal is flat at grain boundaries thereof. Also, an average film thickness of the boundaries of crystals of the Si thin film ranges from 90 to 100% of an intra-grain average film thickness.
    Type: Application
    Filed: June 26, 2007
    Publication date: October 25, 2007
    Inventors: Shinya YAMAGUCHI, Mutsuko Hatano, Mitsuharu Tai, Sedng-Kee Park, Takeo Shiba
  • Patent number: 7262821
    Abstract: A large number of pixels PXL are arranged in a matrix fashion in a display region DSP on an insulating substrate. Disposed around the display region DSP are a drain-side pixel-driving circuit including a drain shift register DSR, a digital-to-analog converter circuit DAC, a drain level shifter DLS, a buffer BF and sampling switches SSW; and a gate-side pixel-driving circuit including a gate shift register GSR and a gate level shifter GLS, and various kinds of circuits. Current mobility of thin film transistors constituting a circuit region SX requiring high-speed operation of these pixel-driving circuits is improved by optimizing a combination of plural layouts, arrangements and configurations for the respective circuits to meet the specifications special for the respective circuits.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: August 28, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Mitsuharu Tai, Mutsuko Hatano, Shinya Yamaguchi, Takeo Shiba, Hideo Sato
  • Patent number: 7256423
    Abstract: A thin film semiconductor device which includes an insulating substrate, a semiconductor polycrystal thin film formed over the substrate and a transistor with the thin film as a channel. The polycrystal includes a plurality of crystal grains, with grain boundaries between the crystal grains being recessed. The grain boundaries with the recessed surfaces are the most predominant of all grain boundaries within the channel. With this structure, the polycrystal can be a low temperature polycrystal that can be formed at a temperature of 150° C. or less, thereby achieving a low-cost device with high carrier mobility.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: August 14, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Shinya Yamaguchi, Mutsuko Hatano, Mitsuharu Tai, Sedng-Kee Park, Takeo Shiba
  • Publication number: 20070134893
    Abstract: There is provided a method for fabricating an image display device having an active matrix substrate including high-performance transistor circuits operating with high mobility as drive circuits for driving pixel portions which are arranged as a matrix. The portion of a polysilicon film formed in a drive circuit region DAR1 provided on the periphery of the pixel region PAR of the active matrix substrate SUB1 composing the image display device is irradiated and scanned with a pulse modulated laser beam or a pseudo CW laser beam to be reformed into a quasi-strip-like-crystal silicon film having a crystal boundary continuous in the scanning direction so that discrete reformed regions each composed of the quasi-strip-like-crystal silicon film are formed.
    Type: Application
    Filed: February 6, 2007
    Publication date: June 14, 2007
    Inventors: Mutsuko Hatano, Shinya Yamaguchi, Takeo Shiba, Mitsuharu Tai, Hajime Akimoto
  • Publication number: 20070118846
    Abstract: There are provided a disc tray, a traverse unit, and a main chassis unit. The main chassis unit has a main chassis, which has, as observed when the traverse unit is in a stand-by position, a latch portion that engages with a projection portion of a sub rack and a stopper member that restricts the movement of the cam slider. The stopper member has a rotary shaft in the shape of a circular column, a lever portion which the projection portion makes contact, and a lock portion that makes contact with the cam slider and thereby restricts the sliding movement of the cam slider.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 24, 2007
    Inventors: Kazumasa Nasu, Katsunori Onishi, Takayuki Murakami, Katsuo Ichinohe, Yasuhiro Nishina, Shinya Yamaguchi, Nobuyuki Okazaki, Ryuuji Hayashi
  • Publication number: 20070105263
    Abstract: A process for producing an image display device using a thin film semiconductor device is provided which includes forming a polycrystalline semiconductor thin film on a substrate. A substantially belt-shaped crystal is formed which is crystallized so as to grow crystal grains in a direction substantially parallel to a scanning direction of a CW laser beam by scanning the CW laser beam along the substrate, thereby irradiating the CW laser beam on portions of the polycrystalline semiconductor thin film formed onto the substrate.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 10, 2007
    Inventors: Mutsuko Hatano, Shinya Yamaguchi, Yoshinobu Kimura, Seong-Kee Park
  • Patent number: 7192852
    Abstract: There is provided a method for fabricating an image display device having an active matrix substrate including high-performance transistor circuits operating with high mobility as drive circuits for driving pixel portions which are arranged as a matrix. The portion of a polysilicon film formed in a drive circuit region DAR1 provided on the periphery of the pixel region PAR of the active matrix substrate SUB1 composing the image display device is irradiated and scanned with a pulse modulated laser beam or a pseudo CW laser beam to be reformed into a quasi-strip-like-crystal silicon film having a crystal boundary continuous in the scanning direction so that discrete reformed regions each composed of the quasi-strip-like-crystal silicon film are formed.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: March 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Mutsuko Hatano, Shinya Yamaguchi, Takeo Shiba, Mitsuharu Tai, Hajime Akimoto
  • Patent number: 7193238
    Abstract: An image display device which includes a display pixel block and circuit blocks peripheral thereto. Each block has a circuit made of high-performance thin film transistors. The display pixel block and the peripheral circuit blocks including the four corners of the display device are formed on an image display device substrate of circuit-built-in type thin film transistors having a small circuit occupation surface area. A circuit including thin film transistors of a polycrystalline silicon film anisotropically crystal-grown and having crystal grains aligned in its longitudinal direction with a current direction is provided in the whole or partial surface of the display pixel block and circuit blocks. The longitudinal direction is aligned with a horizontal or vertical direction within the block, and blocks aligned in the horizontal and vertical directions can be arranged as mixed when viewed from an identical straight line.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: March 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Takeo Shiba, Mutsuko Hatano, Shinya Yamaguchi, Seong-kee Park
  • Publication number: 20070041410
    Abstract: Apparatus for fabricating a display device includes a stage capable of mounting an insulating substrate of the display device and moving the insulating substrate, linear scales which detect a position or moving distance of the substrate, a laser oscillator which generates continuous-waves laser light, a modulator which turns ON/OFF the continuous-wave laser light, a beam forming optic which shapes the continuous-wave laser light passing through the modulator into a linear or rectangular form, an objective lens which projects the at least one of the laser light on the insulating substrate so as to irradiate the insulating substrate with the laser light.
    Type: Application
    Filed: October 27, 2006
    Publication date: February 22, 2007
    Inventors: Mikio Hongo, Sachio Uto, Mineo Nomoto, Toshihiko Nakata, Mutsuko Hatano, Shinya Yamaguchi, Makoto Ohkura
  • Patent number: 7172932
    Abstract: A process for producing an image display device using a thin film semiconductor device is provided which includes forming a polycrystalline semiconductor thin film on a substrate. A substantially belt-shaped crystal is formed which is crystallized so as to grow crystal grains in a direction substantially parallel to a scanning direction of a CW laser beam by scanning the CW laser beam along the substrate, thereby irradiating the CW laser beam on portions of the polycrystalline semiconductor thin film formed onto the substrate.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: February 6, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Mutsuko Hatano, Shinya Yamaguchi, Yoshinobu Kimura, Seong-Kee Park