Patents by Inventor Yohei Yamaguchi

Yohei 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: 20150070641
    Abstract: To maintain good operation of a peripheral circuit using an oxide thin film transistor in a liquid crystal display panel to which photo alignment is applied, the liquid crystal display panel includes: a transparent substrate provided with an oxide thin film transistor in the periphery of a pixel portion in which pixel electrodes are arranged, to control the pixel electrodes; and an alignment film to align liquid crystal provided in the pixel portion. The alignment film is subjected to photo alignment treatment by ultraviolet irradiation. Further, an ultraviolet absorbing layer is provided so as to cover the oxide thin film transistor. For example, an alignment film is used for the ultraviolet absorbing layer to absorb the ultraviolet light for the photo aliment treatment of the alignment film, in the peripheral circuit portion for controlling the pixel electrodes, thereby preventing the threshold voltage of the oxide thin film transistor from shifting.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Inventors: Norihiro UEMURA, Hidekazu MIYAKE, Isao SUZUMURA, Yohei YAMAGUCHI, Toshiki KANEKO
  • Publication number: 20150066256
    Abstract: By obtaining an atmospheric pressure learning value by applying filtering to an estimated atmospheric pressure found from an estimated atmospheric pressure map in an atmospheric pressure learning region matched in advance, and by constantly updating this atmospheric pressure learning value, stable and highly reliable atmospheric pressure estimation can be achieved. Also, a pre-set parameter value or the last atmospheric pressure learning value is used as the initial atmospheric pressure value and an unstable intake pressure value at the engine start in a battery-less state is not used. Hence, it becomes possible to provide an estimated atmospheric pressure with which high drivability is achievable by fully exploiting the engine performance as soon as the engine is started.
    Type: Application
    Filed: January 8, 2014
    Publication date: March 5, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hitoshi SAKO, Yohei YAMAGUCHI
  • Publication number: 20140362059
    Abstract: A thin film transistor includes a drain electrode layer and a source electrode layer that are formed above an oxide semiconductor layer via an insulating film. The drain electrode layer and the source electrode layer are electrically connected with the oxide semiconductor layer via through-holes formed in the insulating film. A first through-hole that electrically connects the drain electrode layer with the oxide semiconductor layer and a second through-hole that electrically connects the source electrode layer with the oxide semiconductor layer each include two or more through-holes that are arranged in parallel in a channel width direction of the thin film transistor. A total width of opening widths of the first or second through-holes in the channel width direction is a channel width of the thin film transistor.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 11, 2014
    Inventors: Norihiro UEMURA, Hidekazu MIYAKE, Takeshi NODA, Isao SUZUMURA, Yohei YAMAGUCHI
  • Publication number: 20140307194
    Abstract: In a bottom gate thin film transistor using a first oxide semiconductor layer as a channel layer, the first oxide semiconductor layer and second semiconductor layers include In and O. An (O/In) ratio of the second oxide semiconductor layers is equal to or larger than that of the first oxide semiconductor layer, and a film thickness thereof is thicker than that of the first oxide semiconductor layer.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 16, 2014
    Applicant: Japan Display Inc.
    Inventors: Isao SUZUMURA, Norihiro UEMURA, Takeshi NODA, Hidekazu MIYAKE, Yohei YAMAGUCHI
  • Publication number: 20140293706
    Abstract: There is provided a semiconductor memory device including a bit line configured to write data, and a time measurement unit configured to measure a write time of the bit line.
    Type: Application
    Filed: March 12, 2014
    Publication date: October 2, 2014
    Applicant: Sony Corporation
    Inventor: Yohei Yamaguchi
  • Publication number: 20120303874
    Abstract: There are provided an information processing unit and an information processing method which are capable of reducing a startup time. The information processing unit includes: a volatile memory temporarily holding, as memory data, information which indicates a plurality of programs; a nonvolatile memory; and a page information generation section generating page information which identifies memory data for a plurality of predetermined pages from memory data stored in the volatile memory. The page information includes a memory address for each page in the volatile memory, and a program number of a program including memory data for each page.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 29, 2012
    Applicant: SONY CORPORATION
    Inventor: Yohei Yamaguchi
  • Publication number: 20120291754
    Abstract: By driving a fuel pump suitably to an amount of fuel according to an amount of fuel consumed by an engine and by monitoring an actual motor speed of the fuel pump, F/B control is carried out according to a target motor speed and the actual motor speed of the fuel pump. Meanwhile, by learning and storing a duty value comparable to a deviation between the target and actual motor speeds, duty driving of the fuel pump is corrected to suit an engine condition. It thus becomes possible to provide a fuel pump control apparatus of an engine capable of promoting power saving by suppressing a wasteful energy loss including a current consumption and making an internal circuit of an ECU simpler by enhancing fuel supply accuracy.
    Type: Application
    Filed: October 14, 2011
    Publication date: November 22, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yohei YAMAGUCHI, Yasuhiko ISHIDA
  • Patent number: 8235026
    Abstract: To improve a restart failure during fuel vapor occurrence, in a fuel injection control apparatus for an engine that is not equipped with a battery and starts the engine by a manual operation, the fuel injection control apparatus for an engine includes: an injector that supplies fuel to the engine based on pressure of the fuel supplied by a fuel pump; a power generating section for generating power based on rotation driving of a crank shaft of the engine; a starting device for manually starting the engine; and a control section for starting with power generation voltage by the power generating section and calculating a fuel injection amount based on an operation state of the engine.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: August 7, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Yamaguchi, Yasuhiko Ishida
  • Patent number: 8044126
    Abstract: The present invention relates to a polyarylene sulfide resin composition, which comprises polyarylene sulfide (A) and polyamide (B) as essential components, and further includes an organic phosphorus compound (C), which is selected from the group consisting of an aromatic phosphite compound and an aromatic phosphonate compound, and an inorganic phosphorus compound (D), which is selected from the group consisting from a metal salt of phosphorous acid and a metal salt of hypophosphoric acid as essential components, in addition to the polyarylene sulfide (A) and the polyamide (B); a manufacturing method thereof; and a surface mount electronic component. The polyarylene sulfide resin composition has excellent heat resistance, does not decrease mechanical properties such as bending strength even if heating treatment is performed under the high temperature condition by passing through a reflow furnace, and has excellent flame retardance.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: October 25, 2011
    Assignee: DIC Corporation
    Inventors: Yasuyuki Yoshino, Hirokiyo Nakase, Hiroaki Negishi, Yohei Yamaguchi, Shinya Gibo
  • Publication number: 20110073077
    Abstract: To improve a restart failure during fuel vapor occurrence, in a fuel injection control apparatus for an engine that is not equipped with a battery and starts the engine by a manual operation, the fuel injection control apparatus for an engine includes: an injector that supplies fuel to the engine based on pressure of the fuel supplied by a fuel pump; a power generating section for generating power based on rotation driving of a crank shaft of the engine; a starting device for manually starting the engine; and a control section for starting with power generation voltage by the power generating section and calculating a fuel injection amount based on an operation state of the engine.
    Type: Application
    Filed: January 21, 2010
    Publication date: March 31, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yohei YAMAGUCHI, Yasuhiko ISHIDA
  • Publication number: 20100331463
    Abstract: The present invention relates to a polyarylene sulfide resin composition, which comprises polyarylene sulfide (A) and polyamide (B) as essential components, and further includes an organic phosphorus compound (C), which is selected from the group consisting of an aromatic phosfite compound and an aromatic phosphonaite compound, and an inorganic phosphorus compound (D), which is selected from the group consisting from a metal salt of phosphorous acid and a metal salt of hypophosphoric acid as essential components, in addition to the polyarylene sulfide (A) and the polyamide (B); a manufacturing method thereof; and a surface mount electronic component. The polyarylene sulfide resin composition has excellent heat resistance, does not decrease mechanical properties such as bending strength even if heating treatment is performed under the high temperature condition by passing through a reflow furnace, and has excellent flame retardance.
    Type: Application
    Filed: January 28, 2009
    Publication date: December 30, 2010
    Applicant: DIC CORPORATION
    Inventors: Yasuyuki Yoshino, Hirokiyo Nakase, Hiroaki Negishi, Yohei Yamaguchi, Shinya Gibo