Patents by Inventor Takuma Fujii

Takuma Fujii 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: 20250230777
    Abstract: A method for controlling an engine includes selecting a control point consisting of a combination of an injection timing of injecting fuel and an ignition timing of igniting an air-fuel mixture, corresponding to a selection on a parameter map Mlim having the injection timing as a first axis and the ignition timing as a second axis, defines a parameter region Rlim surrounded by a first limit line Li1 indicating an advance limit at which preignition is restrained, a second limit line Li2 indicating an advance limit at which smoke is restrained, a third limit line Li3 indicating an advance limit at which knocking is restrained, and a fourth limit line Li4 indicating a retard limit at which combustion stability is ensured on the parameter map Mlim, and further includes a step of selecting the control point so the ignition timing is brought to maximum advance within the parameter region Rlim.
    Type: Application
    Filed: January 7, 2025
    Publication date: July 17, 2025
    Applicant: Mazda Motor Corporation
    Inventors: Takuma FUJII, Mitsuhiro MUTO, Keisuke OKIHAMA, Ryohei MATSUO
  • Patent number: 12315444
    Abstract: Provided is a pixel circuit capable of preventing slight light emission of an organic EL element due to leakage current from a driving transistor. Provided is a pixel circuit including: a light-emitting element that emits light at luminance corresponding to an amount of current; a first capacitance, which is a metal insulator metal (MIM) capacitance; and a second capacitance, which is a metal insulator semiconductor (MIS) capacitance disposed in parallel to the light-emitting element.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: May 27, 2025
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takayuki Sakaguchi, Takuma Fujii
  • Patent number: 12266314
    Abstract: [Object] It is possible to further improve reliability. [Solution] There is provided a display device including: a pixel unit which is configured with a plurality of pixel circuits arranged in a matrix, each of the pixel circuits including a light emitting element and a driving circuit for driving the light emitting element; scanning lines which are interconnections connected to the respective pixel circuits and are provided to extend in a first direction and correspond to respective rows of a plurality of the pixel circuits; and signal lines which are interconnections connected to the respective pixel circuits and are provided to extend in a second direction orthogonal to the first direction and correspond to respective columns of a plurality of the pixel circuits. One of the scanning lines and the signal lines, provided for the one pixel circuit, which is larger in number is positioned in a lower-level interconnection layer.
    Type: Grant
    Filed: April 11, 2024
    Date of Patent: April 1, 2025
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takuma Fujii, Naobumi Toyomura
  • Publication number: 20250040364
    Abstract: Provided is a display device including: a pixel unit in which a plurality of pixel circuits (PIX_A, PIX_B, PIX_C) each of which includes a light emitting element and a driving circuit configured to drive the light emitting element are arranged in a matrix form. In a diffusion layer in which transistors included in the driving circuits of the pixel circuits (PIX_A, PIX_B, PIX_C) are formed, an electricity supply region (223) that is an active area for supplying an electric potential to a well is provided between mutually adjacent ones of the pixel circuits (PIX_A, PIX_B, PIX_C).
    Type: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Inventors: Naobumi Toyomura, Takuma Fujii
  • Patent number: 12198635
    Abstract: A display device of the present disclosure includes: a pixel array unit in which pixels respectively including light emitting units are arranged; a writing scanning unit that writes a video signal while scanning each of the pixels of the pixel array unit in units of pixel rows; and a light emission driving unit that divides a display screen into a plurality of units in a scanning direction in units of the pixel rows, and performs light emission driving for each of the divided units.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: January 14, 2025
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Takuma Fujii
  • Patent number: 12171112
    Abstract: A display device according to an embodiment of the present technology includes a transparent substrate, an element substrate, a color filter layer, a metal electrode layer, and a transparent adhesive layer. The element substrate includes an opposing surface facing the transparent substrate, and an organic EL element that emits light from a display region of the opposing surface. The color filter layer is disposed on the opposing surface to avoid a bonding region provided in a peripheral region surrounding the display region of the opposing surface. The metal electrode layer is disposed on the element substrate to avoid at least a part of an overlapping region that overlaps with the bonding region when viewed from the transparent substrate. The transparent adhesive layer bonds the transparent substrate and the element substrate to each other via the bonding region.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: December 17, 2024
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takuma Fujii, Yosuke Motoyama
  • Patent number: 12144209
    Abstract: Provided is a display device including: a pixel unit in which a plurality of pixel circuits (PIX_A, PIX_B, PIX_C) each of which includes a light emitting element and a driving circuit configured to drive the light emitting element are arranged in a matrix form. In a diffusion layer in which transistors included in the driving circuits of the pixel circuits (PIX_A, PIX_B, PIX_C) are formed, an electricity supply region (223) that is an active area for supplying an electric potential to a well is provided between mutually adjacent ones of the pixel circuits (PIX_A, PIX_B, PIX_C).
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: November 12, 2024
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Naobumi Toyomura, Takuma Fujii
  • Publication number: 20240347009
    Abstract: It is possible to further improve reliability. There is provided a display device including: a pixel unit which is configured with a plurality of pixel circuits arranged in a matrix, each of the pixel circuits including a light emitting element and a driving circuit for driving the light emitting element; scanning lines which are interconnections connected to the respective pixel circuits and are provided to extend in a first direction and correspond to respective rows of a plurality of the pixel circuits; and signal lines which are interconnections connected to the respective pixel circuits and are provided to extend in a second direction orthogonal to the first direction and correspond to respective columns of a plurality of the pixel circuits. One of the scanning lines and the signal lines, provided for the one pixel circuit, which is larger in number is positioned in a lower-level interconnection layer.
    Type: Application
    Filed: April 11, 2024
    Publication date: October 17, 2024
    Inventors: Takuma Fujii, Naobumi Toyomura
  • Patent number: 11980691
    Abstract: Enteric softgel capsules comprise a fill material and an enteric shell composition, characterized in that the enteric nature of the capsules may be achieved without an enteric coating or added conventional enteric polymers.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: May 14, 2024
    Assignee: R.P. Scherer Technologies, LLC
    Inventors: Toshikazu Okayama, Miyako Takahashi, Takuma Fujii
  • Patent number: 11978405
    Abstract: [Object] It is possible to further improve reliability. [Solution] There is provided a display device including: a pixel unit which is configured with a plurality of pixel circuits arranged in a matrix, each of the pixel circuits including a light emitting element and a driving circuit for driving the light emitting element; scanning lines which are interconnections connected to the respective pixel circuits and are provided to extend in a first direction and correspond to respective rows of a plurality of the pixel circuits; and signal lines which are interconnections connected to the respective pixel circuits and are provided to extend in a second direction orthogonal to the first direction and correspond to respective columns of a plurality of the pixel circuits. One of the scanning lines and the signal lines, provided for the one pixel circuit, which is larger in number is positioned in a lower-level interconnection layer.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: May 7, 2024
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takuma Fujii, Naobumi Toyomura
  • Publication number: 20240029652
    Abstract: Provided is a pixel circuit capable of preventing slight light emission of an organic EL element due to leakage current from a driving transistor. Provided is a pixel circuit including: a light-emitting element that emits light at luminance corresponding to an amount of current; a first capacitance, which is a metal insulator metal (MIM) capacitance; and a second capacitance, which is a metal insulator semiconductor (MIS) capacitance disposed in parallel to the light-emitting element.
    Type: Application
    Filed: June 15, 2023
    Publication date: January 25, 2024
    Inventors: Takayuki Sakaguchi, Takuma Fujii
  • Publication number: 20230410753
    Abstract: [Object] It is possible to further improve reliability. [Solution] There is provided a display device including: a pixel unit which is configured with a plurality of pixel circuits arranged in a matrix, each of the pixel circuits including a light emitting element and a driving circuit for driving the light emitting element; scanning lines which are interconnections connected to the respective pixel circuits and are provided to extend in a first direction and correspond to respective rows of a plurality of the pixel circuits; and signal lines which are interconnections connected to the respective pixel circuits and are provided to extend in a second direction orthogonal to the first direction and correspond to respective columns of a plurality of the pixel circuits. One of the scanning lines and the signal lines, provided for the one pixel circuit, which is larger in number is positioned in a lower-level interconnection layer.
    Type: Application
    Filed: May 24, 2023
    Publication date: December 21, 2023
    Inventors: Takuma Fujii, Naobumi Toyomura
  • Patent number: 11802518
    Abstract: An engine system is provided, which includes a vehicle-mounted engine having an injector, a spark plug, an intake valve operating mechanism, and an exhaust valve operating mechanism, an accelerator opening sensor, and a controller. The engine is configured to execute flame propagation combustion and compressed self-ignition combustion. The controller performs a combustion control so that a target torque set based on an accelerator opening is realized in a specific cycle in the future from a present time by a given delay time. The controller sets beforehand the combustion mode based on a target load, estimates an in-cylinder property when the intake valve is closed in the present cycle, sets a target in-cylinder property so that the set combustion mode is realized in the specific cycle, and sets a target operating amount of each of the intake and exhaust valve operating mechanisms based on the set target in-cylinder property.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: October 31, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Takuma Fujii, Takayuki Hikita, Saori Mizuno, Mitsuhiro Muto
  • Publication number: 20230317016
    Abstract: A display device of the present disclosure includes: a pixel array unit in which pixels respectively including light emitting units are arranged; a writing scanning unit that writes a video signal while scanning each the pixels of the pixel array unit in units of pixel rows; and a light emission driving unit that divides a display screen into a plurality of units in a scanning direction in units of the pixel rows, and performs light emission driving for each of the divided units.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 5, 2023
    Inventor: Takuma Fujii
  • Patent number: 11721281
    Abstract: Provided is a pixel circuit capable of preventing slight light emission of an organic EL element due to leakage current from a driving transistor. Provided is a pixel circuit including: a light-emitting element that emits light at luminance corresponding to an amount of current; a first capacitance, which is a metal insulator metal (MIM) capacitance; and a second capacitance, which is a metal insulator semiconductor (MIS) capacitance disposed in parallel to the light-emitting element.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 8, 2023
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takayuki Sakaguchi, Takuma Fujii
  • Patent number: 11705072
    Abstract: [Object] It is possible to further improve reliability. [Solution] There is provided a display device including: a pixel unit which is configured with a plurality of pixel circuits arranged in a matrix, each of the pixel circuits including a light emitting element and a driving circuit for driving the light emitting element; scanning lines which are interconnections connected to the respective pixel circuits and are provided to extend in a first direction and correspond to respective rows of a plurality of the pixel circuits; and signal lines which are interconnections connected to the respective pixel circuits and are provided to extend in a second direction orthogonal to the first direction and correspond to respective columns of a plurality of the pixel circuits. One of the scanning lines and the signal lines, provided for the one pixel circuit, which is larger in number is positioned in a lower-level interconnection layer.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: July 18, 2023
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takuma Fujii, Naobumi Toyomura
  • Publication number: 20230180542
    Abstract: Provided is a display device including: a pixel unit in which a plurality of pixel circuits (PIX_A, PIX_B, PIX_C) each of which includes a light emitting element and a driving circuit configured to drive the light emitting element are arranged in a matrix form. In a diffusion layer in which transistors included in the driving circuits of the pixel circuits (PIX_A, PIX_B, PIX_C) are formed, an electricity supply region (223) that is an active area for supplying an electric potential to a well is provided between mutually adjacent ones of the pixel circuits (PIX_A, PIX_B, PIX_C).
    Type: Application
    Filed: October 17, 2022
    Publication date: June 8, 2023
    Inventors: Naobumi Toyomura, Takuma Fujii
  • Patent number: 11653519
    Abstract: A display device includes: an organic EL layer formed over a circuit section formed over a substrate, an insulating layer interposed between the circuit section and the organic EL layer; a cathode electrode formed over the organic EL layer in common for all pixels; and a contact electrode that is provided at an outer peripheral portion of an effective pixel region and that electrically connects the cathode electrode and the circuit section. In the display device, the cathode electrode is electrically connected to the contact electrode, on an inner side as compared to an end surface of a film formation area of the organic EL layer.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: May 16, 2023
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Takuma Fujii
  • Patent number: 11639699
    Abstract: An engine system is provided, which includes a vehicle-mounted engine having an injector, a spark plug, and a property adjusting device, an accelerator opening sensor, and a controller. The controller performs a combustion control for controlling the injector, the spark plug, and the property adjusting device so that a target torque set based on a present accelerator opening detected by the accelerator opening sensor is outputted in a specific cycle in the future from a present time by a given delay time. In the combustion control, the controller sets a target load of the engine in the specific cycle based on the present accelerator opening, and sets a combustion transition from the present cycle to the specific cycle by selecting beforehand combustion from the present cycle to the specific cycle, from flame propagation combustion and compressed self-ignition combustion, based on the set target load.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: May 2, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Takuma Fujii, Takayuki Hikita, Saori Mizuno, Mitsuhiro Muto
  • Patent number: 11635040
    Abstract: A method of controlling an engine is provided, which includes setting, by a controller, a target torque of the engine in a specific cycle in the future by a given delay time from the present time based on a present accelerator opening. The method includes selecting beforehand, by the controller, combustion in the specific cycle according to the target torque, from flame propagation combustion and compressed self-ignition combustion. The method includes outputting, by the controller, a control signal to a property adjusting device before the specific cycle so that a property inside the cylinder in the specific cycle becomes a property corresponding to the selected combustion. The method includes estimating, by the controller, the property at a timing when an intake valve is closed in the specific cycle. The method includes outputting, by the controller, a control signal corresponding to the estimated property to a spark plug or an injector.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: April 25, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Takuma Fujii, Takayuki Hikita, Saori Mizuno, Mitsuhiro Muto