Patents by Inventor Kenichi Aoyagi

Kenichi Aoyagi 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: 20230362514
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state imaging device, an electronic apparatus, and a comparator control method that can reduce power consumption while increasing the determination speed of the comparator. The comparator includes a comparison unit, a positive feedback circuit, and a current limiting unit. The comparison unit compares the voltage of an input signal and the voltage of a reference signal, and outputs a comparison result signal. The positive feedback circuit increases the transition speed at the time when the comparison result signal is inverted. The current limiting unit limits the current flowing in the comparison unit after the inversion of the comparison result signal. The present disclosure can be applied to comparators, for example.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 9, 2023
    Applicant: SONY GROUP CORPORATION
    Inventors: Masaki SAKAKIBARA, Kenichi AOYAGI, Seiji YAMADA
  • Patent number: 11758305
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state imaging device, an electronic apparatus, and a comparator control method that can reduce power consumption while increasing the determination speed of the comparator. The comparator includes a comparison unit, a positive feedback circuit, and a current limiting unit. The comparison unit compares the voltage of an input signal and the voltage of a reference signal, and outputs a comparison result signal. The positive feedback circuit increases the transition speed at the time when the comparison result signal is inverted. The current limiting unit limits the current flowing in the comparison unit after the inversion of the comparison result signal. The present disclosure can be applied to comparators, for example.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: September 12, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Masaki Sakakibara, Kenichi Aoyagi, Seiji Yamada
  • Patent number: 11753302
    Abstract: Provided a method of producing a ?-sialon fluorescent material having excellent emission intensity. The method includes providing a first composition containing aluminum, an oxygen atom, and a europium-containing silicon nitride, heat treating the first composition, contacting the heat-treated composition and a basic substance to obtain a second composition, and contacting the second composition resulting from contacting the heat-treated composition with the basic substance and an acidic liquid medium containing an acidic substance.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: September 12, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Kenichi Aoyagi, Takashi Kaide, Yuya Takahashi, Shoji Hosokawa
  • Publication number: 20230284513
    Abstract: Provided are a display device capable of curbing light leakage between adjacent pixels, a method of manufacturing the display device, and an electronic apparatus using the display device. The display device includes a plurality of light-emitting elements in which a lower electrode, an organic layer, and an upper electrode are laminated in this order on a substrate, an upper surface protective layer laminated on an upper surface side of the light-emitting elements and covering the upper electrodes, and an element isolation wall disposed between adjacent light-emitting elements and covering side edges surfaces of the light-emitting elements, and the element isolation wall extends from the light-emitting elements toward the upper surface protective film in a thickness direction of the light-emitting elements.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 7, 2023
    Inventors: Daisuke Hamashita, Kenichi Aoyagi, Kenta Hasegawa, Atsushi Yamamoto, Takashi Sakairi
  • Publication number: 20230170353
    Abstract: There is provided a display apparatus including: a first semiconductor substrate (100) provided with a drive circuit unit (40) including a pixel transistor group including a plurality of pixel transistors (400) that drives a light emitting unit (20); and a second semiconductor substrate (200) provided with the light emitting unit and a peripheral circuit unit (30) including a plurality of peripheral circuit transistors (300) that supplies a signal voltage to the drive circuit unit, the second semiconductor substrate being stacked on the first semiconductor substrate and bonded to the first semiconductor substrate, wherein a film thickness of a gate oxide film (404) of each of the plurality of pixel transistors is larger than a film thickness of a gate oxide film (304) of each of the plurality of peripheral circuit transistors.
    Type: Application
    Filed: June 9, 2021
    Publication date: June 1, 2023
    Inventor: Kenichi Aoyagi
  • Publication number: 20230045233
    Abstract: Provided a method of producing a ?-sialon fluorescent material having excellent emission intensity. The method includes providing a first composition containing aluminum, an oxygen atom, and a europium-containing silicon nitride, heat treating the first composition, contacting the heat-treated composition and a basic substance to obtain a second composition, and contacting the second composition resulting from contacting the heat-treated composition with the basic substance and an acidic liquid medium containing an acidic substance.
    Type: Application
    Filed: October 3, 2022
    Publication date: February 9, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Kenichi AOYAGI, Takashi KAIDE, Yuya TAKAHASHI, Shoji HOSOKAWA
  • Patent number: 11569123
    Abstract: Disclosed herein is a semiconductor device, including: a first substrate including a first electrode, and a first insulating film configured from a diffusion preventing material for the first electrode and covering a periphery of the first electrode, the first electrode and the first insulating film cooperating with each other to configure a bonding face; and a second substrate bonded to and provided on the first substrate and including a second electrode joined to the first electrode, and a second insulating film configured from a diffusion preventing material for the second electrode and covering a periphery of the second electrode, the second electrode and the second insulating film cooperating with each other to configure a bonding face to the first substrate.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: January 31, 2023
    Assignee: SONY CORPORATION
    Inventors: Yoshihisa Kagawa, Kenichi Aoyagi, Yoshiya Hagimoto, Nobutoshi Fujii
  • Patent number: 11512250
    Abstract: Provided is a method of producing a ?-sialon fluorescent material having a high light emission intensity and an excellent light emission luminance. The method includes preparing a calcined product having a composition of ?-sialon containing an activating element; grinding the calcined product to obtain a ground product; and heat-treating the ground product to obtain a heat-treated product. A specific surface area of the ground product is 0.2 m2/g or more.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: November 29, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Kenichi Aoyagi, Takashi Kaide, Motoharu Morikawa, Shoji Hosokawa
  • Patent number: 11512248
    Abstract: Provided a method of producing a ?-sialon fluorescent material having excellent emission intensity. The method includes providing a first composition containing aluminum, an oxygen atom, and a europium-containing silicon nitride, heat treating the first composition, contacting the heat-treated composition and a basic substance to obtain a second composition, and contacting the second composition resulting from contacting the heat-treated composition with the basic substance and an acidic liquid medium containing an acidic substance.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: November 29, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Kenichi Aoyagi, Takashi Kaide, Yuya Takahashi, Shoji Hosokawa
  • Publication number: 20220329748
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state imaging device, an electronic apparatus, and a comparator control method that can reduce power consumption while increasing the determination speed of the comparator. The comparator includes a comparison unit, a positive feedback circuit, and a current limiting unit. The comparison unit compares the voltage of an input signal and the voltage of a reference signal, and outputs a comparison result signal. The positive feedback circuit increases the transition speed at the time when the comparison result signal is inverted. The current limiting unit limits the current flowing in the comparison unit after the inversion of the comparison result signal. The present disclosure can be applied to comparators, for example.
    Type: Application
    Filed: June 13, 2022
    Publication date: October 13, 2022
    Applicant: SONY CORPORATION
    Inventors: Masaki SAKAKIBARA, Kenichi AOYAGI, Seiji YAMADA
  • Patent number: 11427758
    Abstract: A method for producing ?-sialon fluorescent material having excellent emission intensity is provided. The method for producing ?-sialon fluorescent material includes providing a composition comprising silicon nitride that contains aluminium, an oxygen atom, and europium, heat treating the composition, contacting the heat-treated composition with a basic substance, and washing the composition, which has been contacted with the basic substance, with an acidic liquid medium.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: August 30, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Motoharu Morikawa, Shoji Hosokawa, Takashi Kaide, Kenichi Aoyagi
  • Patent number: 11394912
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state imaging device, an electronic apparatus, and a comparator control method that can reduce power consumption while increasing the determination speed of the comparator. The comparator includes a comparison unit, a positive feedback circuit, and a current limiting unit. The comparison unit compares the voltage of an input signal and the voltage of a reference signal, and outputs a comparison result signal. The positive feedback circuit increases the transition speed at the time when the comparison result signal is inverted. The current limiting unit limits the current flowing in the comparison unit after the inversion of the comparison result signal. The present disclosure can be applied to comparators, for example.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: July 19, 2022
    Assignee: SONY CORPORATION
    Inventors: Masaki Sakakibara, Kenichi Aoyagi, Seiji Yamada
  • Publication number: 20220013567
    Abstract: The present disclosure includes a first substrate including a first wiring layer having a first connection electrode projecting by a predetermined quantity from a first interlayer insulation film and a second wiring layer having a second connection electrode projecting by a predetermined quantity from a second interlayer insulation film. On a bonded surface between the first and second substrates, the first and second connection electrodes are joined with each other, and at the same time, at least a part of the first interlayer insulation film and a part of the second interlayer insulation film which face to each other in a lamination direction are joined with each other.
    Type: Application
    Filed: April 26, 2021
    Publication date: January 13, 2022
    Inventors: NOBUTOSHI FUJII, KENICHI AOYAGI
  • Publication number: 20210366958
    Abstract: A semiconductor device includes a first substrate having an attaching surface on which first electrodes and a first insulating film are exposed, an insulating thin film that covers the attaching surface of the first substrate, and a second substrate which has an attaching surface on which second electrodes and a second insulating film are exposed and is attached to the first substrate in a state in which the attaching surface of the second substrate and the attaching surface of the first substrate are attached together sandwiching the insulating thin film therebetween, and the first electrodes and the second electrodes deform and break a part of the insulating thin film so as to be directly electrically connected to each other.
    Type: Application
    Filed: August 3, 2021
    Publication date: November 25, 2021
    Applicant: Sony Group Corporation
    Inventors: Nobutoshi Fujii, Yoshiya Hagimoto, Kenichi Aoyagi, Yoshihisa Kagawa
  • Patent number: 11107855
    Abstract: A semiconductor device includes a first substrate having an attaching surface on which first electrodes and a first insulating film are exposed, an insulating thin film that covers the attaching surface of the first substrate, and a second substrate which has an attaching surface on which second electrodes and a second insulating film are exposed and is attached to the first substrate in a state in which the attaching surface of the second substrate and the attaching surface of the first substrate are attached together sandwiching the insulating thin film therebetween, and the first electrodes and the second electrodes deform and break a part of the insulating thin film so as to be directly electrically connected to each other.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: August 31, 2021
    Assignee: SONY CORPORATION
    Inventors: Nobutoshi Fujii, Yoshiya Hagimoto, Kenichi Aoyagi, Yoshihisa Kagawa
  • Publication number: 20210265200
    Abstract: Disclosed herein is a semiconductor device, including: a first substrate including a first electrode, and a first insulating film configured from a diffusion preventing material for the first electrode and covering a periphery of the first electrode, the first electrode and the first insulating film cooperating with each other to configure a bonding face; and a second substrate bonded to and provided on the first substrate and including a second electrode joined to the first electrode, and a second insulating film configured from a diffusion preventing material for the second electrode and covering a periphery of the second electrode, the second electrode and the second insulating film cooperating with each other to configure a bonding face to the first substrate.
    Type: Application
    Filed: March 8, 2021
    Publication date: August 26, 2021
    Applicant: Sony Corporation
    Inventors: Yoshihisa Kagawa, Kenichi Aoyagi, Yoshiya Hagimoto, Nobutoshi Fujii
  • Publication number: 20210246417
    Abstract: According to the present invention, a powder containing a carotenoid for feed having improved color enhancing ability, and a method for producing the same are provided. A method for producing a dried bacterial cell powder containing a carotenoid, comprising a step of drying via conductive heat transfer and a pulverization step and a dried bacterial cell powder produced by the method are provided.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Hidetada Nagai, Yuki Kawashima, Futoshi Sunada, Toshiyuki Takahashi, Kenichi Aoyagi
  • Patent number: 10998300
    Abstract: A display unit is provided, on a substrate, with a first wiring layer and a device section. The device section has a plurality of pixels. The device section includes, in each of the pixels, a light-emitting device section and a drive device. The light-emitting device section includes a light-emitting device and a light-emitting surface. The drive device drives the light-emitting device section and is electrically coupled to the light-emitting device section through the first wiring layer. An end of the light-emitting surface of the light-emitting device section is disposed at a position as high as an upper end of the drive device, or at a position higher than the upper end.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: May 4, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Toshiaki Hasegawa, Kenichi Aoyagi, Nobutatsu Araki, Tsuyoshi Jyouno, Katsunori Ootsubo, Yoshiya Hagimoto, Yasuhiro Mizuma
  • Patent number: 10985102
    Abstract: Disclosed herein is a semiconductor device, including: a first substrate including a first electrode, and a first insulating film configured from a diffusion preventing material for the first electrode and covering a periphery of the first electrode, the first electrode and the first insulating film cooperating with each other to configure a bonding face; and a second substrate bonded to and provided on the first substrate and including a second electrode joined to the first electrode, and a second insulating film configured from a diffusion preventing material for the second electrode and covering a periphery of the second electrode, the second electrode and the second insulating film cooperating with each other to configure a bonding face to the first substrate.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: April 20, 2021
    Assignee: Sony Corporation
    Inventors: Yoshihisa Kagawa, Kenichi Aoyagi, Yoshiya Hagimoto, Nobutoshi Fujii
  • Publication number: 20210111235
    Abstract: Provided is a display device in which more than one pixel is arranged in a two-dimensional matrix on a circuit board, the pixel including a light emission unit including a first electrode, an organic layer, and a second electrode that are stacked, in which the first electrode is disposed for each light emission unit, and a partition is formed between the first electrode and an adjacent first electrode, the organic layer and the second electrode are stacked on an entire surface including the first electrode and the partition, the first electrode is formed on an interlayer insulation film, and a reflection film is formed below the first electrode, the reflection film including a light reflecting surface disposed to be flush with a boundary plane on which different insulation materials are in contact with each other in the interlayer insulation film.
    Type: Application
    Filed: April 23, 2019
    Publication date: April 15, 2021
    Inventors: Tomoyoshi Ichikawa, Kenichi Aoyagi, Takashi Sakairi