Patents by Inventor Shinichi Machida

Shinichi Machida 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: 20240065013
    Abstract: A photoelectric conversion element includes a first electrode, a second electrode facing the first electrode, and a photosensitive layer between the first electrode and the second electrode. At least one selected from the group consisting of the first electrode and the second electrode transmits light. The photosensitive layer contains a quantum dot and a semiconducting carbon nanotube that absorbs the light. The quantum dot has a higher absolute value of electron affinity than the semiconducting carbon nanotube.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: NOZOMU MATSUKAWA, SHINICHI MACHIDA
  • Publication number: 20240049490
    Abstract: A photoelectric conversion element includes a photoelectric conversion layer, a first electrode that collects holes generated in the photoelectric conversion layer, and a second electrode that is positioned opposite to the first electrode with the photoelectric conversion layer being disposed therebetween and that collects electrons generated in the photoelectric conversion layer. The photoelectric conversion layer includes a first quantum dot layer including first quantum dots each having a surface modified with a first ligand and includes a second quantum dot layer including second quantum dots each having a surface modified with a second ligand different from the first ligand. The second quantum dot layer has an ionization potential greater than an ionization potential of the first quantum dot layer. A second value that represents a particle diameter distribution of the second quantum dots is less than a first value that represents a particle diameter distribution of the first quantum dots.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 8, 2024
    Inventors: SHINICHI MACHIDA, NOZOMU MATSUKAWA, FUMIYA SANO
  • Publication number: 20230415702
    Abstract: An inclination mechanism TM1 is provided at a wiper blade 30. The inclination mechanism TM1 inclines the wiper blade 30 with respect to a surface 11 a, so that a center Ct1 of a U-shaped hook part 23b is disposed forward in a wiping direction with respect to a center Ct2 of a blade rubber 50. Accordingly, at the time of each of forward wiping and return wiping of the wiper blade 30, it is possible to correctly incline the blade rubber 50 with respect to the surface 11 a.
    Type: Application
    Filed: September 22, 2022
    Publication date: December 28, 2023
    Applicant: MITSUBA Corporation
    Inventor: SHINICHI MACHIDA
  • Publication number: 20230326253
    Abstract: A biometric authentication system includes a first image capturer that captures a visible light image that is imaged by picking up first light reflected from a skin portion of a subject that is irradiated with visible light; a second image capturer that captures a first infrared image that is imaged by picking up second light that is reflected from the skin portion irradiated with first infrared light and that has a wavelength region including a first wavelength; and a determiner that determines, in accordance with a result of comparing the visible light image with the first infrared image, whether the subject is a living body and outputs a determination result.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 12, 2023
    Inventors: SANSHIRO SHISHIDO, SHINICHI MACHIDA
  • Patent number: 11777050
    Abstract: An optical sensor includes: a photosensitive layer that absorbs incident light to generate a first carrier with a first polarity and a second carrier with a second polarity different from the first polarity; a channel layer that is electrically connected to the photosensitive layer and that conducts the first carrier that has moved from the photosensitive layer; a counter electrode facing the channel layer through the photosensitive layer; an insulating layer positioned between the photosensitive layer and the counter electrode; and a source electrode and a drain electrode each electrically connected to the channel layer.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: October 3, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Machida, Takeyoshi Tokuhara, Sanshiro Shishido
  • Publication number: 20230292017
    Abstract: An imaging device includes a photoelectric conversion layer, a counter electrode, a first electrode, a second electrode, a first transfer gate, a second transfer gate, a first amplification transistor, and a second amplification transistor. The first transistor outputs a signal corresponding to the potential of the first gate in a first readout period in which the first transfer gate suppresses transfer of signal charges. The first readout period includes a first period in which the second transfer gate allows transfer of signal charges. The second transistor outputs a signal corresponding to the potential of the second gate in a second readout period in which the second transfer gate suppresses transfer of signal charges. The second readout period includes a second period in which the first transfer gate allows transfer of signal charges.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 14, 2023
    Inventors: MAKOTO SHOUHO, SHINICHI MACHIDA
  • Patent number: 11723225
    Abstract: An imaging device including a semiconductor substrate including a first surface that receives light from outside, and a second surface opposite to the first surface; a first transistor located on the second surface; and a photoelectric converter that faces the second surface and that receives light transmitted through the semiconductor substrate. The semiconductor substrate is a silicon substrate or a silicon compound substrate, and the photoelectric converter includes a first electrode electrically connected to the first transistor, a second electrode, and a photoelectric conversion layer that is located between the first electrode and the second electrode and that contains a material which absorbs light having a first wavelength longer than or equal to 1.1 ?m, and the material has a quantum nanostructure.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: August 8, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeyoshi Tokuhara, Sanshiro Shishido, Yasuo Miyake, Shinichi Machida
  • Patent number: 11659299
    Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: May 23, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Machida, Takeyoshi Tokuhara, Manabu Nakata, Sanshiro Shishido, Masaaki Yanagida, Masumi Izuchi
  • Publication number: 20230133421
    Abstract: An imaging device including a semiconductor substrate including a first surface that receives light from outside, and a second surface opposite to the first surface; a first transistor located on the second surface; and a photoelectric converter that faces the second surface and that receives light transmitted through the semiconductor substrate. The semiconductor substrate is a silicon substrate or a silicon compound substrate, and the photoelectric converter includes a first electrode electrically connected to the first transistor, a second electrode, and a photoelectric conversion layer that is located between the first electrode and the second electrode and that contains a material which absorbs light having a first wavelength longer than or equal to 1.1 ?m, and the material has a quantum nanostructure.
    Type: Application
    Filed: December 15, 2022
    Publication date: May 4, 2023
    Inventors: Takeyoshi TOKUHARA, Sanshiro SHISHIDO, Yasuo MIYAKE, Shinichi MACHIDA
  • Publication number: 20230026531
    Abstract: An imaging device includes: a semiconductor substrate; a plurality of pixel electrodes located above the semiconductor substrate and each electrically connected to the semiconductor substrate; a counter electrode located above the plurality of pixel electrodes; a first photoelectric conversion layer located between the counter electrode and the plurality of pixel electrodes; and at least one first light-shielding body located in the first photoelectric conversion layer or above the first photoelectric conversion layer. The first photoelectric conversion layer contains semiconductor quantum dots that absorb light in a first wavelength range and a coating material that covers the semiconductor quantum dots, the coating material absorbing light in a second wavelength range, the coating material emitting fluorescence in a third wavelength range. The at least one first light-shielding body absorbs or reflects light with a wavelength in at least part of the second wavelength range.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 26, 2023
    Inventor: SHINICHI MACHIDA
  • Patent number: 11563057
    Abstract: An imaging device includes a semiconductor substrate including a first surface receiving light from outside, and a second surface opposite to the first surface, a first transistor on the second surface, and a photoelectric converter facing the second surface and receiving light through the semiconductor substrate. The semiconductor substrate is a silicon or silicon compound substrate. The photoelectric converter includes a first electrode electrically connected to the first transistor, a second electrode, and a photoelectric conversion layer located between the first and second electrodes and containing a material absorbing light having a wavelength 1.1 ?m or longer. The first electrode is located between the second surface and the photoelectric conversion layer. A spectral sensitivity of the material in a region of 1.0 ?m or longer and shorter than 1.1 ?m is 0% to 5% of the maximum value of a spectral sensitivity of the material in 1.1 ?m or longer.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: January 24, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeyoshi Tokuhara, Sanshiro Shishido, Yasuo Miyake, Shinichi Machida
  • Publication number: 20220336745
    Abstract: An organic device includes at least one electrode, an insulating layer adjacent to the at least one electrode in a plan view, and an organic layer that is continuously in contact with an upper surface of the at least one electrode and an upper surface of the insulating layer. The organic layer contains a polymer of an organic material. The organic material contains a basic molecular skeleton and a polymerizable functional group. In the polymer, the organic material is polymerized through the polymerizable functional group.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 20, 2022
    Inventors: NOZOMU MATSUKAWA, KATSUYA NOZAWA, SHINICHI MACHIDA, SANSHIRO SHISHIDO
  • Patent number: 11456337
    Abstract: An imaging device includes at least one unit pixel cell including a photoelectric converter and a voltage application circuit. The photoelectric converter includes a first electrode, a light-transmitting second electrode, a first photoelectric conversion layer containing a first material and a second photoelectric conversion layer containing a second material. The impedance of the first photoelectric conversion layer is larger than the impedance of the second photoelectric conversion layer. The voltage application circuit applies a first voltage or a second voltage having a larger absolute value than the first voltage selectively between the first electrode and the second electrode.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: September 27, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Manabu Nakata, Masumi Izuchi, Shinichi Machida, Yasunori Inoue
  • Publication number: 20220216440
    Abstract: A photoelectric conversion element includes: a first electrode; a second electrode; and a photoelectric conversion layer disposed between the first electrode and the second electrode and containing semiconducting carbon nanotubes and a first material that functions as a donor or an acceptor for the semiconducting carbon nanotubes. The semiconducting carbon nanotubes have light absorption characteristics including a first absorption peak at a first wavelength, a second absorption peak at a second wavelength shorter than the first wavelength, and a third absorption peak at a third wavelength shorter than the second wavelength. The first material is transparent to light in at least one wavelength range selected from the group consisting of a first wavelength range between the first wavelength and the second wavelength and a second wavelength range between the second wavelength and the third wavelength.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 7, 2022
    Inventors: SHINICHI MACHIDA, KATSUYA NOZAWA, SANSHIRO SHISHIDO
  • Publication number: 20220217294
    Abstract: An imaging device includes: a first pixel array including a first photoelectric converter and first pixel electrodes connected to the first photoelectric converter; and a second pixel array including a second photoelectric converter and second pixel electrodes connected to the second photoelectric converter. The first pixel array and the second pixel array are stacked one on another. In a plan view, an area of an overlapping region defined by overlapping between the first pixel electrodes and a corresponding second pixel electrode of the second pixel electrodes is smaller than an area of a remaining region obtained by excluding the overlapping region from the corresponding second pixel electrode.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Inventors: SANSHIRO SHISHIDO, YUUKO TOMEKAWA, SHINICHI MACHIDA, TAKANORI DOI
  • Publication number: 20220103773
    Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Shinichi MACHIDA, Takeyoshi TOKUHARA, Manabu NAKATA, Sanshiro SHISHIDO, Masaaki YANAGIDA, Masumi IZUCHI
  • Patent number: 11277571
    Abstract: An image generation device includes: a voltage generator that generates a plurality of voltages each having a different voltage value; an image capturer that includes an organic photoconductive film, and performs imaging every time each of the plurality of voltages is applied; a luminance data obtainer that obtains a plurality of luminance data items corresponding to the plurality of voltages applied, each of the plurality of luminance data items being obtained from the imaging performed by the image capturer; and a color image generator that generates a color image based on the plurality of luminance data items.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: March 15, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kunio Nobori, Satoshi Sato, Takeo Azuma, Nobuhiko Wakai, Mitsuru Harada, Shinichi Machida, Masumi Izuchi
  • Patent number: 11233965
    Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 25, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Machida, Takeyoshi Tokuhara, Manabu Nakata, Sanshiro Shishido, Masaaki Yanagida, Masumi Izuchi
  • Patent number: 11233955
    Abstract: An imaging apparatus includes a unit pixel including a pixel electrode; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the pixel electrode and the counter electrode; and a computing circuit that acquires a first signal upon a first voltage being applied between the pixel electrode and the counter electrode, the first signal corresponding to an image captured with visible light and infrared light and a second signal upon a second voltage being applied between the pixel electrode and the counter electrode, the second signal corresponding to an image captured with visible light, and generates a third signal by performing a computation using the first signal and the second signal, the third signal corresponding to an image captured with infrared light.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: January 25, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Machida, Masashi Murakami, Takeyoshi Tokuhara, Masaaki Yanagida, Sanshiro Shishido, Manabu Nakata, Masumi Izuchi
  • Publication number: 20210313399
    Abstract: An imaging device includes a first pixel and a second pixel adjacent to the first pixel. Each of the first pixel and the second pixel includes a first electrode, a second electrode positioned on or above the first electrode and facing the first electrode, a photoelectric conversion layer positioned between the first electrode and the second electrode, and a first charge-blocking layer positioned between the first electrode and the photoelectric conversion layer. The first charge-blocking layer of the first pixel is separated from the first charge-blocking layer of the second pixel. The photoelectric conversion layer is disposed continuously to the first pixel and the second pixel. An area of the first charge-blocking layer of the first pixel is larger than an area of the first electrode of the first pixel in plan view.
    Type: Application
    Filed: June 14, 2021
    Publication date: October 7, 2021
    Inventors: SANSHIRO SHISHIDO, TAKAHIRO KOYANAGI, YUUKO TOMEKAWA, SHINICHI MACHIDA