Patents by Inventor Mayuko Watanabe

Mayuko Watanabe 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: 20260344176
    Abstract: To provide a display device that makes it possible to select a preferred combination of materials for an electron transport layer and a hole transport layer and a method for manufacturing the display device. The present invention is a display device including a display region, wherein the display region includes a light emitting element, in which a first electrode, a light emitting layer, a second electrode, an electron transport layer or a hole transport layer that is formed between the first electrode and the light emitting layer, and a hole transport layer or an electron transport layer that is formed between the second electrode and the light emitting layer are stacked, the electron transport layer contains at least one of ZnO, MgZnO, SnO2 and SnO, and the hole transport layer contains at least one of NiO and MoO.
    Type: Application
    Filed: March 27, 2026
    Publication date: October 29, 2026
    Applicant: TOPPAN Holdings Inc.
    Inventors: Akiharu MIYANAGA, Tetsuji ITO, Mayuko WATANABE
  • Publication number: 20260344168
    Abstract: A solar cell that can be produced using a wet process and a method for producing the solar cell. The solar cell includes an electron transport layer, an active layer and a hole transport layer, wherein the active layer contains a perovskite semiconductor, the electron transport layer contains at least one of ZnO, MgZnO and SnO, and the hole transport layer contains at least one of NiO and MoO.
    Type: Application
    Filed: June 15, 2026
    Publication date: October 29, 2026
    Applicant: TOPPAN Holdings Inc.
    Inventors: Akiharu MIYANAGA, Mayuko WATANABE, Tetsuji ITO
  • Publication number: 20260231594
    Abstract: An infrared sensor is provided that is capable of selecting a preferred combination of materials for an electron transport layer and a hole transport layer, and a method for producing the infrared sensor. An infrared sensor includes an electron transport layer, a light absorption layer and a hole transport layer. The light absorption layer contains quantum dots, the electron transport layer contains at least one metal oxide selected from ZnO, MgZnO, SnO2 and SnO, and the hole transport layer contains at least one metal oxide selected from NiO and MOO. Oxidation deficiency in the metal oxide constituting the electron transport layer and the hole transport layer is smaller than that in a bulk material.
    Type: Application
    Filed: March 27, 2026
    Publication date: August 6, 2026
    Applicant: TOPPAN Holdings Inc.
    Inventors: Akiharu MIYANAGA, Mayuko WATANABE, Tetsuji ITO
  • Publication number: 20260212533
    Abstract: An acquisition unit of a learning device acquires point information for each pixel from a plurality of learning images observed in different wavelength ranges, the point information having a 5-dimensional array obtained by combining 3-dimensional coordinates of points located on a line of sight and a vector indicating a direction of the line of sight. A learning unit of the learning device learns a density estimation multilayer perceptron that estimates a density estimation value which is an estimation value of a probability that there is a substance generating a signal at a point by using the plurality of learning images and the point information acquired by the acquisition unit from the plurality of learning images.
    Type: Application
    Filed: December 7, 2022
    Publication date: July 23, 2026
    Applicant: NTT, Inc.
    Inventors: Kana KURATA, Mayuko WATANABE, Jun SHIMAMURA, Ryuichi TANIDA
  • Publication number: 20260176525
    Abstract: Provided is a display device containing quantum dots. A display device includes a display area. The display area includes a light emitting device in which a first electrode, a first layer between the first electrode and an emitting layer, the emitting layer, a second layer between the emitting layer and a second electrode, and the second electrode are stacked in that order on a substrate. The emitting layer is formed of an inorganic layer containing quantum dots, and the light emitting device is a top emission device. An electron transport layer or an electron injection layer is provided in the first layer between the first electrode and the emitting layer, or in the second layer between the emitting layer and the second electrode. The electron transport layer or the electron injection layer comprises SnO.
    Type: Application
    Filed: February 3, 2026
    Publication date: June 25, 2026
    Applicant: TOPPAN INC.
    Inventors: Akiharu MIYANAGA, Tetsuji ITO, Mayuko WATANABE
  • Patent number: 12570895
    Abstract: Provided is a display device containing quantum dots. A display device includes a display area. The display area has a light emitting device in which a first electrode, a layer between the first electrode and an emitting layer, the emitting layer, a layer between the emitting layer and a second electrode, and the second electrode are stacked in this order on a substrate. The emitting layer is formed of an inorganic layer containing quantum dots, and the light emitting device is a top emission device. A thin film transistor connected to the light emitting device is preferably an n-ch TFT.
    Type: Grant
    Filed: July 10, 2024
    Date of Patent: March 10, 2026
    Assignee: Toppan Inc.
    Inventors: Akiharu Miyanaga, Tetsuji Ito, Mayuko Watanabe
  • Patent number: 12283076
    Abstract: A decoding method is a decoding method performed by a decoding device, the decoding method including steps of: acquiring, from among a plurality of slice numbers indicating a plurality of slices associated with encoded data of the entire point cloud distributed in a three-dimensional space, a first slice number indicating a first slice associated with encoded data of a point cloud of a first space that is a portion of the three-dimensional space, on the basis of a pointer indicating the first slice; and acquiring the encoded data of the point cloud of the first space on the basis of the first slice number, and decoding point cloud data of the first space from the encoded data of the point cloud of the first space.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: April 22, 2025
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shiori Sugimoto, Mayuko Watanabe, Ryuichi Tanida, Hideaki Kimata
  • Publication number: 20250084305
    Abstract: A QD is a Cd-free quantum dot including a core and a shell and configured to emit blue light. The core at least contains Zn and Se. The shell has a film thickness in a range from 0.5 nm to 3 nm, contains Zn, Se, and S in a boundary portion adjacent to the core, and contains Zn and S in an outermost portion.
    Type: Application
    Filed: January 28, 2021
    Publication date: March 13, 2025
    Inventors: TADASHI KOBASHI, HIROHISA YAMADA, TAKAHIRO DOE, Keisuke KITANO, Masaki YAMAMOTO, Yuko OGURA, Masanori TANAKA, Mikihiro TAKASAKI, Yuka TAKAMIZUMA, Soichiro NIKATA, Tetsuji ITO, Mayuko WATANABE
  • Patent number: 12136244
    Abstract: An encoding device includes a division unit that acquires three-dimensional data representing positions of a plurality of points distributed along a surface of an object in a three-dimensional space and divides a parent space including the points in the three-dimensional space into a plurality of child spaces and an encoding unit that changes, based on a position of a target space, which is the child space, to which a sign representing whether the points are included is allocated, according to whether the points are included in a first child space adjacent to the target space, processing for allocating the sign to the target space and a second child space adjacent to the target space.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 5, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mayuko Watanabe, Ryuichi Tanida, Takayuki Onishi, Atsushi Shimizu
  • Publication number: 20240365576
    Abstract: Provided is a display device containing quantum dots. A display device includes a display area. The display area has a light emitting device in which a first electrode, a layer between the first electrode and an emitting layer, the emitting layer, a layer between the emitting layer and a second electrode, and the second electrode are stacked in this order on a substrate. The emitting layer is formed of an inorganic layer containing quantum dots, and the light emitting device is a top emission device. A thin film transistor connected to the light emitting device is preferably an n-ch TFT.
    Type: Application
    Filed: July 10, 2024
    Publication date: October 31, 2024
    Applicant: TOPPAN INC.
    Inventors: Akiharu MIYANAGA, Tetsuji ITO, Mayuko WATANABE
  • Publication number: 20240360360
    Abstract: A quantum dot includes a core including Zn and Se, and a shell composed of ZnS and provided on a surface of the core, adjacently to the core. The quantum dot-emits blue light, is Cd free, and has a particle diameter within a range from 3 nm to 20 nm and a fluorescence lifetime in a thin film state of 50 ns or less.
    Type: Application
    Filed: January 28, 2021
    Publication date: October 31, 2024
    Inventors: Masaki YAMAMOTO, Kazuki GOTO, HIROHISA YAMADA, MASAYA UEDA, Yuko OGURA, Masanori TANAKA, Mikihiro TAKASAKI, Yuka TAKAMIZUMA, Soichiro NIKATA, Tetsuji ITO, Mayuko WATANABE
  • Patent number: 12069878
    Abstract: Provided is a display device containing quantum dots. A display device includes a display area. The display area has a light emitting device in which a first electrode, a layer between the first electrode and an emitting layer, the emitting layer, a layer between the emitting layer and a second electrode, and the second electrode are stacked in this order on a substrate. The emitting layer is formed of an inorganic layer containing quantum dots, and the light emitting device is a top emission device. A thin film transistor connected to the light emitting device is preferably an n-ch TFT.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: August 20, 2024
    Assignee: TOPPAN INC.
    Inventors: Akiharu Miyanaga, Tetsuji Ito, Mayuko Watanabe
  • Publication number: 20240265629
    Abstract: A point cloud data processing device includes: a point cloud data storage unit that stores a plurality of pieces of point cloud data measured at an arbitrary measurement time at a plurality of measurement positions in a three-dimensional space; and a merged point cloud data generation unit that generates merged point cloud data in a time-series order based on the point cloud data stored in the point cloud data storage unit, the merged point cloud data including the point cloud data corresponding to any one of the measurement times, location data indicating a location of a point when pieces of point cloud data measured before the measurement time were integrated in a time-series order, and reference data assigned to each piece of location data, for specifying the point cloud data including the point indicated by the location data
    Type: Application
    Filed: August 6, 2021
    Publication date: August 8, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mayuko WATANABE, Ryuichi TANIDA, Isamu IGARASHI, Hideaki KIMATA
  • Publication number: 20240046525
    Abstract: A reference specifying unit specifies reference values corresponding to a plurality of points of point cloud data. A residual decoding unit decodes attribute residuals of the plurality of points from encoded residual data obtained by encoding the attribute residuals, the attribute residuals of the plurality of points being residuals of attribute values of the plurality of points with respect to the reference values. An attribute value calculation unit calculates, for each of the plurality of points, an attribute value of the point from an attribute residual and a reference value.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 8, 2024
    Inventors: Shiori SUGIMOTO, Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
  • Publication number: 20230419558
    Abstract: A decoding method is a decoding method performed by a decoding device, the decoding method including steps of: acquiring, from among a plurality of slice numbers indicating a plurality of slices associated with encoded data of the entire point cloud distributed in a three-dimensional space, a first slice number indicating a first slice associated with encoded data of a point cloud of a first space that is a portion of the three-dimensional space, on the basis of a pointer indicating the first slice; and acquiring the encoded data of the point cloud of the first space on the basis of the first slice number, and decoding point cloud data of the first space from the encoded data of the point cloud of the first space.
    Type: Application
    Filed: December 25, 2020
    Publication date: December 28, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shiori SUGIMOTO, Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
  • Publication number: 20230243925
    Abstract: A noise determination apparatus includes an acquisition unit and a determination unit. The acquisition unit acquires n-branch tree structure data. The n-branch tree structure data includes information on the presence or absence of a point for a divided region obtained by dividing, by an n-branch tree structure including a plurality of layers, a spatial region represented by point cloud data including information on a position of a point, and includes, for the divided region including only one point, a sign representing the point instead of information on a divided region in a layer lower than the divided region. The determination unit determines a point represented by the sign to be noise in a layer higher than a predetermined layer.
    Type: Application
    Filed: May 29, 2020
    Publication date: August 3, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
  • Publication number: 20230245349
    Abstract: A data update method for replacing at least part of encoded point cloud data in which presence or absence of a point is represented by a multi-tree structure for an individual divided region of a region indicated by point cloud data without decoding the multi-tree structure includes acquiring replacement destination data, acquiring replacement source data, which is the encoded point cloud data of the individual divided region corresponding to data to be replaced, and replacing the replacement source data with the replacement destination data.
    Type: Application
    Filed: May 29, 2020
    Publication date: August 3, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
  • Publication number: 20230247849
    Abstract: Provided is a display device containing quantum dots. A display device includes a display area. The display area has a light emitting device in which a first electrode, a layer between the first electrode and an emitting layer, the emitting layer, a layer between the emitting layer and a second electrode, and the second electrode are stacked in this order on a substrate. The emitting layer is formed of an inorganic layer containing quantum dots, and the light emitting device is a top emission device. A thin film transistor connected to the light emitting device is preferably an n-ch TFT.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Applicant: NS MATERIALS INC.
    Inventors: Akiharu MIYANAGA, Tetsuji ITO, Mayuko WATANABE
  • Patent number: 11672135
    Abstract: Provided is a display device containing quantum dots. A display device includes a display area. The display area has a light emitting device in which a first electrode, a layer between the first electrode and an emitting layer, the emitting layer, a layer between the emitting layer and a second electrode, and the second electrode are stacked in this order on a substrate. The emitting layer is formed of an inorganic layer containing quantum dots, and the light emitting device is a top emission device. A thin film transistor connected to the light emitting device is preferably an n-ch TFT.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 6, 2023
    Assignee: NS MATERIALS INC.
    Inventors: Akiharu Miyanaga, Tetsuji Ito, Mayuko Watanabe
  • Publication number: 20230011947
    Abstract: Disclosed is a decoding method for decoding encoded data obtained by encoding a cube that includes three-dimensional point cloud data. The decoding method includes a step of obtaining point occupation states of solids obtained after division in one direction, from the encoded data, wherein the direction of the division is determined based on correlation among the point occupation states of the solids after the division. Another decoding method and a decoding apparatus are also disclosed.
    Type: Application
    Filed: December 9, 2019
    Publication date: January 12, 2023
    Inventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA