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).
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Patent number: 12570895Abstract: 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: GrantFiled: July 10, 2024Date of Patent: March 10, 2026Assignee: Toppan Inc.Inventors: Akiharu Miyanaga, Tetsuji Ito, Mayuko Watanabe
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Patent number: 12283076Abstract: 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: GrantFiled: December 25, 2020Date of Patent: April 22, 2025Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shiori Sugimoto, Mayuko Watanabe, Ryuichi Tanida, Hideaki Kimata
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Publication number: 20250084305Abstract: 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: ApplicationFiled: January 28, 2021Publication date: March 13, 2025Inventors: TADASHI KOBASHI, HIROHISA YAMADA, TAKAHIRO DOE, Keisuke KITANO, Masaki YAMAMOTO, Yuko OGURA, Masanori TANAKA, Mikihiro TAKASAKI, Yuka TAKAMIZUMA, Soichiro NIKATA, Tetsuji ITO, Mayuko WATANABE
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Patent number: 12136244Abstract: 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: GrantFiled: June 24, 2019Date of Patent: November 5, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Mayuko Watanabe, Ryuichi Tanida, Takayuki Onishi, Atsushi Shimizu
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Publication number: 20240365576Abstract: 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: ApplicationFiled: July 10, 2024Publication date: October 31, 2024Applicant: TOPPAN INC.Inventors: Akiharu MIYANAGA, Tetsuji ITO, Mayuko WATANABE
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Publication number: 20240360360Abstract: 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: ApplicationFiled: January 28, 2021Publication date: October 31, 2024Inventors: Masaki YAMAMOTO, Kazuki GOTO, HIROHISA YAMADA, MASAYA UEDA, Yuko OGURA, Masanori TANAKA, Mikihiro TAKASAKI, Yuka TAKAMIZUMA, Soichiro NIKATA, Tetsuji ITO, Mayuko WATANABE
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Patent number: 12069878Abstract: 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: GrantFiled: April 7, 2023Date of Patent: August 20, 2024Assignee: TOPPAN INC.Inventors: Akiharu Miyanaga, Tetsuji Ito, Mayuko Watanabe
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Publication number: 20240265629Abstract: 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 dataType: ApplicationFiled: August 6, 2021Publication date: August 8, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Mayuko WATANABE, Ryuichi TANIDA, Isamu IGARASHI, Hideaki KIMATA
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DECODING METHOD, DECODING APPARATUS, DECODING PROGRAM AND DATA STRUCTURE OF ENCODED POINT CLOUD DATA
Publication number: 20240046525Abstract: 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: ApplicationFiled: December 25, 2020Publication date: February 8, 2024Inventors: Shiori SUGIMOTO, Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA -
Publication number: 20230419558Abstract: 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: ApplicationFiled: December 25, 2020Publication date: December 28, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shiori SUGIMOTO, Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
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Publication number: 20230243925Abstract: 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: ApplicationFiled: May 29, 2020Publication date: August 3, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
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Publication number: 20230245349Abstract: 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: ApplicationFiled: May 29, 2020Publication date: August 3, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
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Publication number: 20230247849Abstract: 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: ApplicationFiled: April 7, 2023Publication date: August 3, 2023Applicant: NS MATERIALS INC.Inventors: Akiharu MIYANAGA, Tetsuji ITO, Mayuko WATANABE
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Patent number: 11672135Abstract: 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: GrantFiled: November 7, 2018Date of Patent: June 6, 2023Assignee: NS MATERIALS INC.Inventors: Akiharu Miyanaga, Tetsuji Ito, Mayuko Watanabe
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Publication number: 20230011947Abstract: 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: ApplicationFiled: December 9, 2019Publication date: January 12, 2023Inventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
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Publication number: 20220405981Abstract: A decoding method executed by a decoding device for decoding encoded data from point cloud data includes: acquiring an occupancy code represented in an N (1?N?8)-ary tree structure by decoding the encoded data; repeating a process of generating an N-ary tree structure until a block has a predetermined size, the process being a process in which a cube configured to include all the point cloud data is divided into eight blocks and thereafter when a bit of an occupancy code corresponding to a divided block is 1, the block is further divided; and acquiring, as coordinates of a point in the point cloud data, coordinates of a block of the predetermined size where a bit of an occupancy code corresponding to the block of the predetermined size is 1. In the repeating, the decoding device determines a value of N of the N-ary tree structure for a block to be divided on a basis of an inclusion relation between the block to be divided and a non-occupancy region set in advance.Type: ApplicationFiled: November 26, 2019Publication date: December 22, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Mayuko WATANABE, Ryuichi TANIDA, Hideaki KIMATA
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Publication number: 20220375033Abstract: A deep feature generation unit (20) inputs an inference image from an input layer (21) of a neural network, performs forward propagation in the neural network, and outputs a plurality of frame images that each include a channel image and are aligned in a predetermined first sequence as intermediate output values from an intermediate layer (22), which is a predetermined layer that is not an output layer of the neural network. A rearrangement unit (30) rearranges the frame images aligned in the first sequence into frame images in a second sequence based on a predetermined rearrangement sequence from the first sequence to the second sequence, such that a total of degrees of similarity between adjacent frame images in the second sequence is greater than a total of degrees of similarity between adjacent frame images in the first sequence.Type: ApplicationFiled: November 15, 2019Publication date: November 24, 2022Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Satoshi SUZUKI, Motohiro TAKAGI, Ryuichi TANIDA, Mayuko WATANABE, Hideaki KIMATA
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Publication number: 20220358684Abstract: 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: ApplicationFiled: June 24, 2019Publication date: November 10, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Mayuko WATANABE, Ryuichi TANIDA, Takayuki ONISHI, Atsushi SHIMIZU
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Publication number: 20220199925Abstract: The electroluminescent element includes a QD layer. QD phosphor particles contained in the QD layer are nanocrystals containing zinc and selenium, or zinc, selenium, and sulfur. A fluorescent half width of the QD phosphor particles is 25 nm or less, and a fluorescent peak wavelength of the QD phosphor particles is 410 nm or more and 470 nm or less. The film thickness of the QD layer is 12 nm or more and 49 nm or less.Type: ApplicationFiled: April 17, 2019Publication date: June 23, 2022Inventors: Tadashi KOBASHI, Masaki YAMAMOTO, Yuko OGURA, Yuka TAKAMIZUMA, Masanori TANAKA, Soichiro NIKATA, Tetsuji ITO, Mayuko WATANABE
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Publication number: 20220199924Abstract: The electroluminescent element includes a QD layer and a hole transport layer. QD phosphor particles contained in the QD layer are nanocrystals containing zinc and selenium, or zinc, selenium, and sulfur. A fluorescent half width of the QD phosphor particles is 25 nm or less, and a fluorescent peak wavelength of the QD phosphor particles is 410 nm or more and 470 nm or less. The hole transport layer includes poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(4,4?-(N-(4-sec-butylphenyl)diphenylamine)]. A film thickness of the hole transport layer is 10 nm or more and 57 nm or less.Type: ApplicationFiled: April 17, 2019Publication date: June 23, 2022Inventors: Tadashi KOBASHI, Masaki YAMAMOTO, Yuko OGURA, Yuka TAKAMIZUMA, Masanori TANAKA, Soichiro NIKATA, Tetsuji ITO, Mayuko WATANABE