Patents by Inventor Tadashi Nakamura

Tadashi Nakamura 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: 20250110946
    Abstract: A collection device includes a service record acquirer that acquires a service record from a service database related to a service to be processed; and a user record updater that updates, based on the acquired service record, the user record. Upon starting of updating processing for updating the user record, the user record updater aggregates a remaining work amount of the updating processing of services, among the plurality of services, for which the updating processing has already started but has not ended and, in updating processing based on the service record related to the service to be processed, determines, in accordance with the aggregated remaining work amount, whether to perform determination processing.
    Type: Application
    Filed: September 27, 2024
    Publication date: April 3, 2025
    Applicant: Rakuten Group, Inc.
    Inventors: Tadashi Nakamura, Anshul Mohil, Alexey Besedin, Josue Nzajyayo
  • Publication number: 20250113486
    Abstract: A three-dimensional memory device includes a pair of alternating stacks of insulating layers and electrically conductive layers, where the pair of alternating stacks are laterally spaced from each other by a lateral isolation trench, memory openings vertically extending through a respective alternating stack of the pair of alternating stacks, memory opening fill structures located in a respective one of the memory openings and including a respective vertical semiconductor channel and a respective vertical stack of memory elements, and a lateral isolation trench fill structure located in the lateral isolation trench. Phosphorus-doped silicon oxide portions are located within or on sidewalls of the lateral isolation trench at levels of the insulating layers.
    Type: Application
    Filed: October 2, 2023
    Publication date: April 3, 2025
    Inventors: Nobuyuki FUJIMURA, Tadashi NAKAMURA, Satoshi SHIMIZU, Takumi MORIYAMA
  • Publication number: 20250024672
    Abstract: A method of forming three-dimensional memory device includes forming an alternating stack of insulating layers and semiconductor material layers over a substrate, and forming laterally alternating sequences of laterally-insulated electrode structures and dielectric isolation pillar structures through the alternating stack. At least a portion of the laterally-insulated electrode structures each include a memory film and a word line electrode.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 16, 2025
    Inventors: Takaaki IWAI, Shinsuke YADA, Tadashi NAKAMURA, Hiroyuki OGAWA
  • Publication number: 20240245377
    Abstract: Provided is an X-ray imaging apparatus that can understand a three-dimensional position of a treatment tool in real time during a medical operation without rotating a column of an X-ray tube. A first X-ray image is acquired by irradiating a subject with X-rays from a first X-ray tube supported by a first column and detecting the X-rays transmitted through the subject by an X-ray detector. A second X-ray image is acquired by irradiating the subject with X-rays from a second X-ray tube supported by a second column at a position shifted from an optical axis of the first X-ray tube and detecting the X-rays transmitted through the subject by the X-ray detector. A position of an image of a predetermined feature part included in the first X-ray image and a position of an image of the feature part included in the second X-ray image are used to calculate a three-dimensional position of the image of the predetermined feature part.
    Type: Application
    Filed: January 19, 2024
    Publication date: July 25, 2024
    Applicant: FUJIFILM Healthcare Corporation
    Inventors: Kazuki MATSUZAKI, Isao TAKAHASHI, Keisuke YAMAKAWA, Tadashi NAKAMURA
  • Publication number: 20240245369
    Abstract: Provided is an X-ray imaging apparatus that can understand a three-dimensional position of a treatment tool in real time during a medical operation without rotating a column of an X-ray tube. A first X-ray tube is disposed at a position at which a target part of a subject placed on a top plate is irradiated with X-rays, and a second X-ray tube is disposed by causing the second X-ray tube to move rotationally along a circular orbit about an axis connecting the first X-ray tube and the top plate. A first X-ray image is acquired by irradiating the subject with the X-rays from the first X-ray tube. A second X-ray image is acquired by irradiating the subject with X-rays from the second X-ray tube. A position of an image of a predetermined feature part included in the first X-ray image and a position of an image of the feature part included in the second X-ray image are used to calculate a three-dimensional position of the image of the predetermined feature part.
    Type: Application
    Filed: January 19, 2024
    Publication date: July 25, 2024
    Applicant: FUJIFILM Healthcare Corporation
    Inventors: Isao TAKAHASHI, Kazuki Matsuzaki, Keisuke Yamakawa, Tadashi Nakamura
  • Publication number: 20240245366
    Abstract: Provided is an X-ray imaging apparatus including two tubes, the X-ray imaging apparatus having a smaller exposure amount of a subject than a biplane X-ray imaging apparatus, maintaining an image quality of an X-ray image in a time axis direction, and improving the visibility of a device or the like. A first X-ray tube that irradiates the subject with X-rays, a second X-ray tube that irradiates the subject with X-rays from a direction different from a direction of the first X-ray tube, and one X-ray detector that detects the X-rays that are applied from the first X-ray tube and the second X-ray tube and are transmitted through the subject are provided. Pulse-like power is alternately supplied to the first X-ray tube at a first pulse width and to the second X-ray tube at a second pulse width such that a period in which the first X-ray tube applies the X-rays and a period in which the second X-ray tube applies the X-rays do not overlap with each other.
    Type: Application
    Filed: January 21, 2024
    Publication date: July 25, 2024
    Applicant: FUJIFILM Healthcare Corporation
    Inventors: Keisuke YAMAKAWA, Kazuki MATSUZAKI, Isao TAKAHASHI, Tadashi NAKAMURA
  • Publication number: 20240245380
    Abstract: Provided is an X-ray imaging apparatus that has a calibration function and can understand a three-dimensional position of a treatment tool in real time during a medical operation without rotating a column of an X-ray tube. A calibration member supported by any one of a first column, a second column, or a top plate, is disposed at a predetermined calibration position in a space irradiated with X-rays from a first X-ray tube and a second X-ray tube. A first X-ray image is acquired by irradiating a subject placed on the top plate with the X-rays from the first X-ray tube supported by the first column and detecting the X-rays transmitted through the subject by an X-ray detector disposed in the top plate. A second X-ray image is acquired by irradiating the subject with the X-rays from the second X-ray tube supported by the second column at a position shifted from an optical axis of the first X-ray tube and detecting the X-rays transmitted through the subject by the X-ray detector.
    Type: Application
    Filed: January 21, 2024
    Publication date: July 25, 2024
    Applicant: FUJIFILM Healthcare Corporation
    Inventors: Kazuki MATSUZAKI, Isao TAKAHASHI, Keisuke YAMAKAWA, Tadashi NAKAMURA
  • Publication number: 20240237920
    Abstract: A radiography apparatus is provided in which a doctor can recognize wear-off of anesthesia without interrupting an operation of an endoscope or the like. With the radiography apparatus, images of a plurality of parts of a subject are extracted from an image captured by a camera to calculate a movement amount for each part. The calculated movement amount for each part is weighted with a weight that is determined in advance for each of the plurality of parts, and in a case in which the movement amount after the weighting exceeds a predetermined threshold value, an operator is notified that the movement amount after the weighting exceeds the predetermined threshold value.
    Type: Application
    Filed: December 28, 2023
    Publication date: July 18, 2024
    Inventors: Koichiro Suzuki, Tadashi Nakamura
  • Publication number: 20240147723
    Abstract: A memory device includes source-level material layers including a source contact layer, an alternating stack of insulating layers and electrically conductive layers located over the source-level material layers, a memory opening vertically extending through the alternating stack and the source contact layer, and a memory opening fill structure located in the memory opening and including a vertical semiconductor channel including an intrinsic or first conductivity type semiconductor material, a memory film surrounding the vertical semiconductor channel, and a conical source pedestal in contact with the source contact layer and in contact with a bottom surface of the vertical semiconductor channel, such that at least portion of the conical source pedestal includes a second conductivity type semiconductor material.
    Type: Application
    Filed: July 12, 2023
    Publication date: May 2, 2024
    Inventors: Motoo OHAGA, Tadashi NAKAMURA, Takashi YUDA, Nobuyuki FUJIMURA, Hiroyuki OGAWA
  • Publication number: 20240015963
    Abstract: A semiconductor structure includes an alternating stack of insulating layers and electrically conductive layers, where the electrically conductive layers include word line electrically conductive layers and a first select-level electrically conductive layer, a memory opening vertically extending through the alternating stack, and a memory opening fill structure located in the memory opening and including a memory film and a vertical semiconductor channel. A vertical cross-sectional profile of an outer sidewall of the vertical semiconductor channel is straight throughout the word line electrically conductive layers and contains a lateral protrusion at a level of the first select-level electrically conductive layer.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 11, 2024
    Inventors: Tadashi NAKAMURA, Nobuyuki FUJIMURA
  • Patent number: 11840282
    Abstract: A work vehicle includes a hood swingable in an up-down direction between an open position, in which the hood is positioned expose an engine room, and a closed position, in which the hood is positioned to close the engine room, and at least one damper to urge the hood toward a side of the open position. The damper is swingable in the up-down direction to rise toward a standing position in response to the hood being swung from a position closer to the closed position toward a position closer to the open position and fall toward a lying position in response to the hood being swung from the position closer to the open position to the position closer to the closed position. An urging mechanism is provided to, while the damper is in a position closer to the lying position than an intermediate position, apply to the hood an urging force to urge the hood from the position closer to the closed position toward the position closer to the open position against the load of the hood.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: December 12, 2023
    Assignee: KUBOTA CORPORATION
    Inventors: Yasuo Yamamoto, Tadashi Nakamura
  • Patent number: 11808855
    Abstract: An optical device includes a light source provided with a plurality of surface-emitting laser elements to emit a laser beam, a scanner to scan the laser beam emitted from the light source, and an optical system disposed in an optical path between the light source and the scanner and to guide the laser beam to the scanner. The optical system includes a first optical element to control a divergence angle of the laser beam emitted from the light source and a second optical element to concentrate the laser beam that has passed through the first optical element onto a to-be-scanned surface of the scanner.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: November 7, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Toshiyuki Ikeoh, Yasufumi Yamada, Atsushi Sakai, Naoto Jikutani, Tsuyoshi Ueno, Nobunari Tsukamoto, Tadashi Nakamura, Kazuma Izumiya, Shuichi Suzuki
  • Patent number: 11782017
    Abstract: On a cross sectional surface X1 of a pump electrode 3 in a gas sensor element forming a gas sensor, a noble metal area 31 having Pt—Au aggregations, a solid electrolyte area 32 having solid electrolyte aggregations, a mixture area in which Pt—Au alloy and solid electrolyte are distributed, and pores 34. The mixture area 33 is formed within a range of 30 to 90% in an overall area of the cross sectional surface X1, excepting the pores 34. The pores are formed adjacent to the mixture area 33.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: October 10, 2023
    Assignees: DENSO CORPORATION, KABUSHIKIKAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Mitsunobu Nakatou, Keigo Mizutani, Takashi Araki, Tadashi Nakamura
  • Publication number: 20230213075
    Abstract: An electromagnetic braking device includes a brake disk, a fixed disk, an armature, a biasing member for biasing the armature, and a stator for attracting the armature. In a stator magnetic circuit member, a first yoke, a permanent magnet, and a second yoke are arranged in this order from one end to the other end of a U shape. In a rotatable state or a rotation braking state, even when the coil energization is OFF, the rotatable state or the rotation braking state is maintained. When a current of a predetermined magnitude flows through the coil in a first direction in the rotatable state, the state shifts to the rotation braking state, and when a current of a predetermined magnitude flows through the coil in a second direction in the rotation braking state, the state shifts to the rotatable state.
    Type: Application
    Filed: August 6, 2021
    Publication date: July 6, 2023
    Inventors: Yoichi HASEBE, Tadashi NAKAMURA, Osamu DOI
  • Patent number: 11608692
    Abstract: A threaded connection includes a pin and a box. The pin includes, in the order from a free end side of the pin toward a tubular body side thereof, an inner sealing surface, an inner male threaded portion, a shoulder portion, an outer male threaded portion, and an outer sealing surface. The box includes, in the order from a tubular body side of the box toward a free end side thereof, an inner sealing surface, an inner female threaded portion, a shoulder portion, an outer female threaded portion, and an outer sealing surface. Between the inner sealing surface and the inner female threaded portion of the box, an inner groove along a circumferential direction is provided, and some threads of the inner male threaded portion of the pin are contained in the inner groove.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: March 21, 2023
    Assignees: Nippon Steel Corporation, Vallourec Oil and Gas France
    Inventors: Satoshi Maruta, Yousuke Oku, Tadashi Nakamura
  • Patent number: 11591175
    Abstract: In a case where feeding of a subsequent sheet by a feed roller is started after the trailing edge of a preceding sheet is detected by a post-registration sensor, a control unit of a sheet feeder controls the feed roller to rotate at a first feeding speed, and in a case where the leading edge of the subsequent sheet has passed through a nip position between the feed roller and a separation roller, the control unit controls the feed roller to rotate at a second feeding speed.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: February 28, 2023
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Tadashi Nakamura, Yoshihiro Taniike, Shigeru Kosuda, Toru Sakai, Toshio Ohki, Masanori Tamai, Sadayuki Kaneko, Masamune Tokizawa
  • Patent number: 11579289
    Abstract: A distance measuring apparatus includes a light source to emit light beams, an optical scanner to scan the light beams output from the light source over a predetermined range, a light receiver to receive reflected light obtained as a result of the light beams being reflected by a target object, and to output detection signals, and a control circuit to measure a distance to the target object based on the detection signals. The light source including a plurality of light-emitting device groups that are arranged in a scan direction of a scan performed by the optical scanner, and the control circuit being to make the plurality of light-emitting device groups emit light at respective different timings in a single scan, and to measure the distance to the target object based on a sum of the detection signals.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: February 14, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shuichi Suzuki, Nobunari Tsukamoto, Tsuyoshi Ueno, Tadashi Nakamura, Naoto Jikutani, Kazuma Izumiya, Atsushi Sakai, Masayuki Yanagihashi, Yasufumi Yamada
  • Patent number: 11520019
    Abstract: A light signal detection device includes a light receiving optical system configured to receive a reflection signal reflected from an object when irradiation light emitted from an irradiation unit hits the object and reflects from the object; and circuitry configured to binarize the received reflection signal using a first threshold value, based on a determination of whether the reflection signal is equal to or greater than the first threshold value; binarize the received reflection signal using a second threshold value set with a given value similar to a noise signal value, based on a determination of whether the reflection signal is equal to or greater than the second threshold value; and measure a time difference between a time of emitting the irradiation light from the irradiation unit and a time of receiving a reflection signal equal to or greater than the first threshold value or the second threshold value.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 6, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuma Matsuura, Yuuta Yoshino, Takefumi Takizawa, Soichiro Yokota, Jun Kishiwada, Hiroyoshi Sekiguchi, Tadashi Nakamura
  • Patent number: 11447194
    Abstract: An operating mechanism of a work vehicle includes: an operating portion that is provided to a side console disposed beside a seat and can be operated by an operator; and a switching portion capable of switching between a used state in which the operating portion can be used and a non-used state in which the operating portion cannot be used.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 20, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Norita Tottori, Hironobu Nogami, Satoru Yamanaka, Tadashi Nakamura, Hideaki Ezaki, Masafumi Oshita
  • Patent number: 11417035
    Abstract: An X-ray tomosynthesis apparatus accurately extracts a region of a small high absorber in a subject on 2D measurement projection data. When pieces of the 2D measurement projection data for each of a plurality of projection angles are arranged in a projection angle direction, the 2D measurement projection data is shifted in a 2D plane so that part or all of a range of a high absorber region included in the 2D measurement projection data overlaps at least a range of the high absorber region included in 2D measurement projection data at an adjacent projection angle in an in-plane direction of the 2D plane. The 2D measurement projection data for each of the plurality of projection angles after shifting is arranged in the projection angle direction to obtain 3D measurement projection data, and a 3D region is obtained from a first start point by a region expansion process.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: August 16, 2022
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Keisuke Yamakawa, Keiko Takahashi, Tadashi Nakamura