Patents by Inventor Jun SAKURADA

Jun SAKURADA 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: 20260022516
    Abstract: A sheet production apparatus includes a tank configured to store paper pieces, a motor, a blade provided in the tank and rotated by a force of the motor, a tube configured to take in the paper pieces transported outward by the rotation of the blade, a transport path configured to transport the paper pieces from the tube, a production mechanism configured to defibrate the transported paper pieces and produce a sheet, a measuring instrument configured to measure an amount of paper pieces from the tube, and a processor configured to correct a next operation of the tube based on the amount of paper pieces and correct an operation of the motor based on a moving average value of the amount of paper pieces.
    Type: Application
    Filed: July 14, 2025
    Publication date: January 22, 2026
    Inventors: Takashi ABE, Makoto SATO, Koji MOTOHASHI, Jun SAKURADA
  • Patent number: 12404633
    Abstract: A fibrous body processing apparatus includes a coarsely-crushed-pieces reservoir unit; a humidifying unit that generates humidified air and supplies the humidified air to the coarsely-crushed-pieces reservoir unit; a weight measurement unit that measures a weight of the coarsely crushed pieces let out of the coarsely-crushed-pieces reservoir unit; a fixed amount supplying unit that supplies a fixed amount of the coarsely crushed pieces measured by the weight measurement unit; a defibrating unit that defibrates the coarsely crushed pieces supplied from the fixed amount supplying unit; a first transportation portion through which the coarsely crushed pieces are sent from the coarsely-crushed-pieces reservoir unit to the weight measurement unit; a second transportation portion through which the coarsely crushed pieces are sent from the fixed amount supplying unit to the defibrating unit; and a generated at the humidifying unit is supplied to the defibrating unit while bypassing the weight measurement unit.
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: September 2, 2025
    Assignee: Seiko Epson Corporation
    Inventors: Jun Sakurada, Makoto Sato, Koji Motohashi, Karen Hasebe, Toshihiko Yamazaki, Takashi Abe
  • Publication number: 20250154720
    Abstract: A paper piece supply device includes a storage unit that stores paper pieces, a tube that discharges the paper pieces from the storage unit, a motor that rotates the tube, and a fixed portion positioned inside the tube and not movable with rotation of the tube.
    Type: Application
    Filed: November 7, 2024
    Publication date: May 15, 2025
    Inventors: Jun SAKURADA, Makoto SATO, Koji MOTOHASHI, Karen HASEBE, Takashi ABE
  • Publication number: 20250073655
    Abstract: A stirring device has a storage tank and a stirring member that stirs an inside of the storage tank, and the stirring member has a humidified air release port through which humidified air, which is air humidified, is released into the storage tank.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Inventors: Koji MOTOHASHI, Makoto SATO, Jun SAKURADA, Takashi ABE
  • Publication number: 20250075426
    Abstract: There is provided a crushed piece supply device including a storage tank that stores a crushed piece containing a fiber, a partition portion that partitions an inside of the storage tank into a first space and a second space positioned below the first space by narrowing the inside of the storage tank, an adjusting section that adjusts a moving amount of the crushed piece moving from the first space to the second space, a stirring section that stirs the crushed piece in the second space, and a discharge port through which the crushed piece is discharged from the second space.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Inventors: Jun SAKURADA, Makoto SATO, Koji MOTOHASHI, Karen HASEBE, Takashi ABE
  • Publication number: 20240102240
    Abstract: A fibrous body processing apparatus includes a coarsely-crushed-pieces reservoir unit; a humidifying unit that generates humidified air and supplies the humidified air to the coarsely-crushed-pieces reservoir unit; a weight measurement unit that measures a weight of the coarsely crushed pieces let out of the coarsely-crushed-pieces reservoir unit; a fixed amount supplying unit that supplies a fixed amount of the coarsely crushed pieces measured by the weight measurement unit; a defibrating unit that defibrates the coarsely crushed pieces supplied from the fixed amount supplying unit; a first transportation portion through which the coarsely crushed pieces are sent from the coarsely-crushed-pieces reservoir unit to the weight measurement unit; a second transportation portion through which the coarsely crushed pieces are sent from the fixed amount supplying unit to the defibrating unit; and a generated at the humidifying unit is supplied to the defibrating unit while bypassing the weight measurement unit.
    Type: Application
    Filed: September 26, 2023
    Publication date: March 28, 2024
    Inventors: Jun SAKURADA, Makoto SATO, Koji MOTOHASHI, Karen HASEBE, Toshihiko YAMAZAKI, Takashi ABE
  • Publication number: 20240102239
    Abstract: A fibrous body processing apparatus includes a humidifying unit, a first processing unit, a second processing unit, a first supply passage, a second supply passage, and a returning passage. The humidifying unit generates humidified air. The first processing unit processes a material that contains fibers. The second processing unit processes the material that was processed at the first processing unit. Humidified air is supplied from the humidifying unit to the first processing unit through the first supply passage. Humidified air is supplied from the first processing unit to the second processing unit, together with the material, through the second supply passage. The returning passage includes an upstream-side end portion and a downstream-side end portion. Humidified air is returned from the second supply passage or the second processing unit to the humidifying unit through the returning passage.
    Type: Application
    Filed: September 26, 2023
    Publication date: March 28, 2024
    Inventors: Karen HASEBE, Makoto SATO, Koji MOTOHASHI, Jun SAKURADA, Toshihiko YAMAZAKI, Takashi ABE
  • Patent number: 10220508
    Abstract: A robot includes a curved arm including a first member, a second member, and a coupling member and bending in a longitudinal direction, the first member couples to a distal end of the coupling member in the longitudinal direction, and the second member couples to a base end of the coupling member in the longitudinal direction.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 5, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masato Yokota, Jun Sakurada, Akio Niu
  • Publication number: 20160089797
    Abstract: A robot includes a base, an arm provided on the base, a connecting member provided in an interior of the base and an interior of the arm, a first fixing member that fixes the connecting member in the interior of the arm and guides the connecting member in the interior of the arm, and an inertial sensor, wherein the inertial sensor is not in contact with the connecting member.
    Type: Application
    Filed: September 28, 2015
    Publication date: March 31, 2016
    Inventors: Tetsuya KAWASE, Jun SAKURADA
  • Publication number: 20160089778
    Abstract: A robot includes a curved arm including a first member, a second member, and a coupling member and bending in a longitudinal direction, the first member couples to a distal end of the coupling member in the longitudinal direction, and the second member couples to a base end of the coupling member in the longitudinal direction.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Inventors: Masato YOKOTA, Jun SAKURADA, Akio NIU