Patents by Inventor Tatsuki KITADA

Tatsuki KITADA 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).

  • Rotorcraft and rotor blade
    Patent number: 12623775
    Abstract: The disclosed rotorcraft includes a rotor blade and a prime mover. The rotor blade extends in a radial direction. The prime mover is configured to rotate the rotor blade. The rotor blade includes a blade body and a blade end portion. The blade end portion is disposed on an outer side of the blade body in the radial direction. The blade end portion includes a leading edge (i.e., an edge facing the rotational direction) that tilts in a rotational direction to the outer side in the radial direction. The disclosed configuration reduces noise produced by the rotorcraft.
    Type: Grant
    Filed: January 31, 2025
    Date of Patent: May 12, 2026
    Assignee: EXEDY CORPORATION
    Inventors: Kouzou Mori, Yasunori Kunisaki, Tatsuki Kitada, Masahiro Ohno
  • Propeller
    Patent number: 12600460
    Abstract: A propeller designed to prevent unintentional folding of the blades includes a hub, a blade, a first engaging portion, and a second engaging portion. The blade is attached to the hub to be radially movable with respect thereto. The blade is attached to the hub to be pivotable with respect thereto. The first engaging portion is provided in the hub. The second engaging portion is provided in the blade. The second engaging portion is configured to be engaged with the first engaging portion to restrict the blade from pivoting with respect to the hub when the blade is moved radially outward. The second engaging portion is configured to be disengaged from the first engaging portion when the blade is moved radially inward.
    Type: Grant
    Filed: April 18, 2025
    Date of Patent: April 14, 2026
    Assignee: EXEDY CORPORATION
    Inventors: Tatsuki Kitada, Mitsuru Kuwahata, Masahiro Ohno, Yasunori Kunisaki
  • PROPELLER
    Publication number: 20250333160
    Abstract: A propeller designed to prevent unintentional folding of the blades includes a hub, a blade, a first engaging portion, and a second engaging portion. The blade is attached to the hub to be radially movable with respect thereto. The blade is attached to the hub to be pivotable with respect thereto. The first engaging portion is provided in the hub. The second engaging portion is provided in the blade. The second engaging portion is configured to be engaged with the first engaging portion to restrict the blade from pivoting with respect to the hub when the blade is moved radially outward. The second engaging portion is configured to be disengaged from the first engaging portion when the blade is moved radially inward.
    Type: Application
    Filed: April 18, 2025
    Publication date: October 30, 2025
    Inventors: Tatsuki KITADA, Mitsuru KUWAHATA, Masahiro OHNO, Yasunori KUNISAKI
  • ROTORCRAFT AND ROTOR BLADE
    Publication number: 20250276789
    Abstract: The disclosed rotorcraft includes a rotor blade and a prime mover. The rotor blade extends in a radial direction. The prime mover is configured to rotate the rotor blade. The rotor blade includes a blade body and a blade end portion. The blade end portion is disposed on an outer side of the blade body in the radial direction. The blade end portion includes a leading edge (i.e., an edge facing the rotational direction) that tilts in a rotational direction to the outer side in the radial direction. The disclosed configuration reduces noise produced by the rotorcraft.
    Type: Application
    Filed: January 31, 2025
    Publication date: September 4, 2025
    Inventors: Kouzo MORI, Yasunori KUNISAKI, Tatsuki KITADA, Masahiro OHNO