Rotor unit, electric motor, and electric actuator

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12142969
APP PUB NO 20210234421A1
SERIAL NO

17059553

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rotor unit 1 used in an electric motor, the rotor unit 1 including a rotor core 5, a rotary shaft 3 inserted in an inner periphery of the rotor core 5, a plurality of magnets 6 attached to an outer peripheral surface of the rotor core 5, and a cover member 4 covering an outer periphery of each of the plurality of the magnets 6, in which the rotary shaft 3 is provided, on an outer peripheral surface of the rotary shaft 3, with a caulking part 3c configured to restrict an axial movement of the rotor core 5 with respect to the rotary shaft 3, and the caulking part 3c is configured to restrict an axial movement of the cover member 4 with respect to the rotor core 5.

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Patent Owner(s)

Patent OwnerAddress
NTN CORPORATIONOSAKA-SHI OSAKA 550-0003

International Classification(s)

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  • 2019 Application Filing Year
  • H02K Class
  • 3215 Applications Filed
  • 2232 Patents Issued To-Date
  • 69.43 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Naitou, Yuuki Shizuoka, JP 11 51

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges281314401 - 10020040060080010001200140016001800200022002400260028003000

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