{
  "abstract": "The present disclosure relates to a robot end effector for treating a surface of soft materials, and the end effector may include a coupler coupled to a tool flange of the robot; a motor coupled to the coupler to have a rotation axis orthogonal to a rotation axis of the tool flange; and a work tool connected to the motor to rotate according to the rotation of the motor, wherein the motor has a gear ratio lower than that of the motor provided in the robot.",
  "assignees": [
    "OPENPATH ROBOTICS CO LTD"
  ],
  "authors": [
    "CHA HYEON JE",
    "KANG HO SUN",
    "KWON YOUNG WOO"
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  "published_at": "2026-09-15T19:03:58.208847Z",
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  "source_date": "2026-04-02",
  "source_id": "US-2026091492-A1",
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  "title": "Robot end effector for surface treatment of soft materials and method for controlling robot having the same",
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