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公开(公告)号：US20220361981A1
公开(公告)日：2022-11-17
申请号：US17765713
申请日：2020-08-21
Applicant: J. MORITA MFG. CORP.
Inventor： Hitoshi TANAKA , Tomoya MURATA , Shozo NAKAYAMA
Abstract: Provided is a dental handpiece capable of rotating a cutting tool at a high speed as compared with a conventional dental handpiece. A dental handpiece including coupling portion, a body, and a neck to be held by a used and a head connected to them, wherein the head includes a tool rotating mechanism that holds a cutting tool for treating a region to be treated, rotates based on rotation of a drive unit that is rotationally driven, and rotates the cutting tool, and the tool rotating mechanism has a rotation speed of at least 5.5 times or more a rotation speed of the drive unit.
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