Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Katsuhisa Yokozuka0
Yasushi Maejima0
Tsutomu Takaada0
Yoshinobu Ohtachi0
Date of Patent
April 2, 2024
0Patent Application Number
176251650
Date Filed
July 3, 2020
0Patent Citations
Patent Primary Examiner
Patent abstract
A vacuum pump and a washer which can reduce vibration of a rotor and the rotor which can reduce the vibration are provided. When an inertia moment ratio which is a ratio between the inertia moment around a z-axis and the inertia moment around an x-axis or a y-axis is larger than 1, a natural frequency ω
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