Inventor
OIWA NAOKI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “OIWA NAOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IHI CORP
5 patentsUS11229972B2Jan 25, 2022
Friction stir welding device and friction stir welding method
IHI CORP17 citations82
US8950651B2Feb 10, 2015
Friction joining method and joined structure
IHI CORP5 citations68
US12334779B2Jun 17, 2025
Rotor, electric motor, and rotor production method
IHI CORP1 citations58
US12424912B2Sep 23, 2025
Motor rotor with end ring
IHI CORP0 citations48
US10207357B2Feb 19, 2019
Friction stir welding device
IHI CORP0 citations36