Inventor
NAKAGAWA RYOJI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA RYOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
5 patentsUS8988176B2Mar 24, 2015
Superconducting electromagnet device, cooling method therefor, and magnetic resonance imaging device
HITACHI LTD11 citations82
US8989828B2Mar 24, 2015
Superconducting magnet apparatus
HITACHI LTD2 citations61
US11029254B2Jun 8, 2021
Welding monitoring system and welding monitoring method
HITACHI LTD0 citations60
US10935500B2Mar 2, 2021
Welding monitoring system and welding monitoring method
HITACHI LTD0 citations60
US12042877B2Jul 23, 2024
Welding management system
HITACHI LTD0 citations47