Inventor
SEKIYAMA NAOKI
JP5 patents
Patents
5 patentsUS12276197B2Apr 15, 2025
Tunnel excavation device
KOMATSU MFG CO LTD0 citations59
US12173608B2Dec 24, 2024
Tunnel excavation device
KOMATSU MFG CO LTD0 citations58
US12258864B2Mar 25, 2025
Tunnel excavation device
KOMATSU MFG CO LTD0 citations57
US12173607B2Dec 24, 2024
Tunnel excavation device
KOMATSU MFG CO LTD0 citations57
US12435629B2Oct 7, 2025
Tunnel excavation device
KOMATSU MFG CO LTD0 citations48