Inventor
TSUBOTA SHIGERU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “TSUBOTA SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI METALS LTD
6 patentsUS9794194B2Oct 17, 2017
Relay system and switching device
HITACHI METALS LTD17 citations82
US9525591B2Dec 20, 2016
Relay system and switching device
HITACHI METALS LTD19 citations82
US9819536B2Nov 14, 2017
Relay system and switching device
HITACHI METALS LTD3 citations69
US9590815B2Mar 7, 2017
Relay system and switching device
HITACHI METALS LTD0 citations40
US9525609B2Dec 20, 2016
Relay system and switching device
HITACHI METALS LTD0 citations40
US9300529B2Mar 29, 2016
Communication system and network relay device
HITACHI METALS LTD0 citations38