P

Inventor

USUBA KEIJI

JP8 patents
⚠️ This page may combine multiple inventors who share the name “USUBA KEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

4 patents

YOSHIDA AKIHIKO

3 patents

HITACHI COMM TECH LTD

1 patent