P

Inventor

OHTSUKA HIDEFUMI

JP11 patents
⚠️ This page may combine multiple inventors who share the name “OHTSUKA HIDEFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

8 patents

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

2 patents

HITACHI KOKI KK

1 patent