P

Inventor

WATANABE KEN-ICHI

US4 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE KEN-ICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

2 patents

DAINIPPON SUMITOMO PHARMA CO

1 patent

SONY CORP

1 patent