P

Inventor

KOSAKA WATARU

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

IDEMITSU PETROCHEMICAL CO

7 patents

SUMITOMO BAKELITE CO

3 patents

OKUBO NAOTO

1 patent