P

Inventor

OYAMADA TETSUYA

JP23 patents
⚠️ This page may combine multiple inventors who share the name “OYAMADA TETSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON MICROMETAL CORP

12 patents

NIPPON STEEL CHEMICAL & MAT CO LTD

10 patents

NIPPON STEEL & SUMIKIN MAT CO

1 patent