P

Inventor

HAYASI YOSIO

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

MITSUBISHI CHEM IND

2 patents

MITSUBISHI PETROCHEMICAL CO

1 patent

RIKAGAKU KENKYUSHO AND MITSUBI

1 patent