P

Inventor

KOYANAGI HIROO

JP8 patents
⚠️ This page may combine multiple inventors who share the name “KOYANAGI HIROO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON KAYAKU KK

6 patents

SAKATO KOSAKUSHO KK

1 patent

TANAKA RYUTARO

1 patent