P

Inventor

HIRAIWA YOSHITAKA

JP4 patents
⚠️ This page may combine multiple inventors who share the name “HIRAIWA YOSHITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KUROSAKI REFRACTORIES CO

2 patents

KAWASO ELECTRIC IND CO LTD

1 patent

MORIKAWA KATSUMI

1 patent