P

Inventor

SHIRAISHI KATSUHIKO

JP18 patents
⚠️ This page may combine multiple inventors who share the name “SHIRAISHI KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

7 patents

MITSUBISHI PENCIL CO

6 patents

MITSUBISHI PENCIL KABUSHIKIKAI

3 patents

YOSHIDA SHUSAKU

1 patent

KURASHIGE JUN

1 patent