P

Inventor

OOYAMA KOUICHI

JP17 patents
⚠️ This page may combine multiple inventors who share the name “OOYAMA KOUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IZAWA HIDEO

8 patents

MIYAKOSHI PRINTING MACHINERY CO LTD

6 patents

MIYAKOSHI PRINTING MACH

2 patents

YAZAKI CORP

1 patent