Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639217 | Splitter-type impeller | Yukio Ohtsuki | 1997-06-17 |
AO
Akio Onzuka
Overall (1997): #183,000 of 185,788Top 100%
1
Patents 1997