Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7232108 | Exhaust valve for a bag | Yoshio Shiozaki | 2007-06-19 |
| 7074008 | Small-sized hydroelectric generator | Yoshio Shiozaki | 2006-07-11 |
| 6712334 | Exhaust valve for a bag | Yoshio Shiozaki | 2004-03-30 |