Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5507873 | Vertical boat | Yutaka Ishizuka, Yoshiyuki Watanabe, Tatsuo Nozawa, Shinzi Sawanobori | 1996-04-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5507873 | Vertical boat | Yutaka Ishizuka, Yoshiyuki Watanabe, Tatsuo Nozawa, Shinzi Sawanobori | 1996-04-16 |