Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6832820 | Core bar of elastic body track shoe | Hiroaki Watanabe, Kazuo Yasojima | 2004-12-21 |
| 6709077 | Core bar of elastic body track shoe | Hiroaki Watanabe, Kazuo Yasojima | 2004-03-23 |