Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7244206 | Roller chain transmission device | Isamu Okabe | 2007-07-17 |
| 7077774 | Roller chain transmission device | Isamu Okabe | 2006-07-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7244206 | Roller chain transmission device | Isamu Okabe | 2007-07-17 |
| 7077774 | Roller chain transmission device | Isamu Okabe | 2006-07-18 |