Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686155 | Hollow cylindrical member | Yuichi Aizawa | 1997-11-11 |
| 5665441 | Hollow cylindricall member | Yuichi Aizawa | 1997-09-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686155 | Hollow cylindrical member | Yuichi Aizawa | 1997-11-11 |
| 5665441 | Hollow cylindricall member | Yuichi Aizawa | 1997-09-09 |