Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667813 | Mandrel for cooling | Tomozi Mizutani, Katsuyuki Yokota, Hisashi Kojyou | 1997-09-16 |
| 5593703 | Mandrel for cooling | Tomozi Mizutani, Katsuyuki Yokota, Hisashi Kojyou | 1997-01-14 |