Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355932 | Method of producing a compound roll | Ryosaku Nawata, Toshiyuki Hattori | 1994-10-18 |
| 5305522 | Method of producing a compound roll | Ryosaku Nawata, Kiyoshi Furushima | 1994-04-26 |