Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682941 | Device for producing molds | Ryoji Kanayama, Tadashi Nishida | 1997-11-04 |
| 5660221 | Apparatus and method for producing molds | Ryoji Kanayama, Kuniyasu Mori, Kazuo Sugimoto | 1997-08-26 |