Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5920741 | Film guide device for film attachment | — | 1999-07-06 |
| 5318622 | Non-baked color pencil leads and method for preparing same | Katsunori Kitazawa, Toshiyuki Maeda, Michio Saito | 1994-06-07 |