Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370471 | Writing tool, with eraser dispenser | Toshihiko Kageyama, Youichi Nakazato, Yoshihide Mitsuya | 1994-12-06 |
| 5074694 | Latch mechanism for retractable writing instruments | Youichi Nakazato, Masuo Kubota, Yoshihide Mitsuya | 1991-12-24 |
| 5062727 | Writing tool | Toshihiko Kageyama, Youichi Nakazato, Yoshihide Mitsuya | 1991-11-05 |