Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599046 | Direct liquid type writing instrument | Makoto Fukushima | 2003-07-29 |
| 6547466 | Mechanical pencil | Hidehei Kageyama | 2003-04-15 |
| 6531108 | Process for producing free hydroxylamine aqueous solution | Kumiko Bansho | 2003-03-11 |