Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783292 | Double-chuck mechanical pencil | Sachio Arai | 2004-08-31 |
| 6702158 | Knocking-type liquid container | Hidehei Kageyama, Yoshio Noguchi, Tadashi Keda | 2004-03-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783292 | Double-chuck mechanical pencil | Sachio Arai | 2004-08-31 |
| 6702158 | Knocking-type liquid container | Hidehei Kageyama, Yoshio Noguchi, Tadashi Keda | 2004-03-09 |