Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D351416 | Ball point pen | Shinkichi Katayama | 1994-10-11 |
| D351417 | Cap for a writing instrument | — | 1994-10-11 |
| D344748 | Computer ribbon reinking system | Keiichi Emura, Hiroshi Wada | 1994-03-01 |