Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6945726 | Refill for oil-based ink ballpoint pen and oil-based ink ballpoint pen | Syuji Ichikawa, Takayuki Ikai, Daisen Katou, Takeshi Kobayashi | 2005-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6945726 | Refill for oil-based ink ballpoint pen and oil-based ink ballpoint pen | Syuji Ichikawa, Takayuki Ikai, Daisen Katou, Takeshi Kobayashi | 2005-09-20 |