Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6056463 | Aqueous ballpoint pen refill and process for producing the same | Koji Matsuo, Shinko Mukoda, Koichi Murakawa | 2000-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6056463 | Aqueous ballpoint pen refill and process for producing the same | Koji Matsuo, Shinko Mukoda, Koichi Murakawa | 2000-05-02 |