Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517273 | Free-ink type writing instrument | Takao Koyama, Kazuhisa Kirita | 2003-02-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517273 | Free-ink type writing instrument | Takao Koyama, Kazuhisa Kirita | 2003-02-11 |