Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659671 | Ink introducing tube and writing instrument incorporated with the same | Shigeo Yamada | 2003-12-09 |
| 6629798 | Pen | Toshio Manabe | 2003-10-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659671 | Ink introducing tube and writing instrument incorporated with the same | Shigeo Yamada | 2003-12-09 |
| 6629798 | Pen | Toshio Manabe | 2003-10-07 |