Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6503966 | Gelled non-aqueous ball point pen ink for forming drawn line approximate to that of aqueous ball point pen and ball point using the ink | Takeshi Fujii, Teruaki Fukasawa | 2003-01-07 |
| 6479568 | Non-aqueous ball point pen ink and ball point pen using the ink | Takeshi Fujii, Teruaki Fukasawa | 2002-11-12 |