Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387984 | Aqueous ballpoint ink composition | — | 2002-05-14 |
| 6332728 | Ball for ball-point pen | Yasunori Nakatani, Atsushi Ito, Hiroyoshi Yamamoto | 2001-12-25 |
| 6036767 | Aqueous pigment dispersion composition for electro-deposition color coating | Shigeyasu Inoue | 2000-03-14 |