Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683118 | Oil-based pigment ink composition and oil-based pigment ink writing tool | Hidetoshi Fukuo, Masamitsu Takahashi | 2017-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683118 | Oil-based pigment ink composition and oil-based pigment ink writing tool | Hidetoshi Fukuo, Masamitsu Takahashi | 2017-06-20 |