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