Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9617436 | Water-based ink composition and marking pen | Mayuko Tsujimoto, Makoto Ugajin | 2017-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9617436 | Water-based ink composition and marking pen | Mayuko Tsujimoto, Makoto Ugajin | 2017-04-11 |