Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9873806 | Ink composition for aqueous ink ball point pen | Yusuke Kobayashi, Tomoyuki Akaki | 2018-01-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9873806 | Ink composition for aqueous ink ball point pen | Yusuke Kobayashi, Tomoyuki Akaki | 2018-01-23 |