Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8113732 | Direct liquid-writing instrument | Masahiko Itakura, Hiromoto Sasaki | 2012-02-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8113732 | Direct liquid-writing instrument | Masahiko Itakura, Hiromoto Sasaki | 2012-02-14 |