Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10576774 | Ballpoint pen | Takeo Fukumoto, Tooru Nakajima, Yusuke Kobayashi, Tomoyuki Akagi | 2020-03-03 |
| 10576775 | Knock type writing instrument | Yoshiharu Namiki, Yusuke Nakamura, Kazuhiko Takanashi, Atsushi Nakashima, Yoshihiro MANTA | 2020-03-03 |