Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10576775 | Knock type writing instrument | Kazuhiko Furukawa, Yusuke Nakamura, Kazuhiko Takanashi, Atsushi Nakashima, Yoshihiro MANTA | 2020-03-03 |
| 9636940 | Writing instrument | Toshimi Kamitani, Satoru Banzai, Yosuke Setagawa, Hitoshi Kino, Tooru Nakajima +1 more | 2017-05-02 |
| 8292530 | Knock type writing instrument | Hisami Tamano | 2012-10-23 |
| 7931415 | Knock-type writing instrument having a shock-relaxing device | Hisami Tamano | 2011-04-26 |