Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9566818 | Writing instrument | Toshimi Kamitani, Hiroyuki Okuyama, Mitsuhiro Kawabata | 2017-02-14 |
| 9132692 | Writing instrument | Toshimi Kamitani, Hiroyuki Okuyama, Mitsuhiro Kawabata | 2015-09-15 |
| 7922412 | Fluid feeder of applicator | Kouhei Miyamoto | 2011-04-12 |