Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11051993 | Tampon applicator | Koichi Yamaki | 2021-07-06 |
| 9918882 | Tampon applicator and sanitary tampon | Yukihiro Ito, Kenta Taniguchi, Kouichi Yamaki, Azusa Matsushima | 2018-03-20 |
| 8834438 | Sanitary tampon | Masato Isono, Koichi Yamaki, Hitoshi Watanabe | 2014-09-16 |