Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12343888 | Attachment for electric hair-cutting device | Daisuke Takano, Hitoshi Ogawa | 2025-07-01 |
| 10434669 | Electric shaver | Ryo Suzuki, Kotaro Yanagi | 2019-10-08 |
| 10220530 | Electric shaver | Wei Wang, Kotaro Yanagi | 2019-03-05 |
| 9833914 | Hair clipper | Hitoshi Ogawa | 2017-12-05 |