Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11980335 | Rechargeable cleaner | Tadahiko Kobayakawa, Takuya Umemura, Toru Yamada, Mamoru Sakai | 2024-05-14 |
| 11925307 | Rechargeable cleaner having body controller | Tadahiko Kobayakawa, Takuya Umemura, Toru Yamada, Mamoru Sakai | 2024-03-12 |