Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11885515 | Air conditioning system to calculate indoor air quality index to control air ventilation | Yoshifumi Watabe, Hirofumi Kubota | 2024-01-30 |
| 11199493 | Functional water concentration sensor, and calculation method | Yoshifumi Watabe, Toru Baba | 2021-12-14 |