Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10288287 | Combustion system | Kayo SUZUKI, Yuichi Kumazawa, Takeshi Nishiyama | 2019-05-14 |
| 10274196 | Combustion controlling system | Yuichi Kumazawa, Katsumi Morikawa | 2019-04-30 |
| 10247415 | Combustion controlling device and combustion system | — | 2019-04-02 |
| 10180255 | Combustion controlling device and combustion system | — | 2019-01-15 |
| 10139107 | Combustion controlling system | Yuichi Kumazawa, Katsumi Morikawa | 2018-11-27 |
| 8843219 | Control device | Akira Yamada, Yuuichi Kumazawa, Katsumi Morikawa | 2014-09-23 |