Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187147 | Work machine | Hiroaki Kojima, Masashi Kai, Jun Yamamoto | 2021-11-30 |
| 11091399 | Honeycomb structure | Akifumi Kawakami, Takashi Kinoshita, Yuji Sasaki | 2021-08-17 |
| 11092055 | Honeycomb structure | Akifumi Kawakami, Yasuyuki Furuta | 2021-08-17 |
| 10974186 | Ceramic porous body and dust collecting filter | Rui Horimoto, Akifumi Kawakami, Yuki Jin, Hiroaki Noguchi | 2021-04-13 |
| 10882796 | Ceramic porous body and method for producing the same, and dust collecting filter | Hiroaki Noguchi, Shuichi Ichikawa, Akifumi Kawakami | 2021-01-05 |