Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10309546 | Electrically operated valve | Takao Harada, Takenori Nobuki | 2019-06-04 |
| 9897232 | Motor-driven valve | Takao Harada, Teppei Asano | 2018-02-20 |
| 8851448 | Motor-operated valve | Takao Harada, Tatsuya Yoshida | 2014-10-07 |