Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10287764 | Flush toilet | Takahiro Nakashima, Nobuhiro Hayashi, Haruka Saito, Isami Sakaba | 2019-05-14 |
| 10287767 | Flush toilet | Nobuhiro Hayashi, Takahiro Nakashima, Haruka Saito, Isami Sakaba | 2019-05-14 |
| 10174489 | Flush toilet apparatus | Ryoko Ishimaru, Tatsunari HARASHIMA | 2019-01-08 |