Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10273672 | Flush toilet | Ryoko Ishimaru, Kenichi Nakamura, Shoko Imaizumi | 2019-04-30 |
| 10174489 | Flush toilet apparatus | Ryoko Ishimaru, Hidekazu Kitaura | 2019-01-08 |
| 10174490 | Flush toilet | Ryoko Ishimaru, Kenichi Nakamura, Shoko Imaizumi | 2019-01-08 |