Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9709066 | Ventilating fan | Hongjian Yuan, Guangmin Zeng, Yasuhiro Suzuki | 2017-07-18 |
| 9541297 | Heating ventilator for bathroom | Yefan Weng, Hongjian Yuan, Makoto Ishikawa | 2017-01-10 |