Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692953 | Portable air-borne bacteria sampler | Naoki Sugita, Yutaka Hatta, Takeshi Yamada | 2004-02-17 |
| 6565638 | Portable air-borne bacteria sampler | Naoki Sugita, Yutaka Hatta, Takeshi Yamada | 2003-05-20 |