Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142456 | Method and apparatus for dissolving and mixing gas and liquid | Masakazu Kashiwa, Masaaki Nakayama | 2000-11-07 |
| 5514267 | Apparatus for dissolving a gas into and mixing the same with a liquid | Kimio Hirasawa, Tokio Hori, Masakazu Kashiwa, Takayuki Kinoshita | 1996-05-07 |