Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4368060 | Gas sparging method | Hiroshi Yanagiako, Toshio Kanai, Yoshio Kogawa, Michihiro Yoshida, Zenji Mashino +2 more | 1983-01-11 |
| 4229417 | Gas-liquid contacting apparatus | Toshio Kanai, Hiroshi Yanagioka, Hideo Idemura, Hiroshi Sugiyama, Yoshio Kogawa +2 more | 1980-10-21 |