Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580458 | Method for waste water treatment using calcium carbonate mineral and microorganisms in combination | Kazuyuki Yamasaki, Yoshihiro Hamaguchi, Shunji Hosoda, Kazuyuki Sakata, Takashi Imai +6 more | 1996-12-03 |
| 5480537 | Apparatus for waste water treatment using calcium carbonate mineral and microorganisms in combination | Kazuyuki Yamasaki, Yoshihiro Hamaguchi, Shunji Hosoda, Kazuyuki Sakata, Takashi Imai +6 more | 1996-01-02 |