Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6168711 | Water supply and drainage type microorganic deodorizing system | Ryouzo Matsumoto | 2001-01-02 |
| 6069004 | Circulatory microorganic deodorizing system | Ryouzo Matsumoto | 2000-05-30 |
| 5569605 | Organic waste disposal system | Kinichi Kinoshita, Yosihito Takakuwa, Eiji Fukui, Tadashi Kamiyanagita | 1996-10-29 |