Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4495290 | Apparatus for composting | Kanichi Ito, Yoshio Hirayama, Masanori Kodaira, Gorou Iizuka | 1985-01-22 |
| 4462695 | Composting apparatus | Kanichi Ito, Yoshio Hirayama | 1984-07-31 |
| 4410348 | Method for composting | Kanichi Ito, Yoshio Hirayama, Masanori Kodaira, Gorou Iizuka | 1983-10-18 |