Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784770 | Method for producing methane gas | — | 1988-11-15 |
| 4767070 | Grinder for use in grinding apparatus | Masaaki Nagao | 1988-08-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784770 | Method for producing methane gas | — | 1988-11-15 |
| 4767070 | Grinder for use in grinding apparatus | Masaaki Nagao | 1988-08-30 |