Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5141366 | Method of improving ground and apparatus used therefor | Mitsuji Ishida, Tomohiro Sakurada, Takashi Miki, Goro Murai | 1992-08-25 |
| 4795779 | Process for producing inorganic compound-containing urea resin | Shunsuke Tazawa, Kenji Takeuchi, Mitsuaki Abe | 1989-01-03 |
| 4596593 | Urea-formaldehyde condensate-based slow release nitrogen fertilizer and process for producing same | Shunsuke Tazawa, Yuzuru Kawagoe, Seinosuke Ando, Kazuhiko Kon | 1986-06-24 |