Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5809702 | Surface layer ground establishment block, surface layer ground using the same and method for utilizing the same | Tadashi Matsuura, Masakazu Nagase, Kouichi Ushiroda, Akinori Tajiri, Sakae Ebata +2 more | 1998-09-22 |
| 5692343 | Surface layer ground establishment block, surface layer ground using the same and method for utilizing the same | Tadashi Matsuura, Masakazu Nagase, Kouichi Ushiroda, Akinori Tajiri, Sakae Ebata +2 more | 1997-12-02 |