Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5447984 | Curable polymer mortar or concrete compositions | Katsunori Demura, Hirokazu Matsueda, Tatsuhiko Ozaki, Atsushi Kodama | 1995-09-05 |
| 4759988 | Grain for construction material | Tadashi Yamamoto, Seishi Suzuki | 1988-07-26 |