Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326819 | Water absorbent polymer keeping absorbed water therein in the form of independent grains | Chuzo Kato | 1994-07-05 |
| 5164428 | Method for the production of fine grain ice and dry clathrate water for manufacturing of concrete/mortar, a method for the production of concrete/mortar by using fine grain ice or dry clathrate water and concrete/mortar products manufactured thereby | Tadashi Okamoto, Toru Sato, Chuzo Kato | 1992-11-17 |
| 5092933 | Method for the production of concrete/mortar by using dry clathrate water and concrete/mortar products produced thereby | Tadashi Okamoto, Toru Sato, Chuzo Kato | 1992-03-03 |