Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812169 | Process for producing a fire-resistant, light-weight construction material | Yasuo Arai, Shigeki Aoki, Satoru Ando | 1989-03-14 |
| 4622071 | Process for producing a hardened product of coal ash | Satoru Ando, Masamitsu Kiso | 1986-11-11 |
| 4586958 | Process for producing a fire-resistant, light-weight construction board | Yasuo Arai, Shigeki Aoki, Satoru Ando | 1986-05-06 |