Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332428 | Impregnating waterproof composition | Hiroshi Yoshioka, Akio Furihata, Yasushi Nakaida | 1994-07-26 |
| 5319049 | Impregnating waterproofing composition | Hiroshi Yoshioka | 1994-06-07 |
| 5306341 | Aqueous paint additive and aqueous paint composition | Shoji Ichinohe | 1994-04-26 |