Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5035919 | Repairing material of a brick and a method of repairing a brick | Toshio Kawamura, Masamichi Asai, Hiroshi Yamada, Kenichi Mukoyama, Akira Takahashi +1 more | 1991-07-30 |
| 4970180 | Repairing material of a brick | Toshio Kawamura, Masamichi Asai, Hiroshi Yamada, Kenichi Mukoyama, Akira Takahashi +1 more | 1990-11-13 |