Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5156791 | Depositing method of wall concrete | Kazuyuki Nakajima, Hisashi Maeda, Tatsuya Ohtsu, Kazuhiro Ogasawara, Tetsuya Itoh | 1992-10-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5156791 | Depositing method of wall concrete | Kazuyuki Nakajima, Hisashi Maeda, Tatsuya Ohtsu, Kazuhiro Ogasawara, Tetsuya Itoh | 1992-10-20 |