Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8349752 | Plate brick and production method therefor | Yasuaki Shin, Kazuo Ito, Michihiko Ichimaru, Tamotsu Wakita | 2013-01-08 |
| 5556568 | Slide gate plate | Shigeki Niwa, Etsuhiro Hasebe, Kazuo Itoh, Toshihiro Indoh | 1996-09-17 |
| 5062554 | Sliding nozzle device | Hiroshi Sakai, Kenzo Hayashi, Kazunori Sakurai, Kazuhiko Watanabe | 1991-11-05 |
| 5035919 | Repairing material of a brick and a method of repairing a brick | Takao Sugino, Toshio Kawamura, Hiroshi Yamada, Kenichi Mukoyama, Akira Takahashi +1 more | 1991-07-30 |
| 4970180 | Repairing material of a brick | Takao Sugino, Toshio Kawamura, Hiroshi Yamada, Kenichi Mukoyama, Akira Takahashi +1 more | 1990-11-13 |