Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8349752 | Plate brick and production method therefor | Yasuaki Shin, Kazuo Ito, Michihiko Ichimaru, Masamichi Asai | 2013-01-08 |
| 5730892 | Recycled slide gate plate | Shigeki Niwa, Etsuhiro Hasebe, Kazuo Itoh, Toshihiro Indoh, Kohji Saitoh +2 more | 1998-03-24 |