Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730892 | Recycled slide gate plate | Shigeki Niwa, Etsuhiro Hasebe, Kazuo Itoh, Kohji Saitoh, Tamotsu Wakita +2 more | 1998-03-24 |
| 5556568 | Slide gate plate | Shigeki Niwa, Etsuhiro Hasebe, Kazuo Itoh, Masamichi Asai | 1996-09-17 |