Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845610 | Refractory protective blocks and protective wall structure of boiler using same | Tokuaki Hatta, Hiromi Nakashima, Shigeru Imamura, Arito Mizobe, Shigeki Ishimatsu | 1998-12-08 |