Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993467 | Apparatus for removing matte-sticking and method for using the apparatus | Masahiro Wakayama, Akira Yamashita | 2011-08-09 |
| 7871559 | Inspection hole structure for flash-smelting furnace | Masakazu Ohno, Kenji Miyamoto, Masahiro Wakayama | 2011-01-18 |