Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8889062 | Carbonaceous refractory and method of production of same and also blast furnace bottom or side walls | Hiroyuki Inoue, Michio Nitta, Taijiro Matsui, Tsutomu Wakasa, Toru Mochida | 2014-11-18 |
| 6875716 | Carbonaceous refractory and method for preparing the same | Akio Ishii, Hitoshi Nakamura, Michio Nitta, Tsutomu Wakasa, Hirofumi Mikami | 2005-04-05 |