Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844737 | Method for operating a blast furnance by blowing pulverized coal | Yotaro Oono, Hiroshi Saito, Takehiko Miyamoto, Kazumasa Wakimoto, Masahiro Matsuura | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844737 | Method for operating a blast furnance by blowing pulverized coal | Yotaro Oono, Hiroshi Saito, Takehiko Miyamoto, Kazumasa Wakimoto, Masahiro Matsuura | 1989-07-04 |