Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360202 | Blackening Treating furnace for treating stainless steel strip surface | — | 1994-11-01 |
| 5306354 | Method of blackening treating a stainless steel strip surface | — | 1994-04-26 |
| 5238229 | Burner for generating soot and furnace to deposit soot by using the same | Hitoshi Matsumura, Tetsuo Akiyama | 1993-08-24 |