Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314170 | Steel heating furnace | Takeshi Tada, Toshikazu Akiyama, Masao Kawamoto | 1994-05-24 |
| 5304059 | Burner device of regenerative and alternate combustion type | Masao Kawamoto | 1994-04-19 |