Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557830 | Packed column having pressure-absorbing mechanism | Hatsuki Onitsuka, Hideo Fukuda | 1985-12-10 |
| 4378993 | Method and apparatus for measuring height level of melting zone in blast furnace | Tsutomu Fukushima, Takeshi Furukawa, Takashi Kobayashi, Takeo Yamada | 1983-04-05 |