Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4749408 | Method of bottom blowing operation of a steel making electric furnace | Makoto Watanabe, Tsutomu Kuroda | 1988-06-07 |
| 4735400 | Plug for a refining apparatus | Makoto Watanabe, Hideaki Nishio, Junji Onmyoji, Eiji Yokogi, Hiroaki Shimizu +3 more | 1988-04-05 |
| 4284214 | Method of continuous casting | Tetsuya Yoshiwara, Tatsuo Kobatake | 1981-08-18 |
| 4186792 | Apparatus for monitoring and controlling the level of the molten metal in the mold of a continuous casting machine | Takeo Yamada, Seigo Ando, Yoshio Miyashita, Katsuhiko Murakami, Kiyoshi Mizui | 1980-02-05 |