Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857488 | Casting nozzle | Yoshiro Aiba, Takashi Watanabe, Kazuhide Kawai | 1989-08-15 |
| 4640336 | Refractory for continuous casting | Toshiyuki Hirao, Kenji Sugiura, Satoshi Kuroki, Sei Hiraki, Takao Suzuki +1 more | 1987-02-03 |
| 4632283 | Molten metal discharging device | Masuo Sugie, Takashi Watanabe, Takumi Nishio, Toshio Kawamura, Tsutomu Nagahata +1 more | 1986-12-30 |
| 4583721 | Molten metal discharging device | Masuo Sugie, Takashi Watanabe, Takumi Nishio, Toshio Kawamura, Tsutomu Nagahata +1 more | 1986-04-22 |