Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6316106 | Filler sand for a ladle tap hole valve | Hideto Takasugi, Manabu Tano, Takeshi Ishii, Shinichi Akai, Akira Shirayama | 2001-11-13 |
| 6051514 | Sliding nozzle filler | Jun Ayama, Akira Ohashi, Manabu Tano, Hideto Takasugi, Akira Shirayama | 2000-04-18 |
| 4674101 | Arc-heating type extra-furnace refining apparatus | Kazuhiko Matsuo, Teruyuki Hasegawa, Seigo Kuwano, Ryuji Yamaguchi, Akio Shiwata +5 more | 1987-06-16 |
| 4652308 | Process for refining molten steel | Yoshimi Komatsu, Masafumi Ikeda, Tsuneo Kondo | 1987-03-24 |
| 4652306 | Method of refining molten steel by arc process | Yoshimi Komatsu, Masafumi Ikeda, Tsuneo Kondo | 1987-03-24 |
| 4552587 | Method of operating ladle refining furnace | Yoshimi Komatsu, Masafumi Ikeda, Tsuneo Kondo | 1985-11-12 |
| 4551173 | Method for adjusting composition of molten steel in arc process | Yoshimi Komatsu, Masafumi Ikeda, Tsuneo Kondo | 1985-11-05 |
| 4551174 | Method of refining molten steel by arc process | Yoshimi Komatsu, Masafumi Ikeda, Tsuneo Kondo | 1985-11-05 |