Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6793710 | Method for blowing oxygen in converter and top-blown lance for blowing oxygen | Ikuhiro Sumi, Yoshiteru Kikuchi, Ryo Kawabata, Atsushi Watanabe, Satoshi Kohira | 2004-09-21 |
| 6316106 | Filler sand for a ladle tap hole valve | Hideto Takasugi, Manabu Tano, Takeshi Ishii, Akira Shirayama, Hirohisa Nakashima | 2001-11-13 |
| 4645560 | Liquid encapsulation method for growing single semiconductor crystals | Kazuhisa Matsumoto, Hiroshi Morishita, Shintaro Miyazawa | 1987-02-24 |