Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4723762 | Apparatus for sealing the skirt of a converter waste gas recovery system | Masao Kimoto, Mazumi Nishikawa, Nobuyuki Fujikura | 1988-02-09 |
| 4688772 | Apparatus for sealing the skirt of a converter waste gas recovery system | Hiroshi Narita, Yukinori Shigeyama, Mazumi Nishikawa | 1987-08-25 |
| 4669706 | Method of operation of exhaust-gas treatment system of sealed-type converter under abnormal conditions | Toru Yoshida, Noriaki Suga | 1987-06-02 |