Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032369 | Method of removing silicon from waste hydrochloric acid pickling solutions for steel stock | Hidenobu Kondo, Masatake Tateno, Yatsuhiro Kawara, Yoshihisa Makino | 1991-07-16 |
| 4846884 | Process for producing cold-bonded iron ore for use in a blast furnace | Minoru Ichidate, Chitose Shiotani, Yohzi Tozawa | 1989-07-11 |