Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231690 | Method of oxidizing inner surface of ferritic stainless pipe | — | 2001-05-15 |
| 5942184 | Stainless steel for high-purity gases | Masahiro Honzi | 1999-08-24 |
| 5830408 | Stainless steel for high-purity gases | Masahiro Honzi | 1998-11-03 |