Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6073331 | Method for manufacturing seamless pipe | Tatsuro Katsumura | 2000-06-13 |
| 5778714 | Method for manufacturing seamless pipe | Tatsuro Katsumura, Motoharu Yamazaki, Masahiko Yasukawa | 1998-07-14 |
| 4986341 | Process for making non-oriented high silicon steel sheet | Sadakazu Masuda, Fumio Fujita, Masamoto Kamata, Masahiko Yoshini, Yuji Okami +2 more | 1991-01-22 |
| 4294094 | Method for automatically controlling width of slab during hot rough-rolling thereof | Masaru Okado | 1981-10-13 |