Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881987 | Process for direct softening heat treatment of rolled wire rods | Susumu Kanbara, Kenji Aihara, Masato Tomiku, Yoshio Kawashima, Tadashi Sawada +1 more | 1989-11-21 |
| 4834345 | Process and apparatus for direct softening heat treatment of rolled wire rods | Susumu Kanbara, Kenji Aihara, Masato Tomiku, Yoshio Kawashima, Tadashi Sawada +1 more | 1989-05-30 |