Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876160 | Organic composite-plated steel sheet | Yoshio Shindou, Motoo Kabeya, Fumio Yamazaki | 1989-10-24 |
| 4861441 | Method of making a black surface treated steel sheet | Katushi Saito, Yoshio Shindou, Toshimichi Murata, Fumio Yamazaki | 1989-08-29 |