Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876160 | Organic composite-plated steel sheet | Yoshio Shindou, Takashi Shimazu, Fumio Yamazaki | 1989-10-24 |
| 4812371 | Zn-Al hot-dip galvanized steel sheet having improved resistance against secular peeling of coating | Yoshio Shindou | 1989-03-14 |