Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4482396 | Method for making pitting resistant cast iron product | Yukio Yamamoto | 1984-11-13 |
| 4450019 | Ductile cast iron | Kazuo Satou | 1984-05-22 |
MY
Masashi Yoritaka
Toyo Kogyo Co.: 1 patents #64 of 216Top 30%
Overall (All Time): #2,358,146 of 4,157,543Top 60%
2
Patents All Time