Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338141 | Formation of zinc phosphate coating on metallic surface | Takashi Senzaki, Kiyotada Yasuhara, Masashi Takahashi | 1982-07-06 |
| 4311535 | Composition for forming zinc phosphate coating over metal surface | Kiyotada Yasuhara, Masashi Takahashi, Takashi Senzaki | 1982-01-19 |