Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366567 | Method for chromating treatment of zinc coated steel | Arata Suda, Takayuki Aoki, Mitsuyuki Koga | 1994-11-22 |
| 5308709 | Process for forming composite film on aluminum or aluminum alloy article surface and resulting product | Ryoji Morita, Shigeo Tanaka | 1994-05-03 |