Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139973 | Method for forming wear-resistant layer and iron-based material, on which wear-resistant layer is applied | Yutaka Okabayashi, Masatake Higashi | 2000-10-31 |
| 4966634 | Composition of the surface treatment for metal and the treatment method | Kenshi Saeki, Yoshikazu Shikaze, Mamoru Sugaya | 1990-10-30 |
| 4749418 | Chromate coating of zinc surfaces | Kenshi Saeki, Kazuyuki Ohyama | 1988-06-07 |