Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834845 | Preparation of Zn-Ni alloy plated steel strip | Ryoichi Muko, Kazuo Mochizuki, Toshio Ichida, Shigeru Kobayashi | 1989-05-30 |
| 4804444 | Method of producing a both-side electrogalvanized steel strip in a chloride bath | Akira Matsuda | 1989-02-14 |
| 4804587 | Chromate-treated zinc-plated steel strip and method for making | Yuko Takeuchi, Yuki Nakahara, Shinobu Okano | 1989-02-14 |