Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5240783 | Steel plate for the outside of automobile bodies electroplated with a zinc alloy and a manufacturing method therefor | Yoshihiko Hoboh, Tadashi Nonaka | 1993-08-31 |
| 5209988 | Steel plate for the outside of automobile bodies electroplated with a zinc alloy and a manufacturing method therefor | Yoshihiko Hoboh, Tadashi Nonaka | 1993-05-11 |
| 4659631 | Corrosion resistant duplex plated sheet steel | Yoshihiko Hoboh, Hiroshi Ohishi, Ryoichi Noumi, Shigeru Wakano | 1987-04-21 |
| 4490438 | Steel sheet with multilayer electroplating and method of producing same | Tetsuaki Tsuda, Atsuyoshi Shibuya | 1984-12-25 |
| 4313802 | Method of plating steel strip with nickel-zinc alloy | Atsuyoshi Shibuya | 1982-02-02 |
| 4249999 | Electrolytic zinc-nickel alloy plating | Tetsuaki Tsuda | 1981-02-10 |