Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7588836 | Phosphate-treated zinc-coated steel sheet | Hiroki Nakamaru, Chiyoko Tada, Hideo Sasaoka, Chiaki Kato | 2009-09-15 |
| 6322906 | Perforative corrosion resistant galvanized steel sheet | Hisatada Nakakoji, Kyoko Hamahara, Kazuo Mochizuki | 2001-11-27 |