Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827755 | High-toughness and high-strength ferritic steel and method of producing the same | Masami Taguchi, Ryo Ishibashi, Hidehiko Sumitomo, Hiroki Masumoto, Masakuni Fujikura | 2004-12-07 |
| 6767416 | Corrosion resistant, high strength alloy and a method for manufacturing the same | Ryo Ishibashi | 2004-07-27 |
| 6715665 | Friction stir welding method and apparatus, and welded structure | Satoshi Hirano, Hisanori Okamura, Kazutaka Okamoto, Kinya Aota, Tomio Odakura +1 more | 2004-04-06 |