Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358577 | High strength and high toughness martensitic stainless steel and method of manufacturing the same | Rikizo Watanabe, Nobuhito Nakama | 1994-10-25 |
| 5288347 | Method of manufacturing high strength and high toughness stainless steel | Rikizo Watanabe, Nobuhito Nakama | 1994-02-22 |