Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733599 | Method for producing grain-oriented silicon steel sheet not having inorganic mineral film | Yoshiyuki Ushigami, Shuichi Nakamura, Kenichi Murakami, Norihiro Yamamoto, Kiyoshi Sawano +1 more | 2004-05-11 |
| 6713187 | Grain-oriented silicon steel sheet excellent in adhesiveness to tension-creating insulating coating films and method for producing the same | Genichi Shigesato, Kenichi Murakami, Yoshiyuki Ushigami, Shuichi Nakamura, Masaaki Sugiyama | 2004-03-30 |