Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811619 | Method of manufacturing grain-oriented electrical steel sheets | Yasuyuki Hayakawa, Hideo Yamagami, Seiji Okabe, Takeshi Imamura, Mitsumasa Kurosawa | 2004-11-02 |
| 6758915 | Grain oriented electromagnetic steel sheet exhibiting extremely small watt loss and method for producing the same | Mineo Muraki, Hiroi Yamaguchi, Mitsumasa Kurosawa, Michiro Komatsubara | 2004-07-06 |
| 6676771 | Method of manufacturing grain-oriented electrical steel sheet | Tetsuo Toge, Yasuyuki Hayakawa, Mitsumasa Kurosawa, Michiro Komatsubara | 2004-01-13 |