Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730810 | Non-oriented electromagnetic steel sheet with low iron loss after stress relief annealing, and core of motor or transformer | Keiji Sato, Takashi Obara | 1998-03-24 |
| 5676770 | Low leakage flux, non-oriented electromagnetic steel sheet, and core and compact transformer using the same | Keiji Sato, Kouji Yano, Masaki Kawano, Takashi Obara | 1997-10-14 |
| 5676771 | Non-oriented silicon steel sheet and method | Koji Yano, Atsuhito Honda, Takashi Obara | 1997-10-14 |
| 5639315 | Process for producing non-oriented electromagnetic steel strip capable of retaining uniform magnetic quality in a product coil | Keiji Sato, Takashi Obara | 1997-06-17 |
| 5637157 | Method for making non-oriented magnetic steel sheet | Atsushi Ogino, Keiji Sato | 1997-06-10 |