Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976644 | Method of production of grain-oriented electrical steel sheet with high magnetic flux density | Yoshiyuki Ushigami, Norikazu Fujii, Takeshi Kimura, Shuichi Nakamura, Koji Yamasaki | 2011-07-12 |
| 5840131 | Process for producing grain-oriented electrical steel sheet having excellent glass film and magnetic properties | Kenichi Yakashiro, Hotaka Honma, Akira Sakaida, Tomoji Kumano, Koji Yamasaki +2 more | 1998-11-24 |
| 5685920 | Annealing separator having excellent reactivity for grain-oriented electrical steel sheet and method of use the same | Osamu Tanaka, Tsuyoshi Hamaya, Tsutomu Haratani, Tomoji Kumano, Koji Yamasaki +3 more | 1997-11-11 |
| 5512110 | Process for production of grain oriented electrical steel sheet having excellent magnetic properties | Yasunari Yoshitomi, Katsuro Kuroki, Yukio Matsuo, Hiroaki Masui, Yoshio Nakamura +3 more | 1996-04-30 |
| 5507883 | Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for production the same | Osamu Tanaka, Hiroaki Masui, Hotaka Honma, Katsuro Kuroki, Tsutomu Haratani +2 more | 1996-04-16 |
| 5472521 | Production method of grain oriented electrical steel sheet having excellent magnetic characteristics | Yasunari Yoshitomi, Yoichi Mishima, Koji Yamasaki | 1995-12-05 |
| 5266129 | Process for production of oriented electrical steel sheet having excellent magnetic properties | Masayoshi Minakuchi, Yasumitsu Kondo | 1993-11-30 |