Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6858095 | Thick grain-oriented electrical steel sheet exhibiting excellent magnetic properties | Yasunari Yoshitomi, Nobuyuki Takahashi | 2005-02-22 |
| 5961744 | Grain oriented silicon steel sheet having low core loss and method of manufacturing same | Shuichi Yamazaki, Hiroyasu Fujii, Takeo Nagashima, Yoshiyuki Ushigami, Osamu Tanaka +1 more | 1999-10-05 |
| 5565272 | Grain oriented silicon steel sheet having excellent primary film properties | Morio Shiozaki, Nobuyuki Takahashi, Hisashi Kabayashi, Takeo Nagashima, Shuichi Yamazaki +1 more | 1996-10-15 |
| 5512110 | Process for production of grain oriented electrical steel sheet having excellent magnetic properties | Yasunari Yoshitomi, Katsuro Kuroki, Yukio Matsuo, Yoshio Nakamura, Maremizu Ishibashi +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, Hotaka Honma, Katsuro Kuroki, Tsutomu Haratani, Yoichi Mishima +2 more | 1996-04-16 |
| 5421912 | Method of producing non-oriented electrical steel sheet having good magnetic properties | Tomoji Kumano, Takeshi Kubota, Tadashi Nakayama, Yuji Yoshimura | 1995-06-06 |
| 5261972 | Process for producing grain-oriented electrical steel strip having high magnetic flux density | Katsuro Kuroki, Yasunari Yoshitomi, Tsutomu Haratani | 1993-11-16 |
| RE31251 | Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm.sup.2 or higher | Hajime Nakasugi, Hiroshi Tamehiro, Tetuo Takeda, Seiji Eiro | 1983-05-24 |