Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5394721 | Method of producing permalloy cores | Tsunehiro Shimizu, Hidehiko Sumitomo, Kunihide Takashima, Akira Amemura, Osamu Tanaka | 1995-03-07 |
| 5286315 | Process for preparing rollable metal sheet from quenched solidified thin cast sheet as starting material | Isao Iwanaga, Kenichi Miyazawa, Toshiaki Mizoguchi, Hidehiko Sumitomo | 1994-02-15 |
| 5102477 | Method of manufacturing high permeability Fe-Ni system alloy | Tsunehiro Shimizu, Hidehiko Sumitomo | 1992-04-07 |
| 5066343 | Process for preparation of thin grain oriented electrical steel sheet having superior iron loss and high flux density | Shozaburo Nakashima, Isao Iwanaga | 1991-11-19 |
| 5051138 | Method of producing grain oriented electrical steel sheet having high magnetic flux | Isao Iwanaga | 1991-09-24 |
| 5049204 | Process for producing a grain-oriented electrical steel sheet by means of rapid quench-solidification process | Isao Iwanaga, Kenichi Miyazawa, Toshiaki Mizoguchi | 1991-09-17 |
| 4888066 | Method for producing grain-oriented electrical steel sheet with very high magnetic flux density | Yasunari Yoshitomi, Takeo Nagashima, Kenichi Yakashiro | 1989-12-19 |
| 4824493 | Process for producing a grain-oriented electrical steel sheet having improved magnetic properties | Yasunari Yoshitomi | 1989-04-25 |
| 4692193 | Process for producing a grain-oriented electrical steel sheet having a low watt loss | Yasunari Yoshitomi, Katsuro Kuroki | 1987-09-08 |
| 4595426 | Grain-oriented silicon steel sheet and process for producing the same | Yasunari Yoshitomi, Katsuro Kuroki | 1986-06-17 |
| 4318758 | Method for producing a grain-oriented magnetic steel sheet having good magnetic properties | Katsuro Kuroki, Takashi Sato | 1982-03-09 |
| 4268326 | Process for producing grain oriented electrical silicon steel sheet | Osamu Tanaka | 1981-05-19 |