Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793401 | Method of producing thin steel sheets having an improved processability | Saiji Matsuoka, Takashi Obara, Kozo Tsunoyama, Hideo Abe | 1988-12-27 |
| 4708748 | Method of making cold rolled dual-phase structure steel sheet having an excellent deep drawability | Hideo Suzuki, Takashi Obara, Minoru Nishida, Osamu Hashimoto | 1987-11-24 |
| 4676844 | Production of formable thin steel sheet excellent in ridging resistance | Saiji Matsuoka, Takashi Obara, Kozo Tsunoyama, Toshio Irie | 1987-06-30 |
| 4615749 | Cold rolled dual-phase structure steel sheet having an excellent deep drawability and a method of manufacturing the same | Hideo Suzuki, Takashi Obara, Minoru Nishida, Osamu Hashimoto | 1986-10-07 |
| 4576656 | Method of producing cold rolled steel sheets for deep drawing | Takashi Obara, Minoru Nishida | 1986-03-18 |
| 4576657 | Process of manufacturing a cold rolled steel sheet having excellent press formability | Osamu Hashimoto, Toshio Irie | 1986-03-18 |