Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653899 | Method of making a steel pipe by electric resistance heating of opposing edges of a sheet prior to laser welding | Takayuki Odake, Yoshiichi Ishizawa, Yutaka Nagahama | 1997-08-05 |
| 5435858 | Method for TIG welding 1.25 Cr-0.5Mo steel pipe for which preheating and postheating treatments can be effectively omitted | Yukio Nishino, Kozo Teraoka, Motoaki Oyama, Koji Akiyama, Takero Arima | 1995-07-25 |
| 5431748 | Electric-resistance-welded steel pipe with high strength | Tatsuo Maeda, Yoshiichi Ishizawa, Yuji Sugimoto, Mitoshi Morimoto, Tetsuro Sugayoshi +1 more | 1995-07-11 |
| 5350561 | Cr-Mo steel pipe and welding method thereof | Yukio Nishino, Motoaki Oyama, Akiyoshi Matsushita | 1994-09-27 |
| 5348701 | Vibration-damping alloy | Takayuki Ohdake, Toshimichi Ohmori, Takemi Yamada, Tetsuya Sampei | 1994-09-20 |
| 5330706 | Vibration-damping alloy of high strength | Takayuki Ohdake, Toshimichi Ohmori, Takemi Yamada, Tetsuya Sampei | 1994-07-19 |
| 5286309 | Electric-resistance-welded steel pipe with high strength | Tatsuo Maeda, Yoshiichi Ishizawa, Yuji Sugimoto, Mitoshi Morimoto, Tetsuro Sugayoshi +1 more | 1994-02-15 |