Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025870 | Method for analyzing the oxygen concentration of a gas | Akira Makihara, Ken Ohmae | 2006-04-11 |
| 6024922 | Method of controlling an oxygen analyzer of the Hersch galvanic type | Yoshiyasu Tanaka | 2000-02-15 |
| 5547450 | Hearth roller with suppressed heat crown | Kazumi Isaka, Masaaki Mizuguchi, Yoshimitsu Oshima, Osamu Takatsu | 1996-08-20 |
| 4960568 | Oxygen analyzer | Akira Makihara | 1990-10-02 |
| 4860416 | Variable-crown roll | Takeshi Masui, Atsushi Tomizawa, Eiji Hirooka | 1989-08-29 |
| 4344801 | Heavy thick high-strength casting having improved weldability and impact properties | Tatsuro Kunitake, Hiroo Ohtani, Seiichi Watanabe, Toshiji Takigawa | 1982-08-17 |