Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6329630 | Process of cladding by welding | Akio Sato, Minoru Kawasaki | 2001-12-11 |
| 5552110 | Heat resistant magnesium alloy | Hideki Iba, Tadashi Takeuchi, Yasuyuki Suzuki | 1996-09-03 |
| 5336466 | Heat resistant magnesium alloy | Hideki Iba | 1994-08-09 |
| 5009843 | Spring steel having good durability and sag-resistance | Atsushi Sugimoto, Osamu Nakano, Shigeru Yasuda, Toshio Ozone, Makoto Kawagoe | 1991-04-23 |