Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742634 | Magnetic brake system and elevator trouble detection system | Yasushi Watanabe, Hiroshi Kiyosugi, Yuki Ishida, Toshiaki Matsuo, Takashi Sekiya | 2004-06-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742634 | Magnetic brake system and elevator trouble detection system | Yasushi Watanabe, Hiroshi Kiyosugi, Yuki Ishida, Toshiaki Matsuo, Takashi Sekiya | 2004-06-01 |