Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591945 | Self propelled elevator | Hiroshi Kigawa, Takenobu Honda | 2003-07-15 |
| 6591959 | Escalator with high speed inclinded section | Manabu Ogura, Yasumasa Haruta, Tatsuya Yoshikawa, Shinji Nagaya, Joichi Nakamura | 2003-07-15 |
| 6588573 | Escalator with high speed inclined section | Manabu Ogura, Yasumasa Haruta, Tatsuya Yoshikawa, Shinji Nagaya, Joichi Nakamura | 2003-07-08 |
| 6554107 | Elevator system | Hiroshi Araki | 2003-04-29 |