Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6832678 | Escalator with high speed inclined section | Takashi Yumura, Joichi Nakamura | 2004-12-21 |
| 6796416 | High-speed escalator for slope | Takashi Yumura, Joichi Nakamura | 2004-09-28 |