Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5024314 | Escalator system with convertible steps for wheel chair | Haruhiko Nakamura, Masaru Sanada | 1991-06-18 |
| 4809841 | Apparatus for driving a passenger conveyor | — | 1989-03-07 |
| 4805763 | Passenger conveyor guide arrangement | Kazuhiko Sugita | 1989-02-21 |
| 4756398 | Passenger conveyor apparatus | Eiki Watanabe, Shigeo Matsueda | 1988-07-12 |
| 4629052 | Escalator warning system | — | 1986-12-16 |