Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6702094 | Passenger conveyor device | Yoshinobu Ishikawa | 2004-03-09 |
| 6427823 | Conveyor device | Yoshinobu Ishikawa, Yoshio Ogimura | 2002-08-06 |
| 5353907 | Dual-purpose escalator for wheelchair | Yoshio Ogimura | 1994-10-11 |
| 5330042 | Escalator apparatus | Yoshio Ogimura | 1994-07-19 |