Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6533074 | Elevator apparatus with rechargeable power supply and discharge control | Shinji Tominaga, Ikuro Suga, Hiroshi Araki, Kazuyuki Kobayashi | 2003-03-18 |
| 6522099 | Elevator apparatus with rechargeable power supply and discharge control | Shinji Tominaga, Ikuro Suga, Hiroshi Araki, Kazuyuki Kobayashi | 2003-02-18 |