Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497380 | Drum winding apparatus | Hiroshi Kigawa, Keigo Fukunaga | 2002-12-24 |
| 6474449 | Elevator and guide device for elevator | Kenji Utsunomiya, Kenichi Okamoto | 2002-11-05 |
| 6345696 | Elevator speed governor | — | 2002-02-12 |