Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9114956 | Elevator modification work apparatus | Shigenobu Kawakami, Seiji Okuda | 2015-08-25 |
| 9090435 | Elevator hoisting machine and elevator hoisting machine manufacturing method | Shigenobu Kawakami, Seiji Okuda | 2015-07-28 |
| 6339375 | Image monitoring apparatus and image monitoring method | Nami Hirata, Manabu Hashimoto, Kazuhiko Sumi | 2002-01-15 |