Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8003907 | Operation device and elevator apparatus with operation device | Takeshi Hoshino, Akiko Obata (nee Nakajima), Atsushi Maki, Yukari YAMAMOTO, Yujin Tsukada +1 more | 2011-08-23 |