Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7134530 | Elevator system utilizing wireless transmission units to exchange control information between elevator car and elevator control unit | Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Kenichi Yamashita | 2006-11-14 |
| 6976561 | Elevator system having terminals with wireless transmitting/receiving unit | Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Kenichi Yamashita | 2005-12-20 |
| 6728541 | Radio relay system | Masahiro Takahashi, Hideaki Masuko, Shinichi Ueda, Takuji Hamada | 2004-04-27 |
| 6598710 | Elevator system with wireless elevator control transmit/receive unit | Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Kenichi Yamashita | 2003-07-29 |
| 6446761 | Elevator system having wireless transmitting/receiving units | Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Kenichi Yamashita | 2002-09-10 |
| 5724350 | Data transmission method and system for hub-based network | Takuji Hamada, Norihiko Sugimoto, Kinshirou Oonishi, Shunji Inada, Katsuhiko Yoneda | 1998-03-03 |
| 5657327 | Data transmission method and system for hub-based network | Takuji Hamada, Norihiko Sugimoto, Kinshirou Oonishi, Shunji Inada, Katsuhiko Yoneda | 1997-08-12 |
| 5517669 | Cyclic data communication system | Takuji Hamada, Shunji Inada, Shinichiro Yamaguchi, Hiroshi Tomizawa | 1996-05-14 |