Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470244 | Train detection system | Kenji Oguma, Korefumi Tashiro, Michio Fujiwara, Shinya Tanifuji | 2002-10-22 |
| 6446761 | Elevator system having wireless transmitting/receiving units | Nobuhisa Motoyama, Hiromi Inaba, Yoshinori Ohkura, Kenichi Yamashita | 2002-09-10 |
| 6374165 | Railway information transmission method and system | Kenji Oguma, Korefumi Tashiro, Michio Fujiwara, Shinya Tanifuji | 2002-04-16 |