Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7200470 | Train detection system and a train detection method | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2007-04-03 |
| 7027901 | Transmitter and receiver device for train detection | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2006-04-11 |
| 6829526 | Train detection system and a train detection method cross reference to related application | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2004-12-07 |
| 6604031 | Train detection system and a train detection method | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2003-08-05 |
| 6513131 | Logic circuit having error detection function, redundant resource management method, and fault tolerant system using it | Nobuyasu Kanekawa, Shoji Suzuki, Yoshimichi Sato, Keisuke Bekki, Hiroshi Sato +2 more | 2003-01-28 |
| 6470244 | Train detection system | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2002-10-22 |
| 6374165 | Railway information transmission method and system | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2002-04-16 |
| 6317664 | Train detection system and a train detection method | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2001-11-13 |
| 6230086 | Railway information transmission method and system | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2001-05-08 |
| 6230085 | Train detection system and a train detection method | Kenji Oguma, Atsushi Kawabata, Michio Fujiwara, Shinya Tanifuji | 2001-05-08 |
| 6092217 | Logic circuit having error detection function, redundant resource management method and fault tolerant system using it | Nobuyasu Kanekawa, Shoji Suzuki, Yoshimichi Sato, Keisuke Bekki, Hiroshi Sato +2 more | 2000-07-18 |
| 5805797 | Controller having a fail safe function, automatic train controller and system using the same | Hiroshi Sato, Nobuyasu Kanekawa, Makoto Nohmi | 1998-09-08 |
| 5802266 | Logic circuit having error detection function, redundant resource management method, and fault tolerant system using it | Nobuyasu Kanekawa, Shoji Suzuki, Yoshimichi Sato, Keisuke Bekki, Hiroshi Sato +2 more | 1998-09-01 |
| 5487516 | Train control system | Satoru Murata, Atsushi Kawabata, Shuuichi Miura, Yasuo Morooka, Masakazu Yahiro +2 more | 1996-01-30 |
| 5422965 | Air bag operation device | Keisuke Bekki, Hiroshi Sato, Seiko Suzuki, Masayoshi Suzuki | 1995-06-06 |
| 5346163 | Power supply regulation system for a railway | Naoko Momma, Masahito Ikeda | 1994-09-13 |
| 4651317 | Time division multiplex data transmission system | Kunio Saito, Hiroshi Sato, Takamasa Hori | 1987-03-17 |
| 4618930 | Automatic train control apparatus | Masahiro Ueno, Eiichi Toyota | 1986-10-21 |
| 4596013 | Data transmission network | Kunio Saito, Hiroshi Takenaga, Masahiro Yasunami | 1986-06-17 |
| 4564774 | Binary logic device having input and output alternating signals | Hiroyuki Akiyama | 1986-01-14 |