Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8924050 | Railway signalling system and on-board signalling system | Keiichi Katsuta, Keiji Maekawa, Naoki Shibata, Kenji IMAMOTO, Motonari SUZUKI | 2014-12-30 |
| 8548654 | Signaling system | Keiichi Katsuta, Dai Watanabe | 2013-10-01 |
| 7756613 | Signaling system | Keiichi Katsuta, Dai Watanabe, Takashi Yamaguchi | 2010-07-13 |
| 7201350 | Signaling safety system | Dai Watanabe, Masakazu Akiyama | 2007-04-10 |
| 7099754 | Signal safety method, signal safety apparatus and signal safety system | Dai Watanabe, Takatoshi Miyazaki, Kiyoshi Chiba | 2006-08-29 |
| 6732023 | Train control method and apparatus | Dai Watanabe, Yasushi Yokosuka, Kiyoshi Chiba | 2004-05-04 |
| 6416544 | Stent manufacturing method thereof and indwelling method thereof | Akira Ogawa, Kenji Kyo | 2002-07-09 |
| 6049738 | Control model modeling support system and a method therefor | Masahiro Kayama, Jiro Kumayama, Shohei Fukuoka, Masato Yoshida, Yasuo Morooka | 2000-04-11 |
| 5548597 | Failure diagnosis apparatus and a method thereof | Masahiro Kayama, Yasuo Morooka, Masaaki Nakajima | 1996-08-20 |
| 4969890 | Catheter | Takashi Kawabata | 1990-11-13 |