Hitachi
Japan
6
2007-07-12
The entities that hold a legal rights for patent applications filed by inventor Watanabe Dai:
Dai Watanabe from Hitachi, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
Signaling system
#2 | 2006-08-31Signaling system
#3 | 2006-08-29Signal safety method, signal safety apparatus and signal safety system
#4 | 2005-12-22Train position detection system
#5 | 2005-06-23Signaling safety system
#6 | 2005-01-06Automatic train stop system
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