Inventor
HIRAKAWA HARUO
JP3 patents
Patents
3 patentsUS5263894ANov 23, 1993
Methods and apparatus for ventilating carriages
HITACHI LTD14 citations69
US5137490AAug 11, 1992
Ventilating equipment for railway rolling stock and operating method thereof
HITACHI LTD13 citations68
US6638036B1Oct 28, 2003
Method of manufacturing ventilating device and the ventilating device
HITACHI LTD4 citations57