YOKOTA YAC-50
YOKOTA YAC-50D
YOKOTA YBD-2X
YOKOTA YC-20
YOKOTA YD-3(3A)
YOKOTA YD-4(4A)
YOKOTA YD-4.5LAZ, 4.5LBZ
YOKOTA YD-4.5PZK, 4.5PBZK
YOKOTA YD-4.5SZ
YOKOTA YD-400SC / 400SCA / 400SCB
YOKOTA YD-40PZ, 40PBZ
YOKOTA YD-500SCA