The eight 8-car 10-300 series sets (10-370 to 10-440) are formed as shown below with five motored (M) cars and three trailer (T) cars, and car 1 at the Shinjuku end.

"xx" corresponds to the set number.

Cars 3 and 7 are each fitted with two single-arm pantographs, and car 5 has one.
The eight 8-car 10-300 series sets (10-370 to 10-440) are formed as shown below with five motored (M) cars and three trailer (T) cars, and car 1 at the Shinjuku end.
"xx" corresponds to the set number.
Cars 3 and 7 are each fitted with two single-arm pantographs, and car 5 has one.
Toei 10-300 series