EPSG

2443~2460   平面直角座標系 on JDG2000
30161~30178 平面直角座標系 on Tokyo (旧日本測地系)
32651~32655 UTM zone 51N~55N on WGS84
3097~3101 UTM zone 51N~55N on JGD2000
3092~3096 UTM zone 51N~55N on Tokyo (旧日本測地系)
4612  JGD2000
3857  Web Mercator on WGS 84
4326  WGS 84

http://spatialreference.org/

http://blog.godo-tys.jp/2012/11/21/999/

What is EPSG for latlon?

http://epsg.io/54001