How to get to KEK from Narita Station and Tsukuba Center
http://www.kek.jp/intra-e/access/
From Narita Airpaort There are Airport Liner NATT's to Tsukuba Center
From Narita International Airport
TAXI:
The simplest yet most expensive way to come to KEK from Narita Airport is to take a taxi. It would cost you approximately 18,000 yen. Please note that KEK is known to locals as "Koh-eh-nel-ghi ken-cue-kikoh" in Tsukuba city and NOT as "KEK". It will take approximately an hour and a half.
BUS:
You may take an airport bus called "Airport Liner - NATT'S" to Tsukuba Center Bus terminal which is approximately 10 km south of KEK. The bus stop is located right outside of Narita Airport terminal. Tickets from Narita Airport to Tsukuba-center bus terminal are available at the Keisei Bus ticket counter located in the arrival lobby. The fare is 2,540 yen for an adult, and 1,270 yen for a child. Bus stop number is #8 at Terminal-1, and #10 at Terminal-2, as of Jun 2006. Check the latest information at the ticket counter before you go outside of the lobby. The bus is bound for "Tsuchiura Station" .
The bus leaves Narita Terminal #2 at 7:40, 9:05 10:35 12:50 14:30 16:15, 17:20 18:45 20:10.
For return to Narita, NATT'S ticket can be purchased not only at Tsukuba Center Bus Terminal but also at KEK Grocery.)
Alternatively you can take Keisei Express train Skyliner to Nippori then take JR train to
Kitasenjyu, then take Tsukuba express (TX) to Tsukuba Station
From Tsukuba station to KEK
There are frequent bus from Tsukuba center
http://rso.kek.jp/transportation/KEK_Center.pdf
bus terminal is No3 (北部シャトル) and No5 (つくばテクノパーク大穂 or 下妻行き)
When you arrive KEK on 13, 14, 15 please comes to Kenkyu-Honkan building 2nd floor.(Nojiri #209)