The train or bus from the Sendai Airport is convenient while going from Narita Airport to Sendai is not particularly efficient. It is therefore recommended that you fly to Sendai Airport if your flight plan allows. Unfortunately, there aren't many flights from Narita to Sendai, while there are quite a few from Chubu International Airport (Nagoya) and Haneda (Tokyo).
From the airport, you can take Airport Bus which will take you
close to the hotels.
Sendai Airport Line will take you to Sendai station, from where the best way to get to your hotel or to the workshop venues is to take a taxi, which is about 1000 yen and 10 minutes.
From the Sendai station, you can take taxi to the Hotels or the Conference venues. It will take about 1000 yen and about 10 min. You can show THIS to the taxi driver. It will take about 25 min on foot from the Sendai station to the Hotels, but if you are carrying luggage then it is recommended to take taxi.
For the public bus services between the hotels and venues, look at THIS.
There is no car park around Multimedia Education and Research Complex in Tohoku University Kawauchi-kita Campus, please take public bus or taxi to the campus.