At Narita station, take the "JR Sobu Line" except "Narita Express (N'EX) (you need special fare)" to Tokyo station.

When you use JR Sobu Line, buy a ticket to Oimachi (1450 JPY=approx. 15 USD). It takes approximately 80 min from Narita station to Tokyo station.

Then take the "JR Keihin-Tohoku Line" bound for south from Tokyo to Oimachi (via Shinagawa).

Take the "Skyliner(1900 JPY=approx. 19 USD)" or "Limited express(1000 JPY=approx. 10 USD)" to Nippori station (One station before the final stop "Ueno" because Ueno station is not convenient) and transfer to the JR Keihin-Tohoku Line.

Buy a ticket for JR Line to Oimachi (210 JPY=approx. 2 USD), or use fare adjustment machine. Then take the "Keihin-Tohoku Line" bound for south from Nippori to Oimachi.

At Oimachi station, use north exit, and transfer to "Tokyu Oimachi Line" (150 JPY=approx. 1.5 USD).
Then get off at O-okayama station.

You can see Tokyo Institute of Technology from the exit.
The main entrance is easy to find near a curious-shaped building
(http://www.libra.titech.ac.jp/cent/cent-e.html).

Here, see the map of Tokyo Institute of Technology
(http://www.titech.ac.jp/access-and-campusmap/e/o-okayamaO.html).
Ando and Hirokawa Lab. is in room 909, 9th floor, "South Bldg. 3"(No. 32 in the map).
Main entrance is between No. 6 and No. 7 in the map.

Please do not hesitate to call us.

-------- Telephone No. of Ando and Hirokawa Lab. --------
Internatinal phone no.: +81-3-5734-2563
Inside Japan:
From inside Tokyo: 5734-2563
From outside Tokyo (incl. NRT): 03-5734-2563
Local(in Tokyo Institute of Technology): 2563

You can use local phone (free, no charge) at the entrance of
Tokyo Institute of Technology(in No. 6 in the map).
--------------------------------------------------