It's a new location! The place was used as a LCD factory; it's the same location of the Braun Tube Workshop from Steins;Gate.
The shop is on the first floor of Kohiyama building (小桧山ビル) next to Furukawa building (古川ビル).
Please send a message when you visit the shop: firstname.lastname@example.org
Opening hours: Monday to Saturday, 10am-6pm