I found this in the campus of Utsunomiya University near Utsunomiya station of JR Tohoku Line. First Japanese characters are Utsunomiya University. Second Japanese characters are TeleCommunication.
The Second Keihan Speed way was opened March 20, 2010. At the country field near the Matsui Junction of this speed way, I found this Vulve cover. You can see the handle through the hole.