Not really. Japan's "sunlight laws" make it really hard to go above around three stories or so, meaning that nearly all of Tokyo's skyscrapers are concentrated in a few hot spots with commercial zoning (Shinjuku, Marunouchi) plus a few mega-developments like Roppongi Hills where the developer could pull enough strings to buy a large chunk of land and bulldoze their way to an exception.
Of course, compared to Silicon Valley, even the suburbs of Tokyo are indeed densely packed -- but then, Tokyo also crams in something on the order of 7x more people into the same area.
Of course, compared to Silicon Valley, even the suburbs of Tokyo are indeed densely packed -- but then, Tokyo also crams in something on the order of 7x more people into the same area.