Tomita Technologies has filed a patent suit against Nintendo, alleging that the 3DS's stereoscopic display infringes upon Tomita's patent for "technology relating to displaying stereoscopic images on-screen for viewing with the naked eye, i.e., without utilizing glasses or other devices.," filed in 2003 and granted in 2008.

Nintendo is no stranger to these patent suits, with previous complaints claiming Nintendo infringed upon others' patents with Wii Fit, the GameCube and Classic Controllers, controller ports, and motion controls (Nintendo settled in that case).

We don't claim to be legal experts, but something seems off about this particular case from the outset: the screens are made by Sharp, not Nintendo.