http://lovepentax.blogspot.com/2014/05/pentax-09-telephoto-prime-lens.html
All Q lenses are designed for 1/1.7" sensors for their image circle, of course, which seems to be the maximum size of a sensor that can be put into any Q body.
Speaking of lens patents, RP has yet got another new lens patent of an ultra-wide lens used with 43 sensors, but what 43 camera and system they have? So, this is mysterious:
http://egami.blog.so-net.ne.jp/2014-08-10
N.B. All the original links above are in Japanese.