In the process, co-developed with Shizuoka Prefectural University’s Rieko ONOE, fine particles of about 5 μm are extruded at high frequency from a nozzle using piezoelectric forces, creating a uniform powder by drying at high speed.
https://blog.ricoh.co.jp/RISB/technology/post_218.html
Ricoh establishs new drug granulation based on inkjet technology