Immersion Corp stated that such technology could be used to simulate “sensations of pushing, pulling, grasping, and pulsing”, while Sony more vaguely simply stated that it “enhances the sense of presence and immersion.”
Immersion Corp doesn’t actually manufacture the hardware for haptic feedback. The company certifies suitable hardware and licenses its software and more than 3500 issued or pending patents to companies wanting to add haptics to their products.
See the full story here: https://uploadvr.com/sony-haptic-patents-acquisition/