company was founded in 1944 originally for developing and marketing
products based on scientific work carried out at Kobayashi Institute of
Physical Research. "Studying acoustics for serving the well-being of
life" has always been the motto representing their managerial
While the major products at the inception were related to phonograph for
the most part, during the past 59 years its range has grown to cover the
following four main fields: audiological instruments such as hearing
aids, diagnostic medical instruments (Audiometers) primarily for otorhinolaryngology, sound and vibration measuring
instruments including seismometers, and particle counters for monitoring
particle contamination in air and liquid.
As of now, RIONs hearing aids continue to be the largest selling of it's
kind in Japan and also exported to more than 60 countries overseas.
Nichi-In is proud to be the sole importers and distributors for the
Hearing aids and Audiometers of RION.