Rion Co., Ltd.

Rion Co., Ltd. was established in 1944 under the name Kobayashi Riken Seisakusho Co., Ltd., for the purpose of commercializing research results from the Kobayashi Institute of Physical Research, a private research institute for acoustics and physics. It began manufacturing Japan's first crystal elements for acoustic equipment and their applied products, and later released Japan's first mass-produced hearing aid, known by the name Rionet. In 1960 the company changed its name to Rion Co., Ltd. Its product fields have expanded to include medical examination equipment for otolaryngology such as audiometers, acoustic and vibration measuring instruments such as sound level meters and vibration meters, particle counters for cleanliness control, and seismometer systems for disaster prevention and control.

Rion Co., Ltd. was established in 1944 under the name Kobayashi Riken Seisakusho Co., Ltd., for the purpose of commercializing research results from the Kobayashi Institute of Physical Research, a private research institute for acoustics and physics. It began manufacturing Japan's first crystal elements for acoustic equipment and their applied products. It later released Japan's first mass-produced hearing aid, which became known by the name Rionet. In 1960 the company changed its name to Rion Co., Ltd., derived from the "ri" of physics (理学) and the "on" of acoustics (音響). Its product fields expanded to include medical examination equipment for otolaryngology such as audiometers, acoustic and vibration measuring instruments such as sound level meters and vibration meters, particle counters essential for cleanliness control in semiconductor, pharmaceutical, and precision industries, and seismometer systems for disaster prevention and control.

Product categories. Hearing aids (Rionet) · Audiometers · Evoked response testing devices · Equilibrium function testing devices · Hearing test rooms · Sound level meters · Vibration meters · Seismometers · Airborne/liquid-borne particle counters

1. 1リオン株式会社rion.co.jp
2. 2リオン株式会社｜企業情報：沿革と歴史rion.co.jp
3. 3リオン株式会社｜技術革新の歩みrion.co.jp
4. 4リオン株式会社｜企業情報rion.co.jp