| 1944 |
Established Kobayashi-Riken Seisakusho Ltd.,
and started the manufacture and sale of sound detector
and their parts for military purpose.
At the ending of the war, converted the business line to
the manufacture and sale of civil acoustic equipment.
|
| 1948 |
Developed the first mass-produced Hearing Aid in Japan and started its
manufacture and sale
|
| 1952 |
Developed Audiometer and started its manufacture and sale.
|
| 1955 |
Developed Sound Level Meter and started its manufacture
and sale.
|
| 1960 |
Established Rion Metal Engineering Co., Ltd. (currently
a consolidated subsidiary)
|
| 1960 |
Altered the corporate name to Rion Co., Ltd.
|
| 1965 |
Developed Vibration Meter and started its manufacture and
sale
|
| 1969 |
Established Tohoku Rion Co., Ltd. (currently a consolidated
subsidiary)
|
| 1970 |
Acquired equities of Komiyadenki Co., Ltd. (currently a
consolidated subsidiary and renamed to kyushu Rion Co.,
Ltd)
|
| 1977 |
Developed Light Scattering Particle Counters and started
its manufacuture and sale
|
| 1979 |
Established Rion Electronic Industries Co., Ltd. (Taiwan,
R.O.C.)
(currently an equity-method affiliate company)
|
| 1981 |
Developed Seismometer and started its manufacture and sale.
|
| 1983 |
Succeeded in the research and development of Artificial
Middle Ear Implant by the contract given by Agency of Industrial
Science and Technology of MITI.
|
| 1991 |
Developed Hearing Aid utilizing digital signal processing
technology and started its manufacture and sale
|
| 1996 |
Registered at the over-the-counter exchange of Japan Securities
Dealers Association
|
| 1996 |
Established Rion Insurance Ltd., (currently a non-consolidated
subsidiary)
|
| 1997 |
Took over Kokusai Hochouki Co., Ltd. (currently named Kanto
Rion Co., Ltd. a consolidated subsidiary)
|
| 2000 |
Stock listed in the Second Section of the Tokyo Stock Exchange.
|
| 2002 |
Established Rion Service Center Co., Ltd. (currently a
consolidated subsidiary)
|
| 2002 |
Established Rion Techno Co., Ltd. (currently a consolidated
subsidiary)
|
| 2004 |
Japan's first automatic shell making system for custom-made hearing aid.
"yumejikoubou" started production.
|
| 2005 |
World's first custom-made waterproof dijital hearing aid marketed.
|
| 2007 |
Japan's first and Rion-sponsored world deaf surfing championship for "Rionet Cup" held.
|
| 2007 |
Observational equipment for the newly set "Environmental Quality Standard for Aircraft Noise" marketed.
|
| 2010 |
Japan's first handheld OAE Screener maketed. |
| 2011 |
Stock listed in the First Section of the Tokyo Stock Exchange. |
