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Founded in 1920, Rinnai & Co. first manufactured and sold pressurized oil stoves. By the late 1920s it had already established itself as a trustworthy manufacturer of gas tabletop stoves, gas ovens, gas heaters, and gas hot-water units.

Rinnai Milestones
1920 Incorporated as Rinnai & Co. by founders; Hidejiro Naito, president and Kenkichi Hayashi, president.
1923 Began sales and exports of gas appliances, including tabletop stoves, ranges, gas oven, hot-water units, to domestic gas utilities.
1938 Manufactured aircraft parts as factory supervised by the army.
1946 Resumption of production of gas oil appliances at Reconstructed Head Office factory
1950 Reorganized as a limited company.
1954 Opened Tokyo office.
1958 Formed technological tie-up with German Schwank GmbH and began production and sales of infrared gas burners, and develop stoves and others.
1960 Opened Asahi Factory.
1961 Opened Fukuoka office.
1963 Opened Sapporo and Sendai offices.
1964 Opened Oguchi Factory. Develop Japan's first-type gas bath-heating units.
1967 Opened Technology Development Center.
1969 Received Japan's first JIS certificates for gas appliances..
1970 Established Rinnai Taiwan Corporation.
1971 Changed name to Rinnai Corporation.
Establish RB Controls Co., Ltd. and Rinnai Australia Pty., Ltd.
1972 Received Ota Award from Japan Gas Association for gas high-speed cooking convection oven.
1973 Established Rinnai (Malaysia) Sdn. Bhd.
1974 Established Rinnai Korea Corporation and Rinnai America Corporation.
1975 Established Rinnai New Zealand Ltd. and Equipamentos NGK-Rinnai Ltda.
1976 Established Rinnai Industries (UK), Ltd.
1977 Established Rinnai New Zealand Ltd.
1979 Listed on the Second Section of the Nagoya Stock Exchange.
Established Rinnai Precision Co., Ltd., and opened Seto Factory.
1981 Established Japan Ceramics Co., Ltd.
1982 Listed on the Second Section of the Tokyo Stock Exchange.
Opened training center in Seto Factory.
1983 Opened Hiroshima office. Listed on First Section of the Tokyo Stock Exchange.
1984 Received Ota Prize from Japan Gas Association for development of a hot-water heating unit equipped with a safety mechanism to prevent incomplete combustion.
1986 Received Excellent Technology Prize from Japan Gas Association as well as the first Chunichi Industrial Technology Award for the development of an ultra-compact hot-water heating unit.
1988 Established P.T. Rinnai Indonesia. Established Hong Kong Representative Office.
1990 Opened Tuskuba Research Center. Establish Rinnai (Thailand) Co Ltd and Noto Tech Co., Ltd.
1991 Established Rinnai Singapore Pte. Ltd
1993 Established Shanghai Rinnai Co., Ltd.
1994 New head office building completed.
1995 Received ISO 9001 certification for all domestic factories.
1996 Established Rinnai Holdings (Pacific) Pte. Ltd. in Singapore
Receive Testing Facility Acceptance from International Approval Services (IAS).
1997 Received ISO 14001 certification for Oguchi Factory and Technology Development Center.
1998 Established Rinnai Vietnam Co., Ltd. and Rinnai Hong Kong Ltd.
1999 Established RG Co., Ltd.
2000 Received Ministry of International Trade and Industry's Energy Conservation Award for its highly efficient condensing-type gas hot-water appliances.
Received ISO 14001 certification for Seto Factory.
2001 Received Technology Prize from Japan Gas Association for its highly efficient condensing-type gas hot-water units.
2003 Received ISO 14001 certification for all domestic factories.
Receive Chairman Prize from Energy Conservation Center for glass-top stoves with internal-flame burner.
2005 Technology Prize from Japan Gas Association for condensing-type dual hot-water/heating units "Eco Jozu".
2006 Established RBS Thermo Technology Co., Ltd.
Technology Prize from Japan Gas Association for bathroom heater/dehumidifiers with mist sauna function.
2008 Established Rinnai Italia s.r.l., and opened Integrated Logistics Center.
Gas instant-heating hot-water unit sold in the United States received Energy Efficiency Award from the Alliance to Save Energy (ASE).
Received ISO 14001 certification for Head Office.
2009 Establish Rinnai Canada Holdings Ltd.
2010 Opened Production Engineering Center.
Started No.3 factory operation in Rinnai Korea.
Shanghai Rinnai supported establishment of Rinnai Xiwang Elementary School in a deprived area in Anhui Province.
2011 Awarded Shanghai Gold Quality Award.
Established Hainan Rinnai Minsheng Kitchen Appliances Sales Co. Ltd.
2012 Started operation in Balaraja factory, Rinnai Indonesia.
Achieved recorded production of 7.2 million tabletop gas stoves yearly in Rinnai Indonesia.
Guangzhou Rinnai acquired Guanzhou Rishangsheng Gas and Electric Appliances Sales Co.
Rinnai New Zealand acquired H.J.Cooper limited.

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