Sense the Quality, Sense the Future

April, 1969 Sanei Electronics Laboratory was founded.
September, 1971 Company was renamed to SUN-A.
February, 1998 The capital was increased to 4 million yen.
April, 2004 Volume production of urea quality sensor was started as a subcontract from MITSUI MINING & SMELTING CO., LTD.
October, 2005 Head office and Miyoshi factory was newly constructed at Miyoshi Industrial Park and started the operation.
May, 2007 The advanced laboratory was founded and started the operation as a dedicated factory for urea quality sensor.
August, 2009 Urea quality sensor business was transferred to SUN-A from MITSUI MINING & SMELTING CO., LTD.
Sales has been started as our own brand.
February, 2010 Fuel quality sensor was developed and put on the market.
December, 2011 Saitama office was opened as a base office for sales of urea quality sensor.
September, 2012 Custom power module business was transferred to SHINDENGEN ELECTRIC MANUFACTURING CO.LTD.
May, 2013 The capital was increased to 310 million yen by receiving investment from Hiroshima Innovation Network Inc.
The advanced laboratory was renamed to Miyoshi center, specialized to sensor business.
April, 2015 Business-related patent rights has been inherited from MITSUI MINING & SMELTING CO., LTD.
August, 2015 Kuriyama Corporation has become our parent company and principal shareholder instead of Hiroshima Innovation Network Inc.