History
The 1970s
’73 | Establishes San Denshi Laboratory, and sets up factory in Nobeoka Launched GQ systems and blasting equipment |
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’74 | Name changed to San Denshi Industry |
’76 | Launched the oil leak detector, CL-3005, pet name is Apolarm™ Started sale the electronic applications product as control board and switchboards |
’78 | Launched the Automatic Viscometers |
’79 | Launched the production of plant diagnostic equipment by vibration |

The 1980s
’83 | Awarded Superior Plant Maintenance Product, Vibration monitoring system, MD-210 from Japan Institute of Plant Maintenance |
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’87 | Launched the product of laser-based defect inspection equipment |
’87 | Launched the on-line type plant diagnostic equipment, LEONEX. |
’88 | Launched the vibration monitoring system, MD-480. |
’88 | Launched the vibration monitoring system, MD-680. |
’89 | Launched the high-voltage on-line insulation testing equipment |

The 1990s
’93 | Awarded outstanding product, oil checker, MD-410 from the Japan Institute, Kanto area of Invention and Innovation. |
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’95 | Awarded outstanding product, laser-based defect inspection equipment from the Japan Institute, Kyusyu area of Invention and Innovation. |
’97 | Launched the oil film detector, LMD-1000, pet name is Apolarm™M |
’98 | Launched Automatic Test Equipment (ATE) business Certified ISO 9001 for developing and manufacturing of electronic equipment |
’99 | Receives ISO 14001 certification (Nobeoka Plant) |

The 2000s
’00 | Launched Apolarm™M(LMD-2000) oil film detectors |
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’02 | Electronic equipment operations of San Denshi Industry are spun off as Asahi Kasei Technosystem Co., Ltd., |
’04 | Launched MD-550 vibration analyzers |
’06 | Listed as an Exceptional Enterprise in the IT Management Selection 100, under the auspices of the Ministry of Economy, Trade and Industry |
’07 | Receives Plant Maintenance Award from Japan Institute of Plant Maintenance, for e-LEONEX-WEB system |
’07 | Launched Apolarm™B(CS-0305) oil layer detectors |
’07 | Launched micro Apolarm™(CSR-1505) oil leak detectors |
’08 | Launched MD-320 vibration monitoring system |
’09 | Receives Plant Maintenance Award from Japan Institute of Plant Maintenance, for MD-320 vibration monitoring system |

The 2010s
’11 | Launched Apolarm™C(CSR-3005) oil leak detectors |
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’12 | Launched Apolarm™M(LMD-3000) oil film detectors |
’14 | Launched Apolarm™M(LMD-3000EX) explosion proof oil film |
’15 | Launched MD-580 portable field balancer |
’15 | Launched MD-Multi-Line Multiple transmission plant equipment monitoring system |
’16 | Launched NSD-1000 odor detectors |
’18 | Launched FD-280C fluorescent type water-soluble oil detector |
’18 | Launched MD-910 NEARLINE™plant diagnostic equipment Receives Plant Maintenance Award from Japan Institute of Plant Maintenance, for MD-910 NEARLINE™plant diagnostic equipment |
