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 | 
 
