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History
| 1971.4 |
WELCO established in Tokyo, Japan |
| 1974.9 |
Delivered a train information display system for the Japan Rail (JR) bullet train between Tokyo and Hakata |
| 1977.4 |
Developed and launched a telemeter system for tunnel engineering |
| 1978.8 |
Developed and launched a LAN system for factories |
| 1988.10 |
Delivered a telemeter system for tunnel engineering in the Dover Straits |
| 1991.4 | Started development of peristaltic pump |
| 1992.9 | Launched chemical dispensers for commercial dishwashing machines |
| 1993.8 | Launched chemical dispensers for laundry machines |
| 1996.9 | Obtained patent for laundry’s waste water neutralization system |
| 1997.6 | Developed and launched high-perfomance WP1000 peristaltic pump |
| 1998.5 | Obtained US and Japanese design patent for high-perfomance WP1000 peristaltic pump |
| 1999.10 | WP1000 peristaltic pump won Good Design Award |
| 2000.4 | Developed and launched the compact WPX1 peristaltic pump |
| 2000.10 | Developed and launched an ultra-compact chemical despenser unit for commercial dishwashing machines |
| 2003.8 | Developed and launched an automated cleaning fluid supply device for coin laundries |
| 2006.3 | Stepper motor lineup introduced for the WP1000 and WPX1 peristaltic pumps |
| 2008.4 | Moved to new company premises |
| 2010.4 | Developed and launched the high-performance WP-1100 peristaltic pump |
| 2010.6 | Obtained ISO9001:2008 certification |
| 2010.9 | Developed and launched the ultra-compact WPM peristaltic pump |
| 2011.6 | Yuichi Kon succeeded Yukio Kon as President and Chief Exective Officer |
