| 2023 | December | Restructure the company through an absorption-type company split | 
|---|---|---|
| 2019 | February | Regional Energy System Development Support Program Using Innovative Storage Batteries 2018 <Selected> | 
| June | Research and Development Program Phase D On The New Energy Development and Commercialization (Large-scale demonstration R&D) 2019 <Selected> | |
| 2017 | June | NEDO (2017) New Energy Technology Innovation Support Program for venture companies (New Energy Venture Technology Innovation Program) <Selected> | 
| July | Kurume City Manufacturing Support Program 2017 <Selected> | |
| November | Independence/Return Support Employment Creation Industrial Location Subsidy 2017 (Manufacturing/Service Industry Location Support Program) <Selected> | |
| 2016 | October | Relocate Tsukuba Research Laboratories with a new name, Tsukuba Technical Center | 
| 2015 | April | Establish Tsukuba Research Laboratories | 
| June | NEDO 2015 New Energy Venture Innovation Program <Selected> | |
| July | Small and Medium Enterprise Agency (2015) Strategic Basic Technology Advancement Support Program <Selected> | |
| 2014 | June | Small and Medium Enterprise (SME) Agency. (FY2013 amendment) SME / Small Business / Manufacturing / Commerce / Service Innovation Program <Selected> | 
| Kurume City Manufacturing Promotion Program <Selected> | ||
| 2013 | September | Kurume city Support Program <Selected> | 
| Joint research with Kurume Institute of Technology and development on battery charging system of RFB | ||
| October | Joint research with Gunma Technical College - Natural Renewable Energy on Grid System | |
| December | Relocate headquarters to Kurume Higashiaikawa | |
| 2012 | May | Participate in Kyushu Institute of Technology Green cube project | 
| Redox flow battery stabilization test (10 months) | ||
| 2011 | January | Establish LE Systems Co., Ltd. | 
| 2011 | October | Start the redox flow battery demonstrated and collaborative research at Genkai-cho, | 
| Kurume city Support Program <Selected> | ||
| Joint research with Kyushu Institute of Technology on redox flow battery titer sensor |