| 2023 | December | Restructure the company through an absorption-type company split |
|---|---|---|
| 2021 | March | Capital reduction to 100,000,000 yen |
| 2020 | August | Capital increase to 1,563,378,000 yen |
| 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＞ | |
| August | Capital increase to 1,213,000,000 yen | |
| 2018 | August | Capital increase to 828,000,000 yen |
| September | Capital increase to 843,000,000 yen | |
| 2017 | February | Capital increase to 331,000,000yen |
| May | Capital increase to 337,000,000yen | |
| 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 | Capital increase to 626,000,000 yen | |
| Independence/Return Support Employment Creation Industrial Location Subsidy 2017 (Manufacturing/Service Industry Location Support Program) ＜Selected＞ | ||
| 2016 | January | Capital increase to 233,000,000yen |
| September | Capital increase to 278,000,000yen | |
| October | Relocate Tsukuba Research Laboratories with a new name, Tsukuba Technical Center | |
| 2015 | January | Capital increase to 145,000,000 yen |
| 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 | April | Capital increase to 100,000,000 yen |
| 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 | August | Capital increase to 33,000,000 yen |
| 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 | April | Capital increase to 23,000,000 yen |
| May | Participate in Kyushu Institute of Technology Green cube project | |
| Redox flow battery stabilization test (10 months) | ||
| 2011 | January | Establish LE Systems Co., Ltd. Capital 8,000,000 yen |
| 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 |
