2010/4-2013/3: Functional Material Technology Team, Engineering, Kurita Water Industries: troubleshooting of UPW system, analysis of various RO membrane, field application of RO membranes
2013/4-2016/3: Functional Material Technology Team, Engineering, Kurita Water Industries: troubleshooting of UPW system, analysis of various IER, field application of IER
2016/4-2017/3: Ultrapure Water Team, R&D, Kurita Water Industries: Development of H2O2 decomposition catalyst resin, elucidation of degradation mechanism of catalyst resin
2017/4-2018/3: Ultrapure Water Team, R&D, Kurita Water Industries LTD.: TOC component removal in UPW
2018/4-present: Ultrapure Water Team, R&D, Kurita Water Industries LTD.: automation and optimization of primary UPW system