Since 2021 Manufacturing Division at Ibaraki Japan: (C.I.Takironcivil Corporation, Japan) Manager,

2019 – 2020 Development Division at Ibaraki Japan: (DAIPLA Corporation, Japan) Manager, 2012 – 2017 Development management group at Chiba Japan:  Head of management group,

2009 – 2012 Civil engineering design staff at Osaka Japan: Study for designed plastic piping systems, tanks and apparatus

2002 – 2009 Production staff at Hyogo Japan: Study for plastic extrusion molding by spiral wounding piping method Production for plastic tanks & apparatus, piping systems

1997 – 2002 Technical research center at Chiba Japan: (Dainippon plastics co., ltd, Japan) Study for materials, testing, designed of structural pipe for large diameter