Our research is to find out the new properties from the nanomaterials such as carbon nanotubes, graphene, Di-chalcogenide and ZnO nanowires. We are investigating field emission properties from nanomaterias and also studying field emission applications such as vacuum transistor, x-ray sources and THz wave sources. Our research on field emission will open new area for vacuum nanoelectronics. Our one more interest is to realize flexible electronics using nanomaterials. We want to contribute to human’s life and the earth environments through our research work such as nanomaterials and vacuum nanoelectronics.