Research

• C14 Radiocarbon dating test (AMS) on Japanese sword
  with Eminent professor Toshio Nakamura
  Nagoya Univ. Division for Chronological research.
  <Published academic papers PDF>
  Radiocarbon dating of Japanese swords and ancient iron artifacts
  with accelerator mass spectrometry
  
  
• Non-destructive test focused on polished surface of Japanese sword