Home Rating Lists Corporates Aoyama Seisakusho News Release Aoyama Seisakusho(830072) News Release Jun. 02, 2026 JCR Assigned BBB+/Stable Long-term Issuer Rating to Aoyama Seisakusho Rating Lists Corporates Financial Institutions Public Sector Structured Finance (Investment Corporations) Structured Finance (Structured Finance Products) Sovereigns and Supranationals