April 1, 1978
Twice placed in the top 15 at the pearl competition organized by the Ehime Prefectural Federation of Fisheries Cooperatives (700 members)
Twice placed in the top six in the preliminary round of the national competition of the Ehime Pearl Cultivation Cooperative
Joined the pearl cultivation council of the Shimonada Fisheries Cooperative (now Ehime Prefectural Fisheries Cooperative Association, Shimonada Branch)
Joined the Ehime Pearl Cultivation Cooperative
January 24, 1995
Founded 有限会社天成真珠 (Tensei Pearl).
Moved from individual ownership to a company.
Started pearl processing and sales.
Joined the Uwajima Pearl Sales Association and the Ehime Products Association (now Ehime Prefecture Tourism and Products Association)