Graduated from Keio University.
Completed the G.G. & Design Course at G.I.A Santa Monica and acquired a diploma qualification as Graduate Gemologist (G.G.).
Joined I.D.C. (International Diamond of California), a company based in California, USA selling diamonds.
Engaged in diamond buying, re-cutting business, and grating.
Returned to Japan and established a corporation, Hasseki Shoten.
Presided over "Jewelry Hasseki" in Kunitachi, Tokyo.
Since 2008, has exhibited in IJT (International Jewelry Tokyo)
Honored with the JJF Jewelry Award
Became a member of JPP