After coming back to Japan he worked under Kenji Sugita, one of the finest guitar makers in Japan.
And then he did an apprenticeship program under a world renowned luthier, Sergei de Jonge, to elevate his skills and knowledge more. He learned french-polishing skills as well at that time.
Ryo is now making about 12 guitars a year and doing repair jobs in Kanagawa, Japan.
Each of the guitars are handmade, tuned up carefully with chladni method and french-plished by himself.