Born in Tochigi, Japan.
Keiji Nakanishi studied graphic design at Tama Art University and holds a master's degree. After graduated he worked on the design and he got interested in violin making.
In 1999, Nakanishi enrolled at Violin Making School OSAKA, Japan, studied bowed instruments making after Takao Iwai, a disciple of Gio Batta Morassi and Ikuko Suzuki, a disciple of Giorgio Scolari.
He returned to his native town of Tochigi, in 2002 and opened his own studio, Liuteria Violinya. A member of the KANSAI String Instruments Makers Association and a member of the “Japan Master Violin Makers”