Yachi Yoko was born in Osaka (Japan) .
She started playing violin when she was 15 years old and she played in her high school and university orchestra.
In 2003 she moved to Cremona where she began learning the art of violinmaking starting to work in the atelier of Master Stefano Conia.
In the same period she enrolled in the International violinmaking school of Cremona where she graduated in 2007 under the guidance of Maestro Lorenzo Marchi.
In the same year she got the diploma of bowmaking attending the regional course held by Master Giovanni Lucchi in Cremona.
Since 2005 she has been working in the workshop of Master Marco Osio.
She makes violins, violas and cellos using classical Cremonese models with high quality and seasonated wood taking special attention to the acoustic quality of the instruments she creates.
She employs spirit and mixed varnish of red-brow colour.
In 2007 she partecipated in Pisogne national competition where she got the 1st. prize and gold medal in the young makers category.
During the period 2014-2015 she has created her first Quartetto.
In 2023 she got the 3rd. prize at "Giovanni Battista Guadagnini" International Competition of Piacenza, Cello category.
For years she has been researching for the acoustic development of the cello, having also developed a personal model.
She is merber of Italian Violinmaking Association and Kansai Instruments Makers Association.