Nokia is expected to cut another 220 jobs as part of further plans to reduce research and development activities in Japan, bringing the total worldwide R&D job cuts to 550.
In March, Nokia announced plans to lay off 1,700 staff worldwide in its Devices and Markets units, as well as head office and global support functions, to save costs in reaction to slowing global sales.
The latest cuts will affect only Nokia's R&D departments and will not affect the Japanese operation of Nokia Siemens Networks or Vertu, Nokia's line of hand-crafted mobile phones for the luxury market.
The announcement comes just a week after Nokia said it is to reduce its R&D activities in Finland and Denmark, affecting up to 230 jobs in Finland and 100 in Denmark.
Last month, it announced the restructuring of its leadership team after it reported a net loss of $1.4bn for the third quarter 2009. Revenue was down 20% at $14.6bn.