M.WATANABE & CO., LTD. deals in various parts and equipments for semiconductor industry field and also the materials such as quartz for electronics industry. INTRODUCTION M.W. started in 1930 as an import/export business company. In 1941, the first affiliate manufacturing company was established. From the mid-1950s, M.W. started an export/import agency to handle laboratory & medical supplies. When the semiconductor industry made progress in Japan, M.W. started local sales of the ...