Mimasu Semiconductor Industry Co., Ltd. engages in the processing of semiconductor materials, sales of precision equipment, and design, production and sale of automated equipment. It operates through the following business segments: Semiconductor, Industrial Sales, and Engineering. The Semiconductor segments sells and processes semiconductor materials such as prime and reclaim wafers. The Industrial Sales segment provides measuring instruments, testing devices and other precision machineries. The Engineering segment develops, designs, and produces automated equipment and robot systems related to semiconductors. The company was founded on June 4, 1969 and is headquartered in Takasaki, Japan.