日立公司有电力、电机系统、家用电器、信息、电子五个事业本部（事业本部下有事业部）和材料、汽车设备、检测仪器、系统四个事业部。四个事业部的产品和销售额尚不如事业本部多，但因其属于新兴领域，故直属公司管辖。日立公司的产品可分为四大部分：信息、通信系统、电子器 Hitachi has four business divisions: Electric Power, Motor Systems, Household Appliances, Information, and Electronics (Business Division under Business Division) and Materials, Automotive Equipment, Inspection Instruments, and Systems. The products and sales of the four business units are not as good as the business headquarters, but they are directly under the jurisdiction of the company because they belong to emerging areas. Hitachi’s products can be divided into four major parts: information, communication systems, electronic devices