日本科技- 重估高盛目标价：AI 服务器电源光学、实体 AI、价格调整及业务重组将塑造 2026 年格局

Investment Rating - The report maintains a "Buy" rating for several companies in the Japan Industrial Electronics sector, including Anritsu, Panasonic HD, Hitachi, Sumitomo Electric, Fujikura, SWCC, Mitsubishi Electric, and Daihen. Furukawa Electric and Fuji Electric are rated as "Neutral" [7]. Core Insights - The Japan Industrial Electronics sector is poised for growth driven by technological advancements in AI server power and optics, with companies like Hitachi, Mitsubishi Electric, and Panasonic actively developing new business models to leverage AI's importance [1][12]. - The report anticipates that the implementation of physical AI in social infrastructure will gain momentum, with conglomerates expected to progress in their business portfolio strategies by 2026 [1]. - The sector is experiencing a shift towards higher voltage systems in data centers, which presents opportunities for electrical equipment manufacturers skilled in high voltage applications [22][24]. Earnings Estimates and Target Prices - The report revises FY3/26E-FY3/28E operating profit estimates for the sector by an average of 0%/-1%/-1%, while raising 12-month target prices by an average of 4% [3][7]. - Specific target price adjustments include Anritsu from 2,400 million JPY to 2,600 million JPY, Panasonic HD from 2,100 million JPY to 2,300 million JPY, and Hitachi from 5,900 million JPY to 6,000 million JPY [7][3]. Technological Changes in AI Server Power - Companies like Hitachi and Mitsubishi Electric are increasing their presence in AI server power solutions, focusing on high-voltage DC systems to reduce conversion losses and improve efficiency [12][13]. - The report highlights the importance of battery backup units (BBUs) and hybrid supercapacitors (HSCs) in managing power fluctuations in generative AI data centers, with Panasonic having a strong position in BBUs [16][12]. Technological Changes in AI Server Optics - The report notes a significant shift towards higher communication speeds in data centers, moving from 200-400 Gbps to 800-1.6 Tbps, and the transition to Co-packaged Optics (CPO) [28][29]. - Companies such as Mitsubishi Electric, Sumitomo Electric, and Furukawa Electric are increasing production of optical devices and connectors to meet rising demand [30][31]. Implementation of Physical AI - Hitachi, Mitsubishi Electric, and Panasonic are focusing on integrating AI into industrial applications, with expectations of increased competition as software companies also enter the physical AI space [47][49]. - The report categorizes companies in the sector based on their involvement in AI infrastructure, AI-enabled revenues, and productivity gains, with Hitachi identified as a key beneficiary across all categories [48][49].