Japanese automakers are intensifying their efforts towards achieving carbon neutrality by focusing on strengthening their hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle (PHEV) technologies, in addition to battery electric vehicles (BEVs) and hydrogen-related technologies. Toyota, Nissan, Mazda, and Subaru have secured approval from the Japanese Ministry of Economy, Trade and Industry (METI) to establish new lithium-ion battery plants in different prefectures, with government subsidies covering a significant portion of the costs. Each automaker has outlined its specific plans for electrification and technology development. Toyota is investing in new engines suitable for electrification, carbon-neutral fuels, BEVs, hydrogen, and software-defined vehicles. Honda aims to secure funds to invest in electrification and software areas through 2030, with a focus on strengthening its motorcycle and ICE/hybrid businesses. Nissan is promoting electrification with a focus on EVs and hybrid models, while Suzuki has a strategy to reduce energy use and CO2 emissions significantly. Mazda plans to adopt an "intentional follower" strategy for BEVs while enhancing its HEV and PHEV offerings. Mitsubishi Motors is working on enhancing electrification according to regional conditions and partnerships. Subaru, in collaboration with Toyota, will introduce four BEV models by 2026, emphasizing a series-parallel hybrid system for its next-generation e-BOXER model. The Japanese government's support for investment in EV batteries reflects a broader commitment to advancing electrification in the automotive industry. The plans of these automakers signify a shift towards a more sustainable and technologically advanced future for the Japanese automotive sector.