For some 100 years, many students have graduated from the internal combustion engine laboratories directed by the late Professor Watanabe Trajiro, the late professor Emeritus Seki Toshiro, the late Professor Nanba Masato, late Professor Emeritus Saito Takeshi, Professor Emeritus Daisho Yasuhiro. Many graduates are now working in automotive, heavily and energy industries around the world. The approach taken over many years by these professors has been to do experiments with real engines and combustion systems, although the engine test needs much research expenses. In particular, research activities from the time of Professor Emeritus Saito Takeshi have focused on environmental protection and energy conversion. The research sprit has passed to Professor Jin Kusaka, incumbent faculty members at Waseda University. Research at the laboratories now involves not just internal combustion engines, but hybrid and fuel cell, battery systems. The reseach staffs of Kusaka laboratory comes from Department of Modern Mechanical Enginerring and Depertment of Environment and Energy, Waseda University.