Kenichi HayasakaKenichi Hayasaka graduated from Tohoku University, Japan, in 1977 and earned his master's degree in 1983 from the University of Illinois at Chicago. He is the author of 16 research publications and inventor and co-inventor of 23 inventions. Mr Hayasaa has been a researcher and engineer at Yamaha Motor Co., Ltd., since 1977. He is involved in the research and design of gears and transmissions applied in motorcycles and marine propulsion systems and in the development of enhanced computerized design systems for optimizing low-noise and durability of spiral bevel gears, helical gears, and spur gears. Read More Read Less