Honda, others to launch joint research on hydrogen engines

According to The Jiji News, Honda Motor Co., Yamaha Motor Co. and two other Japanese motorcycle makers have announced that they will launch joint research for the development of hydrogen-powered engines for small mobility.
The four companies, also including Kawasaki Motors Ltd. and Suzuki Motor Corp., said they will set up a technological research association in June. Through the move, the four firms aim to develop eco-friendly, next-generation motorcycles that can help enhance their international competitiveness.

https://sp.m.jiji.com/english/show/26329