has he made any innovations?
The optimum Over-The-Wing Engine Mount configuration, and a natural laminar flow (NLF) wing and fuselage nose.
Michimasa Fujino
He discovered the optimum Over-The-Wing Engine Mount configuration to reduce wave drag at transonic speed. This aeronautical breakthrough was proven to dramatically enhance aircraft performance, fuel efficiency, and passenger comfort (spacious and quiet cabin).

He also developed a new natural laminar flow (NLF) wing and fuselage nose for the light jet and a new hybrid composite structure, which contributed to a lighter airframe. These three innovations allow the HondaJet to achieve highest speed, superior fuel efficiency and the most cabin and luggage space over other jets in its class.
who manufactured the honda ha-420 hondajet? The Honda Aircraft Company. when was it manufactured? 1999. when did the company establish? August 2006. who started this company? Michimasa Fujino. who designed the jet? Michimasa Fujino. where is he from? UNANSWERABLE
wiki:4224580
Michimasa Fujino [SEP] Innovations and designs
Fujino's clean sheet design for an advanced light jet that could achieve both high speed and high fuel efficiency led to the development of key technologies and concepts. He discovered the optimum Over-The-Wing Engine Mount configuration to reduce wave drag at transonic speed. This aeronautical breakthrough was proven to dramatically enhance aircraft performance, fuel efficiency, and passenger comfort (spacious and quiet cabin). He also developed a new natural laminar flow (NLF) wing and fuselage nose for the light jet and a new hybrid composite structure, which contributed to a lighter airframe. These three innovations allow the HondaJet to achieve highest speed, superior fuel efficiency and the most cabin and luggage space over other jets in its class.