Local media reported he had been working in his garden when the accident happened. No further details are known.
Henri Kudelski had himself worked for Kudelski Group since 1995, most recently in cyber-security.
The news comes just weeks after the death of his father Stefan Kudelski, the Polish-born audio engineer, known for the Nagra series of professional audio recorders. Today, the Nagra company is best known for its digital TV services and smart card security.