This guy is still on multiple corporate boards. Somehow, I think his activity on these boards is declining.
He retired from GE in 1992 where he did most of his R&D work in the late 80s. I can't see him researching new works at his age even if he is still very healthy and active. The labor investment is better spent on someone younger than sixty.
He started on the board quite a while ago, so he had to have a say in the decision to suspend MTI Micro's operations in 2011.