If I had gone to a big company, it would have been very difficult for me to do research freely. At a big company, say Sony, there are very, very good researchers. So I would have to ask them what I could do.
I'm not sure whether I could win a Nobel Prize or not, but the Nobel Committee called me, and, 'You got the Nobel Prize.' So, I was so, so happy, and I was so surprised.
I was so surprised because I'm not too sure whether I could win a Nobel Prize, you know, because basically, physics, it means that usually people was awarded for the invention of the basic theory. But in my case, not a basic theory, in my case just making the device, you know.
I have been very fortunate to be supported by many people in my career. I also appreciate my personal friends, business friends, and my family who have been patient and understanding of my long working hours.
The LED light bulb is more than ten times the efficiency of regular incandescent lighting, so it can save the world hundreds of billions of dollars in electricity costs.