This simple idea served to provide information on the geometrical shape of reacting molecules, and I was able to make the role of the frontier orbitals in chemical reactions more distinct through visualization, by drawing...

Japanese universities have a chair system that is a fixed hierarchy. This has its merits when trying to work as a laboratory on one theme. But if you want to do original work you must...

This success led my theoretical group to the chemical reactivity theory, extending more and more widely the range of compound and reactions that were discussed.

But the nature of my main work in chemistry can be better represented by more than 280 English publications, of which roughly 200 concern the theory of chemical reactions and related subjects.

We pray that every field of science may contribute in bringing happiness – not disaster – to human beings.

Chemistry itself knows altogether too well that – given the real fear that the scarcity of global resources and energy might threaten the unity of mankind – chemistry is in a position to make a...

We think that it is the best scientists working in the frontier fields of science who are best able to judge what is good and what is bad – if any – in the application...

I became lecturer in the Fuel Chemistry Department of Kyoto Imperial University in 1943, assistant professor in 1945, and professor in 1951.

I must confess that, when I was writing the 1952 paper, I never imagined I would be coming to Stockholm to receive the Nobel Prize 30 years later.

I was also interested in formulating the path of chemical reactions.

In particular, for younger researchers on whom the future of mankind may depend. We believe that they are working with all the scientific wisdom at their disposal for the preservation of the inheritance of the...

In that spirit we wish to accept this highest honour – in the cause of peace – not for ourselves alone, but for all researchers in basic chemistry.

The basic idea was essentially the consideration of the importance of the electron delocalization between the frontier orbitals of reactant species.

The frontier orbital approach was further developed in various directions by my own group and many other scientists, both theoretical and experimental.