Abstract
In recent years, the development of computers has dramatically changed our life style. The performance of the computer has changed greatly from 35 years ago when we were involved in computational chemistry at the company. At that time, large-scale calculations could only be done with large computers, but now it is easy for anyone to use computational chemistry in a familiar personal computer etc. From now on, we are expecting further utilization of computational chemistry by many chemists, and development of useful new technologies in computational chemistry. In this lecture, we will talk about how computational chemistry was launched and disseminated within the company, and how we had carried out industry-academia-government collaboration in order to create new technologies, at the dawn of computational chemistry. Then, I would like to tell the next generation youth the message that expect further progress of computational chemistry.