Who defines the market needs?
Since the invention of writing, human society has advanced by the propagation and exchange of knowledge. As information is transferred mainly in writing, it is important for writers to write sentences that are easy to read. For a long time, sentence writing was dependent on well trained experts. It was only in the 19th century that ordinary people were able to write sentences with beautiful print fonts using the newly invented typewriter. However, when using a typewriter it is easy to misspell by hitting a wrong key. The human operator is responsible for correct and high speed typing skills, which are only achieved by an expert. When I joined Ricoh in 1973, this company had a tradition of developing new things. Although the company faced financial difficulty because of the Oil Shock, it still provided enough supportive human resources for researchers and engineers in such fields as calculation, clean copy of design drawings or technical document rewriting. We had one support worker for
