4.Representative articles are as follows: The manufacturer looks at the next ten years, 2nd World Telecommunications Forum 75, Geneva, Switzerland, September 1975; Shaping a communications industry to meet the ever-changing needs of society, INTELCOM 77, Atlanta, Georgia, USA, October 1977; The Japanese computer industry: its roots and development, 3rd USA–Japan Computer Conference, San Francisco, California, USA, October 1978; A perspective on the new situation: ‘C + C’, INTELCOM 78, Atlanta, Georgia, USA, November 1978; The Japanese telephone industry in the year 2000, 3rd World Telecommunications Forum 79, Geneva, Switzerland, September 1979; Computers, communications and man – the integration of computers and communications with man as the axis, 7th International Conference on the Use of Computers in Radiation Therapy, Tokyo, September 1980; Computers, communications and man–the integration of computers and communications with man as an axis; the role of software, 23rd IEEE Computer Society International Conference (CQMPCON 81), Washington, DC, USA, September 1981; C + C in the Pacific Age, PTC Seminar 81, Washington, DC, USA, June 1981; Overview of NEC's accomplishments on ‘C + C’-related technology, NEC Research + Development No. 56, January 1981.