Born 31 March 1939, Citizen of Yokohama-city, Kanagawa prefecture of Japan.

He graduated from National University of Electrical Communications in 1961 and joined the shipping company Mitsui-O.S.K Line.

He worked as an officer at headquarters after onboard service as Radio-electronic Officer on the company’s ships.

He moved to manufacturer Tokimec Inc. (previous name was Tokyo Keiki Co., Ltd) in 1970 and worked as the engineer of System design and several managers of engineering, product planning, business planning and marketing. During these positions, he experienced the development of the Ship Automation Systems and Integrated Bridge Systems including Electronic Chart systems.

He retired this company in 2000.

He had granted a qualified as Marine Counsellor (Lawyer for Marine Accident Inquiry) by Japanese government and he is working his own consultant office of Katayama Marine Technology Consulting (KMTC) today.

Concurrently, He was appointed to the following positions of standardizing and maritime engineering organizations.

- The Shipbuilding Research Association of Japan
     - Committee of Navigation safety division (Corresponding to IMO NAV)
     - Committee of Search and Rescue division (Corresponding to IMO COMSAR)

- Japan Marine Standards Association (Corresponding to ISO)
     - Chairman of Navigation Equipment Technical Committee
     - Chairman of Information technology Technical Committee

- Japan Electronics and Information Technology Industries Association (Corresponding to IEC)
     - Guest advisor for the Committee of Standardizing Standardization of Navigation Systems

- Japanese Marine Equipment Association
     - Technical advisor

- Japan Electric Installation Association
     - Instructor for Onboard Installation of electronics equipment

- Japan Marine Accident Inquiry Association
     - Member of Japan Institute of Navigation
     - The president of SafeNav-NetForum (E-mail based forum of Safety Navigation)

Office Address:
    Katayama Marine Technology Consulting (KMTC)
    5-1-12-206, Konan-dai, Konan-ku, Yokohama-city 234-0054
    Kanagawa-pre., Japan
    Phone: +81-45-832-8960 / Fax.: +81-45-832-8960
    E-mail: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it