About Inoue Masaru
Lived 1843 – 1910 (aged 66). Inoue Masaru was a Japanese engineer, farmer and politician.
Viscount was the first Director of Railways in Japan and is known as the "father of the Japanese railways".
Biography He was born into the Chōshū clan at Hagi, Yamaguchi, the son of Katsuyuki Inoue. He was briefly adopted into the Nomura family and became known as Nomura Yakichi, though he was later restored to the Inoue family.
Masaru Inoue was brought up as the son of a samurai belonging to the Chōshū fief. At 15, he entered the Nagasaki Naval Academy established by the Tokugawa shogunate under the direction of a Dutch naval officer. In 1863, Inoue and four friends from the Chōshū clan stowed away on a vessel to the United Kingdom. He studied civil engineering and mining at University College London and returned to Japan in 1868. After working for the government as a technical officer supervising the mining industry, he was appointed Director of the Railway Board in 1871. Inoue played a leading role in Japan's railway planning and construction, including the construction of the Nakasendo Railway, the selection of the alternative route (Tokaido), and the proposals for future mainline railway networks.
His tomb is in the triangular area of land where the Tōkaidō Main Line meets the Tōkaidō Shinkansen in Kita-Shinagawa.
Chōshū Five These are the four other members of the "Chōshū Five": Itō Shunsuke (later Itō Hirobumii) Inoue Monta (later Inoue Kaoru) Yamao Yōzō who later studied engineering at the Andersonian Institute, Glasgow, 1866-68 while working at the shipyards by day Endō Kinsuke
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Important facts
People in Inoue Masaru's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Inoue Masaru's
Frequently asked questions
Who was Inoue Masaru?
Japanese politician (1843-1910)
When was Inoue Masaru born?
Inoue Masaru was born on 25 August 1843 in Hagi.
When did Inoue Masaru die?
Inoue Masaru died on 2 August 1910 in London.
What was Inoue Masaru's occupation?
Inoue Masaru was an engineer, farmer and politician.
What nationality was Inoue Masaru?
Inoue Masaru was Japanese.
Sources & further reading
· DBpedia: Inoue Masaru (civil servant)
Cite this page
APA: Biography.guide. (2026). Inoue Masaru. https://biography.guide/inoue-masaru/
MLA: "Inoue Masaru." Biography.guide, https://biography.guide/inoue-masaru/.
Chicago: "Inoue Masaru." Biography.guide. https://biography.guide/inoue-masaru/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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