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Kunitomo Ikkansai

(1778-1840)
Japanese scientist
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Kunitomo Ikkansai (国友 一貫斎, November 21, 1778 – December 26, 1840) was a Japanese gun manufacturer of the early 19th century, who, after having spent several months in Edo, where he could get accustomed with Dutch wares, built Japan's first reflective telescope in 1831. It was of the Gregorian type.

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Born
21 November 1778
Kunitomo, Nagahama, Shiga
Died
26 December 1840 (aged 62)
Zodiac Scorpio
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