November 21, 1778|
Kunitomo, Nagahama, Shiga
|Died||December 26, 1840|
Kunitomo Kosunaki (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.
Other uses of the name
Kunitomo’s reflecting telescope, 1831.
Observation of the moon by Kunitomo in 1836.
Air gun developed by Kunitomo, circa 1820–1830.
Air gun trigger mechanism.