One is 新訂地球万国方図(1854) which labeled Japan Sea as "朝鮮海 (Korean Sea)" and another one is 三国接壌之図(1785) by Hayashi Shihei. As to the latter, the newspaper mentioned "Dokdo and Ulleungdo were coloured green which shows Korean territory".
But the map in the article was not 三国接壌之図 but 朝鮮八道誌(朝鮮八道之図） by the same geographer Hayashi Shiei. Ulleungdo was labeled as "Ulleungdo Usanguku", which was not a proof of sovereignty of Dokdo. Pro-Korean people once claimed "東" in the map shows that Japan Sea was called as 東海 (Tong-he) in Japan too but it was a big mistake - the word 東 (east) was only written to show a point of the compass. http://toron.pepper.jp/jp/take/jpn/hakken.html