Prof.Shin Yong-ha(1997) (cache) and other pro-Korean claim that Japanese government and Newspaper conspired to "keep secret" and "not to publish the fact Takeshima was formally incorporated into Shimane" in official gazette nor newspapers so that many Korean and other foreigners in Tokyo could not know the incorporation. But Tokyo Asahi Shimbun(東京朝日新聞), the former name of the Asahi Shimbun, which was one of the most popular newspapers in Japan and the paper reported a circulation of over 100 thousands copies on weekdays already in 1900, actually made correction of the name of the island from "Liancourt Rocks" in 30th May to "Takeshima" in 5th June, following the correction article of Official Gazette on a same day. Obviously, it was no secret for Japanese government nor newspaper at all and apparently the fact that Liancourt Rocks was now Japanese Takeshima was easily accessible to all the foreigners including many Korean in Tokyo.
According to Prof. Shin's delusional "conspiracy theory", "Japanese government didn't allow newspaper to publish the fact so that the "secret" could be kept from many Koreans rediding in Tokyo at the time". In other words, if Official Gazettes corrected the name of the island and newspapers like Tokyo Asahi Shimbun, one of the largest newspaper printed the corrected map clearly indicate Liancourt Rocks was now Japanese "Takeshima", Korean definately had noticed about the incorporation of so-called their island. Korean always say that Korea had no chance of protest since it had no diplomacy in 1906, but there were no trace of protests against these official gazettes and newspapers in spite of it was way before the the Second Korea-Japan Agreement (referred to in South Korea as the "Ulsa protectorate treaty") in November 1905, based on which Japan seized diplomatic sovereignty over the old Empire of Korea.
In fact, according to Prof. Shin, in October 1905, Korean did protest against Japanese when they noticed a Japanese tried to own the Korean land (江原道蔚珍郡竹辺浦), where Japanaese Imperial Navy built the watchtower and later removed it just like Takeshima. And Korean government succeeded in bringing back to Korea in April 1906 !! What about Takeshima/Dokdo? Why they didn't even made protest against Japanese active effective control on Ryanko-to(Takeshima/Liancourt Rocks) in early 1900's - 1905, in which Japanese had been hunting Sealions freely with some Korean hired, Navy investigating, building watchtowers and tearing down later or even after they finally found out that it was officially incorporated into Shimane in March 1906, just like they did to the land in 竹辺浦?
So, why Korean in Tokyo who were supposed to have read this newspaper and official gazette didn't protest the incorporation at all? The only answer is, well, very simple, I suppose, that Korean didn't considered it to be their territory at all. It is positively supported by the fact that in the June 2 edition of Korean newspaper "Hwangseong Shinmun"(皇城新聞), Korean actually called Liancourt Rocks as "Angohu島(island)=Liancourt island" which was same with Japanese called it, not Dokdo, Seokdo, Usando nor any other names Korean claim to be the old names for Takeshima/Liancourt Rocks afterall, and the fact in July 1906 Edition, they reported that Ministry of Interior officially replied to Japanese Govenor-General that Takeshima/Dokdo was out of Uld County , too.
(A lots of thanks to matsu, who told me where to find newpapers and Prof. Shin's article, and providing Japanese translations for us.)
1905 - May 30 - Tokyo Asahi Shimbun
1905 - June 05 - Tokyo Asahi Shimbun
1905 - January 28th: the decision to incorporate Takeshima in to Shimane by a Cabinet meeting （公文類集第29編 竹島編入閣議決定）
1905 - May 29 , 30 & June 5- An Extra of Official Gazette "The War Report of The Japan Naval Battle"
1905 - June 2 - 皇城新聞 : Korean called "Liancourt Rocks(リアンコルド岩)" as "Angohu島", not "Dokdo", Seokdo nor Usando.The 15th column " South Korea's
Groundless Claim of "Ingerent Part of (Korean) Territory"
1906 - July - Korea Omits Dokdo from Uldo County (皇城新聞 「鬱島郡의 配置顛末」)