I have recently read about some of the "Nissen ittai," or "Japan and Korea as One," policies, however I'm not finding a lot of details on them.
The examples I currently know include how newspapers and magazines published in Korean were closed and the Korean Language Society was disbanded, some Koreans were forced to adopt Japanese family names, and there were forced state Shinto devotions. However, the sources I am currently using do not include many specifics.
I think a broad but relevant introduction to the subject can be found in Japanese Assimilation Policies in Colonial Korea, 1910-1945. Hope it's what you're looking for.
Not a historian, and since I'm Korean I don't know too much about good English sources. But Bruce Cummings' Korea's Place in the Sun: A Modern History is probably a good place to start.