Ambiguous tag.
- For the electronic device called 真空管 in Japanese, see Vacuum Tube.
- For an eromangaka, see Shinkuukan (Motoya Shin).
- For the artist formerly tagged here, see Shinkuukan (Tetsuo3).
- For some other artists named shinkuukan: shinkuukan_* | *_shinkuukan
- For some characters named shinkuukan: shinkuukan_* | *_shinkuukan
- For some copyrights named shinkuukan: shinkuukan_* | *_shinkuukan