Only one Buddha has emanations, Shakyamuni Buddha of the Juryo Chapter of the Lotus Sutra. There is no concept in the Lotus Sutra or the authentic writings of Nichiren, "True Buddha or Buddhas". That would mean there are "False Buddhas" which is an oxymoron. How can a Buddha be false? According to the Lotus Sutra and Nichiren there are, however, Ancient and Manifestation (more recent Buddhas). All Buddhas however are emanations of Shakyamuni Buddha of the Juryo Chapter, the Original Teacher.