 The third Kōju served under Toyotomi Hideyoshi, the fourth under Tokugawa Ieyasu.The eighth Kōju Takae Jyuemon was known as a particular master of incense of note.During this time the “Ten Virtues of Kō” (香の十徳, "kōnojūtoku") were formulated, which is a traditional listing of the benefits derived from the proper and correct use of quality incense