did you even read handcannon? Jesus.. And no musket as in musket it looked like a musket, its called a musket not bamboo sparkler with shrpanel (fire lance). SO take back your statement that chinese did not invent guns because they did. The first GUN is the handcannon invented by chinese thanks.  Whatever you think is true. Once again, you seem to be missing the point of this thread. So what have the JAPANESE invented?.... Nevermind I don't care that would be off topic.