I roto i te kotahi tau i muri i te hokohoko tuatahi i roto i te patu, i taea e Japanese swordsmiths me ironsmiths ki te whakaputa i te tikanga matchlock me te papatipu-whakaputaina nga patu Portuguese. tata rima tekau tau i muri mai, "i te mutunga o te rau tau 16, he mea tino noa atu i roto i Japan atu i roto i tetahi atu whenua i roto i te ao", ona ope i rite rawa ki te maha o patu dwarfing tetahi ope taua i roto i Europe (Perrin). i kaha kaha nga patu i roto i te whakakotahitanga o Japan i raro i Toyotomi Hideyoshi ko Tokugawa Ieyasu, me i roto i nga whakaekenga o Korea i 1592 me 1597. Ko te daimyo nana i timata te whakakotahitanga o Japan, a Oda Nobunaga, i whakamahi nui i nga pupuhi (quebars) i te wa e whai waahi ana ia ki te pakanga o Akashino, i whakaarihia hei pakanga i roto i te pakanga o Kurosawa i roto i te kiriata o Akashino.
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