JB12

At just 16mm × 22mm (0.6 inches x 0.9 inches), JB12 paper is the smallest format defined in the Japanese JIS B series paper standards. With dimensions yielding a minute surface area of 0.0004 square meters, JB12 facilitates extremely space-efficient solutions for specialty printing accents like seals, inventory tags, and labels. Part of the post-WWII industrial standardization efforts in Japan, JB12 maintains the classic “Kiku” aspect ratio. It does not have significant alternate names or notable adoption outside East Asia compared to globally used ISO sizes. However, within Asian printing ecosystems, JB12 fills a unique niche role for micro-format output when minimal material usage is paramount. Following traditional norms emphasizing precision control and conservation, JB12’s diminutive footprint represents ongoing prioritization of exacting standards tailored to local technical and cultural needs underpinning Japanese industrial guidelines.