In 1954, our founder, the late Shinji Hirose, successfully developed Japan’s first functional paper (wet-laid nonwoven fabric) using synthetic fiber vinylon through joint research with the Polymer Chemistry Laboratory at Kyoto University. Building on this success, Hirose Paper Mfg. Co., Ltd. was established in 1958. Since our founding, we have continually aimed for world-class technologies and today possess the world’s thinnest papermaking technology (2g/m², made entirely from polyolefin fibers). Our main products include battery separators, membrane filter supports, and insulation materials, contributing to a richer quality of life through our product offerings.
