Technology-Oriented: Leading Business with Cutting-Edge Technologies

In 1954, our founder, the late Shinji Hirose, succeeded in the joint development of Japan's first wetlaid nonwoven using the synthetic fiber 'vinylon' with the polymer chemistry laboratory of Kyoto University, and in 1958 he established Hirose Paper Mfg. based on these research results. The company engaged in joint-development of the separator for alkaline dry cells with a battery manufacturer and became the leading manufacturer in Japan with superior product performance and quality. Since our establishment, we have always sought to develop the world's best technologies and now we have proprietary technology to make the world's thinnest paper (2g/m2; 100% polyolefin fiber). This technology has received acclaim in the global market making us a global company with an overseas sales ratio of over 65%.

We now engage in the development of promising, state-of-the-art nanofiber technologies. In 2007, we developed electrospinning nanofiber forming equipment using our own unique design. In terms of direct application, we are also engaged in the development of a separator for a next-generation lithium-ion secondary battery, high-performance air filters, and medical equipment, etc. for a future technological advancements.