The Uni Mitsubishi Pencil Company of Japan is headquartered in Tokyo, Japan. Originally established in 1925, it has become one of the largest pen and pencil makers in the world. Uni's corporate philosophy is "the best quality is the best service."

Uni has produced some highly popular product lines over the years. The Jetstream ballpoint and multi pen lines are known for their smooth-flowing ink. The Signo Bit UM-201 gel ink pens are hailed as the world's thinnest gel ink pens. The Signo Broad UM-513 white color gel ink pen has become an absolute must-have light-color ink pen by scrapbookers. The Kuru Toga auto lead rotation mechanical pencils keep the lead tip sharpened as the lead is consumed. Last but not the least, the Alpha Gel ballpoint and mechanical pencil series use soft silicone gel on their grips to reduce writing fatigue.