Company

1925

Incorporated

Masaki Pencil Manufacturing and Yamato Pencil merge,
forming Masaki Yamato Pencil Co., Ltd.

1927

Going Global

The company began its international expansion by forming export partnerships and introducing Japanese-made writing instruments to new markets around the world.

1958

Birth of“uni”

Mitsubishi Pencil created the legendary high-quality “uni” pencil through years of innovation to achieve exceptional smoothness.
This iconic product remains beloved to this day.

1979

The First “uni-ball”

Following its launch of the first ball point in 1959, Uni Mitsubishi Pencil marketed the very first “uni-ball”, which was then the world’s first rollerball pen with a metal tip.

1983

Posca Creative Marker

The POSCA marker was introduced as a revolutionary, water-based, all-surface creative tool. It quickly became a favorite among artists and hobbyists.

The unique POSCA ink technology later inspired the development of our cosmetic nail products.

1985

Founding of Unicosmo

Unicosmo Co., Ltd. was founded as a wholly owned subsidiary of Mitsubishi Pencil. The idea was to apply writing instrument technologies to cosmetics.

A U.S. inquiry about adapting brush pens for nail products led to the creation of the pen-type cosmetic applicator, a true innovation that blended art and beauty.

1990s~

Nail Brush Pens

We introduced our first manicure pen featuring a push mechanism for effortless precision.

With a specially designed brush that retained liquid beautifully, it offered a smooth, quick-drying finish and inspired collaborations with leading beauty brands.

1994

Uni-Ball Eye Rollerball

The launch of the uni-ball Eye transformed the rollerball category.

With its vivid pigment ink and smooth, consistent flow, it became the world’s best-selling rollerball pen — and remains a symbol of innovation today.

Pioneer of Liquid Eyeliner
Development

We introduced a rotating-type eyeliner that delivers flawless coverage and smooth, smudge-resistant lines.

Around the same time, we developed elegant spot- makeup containers ideal for concealers and lip liners.

2000s~

Hair Dye Applicator Pen

Leveraging our felt-tip pen technology, we created an easy-to-use hair dye applicator pen, laying the foundation for today’s popular grey hair retouch markers.

2006

brush

We began in-house production of brushes, ensuring superior quality and control in cosmetic applicators.

2008

Kuru Toga
Mechanical Pencil

The Kuru Toga introduced a self-rotating lead mechanism that keeps the tip perfectly sharp for consistent lines — the same precision technology now used in our push-type eyeliners for controlled, stable dispensing.

~2010s

Nail Art Pens
& Gel Pencil Eyeliner

Drawing inspiration from POSCA, we created the Nail Art Pen for professional-grade nail design.

Gel-based mechanical pencils also emerged, offering vivid color and smooth performance.

Ready to use-type Eyeliners

Utilizing the mechanism of our reservoir-type marker and the direct ink-type rollerball pens, we developed an eyeliner designed for immediate, effortless use upon opening.

Our direct ink-type eyeliner adopts leak-proof mechanism developed for our uni-ball eye collector design.

2023

Eye Ocean Care

The launch of EYE Ocean Care marked a new era of sustainability — from 75% recycled plastics of which 10% ocean waste.

Sustainable Eyeliners

We also introduced rechargeable cartridge-type eyeliners, combining eco-conscious design with a luxurious matte black finish derived from sustainable, charcoal-based ingredients.