For half a century, Daiichi Eizai has been
bringing Japan-quality specialized absorbent products to the world
from our home in northern Shikoku,
one of Japan’s leading paper-producing regions

With production located in the city of Kan-onji, Kagawa Prefecture, since its founding in 1965 Daiichi Eizai Co., Ltd. has continued to research, develop and manufacture specialized absorbent products for more than half a century in a region blessed with clean water and rich natural resources, always aiming to achieve the highest levels of quality anywhere in Japan.


  • 1965

    Daiichi Eizai Co., Ltd. is founded Motoichi Hoshikawa appointed president

  • 1967

    Head office factory expanded

  • 1968

    Yamamoto factory built
    Introduced Starnap, the industry’s first individually wrapped sanitary napkin

  • 1969

    Introduced Star brand disposable diapers (adult disposable diapers)

  • 1977

    Began production of pet toilet sheets

  • 1978

    Introduced the first sanitary napkin in Japan to use high-absorbency polymer

  • 1985

    Established an automated warehouse


  • 1990

    Introduced nursing care brand FREENE (adult disposable diapers)

  • 1994

    Mitsuhiro Hoshikawa appointed president
    Marine oil adsorbent material obtains Ministry of Land, Infrastructure,
    Transport and Tourism type certification

    Introduced incontinence pads for adults


  • 2001

    Introduced SANSA LAND brand of industrial materials

  • 2004

    Introduced pet toilet pads and pet sanitary napkins

  • 2005

    Introduced C&F brand of industrial materials

  • 2007

    Introduced pet pad band (Patented)

  • 2008

    Introduced P.one pet brand

  • 2008

    Introduced a urine absorbent pad (Patented)

  • 2009

    Gifu factory opened


  • 2010

    Introduced pocket-type incontinence pad for men (Patented)
    Introduced pet diapers
    Introduced a 200 cm x 90 cm absorbent sheet, the largest such sheet in Japan

  • 2011

    Introduced a belted disposable diaper for (male) dogs (Patented)
    Launched Cotton 100, Japan’s first sanitary napkin designed for sensitive skin

  • 2012

    Launched third-party logistics (3PL) with logistics centers in Aichi, Osaka,
    Okayama and Fukuoka

  • 2015

    50th anniversary New head office building completed

  • 2017

    Yamamoto factory renovated

  • 2017

    Introduced SHIRAYURI funerary brand

  • 2017

    Introduced Doctors.one medical brand

  • 2017

    Introduced BOUSAIJIN industrial material brand

  • 2017

    Chosen as a “Company Driving Regional Growth” by the Ministry of Economy,
    Trade and Industry

  • 2019

    Introduced CHÉRICOT brand of feminine products
    Introduced Japan’s first fully cotton napkin

Daiichi Eizai will continue to create the products its customers need


Please feel free to contact us with any
questions you may have about our products.

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