About us

As a 100%-funded subsidiary of Nitto Boseki Co., Ltd., our company has been achieving growth by advancing product development together with our customers since its establishment in 1987.

The Nittobo Group owns 3 goat farms for producing antisera, and we use only select quality antisera for our immunoturbidimetric products. arrow Nittobo America Inc.

We manufacture our products using internally sourced and carefully selected raw materials, which enables us to consistently manage and improve the quality and performance of our products in the best possible way.

We have established a stable supply chain form procurement of raw materials to delivery of finished products around the world.

Moreover, in our Specialty Chemicals division, we use special polymerization technologies to develop new polymer materials and applications in wide areas.

Polyallylamine (PAA) and Polyamine Series (PAS), which were developed with proprietary technology, are functional cationic polymers obtained through the polymerization of allyl amines. We have a variety of copolymers and derivatives which can be used across a wide range of fields.

Company Information

1. Establishment August 28, 1987
2. Address Odori Building 7F, Kojimachi 2-4-1,
Kojimachi, Chiyoda-ku, Tokyo 102-0083
3. Business

Research and development, manufacturing and sales of in vitro diagnostics, antisera, serum and plasma.

[Specialty Chemicals]
Development, manufacturing and sales of functional polymers, etc.

4. Capital 300 million yen (100% invested in Nitto Boseki Co., Ltd.)
5. President Masao Fukushima
6. Sales Branch /Plant Medical
Tokyo Headquarters Chiyoda-ku, Tokyo
Osaka Branch Osaka City, Osaka
Sapporo Office Sapporo City, Hokkaido
Sendai Office Sendai City, Miyagi
Nagoya Office Nagoya City, Aichi
Hiroshima Office Hiroshima City, Hiroshima
Fukuoka Office Fukuoka City, Fukuoka
Fukuyama Plant Koriyama City, Fukushima
Specialty Chemicals
Tokyo Headquarters Chiyoda-ku, Tokyo
Fukuyama Plant Koriyama City, Fukushima
7. Closing date End of March
8. Main bank Mizuho Bank,
MUFG Bank,
9. Number of employees 224 (As of March 31, 2024)
10. Subsidiary companies Frontier Institute Co.,Ltd.


  • 1898
  • Koriyama Kenshi Boseki Co., Ltd. (Koriyama) was founded.
  • 1918
  • Fukushima Seiren Seishi Co., Ltd. (Fukushima) was founded.
  • 1923
  • Nitto Boseki Co., Ltd. was founded.
    Founded after Fukushima Boshoku Co., Ltd. (formerly Fukushima Seiren Seishi Co., Ltd.) absorbed Katakura Seishi Iwashiro Bosekijo (former Koriyama Kenshi Boseki Co., Ltd.) and changed name to Nitto Boseki Co., Ltd.
  • 1987
  • Nittobo Medical Co., Ltd. was established.
  • 2009
  • Production and sales functions in Nittobo Medical Co., Ltd. were integrated.
  • 2010
  • SC business split and succeeded from Nitto Boseki Co., Ltd., and Nittobo Medical Co., Ltd. was reborn.