About us

SI Science Co.,Ltd. which has succeeded a stable isotope business of Shoko Co.,Ltd. was founded on October 1, 2009.
Si Science corporation merged with October 1, 2016. and company name was SHOKO Science Co.,Ltd.

Our stable isotope business has started by introducing technology of enriching 15N from the Institute of Physical and Chemical Research in 1972. Since then we manufactures 15N enriched compounds as a sole manufacturer in Japan.

Moreover we supply various kinds of stable isotope chemicals. Besides we have business of analysis of stable isotopes and purchasing relating expendable supplies.

Products and Services


Name SHOKO Science Co.,Ltd.
Date of Foundation September 25, 2009
Representative Kazunori IWATA ( Mr. )
Capital 50,000,000 YEN
Address 1-3-3, Azamino-Minami, Aoba-ku, Yokohama, 225-0012, Japan
Contact Us Click here
TEL +81-3-3459-5104 / FAX +81-3-3459-5081
E-mail isotope@si-science.co.jp
Shareholder Wholly Owned by Shoko Co.,Ltd. Belonging to Showa Denko Group