About US

Bunkoukeiki Co., Ltd. is a pioneer and specialist manufacturer of spectral response measurement systems and solar simulators. We offer a wide range of instruments for the development and testing of photovoltaic cells and panels. Our products are widely used by the major Japanese institutes and manufacturers - One of our flagship products the model CEP-2000 dye sensitize/organic thin film PV cell evaluation system was co-developed with the National Institute of Advanced Industrial Science and Technology (AIST).

Our products are manufactured to the highest specifications and offer the ultimate in performance.

Although widely used for measurement to the JIS (Japanese Industrial Standard) we offer systems which can be used for any international measurement standard.

We are very specialized in customizing the system.  If you need any modification or you can not find the system, accessories or etc to meet your applications, please contact us.