NAGASE LANDAUER, LTD.
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Monitoring the radiation dose from occupational exposures in hospitals, research institutions, industrial facilities handling radioactive materials, etc. is extremely important in preventing health hazards and promoting the safe use of radiation.

Nagase Landauer, Ltd. provides radiation dose monitoring services, i.e. radiation dosimetry services, since 1974 that began under the joint venture between Nagase & Co., Ltd. Japan and the world’s largest dosimetry service provider Landauer Inc. USA.

Landauer developed the Optically Stimulated Luminescence (OSL) dosimeter technology, starting with the Luxel Badge, and Nagase Landauer Ltd., Japan began using OSL dosimeters in the year 2000. Since then, we have been using OSL technology to provide the finest radiation dosimetry service with more than 1.8 million users across the globe.

In September 2009, construction of our new head office and factory building was completed to coincide with the introduction of the Quixel dosimeters.

In 2017, we launched the Luminess Dosimetry Service, the newest OSL dosimeter developed for personal and environment dose monitoring, and is currently used for Nagase Landauer’s dosimetry service.

OSL dosimeters have established itself as the global standard in radiation dosimetry providing accurate and easy to use features for occupational, environmental, and patient dosimetry.

Our mission is not only to provide reliable products and detailed customer support, but also to provide peace of mind by visualizing the invisible radiation for customers with our high-technology dosimetry service.
Furthermore, we are continuously striving to improve our products and services to support the safe use of radiation, and we hope that these products will bring happiness and peace of mind to as many people as possible around the world.

Our Management Philosophy


We will continue to protect the well-being and prosperity of people through honest business activities supporting the safe and secure use of radiation.
We will respect the creativity and harmony of our employees, encourage their sense of fulfillment, and enrich our sustainable growth.

Nagase-Landauer, Ltd.

Nagase-Landauer, Ltd.