• Japanese


Feb. 1974 Company established as a joint venture of Nagase & Co., Ltd. (listed on the First Section of both the Tokyo and Osaka Stock Exchanges),and Tech/Ops Landauer, Inc. (current company name: Landauer, Inc., listed on the New York Stock Exchange) with a capital of 47.7 million yen.
Began offering Film Badge Service.
Apr. 1976 Established Osaka Sales Office.
Apr. 1979 Introduced Ring dosimeter (TLD) System from USA. Began offering Ring dosimeter Service.
Apr. 1985 Launched Neutrak Badge Service for neutrons, using etched pit method developed by the company.
Jul. 1987 Introduction of Radtrak Radon gas monitor from Landauer, Inc. Commenced service.
Sep. 1988 Began exporting ADC precision molded product Baryotrak, co-developed with Fukuvi Chemical Industry Co., Ltd., to the USA.
Oct. 1990 Concluded exclusive agency agreement with BTI of Canada for bubble detectors and radiationrelated products. Commenced domestic sales.
Dec. 1990 Increased capital to 88 million yen.
Oct. 1997 Began the sale of high energy heavy charged particle detector, Heatsrus TNF-1.
Apr. 2000 Introduction of next-generation personal dosimeter Luxel based on OSL technology from Landauer, Inc. Commenced service.
Mar. 2001 Completed transfer from Film Badge to Luxel Badge.
Apr. 2002 Obtained ISO9001:2000 certification for Luxel Badge Service.
Apr. 2005 Obtained ISO9001:2000 certification for Ring dosimeter Service.
Nov. 2009 New head office building completed at current location; relocation of Head Office.
Apr. 2010 Launched QuIxel Badge Service.
Jul. 2010 Obtained ISO9001:2008 certification for QuIxel Badge Service.
Sep. 2014 Expanded manufacturing base and capacity.
Apr. 2017 Launched Luminess Badge Service.