NAGANO KEIKI CO., LTD.

Founded: May 1, 1896 (Meiji 29)

Founded by Kaku Wada in Hara-machi, Bunkyo-ku, Tokyo, starting production of pressure gauges (the beginning of instrument factories in Japan)

Founded: May 1, 1896 (Meiji 29)

Reorganized as Tokyo Keki Manufacturing Co., Ltd.

Separated Tokyo Keki Manufacturing Co., Ltd. into Nagano Keki Manufacturing Co., Ltd. and Tokyo Keki Manufacturing Co. (now Tokyo Keki Co., Ltd.) as a liquidation company, established headquarters and factory in Komoro Town, Kiso District, Nagano Prefecture (now Komoro City) with a capital of 5 million yen

Established: December 21, 1948 (Showa 23)

Established: December 21, 1948 (Showa 23)

Moved headquarters and factory to Ueda City, Ueda

Obtained permission from the Japan Industrial Standards Association for pressure gauge factory

Designated as a measurement management model factory

Designated as a type 1 measuring instrument usage site

Established Tokyo factory in Chuo, Ota Ward, Tokyo

Completed Phase 1 construction of Aikawa factory in Aikawa, Ueda City, Nagano Prefecture

Established Tokiko Pressure Gauge Co., Ltd. (now Astemo Co., Ltd.) through a joint venture with Tokiko Co., Ltd. (now Astemo Co., Ltd.) and Nagano Co., Ltd., and began selling products of both companies

Completed Phase 2 construction of Aikawa factory, relocated Ueda factory (now Ueda Measuring Instrument Factory)

Obtained permission from the Japan Industrial Standards Association for bulldon tube-type pressure gauge, mercury-filled pressure-type indicating thermometer, and pressure gauge factory

Completion of Phase 3 construction of the current Ueda Measurement Equipment Factory and relocation of headquarters to Akikawa, Ueda City

Establishment of Nagano General Instrument Manufacturing Co., Ltd.

Relocation of headquarters to Higashimamogari, Ota Ward, Tokyo

Separation of the Tokyo factory and establishment of Nagano Co., Ltd.

Capital participation in Marshin Co., Ltd. (currently Yoshitomi Marshin Co., Ltd.)

Signed a technology sales agreement for pressure sensors with the measurement division of Dresser Industries, USA (currently Ashcroft-Nagano Keiki Holdings, Inc.)

Capital participation in Nagano Prefecture Packaging Materials Co., Ltd. (currently Epoch Nagano)

Capital participation in Yoshitomi Co., Ltd. (currently Yoshitomi Marshin Co., Ltd.)

Completion of Phase 1 construction of Maruko Electronics Factory in Maruko Town, Kōken District, Nagano Prefecture (currently Ueda City) and commencement of full-scale production of pressure sensors

Established DRESSER-NAGANO, INC. (currently Ashcroft-Nagano, Inc.) in California, USA through a joint venture with Dresser

Ueda Measurement Equipment Factory and Maruko Electronics Factory obtained ISO 9001 certification

Received the "Sasagawa Special Award" from the Japan Innovation Promotion Association (currently the Public Corporation Japan Innovation Promotion Association)

Signed a technology transfer and licensing agreement for high‑pressure sensing technology with Delco Electronics (currently Delphi Automotive Systems) in the USA

Maruko Electronics Factory, Phase 2 construction completed

Renamed Nagano Keiki Co., Ltd.

Signed a technology transfer and licensing agreement for high‑pressure sensing technology with Robert Bosch GmbH

Completion of new construction of the headquarters building

Registered shares on the over‑the‑counter market

Calibration of the heavy‑bell type pressure gauge was certified as a JCSS‑certified business under the metrology calibration service provider certification system

Signed a sales agreement for sensor sub‑assemblies with Texas Instruments (TI) in the USA

Ueda Measurement Equipment Factory and Maruko Electronics Factory obtained ISO 14001 certification

Established ADZ-NAGANO GmbH through a joint venture with German company ADZ

KA Series "In-Car Small Pressure Sensor" won the 2002 Nikkei Excellent Product Service Award for Best Product

Fukuda Co., Ltd. became a subsidiary

Opened a European office in Dresden, Saxony, Germany

Zetai Co., Ltd. (now Nagano Keiki Co., Ltd.) became a subsidiary

Opened the Nagano Instrument Technical Solutions Center in Okuta, Ueda City

Listed on the Second Section of the Tokyo Stock Exchange

Opened the Nagano Instrument Solutions Support Center in Oetterdelft-Ockirla, Saxony, Germany

Maruko Electronics Factory obtained ISO/TS16949:2002 certification from the Japan Gas Equipment Inspection Association (now the Japan Gas Equipment Inspection Association)

Sancast Co., Ltd. became a subsidiary

Ashcroft Holdings, Inc. (now Ashcroft-Nagano Keiki Holdings, Inc.) became a subsidiary

Designated as a First Section stock on the Tokyo Stock Exchange

S3C, Inc. became a subsidiary

Newer Co., Ltd. became a subsidiary

Merged with Marshin Co., Ltd. and changed the company name to Yoshitomi Marshin Co., Ltd.

Nagano Keiki Co., Ltd. merged with Zetai Co., Ltd.

Entered into a business partnership with Elmos Semiconductor AG (Germany) and Silicon Microstructures Inc. (USA) for joint development and supply of ASIC and MEMS-type pressure sensor elements

Established JADE Sensortechnik GmbH through a joint venture with intelligent Sensorsysteme Dresden GmbH

"Bipolar Standard Pressure Gauge" registered as a Future Technology Heritage

Shoubu Measurement Instrument Manufacturing Co., Ltd. became a subsidiary

Nakamura Mold Manufacturing Co., Ltd. was made a subsidiary

Obtained ISO 13485 certification for a quality management system specialized in medical device business

Transitioned to the Prime market following a review of market classifications by the Tokyo Stock Exchange

Expanded the diaphragm processing building (commonly known as DP building) on the premises of Maruko Electronics Factory to strengthen production capacity for pressure sensor element processing and polishing