Company Overview

Company Overview

EstablishedFeburuary 1962
Capital40 million yen
Business detailsDesign, development, and manufacture of strain gauges and transducers
Board of directorsYuzo Tosaka, President and CEO
Kenzo Noguchi, director
Akio Amano, director
Ichiro Miyasawa, director
Employees90(50 men, 40 women)
Lines of businessStrain gauges, load transducers, 6-component force transducers, pressure transducers
torque transducers, digital display gauges, dynamic strain amplifiers
Business locationsMain office; 1-17-16 Nishihokima, Adachi-ku, Tokyo
Plant; 5-24-27 Hokima, Adachi-ku, Tokyo
Osaka Sales Office; Shin-Miwa Bldg,. 1-5-16 Enokojima, Nishi-ku, Osaka
BanksBank of Tokyo-Mitsubishi UFJ,Resona Bank
Affliated companiesShowa Seimitu Inc.
ESA Inc.


1949Resarch on resistance-wire strain gauges begins for the first time in Japan at the Transport Research Institute.
1950Wire gauges and static strain gauges are completed at the aforementioned Institute.
1960Design of electric scanning strain indicator
1961R&D for the purpose of commercializing foil strain gauges.
1962Showa Measuring Instruments Research Institute Co., Ltd. is established.
Manufacturing of foil strain gauges, pressure meters and all kinds of measuring instruments begins.
1964Main office and plant move to Nakamaru-cho, Itabasi-ku Tokyo.
1967Osaka branch office is established.
1969Nagoya branch office is established.
1970Main office and plant move to Shimura, Itabashi-ku, Tokyo.
1970Company name is changed to Showa Measuring Instruments Co., Ltd.
1972Mejiro Plant is newly established. Dedicated production of foil gauges begins.
1973Hokima Plant is established at Nishihokima, Adachi-ku.
1981Main office moves to 1-17-16 Nishihokima, Adachi-ku.
1990Construction of new planmt completed at 5-24-27 Hokima, Adachi-ku.
Production streamlining of load,pressure,and torque transducers.
1990Development of small, lightweight 6-component force transducer.
1992Capital increases to 40 million yen.
1998Calibration certification is obtained from JCSS(as a measurement researchlaboratory) for 20 kN and 200 kN force calibration machines.
2001ISO 9001 certification is obtained.
2002Accreditation is obstained as a JCSS “force” accredited company.
2008ECO Action 21 certification is obstained.
2015Certified as an MRA-compliant JCSS-accredited operator.
2021Start of high capacity calibration service with introduction of 5MN force reference machine.
2022Kyoto sales office established, Osaka sub-branch closed.

Head office/offices and factories

For telephone enquiries about our products, please contact the following sales office.

For enquiries by e-mail, please use the enquiry form.

Head office/Tokyo sales office

1-17-16 Nishihokima, Adachi-ku, Tokyo 121-0812
tel 03-3850-5431 fax 03-3850-5436
Area covered: Shizuoka, Nagano, Ishikawa and eastwards…

Kyoto Sales Office

4F Reno Court, 403-3 Higashi-Uratsuji-cho, Kamigyo-ku, Kyoto, 602-8031, Japan
tel 075-256-8757 fax 075-256-8758
Area covered: Aichi, Gifu, Fukui and westwards…


5-24-27 Hokima, Adachi-ku, Tokyo 121-0064
tel 03-3858-3241 fax 03-3859-1240

Panoramic view of the factory

1F: Adjustment, inspection and calibration of load cells, pressure transducers, torque transducers, etc.
2F: Outgoing inspection, quality assurance, factory operations
3F: Clean room, assembly line mainly for standard transducers
4F: Design department, conference room, calibration room


Strain gauges are bonded at a cleanliness of 10 000 and at a constant temperature and humidity.

Main equipment

5MN Amsler compression testers / 500KN Amsler compression testers / 200KN switching force standard (jcss) / 20KN switching force standard (jcss) / 50MPa deadweight pressure standard / 5MPa deadweight pressure standard / 20kNm torque tester / 2kNm torque tester / Gauge Blocks (1mm – 200mm) / Reference weights (5g – 20kg) / Ultra-precision digital multimeters / Ultra-precision digital static strainmeters / Ultra-precision digital static strain calibrators / Standard voltage generators / High precision photo-etching machines / Programmable constant temperature chambers / etc.

Technical support

Questions about strain gages/strain gage transducers and measurement are welcome.
Please use the enquiry form to contact us.

Quality assurance system

Showa Sokki’s basic policy on quality assurance is to provide products that satisfy customers. The concept of quality assurance does not stop at guaranteeing standards and performance as a ‘thing’, but is interpreted as something that can only be obtained by providing products that meet the requirements of the customer. We have a very wide range of strain gages and applied sensors, but we aim to “manufacture products that satisfy our customers” not only by providing standards and performance in our catalogue, but also by proposing and following up on the best products through communication. In February 2001, we acquired ISO 9001 quality system certification, and we are confident that this will enable us to further respond to the trust of our customers.

Traceability system

All products delivered to customers are tested and inspected based on a traceability system, which is indispensable for quality assurance.Recently, load cells and other transducers have been used in large numbers not only for testing and research purposes but also as quality control equipment on production lines, and we strive to maintain and control testing and inspection equipment in the manufacturing process to ensure that our customers can use our products with confidence.

ETL: Electronics Technology Laboratory, Industrial Technology Research Institute, Ministry of International Trade and Industry (MITI)
NPL: National Physical Laboratory, UK
NIST: US Federal Bureau of Standards and Technology
CRL: Communications Research Laboratory, Ministry of Posts and Telecommunications
DPLA: Danish Primary Laboratory of Acoustic
PTB: German National Institute of Science and Technology

JCSS accreditation (accreditation no. 0112)

Showa Sokki Calibration Laboratory Co., Ltd. is accredited as a ‘force’ accredited business (June 2002).JCSS accredited business operators are accredited by the Minister of Economy, Trade and Industry and can provide JCSS calibration services to general users using specified secondary standards that have been calibrated by specified standards etc. They are mainly used for the calibration of high-precision load cells and load cells for load verification with the JCSS logo mark, and calibration is carried out by dedicated calibration operators.

Company Profile