Offices & Factories

• Headquarters – Takinogawa, Kita-ku, Tokyo, Japan
• Osaka branch – Minamikaneden, Suita-shi, Osaka, Japan
• Nagoya branch – Tsutsui, Higashi-ku, Nagoya, Japan
• Tokyo factory –  Ukima, Kita-ku,Tokyo, Japan
• Tokyo Factory Funado Support Center – Funado, Itabashi-ku, Tokyo, Japan

Subsidiary

• Dongyang Jingji Trading (Shanghai) Co., Ltd. (China)

Products

• Universal Testing Machines, Strograph™
• Melt Flow Indexer
• Capillary Rheometer, Capilograph™
• Pendulum Impact Tester
• Abrasion Tester
• COF Tester
• Creep Tester
• MIT Folding Endurance Tester
• DeMattia Flex Cracking Tester
• Vibration Fatigue Tester
• Elmendorf Tearing Tester
• Mullen type Burst Tester
• Stiffness Tester
• HDT/VICAT Tester
• Flammability Tester
• Cone Calorimeter
• Geer Oven
• Ozone Aging Test Chamber
• Gurley type Densometer
• Gas and water Vapor Permeability Tester
• Modular Torque Rheometer, Labo Plastomill™
• Moving Die Rheometer (MDR)
• Mooney Viscometer
• Automatic Densimeter
• Pencil Scratch Hardness Tester
• Film Stretching Tester
• Heat Gradient Tester
• Brittle Point Temperature Tester
• Gehman Stiffness Tester
• Low Temperature Retraction Tester (TR Tester)
• Rubber Resilience Tester
• Rubber Tack Tester
• Inkometer

​

Universal Testing Machine, Strograph™
Semi-Automatic Melt Flow Indexer
Pendulum Impact Tester
HDT/VICAT Tester
Geer’s Aging Oven
Modular Torque Rheometer, Labo Plastomill™
Moving Die Rheometer

Customers

【Government administration office】

• Ministry of Economy, Trade and Industry
• Ministry of Finance
• Ministry of Land, Infrastructure, Transport and Tourism
• Fire and Disaster Management Agency
• Ministry of Education, Culture, Sports, Science and Technology
• Ministry of Defense
• National Police Agency
• National Printing Bureau
• National Institute of Technology and Evaluation (NITE)
• Building Research Institute
• National Institute of Advanced Industrial Science and Technology (AIST)
• Forest Research and Management Organization
• Public Works Research Institute (PWRI)
• National Institute for Materials Science (NIMS)
• Institute of Physical and Chemical Research (RIKEN)
• The National Agriculture and Food Research Organization (NARO)
• Industrial Technology Center of each prefecture

【School】

• National, prefectural, and private universities: Faculty of Science, Engineering, Agriculture, Home Economics, and affiliated research institutes
• Testing laboratory

【Private-sector corporation】

• Asahi Kasei Corporation
• Achilles Corporation
• ASICS Corporation
• Ajinomoto Co., Inc.
• ADEKA Corporation
• Idemitsu Kosan Co.,Ltd.
• Ichikoh Industries, Ltd.
• UBE Corporation
• AGC Inc.
• NOK Corporation
• Oji Holdings Corporation
• Obayashi Corporation
• Okamoto Industries, Inc.
• Kao Corporation
• Kansai Paint Co., Ltd.
• Kaneka Corporation
• Kajima Corporation
• Canon Inc.
• KYOCERA Corporation
• Kinugawa Rubber Industrial Co., Ltd.
• Kuraray Co., Ltd.
• Kureha Corporation
• Konica Minolta, Inc.
• DNP Fine Chemicals Co., Ltd.
• SABIC Petrochemicals Japan LLC
• ENEOS Materials Corporation
• Resonac Corporation
• SWCC Corporation
• Sharp Corporation
• Shiseido Company, Limited
• Shin-Etsu Chemical Co., Ltd.
• Shin-Etsu Polymer Co.,Ltd.
• Nippon Steel Corporation
• JFE Holdings, Inc.
• ENEOS Corporation
• Suzuki Motor Corporation
• Sumitomo Chemical Company, Limited
• Sumitomo Electric Industries, Ltd.
• Sumitomo Rubber Industries, Ltd.
• 3M Japan Limited
• Sekisui Chemical Company, Limited
• Sony Corporation
• Daikin Industries, Ltd.
• Dai Nippon Printing Co., Ltd.
• Dai Nippon Toryo Company, Limited
• Takenaka Corporation
• Daicel Corporation
• Taisho Pharmaceutical Holdings Co., Ltd.
• Dainichiseika Color & Chemicals Mfg.Co.,Ltd.
• Daihatsu Motor Co., Ltd.
• JNC Corporation
• Techno-UMG Co., Ltd.
• Teraoka Seisakusho Co., Ltd.
• Denso Corporation
• DIC Corporation
• DJK Corporation
• TDK Corporation
• Denka Company Limited
• Teijin Limited
• Sumitomo Riko Company Limited
• Toray Industries, Inc.
• Toyo Ink SC Holdings Company, Limited
• Toyo Tire Corporation
• Toshiba Corporation
• Toppan Inc.
• Toyoda Gosei Co., Ltd.
• Toyota Motor Corporation
• Tokuyama Corporation
• Tosoh Corporation
• Zeon Corporation
• Japan Tobacco Inc.
• NEC Corporation
• Nippon Telegraph and Telephone Corporation
• Nippon Paint Co., Ltd.
• Nissan Motor Co., Ltd.
• IBM Japan, Ltd.
• Japan Polypropylene Corporation
• Japan polyethylene Corporation
• Nisshinbo Holdings Inc.
• Nitto Denko Corporation
• Panasonic Holdings Corporation
• BASF Japan Ltd.
• Hitachi, Ltd.
• Proterial, Ltd.
• Furukawa Electric Co., Ltd.
• FUJIFILM Holdings Corporation
• Fujikura Ltd.
• Fuji Electric Co., Ltd.
• Subaru Corporation
• Bridgestone Corporation
• Fujitsu Limited
• Honda R&D Co.,Ltd.
• Hokuetsu Corporation
• Polyplastics Co., Ltd.
• Mazda Motor Corporation
• Mitsui Chemicals, Inc.
• Mitsubishi Engineering-Plastics Corporation
• Mitsubishi Chemical Group Corporation
• Mitsubishi Gas Chemical Company, Inc.
• Mitsubishi Electric Corporation
• Mitsubishi Cable Industries, Ltd.
• Mitsubishi Paper Mills Limited
• Murata Manufacturing Company, Ltd.
• Yazaki Parts Co., Ltd.
• Yamaha Corporation
• Unitika Ltd.
• Unimatec Co., Ltd.
• The Yokohama Rubber Co., Ltd.
• Lion Corporation
• Ricoh Company, Ltd.
• Riken technos Corporation
• YKK Corporation

etc.

History

From the 1930s to the 1950s, the company mainly manufactured testing equipment for paper, textiles, and inks.  Since the 1960s, TOYOSEIKI has been manufacturing and selling mainly testing equipment for plastics and rubber.

• 1934 – Founded by Shozo Endo in Sarugaku-cho, Kanda, Tokyo. (March 1st)
• 1939 – Moved to Takinogawa, Tokyo and established company.

Takinogawa new company building dedication ceremony (1939)

• 1950 – Focused on development of pulp and paper testing machines.
• 1953 – Production of Inkometer and Hoover type Muller begins.

 Inkometer (R), Hoover type Muller (L)

• 1955 – Production of Melt Flow Indexer begins.

Melt Flow Indexer (1955) 

• 1958 – Itabashi Factory begins operations.

 Takinogawa Head Office (1959)

• 1960 – Production of the “Strograph” load cell type universal testing machine begins.

Universal Testing Machine “Strograph” (1960)

• 1962 – Musashi Factory begins operations; Osaka Branch opens.

Musashi Factory (1962)

• 1963 – Production of rubber vulcanization tester “Oscillating Disk Rheometer” begins.
• 1964 – Received certification as an export-contributing company
• 1968 – Production of Building Material Combustibility Tester begins; Nagoya Branch opens.
• 1970 – Production of Torque Rheometer “Labo Plastomill™” begins.
• 1974 – Production of Biaxial Stretching Tester begins.
• 1978 – Production of Automatic Densimeter begins.
• 1982 – Production of Capillary Rheometer “Capillograph™” begins.
• 1988 – Tokyo Factory begins operations.

 Tokyo Factory (1988)

• 1997 – Obtained ISO 9001 certification, the international standard for quality management systems.
• 2002 – Tokyo Factory Funado Support Center begins operations.
• 2012 – Established Dongyang Jingji Trading (Shanghai) Co., Ltd. (China)