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History
85 EVENTS
With a capital of 5 million yen, founder Yoshimasa Arizawa established Kanto Seiki Co., Ltd. in Edatown (now the "Edat Factory") in Maebashi City, Gunma Prefecture. Production of the automotive-specific "steering gear case" began.
With a capital of 5 million yen, founder Kameshi Hanzawa established Kanto Seiki Co., Ltd. in Edamachi, Maebashi City, Gunma Prefecture (now Edah Factory), and began production of steering gear cases exclusively for automobiles.
Capital increased to 9.8 million yen.
Capital increased to 9.8 million yen.
In response to increased orders for the steering gear case, the factory was expanded. Around this time, internal experiments on thermal displacement of machine tools were completed, analyzing the impact of oil temperature changes on machine tools. Based on these results, the Oil Temperature Automatic Adjustment Device was developed and a prototype was manufactured.
The product name of the Oil Temperature Automatic Adjustment Device was designated as "Oilmatic". Production and sales began as the OCH type.
Capital increased to 19.8 million yen.
In response to increased orders for Oilmatic, the Otomo Factory was constructed in Otomo Town (now Otawari Town), Maebashi City, Gunma Prefecture, and began operation.
Due to increased orders for Oilmatic, constructed the Ootomo Factory (now Headquarters Factory) in Ootomo Town, Maebashi City, Gunma Prefecture (currently Oodate Town), and commenced operation as a specialized factory for Oilmatic and cold heat equipment.
Capital increased to 29.4 million yen.
Capital increased to 29.4 million yen.
The refrigerated dehumidifier "Airmatic" was developed and sales commenced.
A general agency agreement for Oilmatic with Yubershehandel Co. was signed for Europe, and exports began. Three utility model patents related to Oilmatic were granted.
Signed an exclusive agency agreement for Oilmatic with Ueberzhandel AG (UHAG: Zurich, Switzerland) for the European region and began exporting to Europe. Three utility model patents related to Oilmatic were approved. Partnered with Tohatsu Co., Ltd. to start manufacturing small refrigeration units for cold chain refrigerated trucks.
Capital increased to 33.22 million yen. The factory-local cooling fan "Cleaser" was completed and sales began.
Capital increased to 33.22 million yen. Completed and began sales of the factory spot cooler 'Cleaser'.
Four patents related to Oilmatic were granted. The machine tool division was made independent, expanding machine tools and increasing personnel.
Four patents related to Oilmatic were approved. The industrial machinery division was spun off, expanding machine tools and increasing personnel, thereby establishing a system to handle increased orders for dedicated machines, automatic assembly machines, and precision jigs.
Capital increased to 40 million yen.
Capital increased to 40 million yen.
The headquarters were moved to the Otomo Factory, and the refrigeration plant was expanded to become the "Headquarters Factory". The old refrigeration plant was relocated to the "Machine Tool Factory".
The headquarters was moved to the "Ootomo Factory", and a refrigeration plant was added to increase OILMATIC production, becoming the "Headquarters Factory". Additionally, the "Kouki Factory" was relocated to the former refrigeration plant. The production systems of each department were dramatically strengthened.
The mold automatic temperature adjustment device "Moldmatic" series was developed and sales commenced.
Capital increased to 48.4 million yen.
In the refrigeration division, a high-precision oil temperature control device was developed. In the machine tool division, robots and NC control devices were developed, entering the industrial robot field.
In the refrigeration division, a high-precision oil temperature control device was developed in anticipation of the expected future advancement of "high-precision machining tools". In the machining division, new products such as "Pick & Place", "Cartesian coordinate robot", and "NC control box assembly device" were developed. As the "Pickmatic" auto-handling system, we entered the industrial robot sector.
Capital increased to 85 million yen. Received capital participation from Tokyo Small and Medium Enterprise Investment and Development Co., Ltd. Designated as a 'Small and Medium Enterprise Rationalization Model Factory' in Gunma Prefecture.
Capital was increased to 85 million yen. We obtained capital participation from Tokyo Small and Medium Enterprise Investment and Development Co., Ltd. The company was designated as a "SME Rationalization Model Factory" in Gunma Prefecture.
Established a product development office.
The FA system module 'Treachanger' series was completed and sales commenced.
Capital increased to 93.5 million yen.
Expanded a new machinery factory within the Eda plant. Established an integrated production system for the refrigeration and machinery divisions.
A new machining factory was added within the Eda plant. This established a continuous production system for the refrigeration and machining divisions.
New 3D automated warehouse installed within the headquarters plant.
Received designation as a Small and Medium Enterprise Rationalization Model Factory from the Small and Medium Enterprise Agency.
Received designation as a "SME Rationalization Model Factory" from the Small and Medium Enterprise Agency.
Expanded the headquarters office building within the headquarters plant.
An office building was added within the headquarters factory.
Developed an inverter-controlled oil matic to enhance speed and precision of machining centers, and obtained a patent. Launched as the MRSC(D) series.
To accommodate high-speed and high-precision spindle operation of machining centers, we pioneered the development of an inverter-controlled OILMATIC and obtained a patent. The MRSC(D) series was launched.
Transitioned refrigerant of all oil matic models to the new refrigerant 'R-407C' and performed a full model change.
Leading the industry, we transitioned all OILMATIC models from refrigerant gas to the new refrigerant "R-407C", achieving a full model change.
Expanded the Eda refrigeration factory within the Eda plant.
An Eda refrigeration plant was added within the Eda factory.
The machinery division obtained the 'One Company One Technology' certification from Gunma Prefecture.
The machining division received the "One Company, One Technology" certification from Gunma Prefecture. For "One Company, One Technology": here.
Obtained ISO 9001 certification.
ISO 9001 certification obtained.
Enabled high-precision liquid temperature control and debuted the environmentally friendly 'C Series'. Exhibited at JIMTOF 2004.
A wide-range, high-precision liquid temperature control and environmentally conscious circulating inverter-controlled OILMATIC: the "C Series" debuted. Exhibited at the 22nd Japan International Machine Tool Fair (JIMTOF 2004).
OILMATIC "C Series" debuted.
Obtained ISO 14001 certification.
ISO 14001 certification obtained.
Debuted the 'V Series', which enhances coolant cooling precision. Exhibited at JIMTOF 2006.
Expanded the 3D warehouse within the headquarters plant.
The submersible inverter-controlled OILMATIC "V Series", designed for high-precision coolant cooling, debuted. Exhibited at the 23rd Japan International Machine Tool Fair (JIMTOF 2006).
Achieved temperature precision of ±0.00055°C under ±0.04°C room temperature variation and presented a paper.
Successfully developed a high-precision liquid temperature control device for ultra-precision machining tools. Achieved a temperature accuracy of ±0.00055°C (measurement time: 36 hours) in an environment with ±0.04°C room temperature variation, and published the results in a paper.
Reference exhibited the non-fluorocarbon type oil matic 'Cnx750', which uses CO₂ as refrigerant, at JIMTOF 2010.
Considering the global warming potential (GWP), we showcased the non-fluorocarbon OILMATIC "Cnx750", which uses CO₂ (carbon dioxide) as refrigerant, at the Japan International Machine Tool Fair "JIMTOF 2010" as a reference exhibit.
Released the 'M Series' and 'Cμ Series', capable of ±0.05°C high-precision temperature control. Patented.
The OILMATIC "Cμ Series", capable of ±0.05°C high-precision temperature control, debuted.
Released the OILMATIC "M Series", capable of controlling temperatures at multiple points with a single unit, and the OILMATIC "Cμ Series", capable of ±0.05°C high-precision temperature control. Obtained patents for ultra-precision temperature control (±0.001°C over long periods) and ultra-precision pressure control (±1 kPa over long periods). Obtained a patent for the inverter PID control technology using a pulse bypass valve. Enabled continuous and highly accurate temperature control from no-load and low-load conditions to maximum thermal load.
Obtained certification as a Small and Medium Enterprise Model Factory in Gunma Prefecture.
Obtained certification as a Gunma Prefecture SME Model Factory. Obtained a patent for the dual bypass valve method non-inverter PID control technology.
Designated as a Small and Medium Enterprise Model Factory in Gunma Prefecture and selected among the 300 SMEs and small businesses by the Ministry of Economy, Trade and Industry and the Small and Medium Enterprise Agency.
Designated as a Gunma Prefecture Small and Medium Enterprise Model Factory. : Selected among 300 "Flying Small and Medium Enterprises and Small Businesses" by the Ministry of Economy, Trade and Industry and the Small and Medium Enterprise Agency. : Completed transition audit to the 2015 version for both ISO 9001 (QMS) and ISO 14001 (EMS). : Established the corporate mission "To be a brand that supports brands" and began operation using the management integration manual "Kompass ver1.0".
The Non-fluorocarbon Oilmatic Vnx1500 received the Special Award of the Review Committee at the 21st Ozone Layer Protection and Global Warming Prevention Award, and was exhibited at JIMTOF 2018.
Selected as a Regional Future Leading Enterprise by the Ministry of Economy, Trade and Industry.
The non-fluorocarbon oil-matic "Vnx1500" received the Special Award from the evaluation committee of the 21st Ozone Layer Protection and Global Warming Prevention Award (hosted by Nikkan Kogyo Shimbun). : Exhibited two non-fluorocarbon oil-matic models at JIMTOF 2018. : Selected by the Ministry of Economy, Trade and Industry as a "Regional Future-Leading Enterprise".
Obtained the Ikiki G Company Basic Certification from Gunma Prefecture as a company promoting employee work-life balance and related initiatives.
Received the "Ikigai G Company" Basic Certification from Gunma Prefecture as a local business engaged in balancing caregiving and work, promoting women's active participation in the workplace, and advancing employees' work-life balance.
Received the Excellence Award at the 47th Environmental Award.
Selected as a Global Niche Top Enterprise in the 2020 edition by the Ministry of Economy, Trade and Industry.
Designated as a renewed Gunma Prefecture Small and Medium Enterprise Model Factory. : Received the 47th "Environmental Award" Excellent Award from the National Institute for Environmental Studies and Nikkan Kogyo Shimbun for efforts to eliminate fluorocarbons in manufacturing sites. : Selected by the Ministry of Economy, Trade and Industry as one of the 2020 "Global Niche Top 100 Companies" for excelling in niche markets worldwide and for operating high-quality businesses such as parts and materials whose importance in the supply chain has increased amid changing international conditions.
Selected for the SDGs Gunma Business Practice by Gunma Prefecture.
Selected by Gunma Prefecture as a company conducting advanced initiatives related to the SDGs (United Nations Sustainable Development Goals) under the "SDGs Gunma Business Practice".
Abolished the division-based system and transitioned to a three-division structure: Sales Headquarters, Business Factory, and Management & Administration Headquarters.
Completed the E3 Building at Edah Factory, expanding and enhancing production capacity for the Purematic semiconductor manufacturing equipment.
Completed construction of the "E3 Building" within the Eda Factory. Expanded and enhanced production capacity for "Purematic" semiconductor manufacturing equipment.
Announced the GreenR™ series, conceptually focused on reducing environmental impact, at JIMTOF 2024 as a world premiere, and unveiled the Oilmatic series equipped with low-GWP refrigerants.
Conceptualized all business activities aimed at reducing environmental impact as "GreenR™". The "Oilmatic" series equipped with low-GWP refrigerants had its world premiere at JIMTOF 2024 (32nd Japan International Machinery Fair). Introduced the electric vehicle "SAKURA".
Refreshed employee uniforms for the first time in 15 years (supervised by Tesima Design Studio, produced by TS Design). Celebrated the 60th anniversary of Oilmatic and launched various advertising campaigns.
Selected as a 2025 Health Management Excellence Corporation (small and medium-sized enterprise division). : Refreshed employee uniforms for the first time in 15 years (supervised by Tesima Design Studio, produced by TS Design). : Celebrated the 60th anniversary of "Oilmatic". : Launched various advertising campaigns and more.
Selected as a Healthy Management Excellence Corporation 2026 (small and medium-sized corporation division).
In commemoration of the 60th anniversary of the Oilmatic automatic temperature adjustment device for machine tools, an original 110 yen stamp featuring a commemorative logo was produced. The stamp will be used for future mailings to customers and business partners. Since its inception in 1965, the company has reflected on its journey of addressing the challenges of "temperature and precision" in manufacturing, and will continue to strive for improvement in technology and service.
Kanto Seiki announced it will exhibit at the 33rd Japan International Machine Tool Fair (JIMTOF2026) at Tokyo Big Sight from October 26 to 31, 2026. The exhibition marks 60 years since the birth of Oilmatic and features the concept “Temperature. Precision. Beyond — Together.”
Kanto Precision Machinery will participate in the 33rd Japan International Machine Tool Fair (JIMTOF2026) held from October 26 to 31, 2026, at the Tokyo International Exhibition Center. The company will showcase temperature control products that use low-GWP and natural refrigerants, including the debut of the coolant-based Oilmatic "Gny2200A", as well as six models from the Oilmatic and Purematic series and related products. The company will also provide comprehensive temperature control solutions from customized support to post-installation after-sales service.
Kanto Seiki will exhibit at JIMTOF2026, held at Tokyo Big Sight from October 26-31, 2026. With the key concept "Temperature and Precision. Creating Beyond Together," we will introduce temperature control solutions that combine environmental performance and high precision. We will display products using low-GWP refrigerants and natural refrigerants, as well as the first-time exhibition of the coolant oil automatic "Gny2200A," and propose comprehensive solutions from custom support to after-service.
Kanto Seiki Co., Ltd. has declared two stars in the 'SECURITY ACTION' promoted by the IPA. Following this declaration, the company intends to strengthen its preparedness against cyber attacks and information leaks, and to continue improving its information security measures.
Kanto Seiki hosted five students from Gunma University Faculty of Science and Engineering as part of its PBL education program on August 19-20. The students learned about product roles and problem‑solving processes in manufacturing through factory tours and discussions. The company plans to further strengthen collaboration with local universities and continue developing talent for manufacturing.
Kanto Seiki hosted an internship at Maebashi Industrial High School for three days from August 18 to 20. Students toured the manufacturing site and gained hands‑on experience under the guidance of employees. The company will continue to value the development of future talent and community engagement, and will advance initiatives to convey the allure of manufacturing.
Kanto Seiki Co., Ltd. will be closed company-wide from Thursday, August 13 to Sunday, August 16 due to summer vacation. Inquiries about products during the closure will be accepted and answered on business days. Support channels and various contact information are provided.
The renovation of the cafeteria at the headquarters factory (Maebashi City) has been completed. LED lighting was adopted, and the interior was refreshed with a warm, wood-grain-based design and an open layout. It has become a space that can be used not only for lunch but also for communication, rest, and meetings.
Kanto Seiki Co., Ltd. will sponsor the 70th Maebashi Fireworks Festival, held on August 8, 2026, as a Gold Sponsor. The event will take place along the Tone River, featuring an ultra-wide Star Mine with a launch range of 800 meters, among other fireworks. The company says it will contribute to the development of regional industry and the revitalization of Maebashi through its manufacturing activities.
