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We give support for your company's difficult processes with our unified development, manufacturing and sales system! Inquiries to this Company Japanese

Electric Machinery and Instruments Manufacturing
Kumagai Electric Co., Ltd. 

*[Yubijin] (Bath Temperature-Retaining Cleaner) Place the unit into the bathtub and switch the power on. Every minute the pump circulates about 101 times to clean the water, and automatically adjusts the temperature to your liking. Because of its cleaning and anti-bacterial effects the water can be used for three to seven days without changing. This is an ecological product that gives not only heating expense savings but also reduces the number of times the bathtub has to be washed.
*[Otete & Anyo no Kotatsu] (Heater-Equipped Gloves and Socks) These products use micro-carbon fibers as heaters. Sturdy and flexible. Fingertips get cold easier than anywhere else; this product warms them right up. You'll notice the difference in warmth! This is the perfect item for riding a motorcycle or driving a car on a cold winter day, for skiing, mountain climbing, walking and other outdoor activities. When used inside the home they conserve on heating expenses.
*Product development and technological prowess using the contradicting components of water and electricity.
*Development strengths regarding water temperature management products using heaters and controllers.
*Sturdy, light, flexible and thin. Commercialization of products using micro-carbon fibers as heaters.
*Manufacturing know-how cultivated over the course of more than 40 years.
*Provision of water temperature management instruments to Tetra Japan & Spectrum Brands, a top ornamental fish supply manufacturer.
*Other Sunart brand products are volume sold at Tokyu Hands, Yodobashi Camera, and Bic Camera locations nationwide, and we also have long relationships with Nissen, Dinos, Benesse and other major mail-order businesses.
"Trust and Originality" This means nothing more than the securing of unwavering trust by satisfying customers and users with attractive products borne from Kumagai Electric's original technologies and unique know how. With "Trust and Originality" as our corporate philosophy we ask ourselves what products are truly needed by consumers and how we should reflect our company's uniqueness onto those products. It my desire to continue creating new values needed by the world. There are countless topics of discussion in this new age including handling of the environment at the global level and the creation of the cyclical society. For that reason we will boldly challenge ourselves in new areas, proactively research and develop new products, and consolidate the sensitivities and manpower of all of our employees.
Technical Area Information
Final Products  Products that Utilize the Commodity Items and Technologies Possessed
Bath Temperature-Retaining Cleaners (24-Hour Bath)Finished Products・Home Appliances
Heating and Temperature-Retaining HeatersFinished Products・Home Appliances
Heater-Equipped Gloves and SocksFinished Products・Household Goods
Foot WarmersHeater Units, Control Units・Home Appliances
Manufacturing Capabilities
Main Product Manufacturing Capabilities
*Bath Temperature-Retaining Cleaner "Yubijin": Monthly Production 1,000 Units
*Heating and Temperature-Retaining Heater "Wakashi Taro" Monthly Production 3,000 Units
*Ornamental Fish Heaters: Monthly Production 20,000 Units
Machinery and Equipment Possessed
Machine NameProcessing CapabilitiesNumber of Machines
Belt Conveyors55m/25m/16m/Other 11 Units
Ultrasonic Welders1,200w/15KHz 600w/20KHz2 Units
Spot Welders500ws8 Units
Riveting Machines6 Units
Automatic Brazing Machines1 Units
Lathes3 Units
Drilling Machines3 Units
Milling Machines1 Units
Electric Voltage and Current Measuring Devices5 Units
Automatic Dielectric Strength Voltage Meters3 Units
Oscilloscopes2 Units
Dotting Recorders2 Units
Digital Multi-Meters5 Units
Electric Scales4 Units
CAD1 Units
Main Product Manufacturing Capabilities
*Patents Regarding Bathtub Water Warming Devices: 2 *Patents Regarding Water Cistern Warming Devices: 5 *Patents Regarding Rice Cookers: 1
Main Product Manufacturing Capabilities
・ISO 9001  Acquisition:2008
・ISO 14001  Acquisition:2008
・JET Product Certification
Main Product Manufacturing Capabilities
We have the unified system, technology and manufacturing know-how for everything from product design and development to manufacturing and sales. We are capable of anything in terms of cooperative structures including those for OEM, tie-up manufacturing, and design-responsive assembly. We give support for particularly difficult processes and can offer help at any stage.
Company Infomation
Address 190-1, Nishi-Kyuhoji, Yao City, Osaka 581-0077, Japan
TEL +81-(0)72-992-6611
FAX +81-(0)72-993-7772
Representatives Yasumasa Kumagai
Date of Establishment 1965
Capital 30,000,000 yen
Number of Employees 35 people
Industry Electric Machinery and Instruments Manufacturing


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