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Inquiries

Please feel free to contact us for any question, request, consultation or request-for-quotation etc.

Please contact us by telephone, e-mail or fax. As it may take some time for our response, please call us if you expect our quick response.

In case of telephone, please call us
between 09:00 and 17:00 on weekdays.

Type of inquiryOrganization to contact
Plastic products Parts for electronic devices, parts for automobile, parts for OA device, etc. Sales Dept., Business Development Group
TEL:+81-3-6667-0718
Thin-wall high speed injection molding product for food and medical application. Sales Dept., Hiratsuka Business Group
TEL:+81-3-6667-0719
Industrial material products Magnet Sales Dept., Industrial Material Group
TEL:+81-3-6667-0621
Printed circuit board, carbon fiber, etc. Sales Dept., Industrial Material Group
TEL:+81-3-6667-0621
Automation device products Solenoid valve, valve, motorized valve, etc. Sales Dept., Industrial Material Group
TEL:+81-3-6667-0621
Batteries, power supplies Batteries, power supplies Sales Dept., Industrial Material Group
TEL:+81-3-6667-0621
Others Other than the above Administration Dept.
TEL:+81-3-5962-3901
Inquiries by FAX.
FAX +81-3-3527-2116
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Inquiries through Ryoka website.
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About battery power supply device
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  • Inquiries

Manufacturing and sales of plastic injection molding products.

Ryoka Kogyo Co., Ltd.

Manufacturing and sales of various automation control devices.

Nichiden Kogyo Co.,Ltd.

Sales of air conditioner, design, installation and maintenance of air conditioning facilities.

Ryoka Tech Co.,Ltd.

Manufacturing and sales of plastic injection molding products.

ryoka malaysia