Company Outline


Our company has manufactured products for nuclear industries for a long time since the company establishment by means of the precise machining technology of metalwork made of stainless steel and other metallic material. In addition, the newest machining center and NC lathe are introduced at early stage in response to the customers’ needs. We are continuing education of ourselves to respond the request for machining of any metallic material not only for non-ferrous metal and steel but also heat resistant alloy such as stainless steel and inconel.
Careful surface finish with high precision and reliability cultivated by the manufacture the products for nuclear industries is appreciated by the customers in many fields, for example, we gain the favor of customers for electric parts and automobile parts. Furthermore, we provide the consistent manufacture services with design, fabrication and assembling of the equipment as well as test & inspection services such as precise dimensional measurement, metallography and tensile test.


Name Toho Engineering Co., Ltd.
Establishment December 1981
Capital 36 M Yen
Shareholder Nuclear Fuel Industries, Ltd. 100%
Representative President, Representative Director Yoshiaki Itou
Address 7-5, Kawahara-cho, Izumiotsu-city, Osaka, Japan
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TEL +81-725-22-3363
FAX +81-725-22-2391
Number of Employees 70 persons
Business Contents Precise Metalwork
 ・Electric parts, Precise metalwork parts
 ・Specific tools & Jig
 ・Design & Manufacture of Equipment
 ・Inspection device for Nuclear use
 ・Production of Ceramics
 ・Welding of Plate
 ・Non-Fuel Bearing Components
 ・Transportation Container
Test & Inspection
 ・Tensile Test
 ・Precise Dimensional Measurement
 ・Vacuum Heat Treatment
Nuclear Fuel Components
 ・Grid / Spacer
 ・Plenum Coil Spring
 ・Nozzle / Tie plate
 ・End Plug
Main Customers Nuclear Fuel Industries, Ltd.
Sumitomo Electric Industries, Ltd.
Related Company Nuclear Fuel Industries, Ltd.


September 1998 ISO9001 (Tokai Works)
November 2001 ISO14001 (Tokai Works)
February 2004 OHSAS18001 (Tokai Works)
July 2007 EHSMS (as a joint certification of ISO14001 and OHSAS18001)(Tokai Works)


December 1981 Establishment as a manufacturer of mechanical working mainly for stainless steel in Izumiotsu-city Osaka Japan
May 1985 Capital participation by NFI (35% Capital by NFI)
January 1990 Increase of NFI capital up to 55%
April 2003 Increase of NFI capital up to 69.4%
April 2013 Acquisition of Engineering Precision Co. Ltd.(EPCO) , Increase of NFI capital up to 84.7%
March 2019 Increase of NFI capital up to 100%
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