KOYO Co., Ltd.

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[Japan’s No.1 “Rebounding Spirit” – A precision spring manufacturer that surpasses customer expectations.]
We are proud of our more than 50 years of experience rooted and cultivated in “Higashi-Osaka, a city of technology”. Koyo was founded in Higashi-Osaka as a precision spring manufacturer, and for more than 50 years has been proposing and supplying high-quality, high-performance products that meet a wide range of customer needs, while always striving to foresee the times. Although springs are not a conspicuous product, they are used everywhere in the city and in various fields.

A spring is not a complete product by itself, but a component that functions only when it connects and supports other components. We believe that this is the same as connecting and supporting our customers and society through manufacturing.

Koyo will continue to make great strides by supporting the city and connecting it to safety and peace of mind.



“Connecting security. Supporting the city. Koyo Corporation has been in business for more than 50 years as a precision spring manufacturer in the city of Higashi-Osaka. During this time, there have been various technological advancements and market changes, but we have been able to propose and supply better products in order to meet the latest needs of our customers, We have been able to propose and supply better products to meet the latest needs of our customers.

In today’s constantly changing business environment, we must continue to grow further. To this end, we considered it necessary to share our corporate activities under a long-term strategy (what Koyo will look like in the future and what value we will provide) in a more easily understood manner. In anticipation of our 60th year since foundation, we have newly established Koyo’s long-term vision and VMV (Vision, Mission, and Values).


Koyo will pursue the spring fields of ” Connecting,” ” Fastening,” and ” Tightening,” and realize a safe and secure society by supporting people, towns, and lifestyles.

We aim to become a company that contributes to and supports society by considering the value of Koyo’s existence once again, drawing a vision of the future that we would like to realize, and using it as a guidepost to initiate “change” toward that realization.

Representative Director
Motoki Ishiwari


  • Corporate Name

    KOYO Co., Ltd.

  • Address

    4-3-19 Nunoichi-cho, Higashiosaka-shi, Osaka 579-8004, Japan

  • Established

    May 1966

  • Business Description

    Design, development and manufacture of precision  small springs Design, development, and manufacturing of thin sheet spring and metal stamping dies Assembly processing

  • Website

Management Philosophy


Being a company that contributes to society and is needed and appreciated, we believe it will lead employees’ and their family’s happiness. We will aim at realizing the prosperous society connecting society and people through manufacturing.

“Roppo-yoshi (Six way satisfaction)” is our philosophy which combines “good for the seller, good for the buyer, and good for the society” with the addition of “good for the creator, good for the earth, and good for the future.” We believe that a company can grow sustainably into the future only by providing value that satisfies not only customers and employees, but also society and the global environment.

Recentry Exhibition


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