“Responding with quietly refined technology.”

“Responding with quietly
refined technology.”

With this philosophy at our core, we will continue to support Japanese manufacturing as a leading company in lamination processing.

With this philosophy at our core, we will continue to support Japanese manufacturing as a leading company in lamination processing.

Since our founding in 1969, Sanyo Kakoshi Co., Ltd. has focused on lamination processing technology as its core expertise.
We provide high-quality products across a wide range of fields, including building materials, packaging materials, and industrial materials.
Our product lineup meets diverse needs, featuring release paper, insulation materials, and barrier packaging materials.
In particular, our release paper—produced in a relatively low-competition market—has earned high recognition from customers both in Japan and overseas.

One of our core technologies is extrusion lamination, which supports a wide range of materials such as polypropylene, polyethylene, and specialty resins.
In particular, our lamination processing using additive-free homopolymer polypropylene resin is a rare technology in the industry and represents a key element of our company’s uniqueness.

Our high level of technology and stable quality are supported by an integrated in-house production system across two locations: the Saitama head office plant and the Yamagata plant.
By internalizing all processes—including wet lamination, slitting, sealing, and embossing—we ensure consistent quality and operational efficiency.
In addition, the Yamagata plant is equipped with environmentally friendly wet lamination equipment designed to reduce environmental impact and conserve resources, reflecting our commitment to sustainable manufacturing.

In 2019, our company became a subsidiary of Nippon Matai Co., Ltd. and joined the Rengo Group.
This partnership enables us to leverage the group’s procurement capabilities, technological development resources, and extensive sales network, allowing us to provide faster and more precise solutions to increasingly diverse market challenges.

「Responding with technology quietly refined.」
This philosophy has guided us since our founding. With the desire to share our technology and passion with more people, we have launched this website as a new platform for communication. In addition to product information, we will also share our dedication to manufacturing and the thoughts of the people behind our work.

「As a company that continues to grow through technological strength」 our manufacturing and sales teams will work together to contribute to the advancement of manufacturing and deliver even greater satisfaction to customers both in Japan and around the world.
While pursuing the optimization of delivery time, quality, and cost, we will actively engage in the development of environmentally conscious processing technologies and specialty-grade products, contributing to the realization of a sustainable society.

We sincerely appreciate your continued support.

President & Representative Director Masami Kato


As a pioneer in lamination processing technology,
Sanyo Kakoshi continuously pursues innovation and improvements in quality.

Centered on PP lamination technology,
we provide products that meet diverse needs through technologies such as
wet lamination and embossing.
Our mission is to deliver high-quality products to customers both in Japan and overseas.

As a pioneer in lamination processing technology,
Sanyo Kakoshi continuously pursues innovation and improvements in quality.

Centered on PP lamination technology,
we provide products that meet diverse needs through technologies such as
wet lamination and embossing.
Our mission is to deliver high-quality products to customers both in Japan and overseas.


Reliability

We place the highest priority on building trust with our customers and promise to consistently deliver high-quality products and services.

Innovation

By promoting technological innovation and continuously developing new technologies and products, we provide value that exceeds customer expectations.

Efficiency

We improve production efficiency and provide cost-effective products to support our customers’ business operations.

Sustainability

We promote environmentally responsible product development and contribute to the realization of a sustainable society.

Teamwork

Each employee works together and grows collectively, contributing to the overall development and success of the company.