About Us

Yasui Seiki and Mirewec Film

Discover Yasui Seiki: Where Exceptional Know-How and Ultra-Precision Manufacturing Meet in State-of-the-Art Custom Coater Design

For over 45 years, Yasui Seiki has been at the forefront of precision coating technology, specializing in the development of ultra-thin, submicron coatings essential for cutting-edge products. As a leading consultant, developer, designer, and manufacturer of coating machines, we have pioneered technologies that are indispensable across various sectors, including batteries, fuel cells, semiconductors, MLCC, polymer science, electronics, and photonics.

What distinguishes Yasui Seiki from other manufacturers is our dedicated R&D centers in Japan—Labo and Omura Research Center. Here, we engage in groundbreaking research in collaboration with major Japanese corporations and universities. The insights gained from these collaborations directly influence the design and functionality of our coating machines, ensuring they are not only innovative but tailored to meet the specific needs of our clients.

Our proprietary technologies, including MICROGRAVURE™, precision slot die, tungsten carbide lip slot die, magnetically driven rolls, and superheated steam dryers, are testaments to our role as inventors and leaders in the industry. At Yasui Seiki, we produce most precision parts in-house, achieving accuracies up to 1/1000th of a millimeter. This meticulous attention to detail and our comprehensive validation and verification processes allow us to create unique, harmoniously integrated coating machines that set the standard for performance and precision.

Yasui Seiki is more than just a manufacturer; we are creators of new technologies and architects of precision. We don’t simply assemble machines—we engineer them to perform with unparalleled precision, reflecting Yasui Seiki’s deep-rooted expertise and commitment to excellence.

Message from the CEO

April 2024

Commitment to Excellence: Prioritizing Customer Satisfaction, Advanced Technology, and Employee Well-being

In order to truly embody our management philosophy, all employees are continuously engaged in gathering information, conducting business, and maintaining the environment with vigilance every day.

The technology of coating, indispensable to Japanese manufacturing, is widely used across various fields and markets. We continue to innovate our unique designs and technologies centered around MICROGRAVURE™ and slot die, striving to meet customer demands with one-of-a-kind devices and aiming for ongoing growth. From meticulous device construction to after-sales service, our specialized staff thoroughly support our customers.

The realm of ultra-thin coatings is our forte, requiring advanced coating operation know-how. Through strong collaborations with our group companies, such as Labo, Co. Ltd. which acts as a research support organization, our one and only US branch and development support organizations like MIRWEC Coating and Yasui Seiki US, we continue to provide total coating solutions to customers worldwide.

Furthermore, we have set up a showroom inside the Labo and MIRWEC Coating, so please visit us and experience a different level of quality, suggestions and attitude.

Yasui Seiki Group

Yasui Seiki Group
Parent Organization Yasui Seiki Company, Ltd.
Founder Yoshinari Yasui
CEO Taku Kusano
Founded September 20, 1979
Locations Kanagawa, Japan, Nagasaki, Japan and Bloomington, IN USA
Customer Service 1(812)331-7194
November 1980 Yasui Seiki Company, Ltd. headquarters was established in Kanagawa, Japan
November 1986 Labo Co., Ltd. was established
February 1991 Yasui Seiki USA was established in Bloomington, IN USA
April 1994 Labo, Ayase R&D Center was established in Kanagawa, Japan
June 2001 Labo, Omura Branch was established in Nagasaki, Japan
September 2003 Acquired MIRWEC Film, Inc. from Mitsubishi Rayon, merged Yasui Seiki USA, and Yasui Seiki-MIRWEC was established
May 2006 Yasui Seiki Omura R&D Center was established in Nagasaki, Japan
June 2007 Yasui Seiki’s production plant #2 was built in Ebina, Kanagawa, Japan
October 2008 Yasui Seiki’s production plant #4 was built in Ebina, Kanagawa, Japan
December 2010 Yasui Seiki’s production plant #3 was completed in Omura, Nagasaki, Japan
October 2013 Yasui Seiki’s production plant #5 was completed in Omura, Nagasaki, Japan
October 2017 Yasui Seiki Omura R&D Center merged with Labo Co., Ltd.
September 2019 Yasui Seiki’s new headquarters building was completed in Ebina, Kanagawa, Japan.
October 2020 Taku Kusano was named the new CEO of Yasui Seiki Group
April 2021 Yasui Seiki’s production plant #6 was completed in Ebina, Kanagawa, Japan.

Yasui Seiki Facilities