Company Information

President’s Message

Toru Mizutani

RYOKO Co., Ltd. was established in 1964 by Mitsubishi Rayon (now Mitsubishi Chemical) and Shinko Plastics as a manufacturer and distributor of acrylic resin products. With a focus on the manufacture and sale of RYOKO skylights, the top brand of industrial lighting windows, the company has undergone numerous transformations over the years, merging some businesses and winding down others, but throughout those more than fifty years, we have continued to satisfy the needs of our customers and the demands of the times. In 2017, we started a new page in our history as a member of the Mitsubishi Chemical Group. I would like to express once more our sincere appreciation for your continued patronage and warm support over the years.

We have a diverse range of businesses in addition to our Skylights Business. These include the Raw Materials and Products Business, which distributes formed plastic materials and environmental-friendly products, the Chemical Products Business, which handles the Acrysirup and grout products that support infrastructure maintenance and repairs, the Acrytec Business, Japan’s top supplier of acrylic panels for aquariums, and the Acrymirror Business, which supplies safe, lightweight mirror products that offer an alternative to glass. We will continue to contribute to society by realizing “KAITEKI”* in all of our business activities.

*KAITEKI means “a sustainable condition which is comfortable for people, society and the Earth, transcending time and generations.” It is an original concept of the Mitsubishi Chemical Holdings Group that proposes a way forward in the sustainable development of society and the planet.

From a starting point of “Monozukuri” that faces environmental and social issues squarely, everyone at RYOKO will strive to provide products and services that are “reassuring, safe, and reliable” from our customers’ perspective in a timely manner, and to become a “company with a presence” that meets the expectations and confidence of our customers. We look forward to your continued guidance and support into the future.

President and CEO
Toru Mizutani