History of Risu Kogyo Co., Ltd.

Company History

1953

April – Gifu Plastic Industry was founded in Kubomi, Gifu City, by its first president, Koei Omatsu.
June – The company’s first machine, a 2-ounce vertical molding machine, was installed.

1957

April – The “RISU” trademark was established.

1963

March – PVC pipe fittings were launched, marking the company’s entry into the construction and civil engineering materials business.

1966–1967

The “PLA-BUNE,” a plastic tub for plasterers, was launched.
The PVC pipe and fittings factory obtained JIS certification.

1971

April – Risu Kogyo Co., Ltd. was established.

1975

December – The head office was relocated to the Dai Gifu Building near Gifu Station in Kanda-machi.

1981

The Bottom Irrigation System was launched.

1983

The company obtained a construction industry license from Gifu Prefecture.

1984

Pool flooring was launched, marking the start of the sports materials business.

1988

May – Toshiyuki Omatsu was appointed President and Representative Director.

1989

March – The current “RISU” logo was established.

1992

April – “PLA-WOOD,” an imitation wood product, was launched.

1994

April – Nyloplast technology was introduced.

1997

April – Pool course ropes were certified by the Japan Swimming Federation.
September – The company obtained ISO 9001 certification.

1998

June – “PLA-WOOD” was certified as a Gifu Prefecture Recycled Product.

2002

April – Rainwater management systems were launched.
April – “PLA-WOOD” received Eco Mark certification from the Japan Environment Association.

2007

October – “RISU RAIN STADIUM,” a plastic rainwater storage and infiltration tank, was launched.

2008

March – “RISU RAIN STADIUM” received Construction Technology Review and Certification.

2012

March – The PVC pipe fittings business of Risu Kogyo Co., Ltd. was transferred to Toei Kanki Co., Ltd.

2013

March – Course ropes made with bio-based materials were launched.
April – “RISU RAIN STADIUM” was certified by the Association for Rainwater Storage and Infiltration Technology.

2014

March – “3E STEP” was certified as a Gifu Prefecture Recycled Product.

2017

July – Competition lane markers with industry-leading wave absorption performance were launched.

2018

March – Eita Omatsu was appointed President, and Toshiyuki Omatsu assumed the role of Chairman.

2019

January – The “Yawaraka Lane Marker,” the world’s first soft course rope, was launched.
August – “RISU RAIN STADIUM” was certified as a Gifu Prefecture Recycled Product.

2020

March – The company received a construction industry license from the Ministry of Land, Infrastructure, Transport and Tourism.

2025

June – The new “RISU RAIN STADIUM GT,” a next-generation plastic rainwater storage and infiltration tank, was introduced as a solution for flood control and localized heavy rainfall.