| 1971 | RIPRO Corporation foundation year |
| 1982 | Developed a reef fish made of waste plastic |
| 1986 | First JIS certified factory in the industry |
| 1990 | Creation and development of Information Stake®. |
| 1991 | Good Design Award, Chairman’s Special Prize “Environmentally Friendly Design Award” |
| 1992 | Licensed as a waste recycler by Okayama Prefecture |
| 1995 | The 3rd Chugoku Region New Business Environment Special Award |
| 2000 | ISO9001 certification acquired |
| 2002 | ISO14001 certification acquired |
| 2005 | New company building and plant construction for headquarter of RIPRO Corporation |
| 2010 | Developed information transmitting sensor stake (i-RIPRO concept) |
| 2011 | Celebrated the 40th anniversary of the company’s foundation |
| 2014 | Picture book “Little Orca’s 5000 miles odyssey” published (Kibito Publishing) |
| 2015 | Industry’s first carbon footprint CFP certified product The Monozukuri Nippon Grand Award Chugoku Bureau of Economy, Trade and Industry Director-General’s Award Okayama Prefecture Bizen Citizen Bureau Director-General’s Award Business for Environmental Conservation |
| 2017 | Japan Resilience Awards – The Best Resilience Award Selected as one of the 2000 companies in the first phase of “Regional Future Leading Companies” by the Ministry of Economy, Trade and Industry |
| 2018 | Reduce, Reuse, Recycle (3R) Promotion Council Minister of Economy, Trade, and Industry Award Okavama Prefecture Environment Okavama Grand Prize Awarded (Recycling Society Formation Promotion Category) |
| 2019 | Registered as a machine tool dealer (Okayama Prefectural Public Safety Commission License No. 721130024764) |
| 2021 | Selected as one of the “300 flourishing Small and Medium Enterprises and Businesses” by the Ministry of Economy, Trade, and Industry |
| 2024 | Ripro’s survey nail qualified and passed for JIS(Japanese Industrial Standard)certification |
