| 1962-02 |
Founded February 1962. |
| 1968-07 |
Established Shinko Calculation Service Co., Ltd. in Shiba Nisshuku Bacho (now Toranomon), Minato-ku, Tokyo, with the primary purpose of contracting calculation work using electronic computers and drilling inspection work, and related dispatch services, with a capital of 2 million yen. |
| 1968-07 |
Established July 1968. |
| 1972-04 |
Changed the company name to Hiratsumi Calculation Co., Ltd., simultaneously acquiring from Daiichi Calculation Co., Ltd. the businesses of computer operation management, computer program development, and drilling inspection work, and transferring employees to our company. |
| 1982-04 |
Commenced sales of Mitsubishi Electric products' personal computers. |
| 1983-01 |
Acquired the data entry business from Sun Data Service Co., Ltd., and transferred employees to our company. |
| 1983-06 |
Signed a franchise agreement for personal computers with Japan IBM Sales Co., Ltd. |
| 1984-04 |
Established Hiratsumi System Technology Co., Ltd. with the primary purpose of technical calculation and engineering services. |
| 1989-05 |
Acquired the system development business from Daiichi SoftTech Co., Ltd. and transferred employees to our company; acquired the data entry business from Shinsei Co., Ltd. SoftTech and transferred employees to our company. |
| 1990-10 |
Established Hiratsumi System Business Co., Ltd. with the primary purpose of selling and maintaining small and medium-sized computers and other information equipment. |
| 1993-04 |
Established Hiratsumi System Service Co., Ltd. with the primary purpose of data entry services. |
| 1997-09 |
Capital of 68.5 million yen. |
| 1997-10 |
Registered our shares as listed securities with the Japan Securities Dealers Association. (Currently listed on the Tokyo Stock Exchange Standard Market.) |
| 2003-07 |
Commenced sales of the production management system 'Factory-ONE Digital Factory' by Ex Manufacturing Co., Ltd. |
| 2003-07 |
Sales of Factory-ONE Digital Factory, a production management system by EX Manufacturing Co., Ltd., commenced. |
| 2004-06 |
Commenced sales of the parts procurement system 'VSS-Pack' specialized for the automotive industry. |
| 2004-06 |
Sales of VSS-Pack, a parts procurement system specialized for the automotive industry, commenced. |
| 2004-10 |
Renamed to Rihito Systems Co., Ltd. |
| 2005-10 |
ISO27001/JISQ27001 certification obtained: Aerospace Engineering & Solutions Division. |
| 2005-12 |
JIS Q 9100:2016/JIS Q 9001:2015 (ISO 9001:2015) certification obtained: Aerospace Engineering & Solutions Division. |
| 2008-01 |
Signed exclusive dealer agreements with Dassault Systèmes for CATIA, ENOVIA, and DELMIA. |
| 2016-06 |
Converted to a company with an Audit Committee. |
| 2017-03 |
ISO27001:2013/JISQ27001:2014 certification obtained: System development related departments and others (subsequently expanded certification scope). |
| 2019-04 |
Signed a partnership agreement with Genexus Japan Co., Ltd. |
| 2022-02 |
Signed a partnership agreement with OutSystems Japan Co., Ltd. |
