| 2004-01 |
January, 2004 : P.R.A. established. : simultaneously signed an agency agreement with Comdel Inc. |
| 2004-01-19 |
株式会社P.R.A.を設立 |
| 2004-01-19 |
同時に米国コムデル社との販売及び修理代理店契約を締結し、業務を開始 |
| 2004-01-19 |
Established in : 19th January, 2004 |
| 2010-11 |
仙台支店を開設 |
| 2010-11 |
November, 2010 : Sendai office established. |
| 2011-02 |
九州支店を開設 |
| 2011-02 |
February, 2011 : Kyushu office established. |
| 2011-07 |
品質マネジメント国際規格「ISO9001:2008」認証取得（本社・第２工場） |
| 2011-07 |
July, 2011 : Chiba head office ISO9001-2008 certified. |
| 2012-04 |
本社を移転 |
| 2012-04 |
April, 2012 : Chiba head office building relocated. |
| 2012-08 |
大阪支店・サービスセンターを開設 |
| 2012-08 |
August, 2012 : Osaka S.C. established. |
| 2015-12 |
経営革新計画を申請し採択 |
| 2015-12 |
December, 2015 : 経営革新計画(Innovation management plan) was approved. |
| 2016-07 |
高周波整合器の開発をテーマとし平成27年度補正ものづくり補助金採択 |
| 2016-07 |
静電吸着用高電圧電源開発をテーマとし平成28年度ちば元気づくり助成事業採択 |
| 2016-07 |
July, 2016 : ものづくり補助金(manufacturing subsidy) in 2015 was approved. Theme : Matching network development. |
| 2016-07 |
July, 2016 : ちば元気づくり助成事業(Chiba genki-dukuri subsidy) in 2016. Theme : Electrotatick chuck(ESC) power supply development. |
| 2016-09 |
業務拡張に伴い本社近隣に第二工場を新設 |
| 2016-09 |
September, 2016 : Due to business expansion, Second Factory established near Chiba head office. |
| 2017-02 |
公共財団法人 ひまわりベンチャー育成基金採択 |
| 2017-02 |
February, 2017 : Public Interest Incorporated Foundation “Himawari venture fund” was approved. |
| 2017-04 |
自社開発製品の量産体制構築をテーマとし平成28年度補正ものづくり補助金採択 |
| 2017-04 |
April, 2017 : ものづくり補助金(manufacturing subsidy) in 2016 was approved. Theme : Building a mass production system of original products. |
| 2017-06 |
SEMICON JAPAN2017の出展をテーマとし平成29年度ちば元気づくり助成事業採択 |
| 2017-06 |
June, 2017 : ちば元気づくり助成事業(Chiba genki-dukuri subsidy) in 2017. Theme : .Exhibition to SEMICON JAPAN 2017. |
| 2017-07 |
品質マネジメント国際規格「ISO9001:2015」認証取得（本社・第２工場） |
| 2017-10 |
名古屋支店を開設 |
| 2017-10 |
October, 2017 : Nagoya office established. |
| 2018-01 |
自社製の静電吸着用高電圧電源が千葉ものづくり認定製品に認定 |
| 2018-01 |
January, 2018 : 千葉ものづくり認定製品(Chiba manufacturing qualified product) in 2017 was approved. |
| 2019-05 |
大阪支店・サービスセンターを移転 |
| 2019-05 |
May, 2019 : Osaka office relocated. |
| 2021-10 |
名古屋支店を移転 |
| 2021-10 |
October, 2021 : Nagoya office relocated. |
| 2022-03 |
資本金を2000万円に増資 |
| 2022-03 |
March, 2022 : Increased capital to 20 million yen. |
| 2024-04 |
兼松PWS株式会社の子会社となる |
| 2024-04 |
April, 2024 : Became a subsidiary of Kanematsu PWS Ltd. |
| 2024-05 |
代表取締役交代：坂本勝己が取締役CTOに就任、池端隆が代表取締役に就任 |
| 2024-05 |
May, 2024 : Changed Representative Director. : Katsumi Sakamoto, Representative Director, appointed as Director CTO. : Takashi Ikehata, Director, appointed as Representative Director. |
| 2025-01 |
January, 2025 : Changed Representative Director. : Takashi Ikehata, Representative Director, resigned. : Yoshikiyo Tobe, Director, appointed as Representative Director. |
| 2026-01 |
代表取締役交代：池端隆が退任、戸部喜清が新たに代表取締役に就任 |
