History
~1980
December 1978
Nippon Roki K.K. (meaning Japan Filter Co., Ltd.) was founded in Sanno, Ota-ku, Tokyo. While selling hydraulic filters, the company started developing the filter cartridge for magnetic painting (complex depth filter cartridge), which was regarded difficult to develop with technologies available at the time.
January 1981
Completed the development of the filter cartridge for magnetic painting using the high classifying technology. It was first adopted by most Japanese magnetic tape manufacturers. It was then adopted by major magnetic tape manufacturers in Korea, Germany, the U.S., etc. It finally dominated the world market in a short period of time and became the resource of the company’s growth.
February 1984
Newly established the Hokuriku Works in Naka-Niikawa-Gun, Toyama Pref., and built a production system for depth filter cartridge of string wound type covering the total process from raw materials to final products.
December 1984
Moved the headquarters to Omori-Kita, Ota-ku, Tokyo
1985
We began developing our own capsule type filter and proposed to magnetic tape manufacturer.
June 1985
Established the Kyushu Business Division in Kurume City, Fukuoka Pref.
February 1986
Built a mass production plant of the high precision filter cartridge at the address above, with a clean room constructed for the first time in Japan. At the same time, the Kyushu Business Division was reorganized as the Kurume plant, where the company fully started the shipment of the filter cartridge of surface type for the medical and chemical industry in the U.S.
1987
Began developing a 7-set capsule type filter, start production and sales
March 1988
The company fully started shipping the filter cartridge of surface type for the domestic beer industry where draft beer became the dominant product after the so-called dry taste battle.
December 1989
Expanded the Hokuriku Works as a mass production factory of the filter cartridge of capsule type.
1990
February 1990
Constructed the Yame Plant in Yame-Gun, Fukuoka Pref. to fully start the production of the depth filter cartridge of winding type (non-woven fabric winding type).
December 1991
The company changed its trade name to the current ROKI TECHNO Co., Ltd.
February 1994
The company registered itself as an over-the-counter company at the Japan Securities Dealers Association, and listed its shares at JASDAQ stock exchange.
August 1996
The Yame Plant was certified for ISO9002, the international standard of the quality management system.
November 1996
Established Shin-Nippon Ozone K.K. (then changed its trademark to ROKIENGI Co., Ltd.) as a subsidiary.
August 1997
Consolidated the Kurume plant into the Yame Plant.
July 1998
Moved the headquarters to Minami-Ohi, Shinagawa-ku, Tokyo.
2000
May 2002
The Yame Plant was certified for ISO9001: 2000, the international standard of the quality management system.
October 2002
Established the Kyushu Sales Office to strengthen the sales in Kyushu area.
November 2002
Opened a liaison office in Shanghai to strengthen the sales in Asian territory.
February 2003
The company started to reform its management with MEBO, calling the year “the second foundation year”.
July 2003
Since a complete parent company was established with MEBO, the company was delisted from the JASDAQ stock exchange.
April 2006
Annexed the subsidiary, ROKI ENGI Co., Ltd.
The Hokuriku Works was elected as one of the “300 middle-scale companies which are active in manufacturing” by the Ministry of Economy, Trade and Industry.
July 2006
Completed a training facility and recreation center “Karuizawa study center” in Karuizawa-machi, Nagano Prefecture
September 2006
Expanded the Yame Plant for the second time in order to further promote the clean project.
May 2009
Expanded the Yame Plant to establish the production system in a mid-and long term perspective and aggressively introduced energy-saving equipment as an environment-friendly plant. With the expansion, the plant changed its name to Kyushu Works.
2010
July 2010
Established a subsidiary company, ROKITECHNO SINGAPORE PTE.LTD. in Singapore.
April 2012
Established a subsidiary company, ROKI S&S Malaysia Sdn. Bhd. in Malaysia Johor.
June 2012
Renamed ROKI GROUP INTERNATIONAL PTE. LTD. from ROKITECHNO SINGAPORE PTE. LTD..
January 2013
Established ROKI GROUP HOLDINGS CO., LTD. and built a holding system.
June 2013
ROKI TECHNO CO., LTD. has established ROKI TECHNO KOREA CO., LTD. in the Republic of Korea for the purpose of selling industrial filter cartridges, ozone generator and water treatment system.
December 2013
Company name of ROKI M&S Malaysia was changed from ROKI S&S Malaysia and ROKI M&S Malaysia starts as a production base as well.
April 2014
Established Yokohama Monozukuri Center in Kanagawa.
July 2014
Established a subsidiary wholly owned by ROKI GROUP International Pte. Ltd., ROKI S&S America, Inc. in Torrance, California, USA for business expansion and sales reinforcement in the Americas.
May 2015
Established a sales office of ROKI M&S Malaysia Sdn. Bhd. in Kuala Lumpur, Malaysia, for further business expansion in Malaysia.
March 2016
The Hokuriku Works was certified for ISO 9001:2008, the international standard of quality management system.
October 2016
Renamed ROKI S&S Korea Co., Ltd. from ROKI TECHNO Korea Co., Ltd. At the same time, changed a ROKITECHNO Co., Ltd. 100% owned subsidiary to a ROKI GROUP International Pte. Ltd. 100% owned subsidiary.
January 2017
Reorganized sales offices and expanded to five (5) locations of Tokyo, Toyama, Nagoya, Kobe, and Fukuoka Sales Office.
October 2017
ROKI TECHNO CO., LTD, established a new company “ROKI TECHNO MARKETING CO., LTD.” by company split which is responsible for sales of products in Japan.
And ROKI M&S Malaysia Sdn. Bhd., changed its name to ROKI S&S Malaysia Sdn. Bhd.
September 2018
ROKI GROUP, ROKI TECHNO, and ROKI TECHNO MARKETING obtained the integrated certification of ISO 9001:2015, the international standard of quality management system.
2020
February 2020
The Hokuriku Works, the third production base in Japan, was newly established in Namerikawa City, Toyama.
The Kyushu Plant was renamed the Kyushu Works.
March 2020
Renamed ROKI S&S Americas,Inc. from ROKI S&S America,Inc. and moved.
May 2020
Started manufacturing and sales of high-performance non-woven mask “IKORMASK” for general consumers.
October 2022
The Tokyo Sales Office, Toyama Sales Office and Nagoya Sales Office moved to their new addresses.
February 2023
Establishment of Osaka Branch Office of ROKI GROUP CO., LTD. in Osaka City, Osaka Prefecture.
Kobe Sales Office moved to the Osaka Branch Office and changed its name to Osaka Sales Office.
February 2024
ROKI TECHNO MARKETING CO., LTD. establishes Kagoshima Sales Office in Kagoshima City, Kagoshima Prefecture.
March 2024
Yokohama Monozukuri Center relocates and changes its name to Ota Monozukuri Center.
October 2024
Established a sales company, ROKI S&S Taiwan Co.,Ltd. in Taiwan to further expand sales in Taiwan and China.
October 2025
ROKITECHNO Co., Ltd absorbed and merged with ROKI GROUP CO.,LTD. , establishing ROKITECHNO MIRAI CO.,LTD. . The start of "the third founding period".
ROKITECHNO MARKETING CO., LTD. established a new Omiya Sales Office in Saitama City, Saitama Prefecture.
