ABOUT ROKI GROUP

Our History

  • 1978

    December
    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.

  • 1981

    January
    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.

  • 1984

    February
    Newly established the Hokuriku Plant 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
    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
    Established the Kyushu Business Division in Kurume City, Fukuoka Pref.

  • 1986

    February
    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

  • 1988

    March
    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
    The company annexed Nichiro Kogyo K.K. which was a subcontractor of the company.

  • 1989

    December
    Expanded the Hokuriku Plant as a mass production factory of the filter cartridge of capsule type.

  • 1990

    February
    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).

  • 1991

    November
    First booth at an exhibition (Chemical Plant Show) .

    December
    The company changed its trade name to the current ROKI TECHNO Co., Ltd.

  • 1994

    February
    The company registered itself as an over-the-counter company at the Japan Securities Dealers Association, and listed its shares at JASDAQ stock exchange.

  • 1996

    August
    The Yame Plant was certified for ISO9002, the international standard of the quality management system.

    November
    Established Shin-Nippon Ozone K.K. (then changed its trademark to ROKIENGI Co., Ltd.) as a subsidiary.

  • 1997

    August
    Consolidated the Kurume plant into the Yame Plant.

  • 1998

    July
    Moved the headquarters to Minami-Ohi, Shinagawa-ku, Tokyo.

  • 2000

    November
    The Hokuriku Plant was certified for ISO14001, the international standard of the environmental system.

  • 2002

    May
    The Yame Plant was certified for ISO9001: 2000, the international standard of the quality management system.

    October
    Established the Kyushu Sales Office to strengthen the sales in Kyushu area.

    November
    Opened a liaison office in Shanghai to strengthen the sales in Asian territory.

  • 2003

    February
    The company started to reform its management with MEBO, calling the year “the second foundation year”.

    July
    Since a complete parent company was established with MEBO, the company was delisted from the JASDAQ stock exchange.

  • 2004

    August
    Field research was started in the U.S. to strengthen the sales there.

  • 2005

    February
    Obtained the license of the piping construction (Tokyo municipal government) for the water supply pipe washing business.

    May
    The company was awarded the Selete Award 2005 by Semiconductor Leading Edge Technologies (SELETE) for its support of the next generation semiconductor development. The title of the development for which the award was given was “Development of Conductive Pad for Copper Electrolysis Grinding”.

  • 2006

    April
    Annexed the subsidiary, ROKI ENGI Co., Ltd.

    The Hokuriku Plant was elected as one of the “300 middle-scale companies which are active in manufacturing” by the Ministry of Economy, Trade and Industry.

    July
    Completed a training facility and recreation center "Karuizawa study center" in Karuizawa-machi, Nagano Prefecture

    September
    Expanded the Yame Plant for the second time in order to further promote the clean project.

  • 2009

    May
    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 Plant.

  • 2010

    July
    Audit and registering with the international standard ISO 14001 of the environmental management system through company wide integration

    Established a subsidiary company, ROKITECHNO SINGAPORE PTE.LTD. in Singapore.

  • 2012

    April
    Established a subsidiary company, ROKI S&S Malaysia Sdn. Bhd. in Malaysia Johor.

    June
    Renamed ROKI GROUP INTERNATIONAL PTE. LTD. from ROKITECHNO SINGAPORE PTE. LTD..

  • 2013

    January
    Established ROKI GROUP HOLDINGS CO., LTD. and built a holding system.

    October
    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
    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.

  • 2014

    April
    Established Yokohama Monozukuri Center in Kanagawa.

    July
    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.

    December
    Renamed ROKI GROUP CO., LTD. from ROKI GROUP HOLDINGS CO., LTD.

  • 2015

    May
    Established a sales office of ROKI M&S Malaysia Sdn. Bhd. in Kuala Lumpur, Malaysia, for further business expansion in Malaysia.

  • 2016

    March
    The Hokuriku Plant was certified for ISO 9001:2008, the international standard of quality management system.

    October
    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.

  • 2017

    January
    Reorganized sales offices and expanded to five (5) locations of Tokyo, Toyama, Nagoya, Kobe, and Fukuoka Sales Office.

    October
    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.

  • 2018

    May
    Acquired 100% of issued shares of TROIKA K.K.(Currently the TROIKA JAPAN Co., Ltd.) that became a subsidiary of ROKI GROUP CO.,LTD.

    September
    ROKI GROUP, ROKI TECHNO, and ROKI TECHNO MARKETING obtained the integrated certification of ISO 9001:2015, the international standard of quality management system.

    October
    Established ROKI S&S Korea Sales Office in Busan.

  • 2019

    February
    Established a new office of ROKI GROUP in Mita. ROKITECHNO MARKETING Tokyo Sales Office and TROIKA JAPAN moved to ROKIGROUP Mita Office.

  • 2020

    February
    The Hokuriku Works, the third production base in Japan, was newly established in Namegawa City, Toyama.
    The Kyushu Plant was renamed the Kyushu Works.

    March
    Renamed ROKI S&S Americas,Inc. from ROKI S&S America,Inc. and moved.