Businesses, Core and Proprietary Technologies

ROKI TECHNO was founded in 1978 as a company specializing in the manufacturing of high-precision, industrial filters.
We have ever since been undertaking the development and production of filters, filter housing, and ozone systems as a Group company and supporting the growth of industry as a whole.
We are also currently focusing on products targeted at consumers as well and developing the IKOR Series by drawing on our core and proprietary technologies which have been refined over many years.

We work to create products that lead to customer satisfaction with the "Filtration Business," "System Solutions Business," and the "Consumer Business" as the pillars of our company.

Filtration Business

We develop, manufacture and sell filter products and housing products used in manufacturing processes in each field.

Electronics
Market
  • Ceramic Capacitors
  • Flat panel Displays
  • Secondary Batteries
  • Recording Media
  • Other Electronics
Fine Chemicals
Market
  • High-Purity Chemicals for Electronics
  • Photosensitive Materials such as Photoresist
  • Functional Inks
  • Polishing Slurry
  • Other Fine Chemicals
Chemicals
Market
  • Inorganic Chemicals
  • Organic Chemicals
  • Plastic Raw Materials
  • Other Chemicals
General
Industry Market
  • Household Products such as Cosmetics
  • Detergents
  • Eyeglass Lenses
  • Paint/Ink
  • Lubricants
  • Other General Industrial Products
Food and Beverages
Market
  • Alcoholic Beverages
  • Soft Drinks
  • Starch Sugar
  • Seasoning
  • Other Food/Beverage

System Solutions Business

We develop, manufacture and sell ozone devices and water treatment systems used in manufacturing processes in each field.

Electronics
Market
  • Cleaning of LCD Panel
  • Cleaning of Wafer
  • Metal Oxide Film Formation
General
Industry Market
  • Film Surface Modification
  • Bleaching of Fiber
Food and Beverage/
Pharmaceutical
Market
  • Sterilization of Manufacturing Water
  • Cleaning and Sterilization of Filled Containers
  • Chamber Sterilization
  • Sterilization of Foodstuff
Water Treatment/
Environment
Market
  • Sterilization of various Cooling Water
  • Rain Water Reuse
  • Deodorant and Bleaching of Industrial Waste Water
  • Sludge Reduction
  • VOC Removal
  • NOX Removal

Consumer Business

Planning consumer products in Japan.

Consumer Business
  • IKOR

Management Function

Company name ROKI GROUP CO.,LTD.
Representative Chairman, President and CEO Shin Ito
Address 6-20-12 Minami-Oi, Shinagawa-ku, Tokyo 140-0013 Japan Map
Establishment January 17, 2013
Capital JPY50,000,000
Settlement September
Employee (Group as a whole) Number of employees 528
Average age 39.01 years old
Average length of service 10 years
(As of the end of September, 2020)
Banks Mizuho Bank, Ltd. (Omori Branch)
The Bank of Mitsubishi UFJ, Ltd. (Omori-Ekimae Branch)
Sumitomo Mitsui Trust Bank, Limited (Tokyo Business Department)
Sumitomo Mitsui Banking Corporation (Mitsui Branch)
Training / Recreation Facilities

Execution Function

Company name ROKI TECHNO CO., LTD.
Representative Chairman, President and CEO Shin Ito
Address 6-20-12 Minami-Oi, Shinagawa-ku, Tokyo 140-8576 Japan
Establishment December 12, 1978
Capital JPY1,284,080,000
Ownership The 100% owned by ROKI GROUP CO., Ltd.
Settlement September
Business Development and manufacture of various industrial precision filtration filter products, filter system related equipment, ozone generator, water treatment system, general consumer water purifier, humidifier etc
Locations Head Office:Map
6-20-12 Minami-Oi, Shinagawa-ku, Tokyo 140-8576 Japan
Yokohama Monozukuri Center:
1-1-40, Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa 230-0045
Hokuriku Works:Map
2066 Ogake, Namerikawa-shi, Toyama 936-0802
 Hieda Production Department:
 40 Hieda Kamiichi-machi, Nakaniikawa-gun,
 Toyama 930-0362
Kyushu Works:Map
548-24 Hiyoshi Hirokawa-machi, Yame-gun, Fukuoka 834-0111
Malaysia Plant:Map
Plo 550, Jalan Keluli 3, Kaw.Perindustrian Pasir Gudang,81700 Pasir Gudang, Johor, Malaysia
Company name ROKI TECHNO MARKETING CO., LTD.
Representative Chairman and CEO Shin Ito
President and COO Makoto Okazaki
Address 6-20-12 Minami-Oi, Shinagawa-ku, Tokyo 140-0013 Japan
Establishment October 2, 2017
Capital JPY100,000,000
Ownership The 100% owned by ROKI GROUP CO., Ltd.
Settlement September
Business Selling various industrial micro filter cartridges, filter system, ozone generators and water treatment systems in Japan.
Locations Head Office:Map
6-20-12 Minami-Oi, Shinagawa-ku, Tokyo 140-0013 Japan
Tokyo Sales Office:Map
Mitanittodaibiru 2F, 3-11-36 Mita, Minato-ku, Tokyo, 108-0073 Japan
Toyama Sales Office:Map
Meiji Yasuda Life Toyama Ekimae Building 7F,
1-1-12 Shintomi-cho, Toyama-City, Toyama 930-0002
Nagoya Sales Office:Map
Sumitomo Life Nagoya Building 2F,
2-14‐19 Meiekiminami, Nakamura-ku, Nagoya-City, Aichi 450-0003
Kobe Sales Office:Map
Concordia Kobe 13F,
3-1-7 Isobedori, Chuo-ku, Kobe-City, Hyogo 651-0084
Fukuoka Sales Office:Map
Nippon Life Hakata Ekimae Second Building 7F,
4-1-1 Hakataekimae Hakata-ward, Fukuoka-City, Fukuoka 812-0011
Company name ROKI GROUP International Pte. Ltd.
Representative Chairman and CEO Shin Ito
President and COO Hiroyuki Hosoda
Address 60 Paya Lebar Road #12-30, Paya Lebar Square, Singapore 409051 Map
Establishment July 21, 2010
Capital SGD 1,800,000
Ownership The 100% owned by ROKI GROUP CO., Ltd.
Business Sales of overseas industrial precision filtration filter products, filter system related equipment, ozone generator, and water treatment system
Address 6-20-12 Minami-Oi, Shinagawa-ku, Tokyo 140-0013 Japan Map
Establishment April 1st, 2014
Business Sales of overseas industrial precision filtration filter products, filter system related equipment, ozone generator, and water treatment system
(Territory: China, Taiwan, Europe and others)
Company name ROKI S&S Malaysia Sdn. Bhd.
Representative Chairman Hiroyuki Hosoda
President Casper Leow
Address N-10-12, Level 10, First Subang, Northern Tower, Jalan SS15/4G, 47500 Subang Jaya, Selangor, Malaysia Map
Establishment April 4, 2012
Capital MYR 1,000,000
Ownership The 100% owned by ROKI GROUP International Pte. Ltd.
Business Sales of overseas industrial precision filtration filter products, filter system related equipment, ozone generator, and water treatment system
(Territory: Southeast Asia)
Company name ROKI S&S Korea Co., Ltd.
Representative Chairman Hiroyuki Hosoda
President Shinichi Babasaki
Address B-2509 Daesung D-polis Knowledge Industry Center,606 Seobusaet-gil Geumcheon-gu, Seoul, Korea 08504 Map
Establishment October 28, 2013
Capital KRW 200,000,000
Ownership The 100% owned by ROKI GROUP International Pte. Ltd.
Business Sales of overseas industrial precision filtration filter products, filter system related equipment, ozone generator, and water treatment system
(Territory: South Korea)
Company name ROKI S&S Americas,Inc.
Representative Chairman and President Hiroyuki Hosoda
Address 21081 S. Western Ave., Ste. 290-B, Torrance, CA 90501 Map
Establishment July 30, 2014
Capital USD 200,000
Ownership The 100% owned by ROKI GROUP International Pte. Ltd.
Business Sales of overseas industrial precision filtration filter products, filter system related equipment, ozone generator, and water treatment system
(Territory: USA, Canada, Latin America)
Company name TROIKA JAPAN CO., LTD.
Representative Chairman, President and CEO Shin Ito
Address Mitanittodaibiru 2F, 3-11-36 Mita, Minato-ku, Tokyo, 108-0073 Japan Map
Establishment October 8, 2003
Capital JPY 50,000,000
Ownership The 100% owned by ROKI GROUP CO.,LTD.
Settlement September
Business Sales of design gift products, water purifiers, humidifiers, Nonwoven Masks and so on for general consumers.

Our core and proprietary technologies for filters

Liquid filtration is generally based on technology of separating solids from liquids. We have been refining this technology to such extent that enables us to remove all unwanted particles and contaminants, which are larger in size, while allowing the smaller pigments and desired components to pass through the filter. This is called classification that constitutes our core technology. Our classification technology has been adopted and used by our customers worldwide as an essential technology for the production of indispensable everyday products.

Note: In May 2006, ROKI TECHNO was selected by the Ministry of Economy, Trade, and Industry of Japan as one of the most outstanding 300 SME’s due to this technology innovation.

Our core and proprietary technologies for ozone systems

In semiconductor manufacturing process, the presence of traces of metal ions in cleaning solutions can cause problems and defects.
ROKI TECHNO’s innovative design of placing double quartz tube system in the discharge unit of our ozone generators enables us to produce a cleaner ozone gas without these metallic contaminants. This pioneering technology has been acknowledged and recognized by the semiconductor industry.