Our business / Group companies

Our Business / Group Companies

During the 1960s, Japan was in the midst of a period of high economic miracle. The Tokyo Olympics triggered the government’s policy on high economic growth and the implementation of large-scale infrastructure development. Hence, our company was founded in 1964 when the first Tokyo Olympic Games were held in Tokyo.
Started from post-installed anchors which were used when attaching objects to concrete, we develop, manufacture and sell construction related products such as drill bits and fasteners. Today, we continue expanding our business widely with the keywords of “safety, security, and environment”. Our new business includes; seismic retrofitting, solar related construction management, manufacturing and sales of alcohol detectors and FRP sheets.
Our main business, the fastening business,
develops, manufactures and sells construction materials.
It develops original installation methods and manage on-site construction by utilizing the know-how accumulated over many years.
We develop, manufacture and sell construction and engineering related materials such as construction anchors.
Fastening Related

In addition to planning and development, raw material procurement, manufacturing and sales of construction materials such as drills and fasteners, we also have other construction tools and anchor tensile testing machines. We aim to create a consistent quality and offer the “total fastening system”.
Among them is “All Anchor”, which is said to be synonymous with our company. It is our most well-known product that is sold and used all over Japan for more than 50 years.

Engineering Related

Various structures created during the period of high economic miracle in 1960s or what we call the “construction rush” has been deteriorating over time and has reduced durability against natural disasters such as earthquakes, etc.. At our company, we are developing and managing installation methods to protect various structures such as schools, hospitals, highways, railways and piers by applying fastening technology such as post- installed anchors and utilizing them for seismic retrofitting work.

List of related Group Companies
Functional Materials Business
The functional materials business consists five segments:
alcohol detector-related and FRP sheet-related,
electro-hydraulic tools-related and electronic board-related,
and packaging / logistics equipment-related segments.
We not only provide products and services to the construction industry but also in logistics, electrical and various industries.
Alcohol Detector

We develop, manufacture and sell alcohol detectors that measure the alcohol concentration in exhaled breath. In addition to transportation companies such as trucks, buses, and taxis, alcohol detectors have been used in the railway, ship, and aviation industries in recent years to eradicate traffic accidents caused by drinking alcohol and to advocate health management.

List of related Group Companies
FRP Sheet

We manufacture and sell UV curable FRP sheet also called as “e-sheet”. This product is a prepreg sheet made by impregnating glass fiber with epoxy acrylate (vinyl ester) resin and is cured by irradiation with ultraviolet fluorescent lamps. It is used in a wide range of scenes, such as indoors and soaked places, and repairing iron and concrete structures such as footbridges.

Electric Hydraulic Tool

The electric hydraulic tools are manufactured by IKK Co., Ltd., one of our many groups of companies under the brand name of “DIAMOND”. With the product concepts of “cutting”, “drilling”, and “bending”, we also offer a variety of products such as rebar cutters and benders.

List of related group companies
Electronic Board

Electronic board related products are manufactured and sold by Suikow Co., Ltd. and Urawa Denken Co., Ltd. Electronic components such as semiconductor chips are embedded inside various home appliances and electronic devices, and they are mounted on printed circuit boards. As a feature of both companies, Suikow Co., Ltd. is good at manufacturing printed circuit boards themselves, and Urawa Denken Co., Ltd. is good at mounting electronic components on printed circuit boards.In addition, Koyo is also involved in the design, development, and manufacturing of printed circuit boards as well as membrane switches and other related products.

List of related group companies
Packaging / Logistics Equipment

Seiko Sangyo Co., Ltd. is in charge of packaging and logistics equipment. Seiko Sangyo imports various machines from Europe, such as plastic vacuum forming machines and shrink pack machines that seal objects with a transparent film, and sells and maintains them in Japan. And also manufacture plastic molded products with a vacuum forming machine.

List of related group companies
Group of Companies
IKK Co., Ltd.
Business:Manufacture and sale of electric hydraulic tools centered on small rebar cutters and bender products
Address:396-59 Ashitaka, Numazu City, Shizuoka Prefecture 410-0001
TEL:055-922-8811  FAX:055-922-2880  Google Map  >
Suikow Co., Ltd.
Business:Integrated production and sales such as circuit design and mounting of electronic printed circuit boards
Address:1028-7 Nishifukai Sakai, Nagareyama City, Chiba Prefecture 270-0107 Nagareyama Industrial Park
TEL:04-7154-4851  FAX:04-7154-4558  Google Map  >
ISM International Co., Ltd.
Business:Import of post-installed anchor-related products, sales in Japan and overseas, and pull tester rental and sales
Address:1028-14 Nishifukai, Nagareyama City, Chiba Prefecture 270-0107
TEL:04-7178-2626  FAX:04-7178-2678  Google Map  >
San-O Co., Ltd.
Business:Assembly of post-installed anchors, etc.
Address:1028-41 Nishifukai, Nagareyama City, Chiba Prefecture 270-0107
TEL:04-7153-3561  FAX:04-7154-6843  Google Map  >
E-Optimize Co., Ltd.
Business:IT-related development, construction, system sales, etc.
Address:3-10-16 Minami-Nagareyama, Nagareyama City, Chiba Prefecture 270-0163
TEL:04-7192-6638  FAX:04-7178-6661  Google Map  >
Urawa Denken Co., Ltd.
Business:Mounting processing of electronic printed circuit boards. Manufacturing and sales of electronic devices
Address:287 Nakanobayashi, Nishi-ku, Saitama City, Saitama Prefecture 331-0057
TEL:048-624-3651  FAX:048-624-3673  Google Map  >
Seiko Sangyo Co., Ltd.
Business:Manufacture, import and sale of plastic and paper molding machines and packaging machines
Address:1-7-23 Horinouchi, Suginami-ku, Tokyo 166-0013
TEL:03-3313-8431  FAX:03-3318-4791  Google Map  >
Nippon Mechanic Co., Ltd.
Business:Design and processing of precision pipe shafts and processing of various metal parts
Address:84-1 Fukuda, Ami-cho, Inashiki-gun, Ibaraki 300-1156
TEL:029-889-1076  FAX:029-889-1224  Google Map  >
WDS Co.,Ltd.
Business: Sales and development of IoT devices and Edge AI facial recognition products
Address: 2-22-1 Nishinippori, Arakawa-ku, Tokyo 116-0013
TEL:03-6822-7439  FAX:050-3730-7708  Google Map  >
Shinko Nylon Co., Ltd.
Shinko Nylon Co., Ltd.
Business:Manufacture and sale of synthetic resin three-dimensional network structures such as culvert drainage materials for civil engineering
Address: 5-4-25 Segawa, Minoh City, Osaka 562-0045
TEL:072-721-2391  FAX:072-723-2191  Google Map  >
Koyo Co., Ltd.
Koyo Co., Ltd.
Business: Various key units, plastic molded parts, sheet metal, PCB/FPC (including component assembly), nameplates, membrane switches, hardware, and software development
Address:2-12-8 Higashiueno, Taito-ku, Tokyo 110-0015 Yoshiya Building 4F
TEL:03-3834-5301  FAX:03-3834-5302  Google Map  >
Business:Manufacture of post-installed anchor products from Japan and sales in Japan and overseas
Address:2 Soi Phaholyothin 96, Prachatipat, Thanyaburi, Pathumthani, 12130, Thailand
TEL:+66(0)2516-9823-5  Google Map  >
Business:Commercialization of post-installed anchors and sales in Vietnam
Address:Lot 36, An Sinh Quarter, 016-CT2 Tay Ho Tay new Urban Areas, Co Nhue 1 Ward, Bac Tu Liem District, Hanoi City, 11917, Vietnam
TEL:+84(0)24-3959-0262  Google Map  >
Business:Broker of imported products and introduction of new products
Address:Room 7, 7F, No. 207, Dunhua North Road, Taipei City
TEL:+886(0)2-2718-8982  Google Map  >