RIKEN
Company Profile

RIKEN KOGYO Inc.

Industry Leader
For the first time in over 50 years, Riken Kogyo., Ltd, succeeded indeveloping snow protection fence from steel.
We have contributed to the safety and economic support of winter roadtraffic in Hokkaido, Tohoku and Hokuriku districts by measures against
snow, such as snowstorms and blows on the road.
In 2018, the number of extended snow fence installation reached 1,100
km in total, becoming Japan's leading company.

Snow Fence
Road traffic network in north has been developed day by day. It is the most important
lifeline that occupies a major position in our lives. Snow protection fence will protects roadfrom harsh snow and wind harm.
Snow protection fence, which is commercialized by taking advantage of valuable dataobtained from rigorous research and development, wind tunnel experiments and field
experiments, is a crystal of technology that protects our lives.
RIKEN Kogyo will provide a safe and comfortable life through a snow protection fence.

History of RIKEN

1948
Currently RIKEN Co., Ltd. andRIKEN Shoji Co., Ltd. areestablished as Hokkaido Sales
Offices based on RIKEN and started
sales of RIKEN products.

1961
Has developed locking crossscrew, patented in six countries
worldwide. Launchedcommercialization as RIKEN
cross-bolt.

1955
Establish current
RIKEN KOGYO Inc.
while Shin Riken Kogyo
merges with Daido
Steel Co., Ltd.

2002
Established Snowand Ice ResearchInstitute for survey
and research onmeasures againstsnow dam

1962
Participated in blow offfence development testin Hokkaido
Development Bureau,
construction machineshop.

In 1971, Riken participated in blow off fence development test in Hokkaido
Development Bureau, Construction Machine Shop. In 1944, succeeded indeveloping steel snow fence for the first time in industry, and obtained
patents. Started commercialization and sales. Celebrated 63rd anniversary
in 2020, snow fences installation have reached 1,100 km. History ofRIKEN KOKYO's business may be said as the history of snow fences.

1983
Succeeded in developmentof "stand-alone main pillar
folding flap fence" snow
fence . Obtained a patent.
Started commercializationand sales.

2014
Introduce new technology for snow
protection to road managers in Eastern
Europe and Central Asia in “Japan Road
Maintenance Management (A)” course inJapan.
2014
Registered steel pipe
pile driving bracket"R_link" in NETIS.

2004
Succeeded indeveloping "snowprotection type snowfence", joint with
Hokkaido Institute ofTechnology.

2014"Main column joint fixation method to steel
pipe piles" ZIG "received NETIS'sevaluation, accepted value while certificatedas useful technology for design comparison.

2015"High-performancesnow fence" received
NETIS's ex post
evaluation and acceptedvalue end (VE)

1995
Opened head office in Otaru-Shi, Zeniibako,
Hokkaido as part of its 40th anniversary.
Relocated headquarters along with completion ofShinchi snowstorm reproduction wind tunnellaboratory, product inspection site, and productwarehouse.
1996
Succeeded indeveloping industry's
first interlocking liftingsnow fence. Obtained apatent. Started
commercialization andsales.

1992
Succeeded in developing"full retractable snow
protection fence" inconsideration of landscape.
Started commercializationand sales.

2005
Developed wing typesnow protection board
using aluminium "SnowBlade". Started sales.

2003
Developed industry's first high-performancewooden fence for snow protection, joint with
Hokkaido Forestry Research Institute as
Ministry of Agriculture, Forestry and Fisheries
Research Advancement Project. Acquired utility
model right jointly with Hokkaido.

2003
Succeeded in developing a"high performance snow
fence", joint with Hokkaido
Institute of Technology.
Obtained patents. Started
commercialization and sales.

1989
Constructedwind tunnellaboratory toreproduce
snowstorms

1968
For the first time inindustry, we succeeded indeveloping steel snow
fence and obtained patent.
Started commercializationand sales.

2010
Developed foundation
concrete block for
windproof and snow
fence. Started
commercialization andsales.
2008
Registered "Automatic storage
type high-performance snow
protection fence" and "Existingsnow protection fence typeautomatic build up and storage
method" in NETIS.

2016
Obtained patent for"fitting nut combination
for cross bolt".

Linked to The
History ofSnow Fenceof Japan

2017
Contracted to manufacture snow fences
and set up work under the JICA Project
for Capacity Development for Road
Disaster Measures in Kyrgyzstan. Snowfence installed on Bishkek-Osh road.

2017
Implemented NEDO commissioned
project "Development of wind turbine
type snow protection fence using windblowing snow", joint with Tohoku
University Research Center for Future
Science and Technology

2018
Obtained patent for "snowremoving device" that prevents
snowflake by energizing theheater with electric power
generated by solar cells.

2012
Registered"Multifunctionalnoise barrier" inNETIS.

2018
Obtained patents for "Method
for manufacturing wire ropewith resin wire, resin wire
winding type and wire rope withresin plug".
2018
Celebrated 63rd
anniversary, snow
fences have reached1,100 km.

Management Philosophy
Snow damage
preventionSense ofmission

Cooperation
andgrowth○Our basic policy is to prevent snow damage on cold road traffic
networks, and by providing technologies and products that makepeople's lives safer and more comfortable, we contribute to society.
○We challenge high goals and build a more vibrant corporate culture.
○We maintain kindness and integrity, love nature and value ourenvironment.

Sustainability
As a Road Traffic Safety Product Manufacturer, Riken Kogyo
working on products development with its main target as
follows,
According to [Sustainable Development Goals (SDGs)]"3.6 Halve road traffic accident casualties""9.1 Develop a sustainable and robust infrastructure thatsupports economic development and welfare""11.2 Provide access to sustainable transportation systems
through improved traffic safety"

Social Contribution
Interest in "industrial heritage" which has contributed to themodernization of Japan has increased in recent years, one of themis Japanese railway heritage which boasts a history of 138 years.
The designation such as important cultural properties and railway
memorials also increased, and the railway heritage is now lively.
Some of things are lucky to be protected as a historical heritage,
but in other side there are also many things that are forgotten.
And since Japan's snow protection fence started from the railroad,
RIKEN KOGYO cooperated with NPO Hokkaido Railway Culture
Preservation Association, as a part of social contribution activities
and actively participating on protection and restoration project of
the railway cultural heritage and exhibition railroad car.

Wind Tunnel
Riken Kogyo's wind tunnel experimental facility can reproduce snowstorm byscattering model snow in the wind tunnel.
We will create a scale model of snow fence, local topography and reproduce
visibility obstacles, blowing pool and snowstorm situation, then propose the mosteffective anti-snow measures.
Linked to The
Wind Tunnel

PIV
PIV (particle image velocity) is an optical fluid measurement method that canobtain the instantaneous velocities of multiple points in flow areas without
direct contact. It is possible to analyze the flow of wind snow around the snow
protection fence in a short time precisely, by shooting high speed phenomena,
in slow motion mode using high speed camera and digitize with computer.
We introduce PIV into our wind tunnel experimental facility and conduct daily
research and development aiming to realize a snow-resistant fence withhigher performance.

Weather Survey
It is necessary to collect and analyse local weather data in order to propose the optimum
snowfall fence for places where snowstorms are occurring.
Riken Kogyo has many fixed-point weather observation instruments and mobile weather
observation vehicles.

Linked to The
Weather Survey

Products
We analyse local weather conditions and analyse the results of the windtunnel experiment to propose the optimum snow protection fence.
There are hundreds of models that can be proposed.

Foundation productWe also develop products that improves workability and shorten construction periodof snow fence foundation work, such as
Main joint connection fixing method to steel pipe pile "ZIG"
Steel pipe pile implementation bracket "R-Link"
Concrete Block Foundation for Windproof FenceTraffic Safety
Light guiding type gaze guidance marker, that makes driver recognize "line".
It makes easier to check curves and shoulder`s position, and improve traffic safety.
It also a human friendly product, that prevent glare by a structure without direct view to LED, anddoes not influence people with blue light.

仮写真
Cross Bolt
Cross bolt is the origin of Riken Kogyo`s research and development.
Instead of one bolt with right and left threads cut off, cross bolt tighten with one nut withright-handed thread and one nut with left-handed thread.
It is a bolt that does not loosen against any vibration, and loosens when you want toloosen it.

Linked to The
RIKEN crossbolt

Spindle
RIKEN spindle is a structure that moves while rotating along wire rope`s groove.
There are various application methods such as power generation and removal of foreign
matter attached to wire rope by rotationally moving.
It is also easily to add gaze guidance function to wire rope because it is possible toimplement resin wire that emit light to wire rope`s grooves in a short time.

Environmentally-friendly Products
Due to climate change in recent years, abnormal weather is now considered to become
normal.
To suppress further climate change and adapt to climate change, We are developing
environmentally friendly products use renewable energy.
We are researching and developing new measures against snowfall such as reduces snow
removal cost by utilizing wind power generation, solar power generation, underground heatand snow melting around the snow protection fence.

Overseas
We began accepting JICA training in Japan in 2014 and continuing to introduce Japan's latest antisnow technology to road administrators in Eastern Europe and Central Asia.
In 2017, we set up a snow protection fence at the Bishkek - Osh Road Too - Ashuu Pass which is also
being the main road of the Republic of Kyrgyz through ODA technical cooperation project.
From now on, we will expand Japanese anti-snow fences to the world.

Linked to The
RIKEN’s
Russian site

【Head office】
3-263-7 Zenibako、Otaru-shi、Hokkaido、Japan
TEL：(0134)62-0033 FAX：(0134)62-0088
URL：http://www.riken-kogyo.co.jp/
E-mail：info@riken-kogyo.co.jp【Tohoku Office】
1-10-13 Furukawa、aomori-shi、Aomori、Japan
TEL：(017)735-1888 FAX：(017)735-2511
E-mail：rk-tohoku@rapid.ocn.ne.jp

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RIKEN KOGYO Inc.