Toward a future without ﬂood damage

RA world-ﬁrst Innovation!
Permeable Concrete Laying PanelAt Dotcon, we create a world
freefrom water damage!
1

Introducing Tatsuya Ozawa-Towards a future without ﬂood damage -TATSUYA OZAWA
Representative and Chairman & Craftsman
at Ozawa Group, a concrete pumping company
Age 19：Engaged in concrete pouring work
Age 24：Founded Ozawa Sogyo Co., Ltd.
“No.1 company in the concrete pump truck industry in Tokyo”

Develop concrete-related products by leveraging our many years of experience.
Ecosuruan environmentally friendly precursor agent

Tenshi no Hane

Akuma no Hane

which mix ready-mixed concrete without waste, andetc,,
And because he is in the industry, he realized that there is a lid on the underground.
Believingthat urban areas paved with asphalt and concrete are the cause of climate change,
hedeveloped Dotcon, a concrete product that allows the earth to breathe.

2What is Dotcon?!

Dotcon realizes a “ﬂood-free future” !
Permeable Concrete Laying Panel with Holes!
Retains the beneﬁts of concrete while enabling water permeability!

Product Material: Recycled PPFlowing water tunnel shape
Wire mesh guides

Dimensions: 900mm x 900mm

when loaded

Area: 0.81 m²
wire mesh

Height: 97mm

900mm

Plate Thickness: 2.5mm
Weight: 2.76kg
Number of Holes: 18
Hole Size: 65mm
900mm

97mm

Height of flow tunnel is 50 mm(half the height of the product)world patent

PCT international application JP2022/8191
PCT international application JP2022/8192
Patent No. 6982356/No. 7028421
No.7028422/No. 7276793 No. 7289177
Trademark No. 6522226/No. 6522270
Design No. 1722513

３Severe climate change
in the world4

Climate change surrounding the earth

Temperature rise

The global average temperature has risen by

1.09℃ compared to pre-industrial levels,from 1850 to 2020, and is predicted to increase by 3.3 to 5.7°
C by the end of this century.

Year : 1850 - 2020

1.5

+ 1.09 C

0.0

1850

2020
[Changes in global average temperature]

Source: PCC Sixth Assessment Report (2021)

5

Climate change surrounding the earth

Sea level rise
Global sea levels are expected to rise by up to82cm by 2100

Sea level rise[sea level rise]

Maximum82cm

1968-2005 Avg.

2081-2100 Avg.
[year][Prediction of changes in sea level until 2100]
Source: IPCC Fifth Assessment Report

6Climate change surrounding the earth

Changes in precipitation patterns
It was announced that the number of global meteorological disasters, such as storms,
ﬂoods, and droughts, has increased

5Times in the past 50Years

Additionally, other data like the following have also been released.

[Impact of global weather hazards from 1970 to 2019 ]Economic losses fromweather-related disasters

00.5Trillion

Increase to1.5 trillion
dollars

1Trillion
world meteorological organization（WMO）

7

Climate change surrounding the earth

Increase and Enlargement of Typhoons
The strength and development of typhoons are greatly inﬂuenced by sea water temperature.
The cycle of rising air temperatures leading to increased sea water temperatures,and consequently more typhoons, results in a signiﬁcant increase in disasters.

[Compation of Typhoons Between the Present and the End of the 21st Century]
Increase of Strong Typhoons
byPresent

Increase of Increase in Precipitation Due to Typhoons

6.6%

11.8%

by

Present

End of the21st Century

End of the21st CenturyIncrease in the Radius of Strong Wind Areas

10.9%

byPresent

End of the21st Century

Source: Ocean and Earth information site JAMSTEC BASE NICAM
andsupercomputer simulation results

8

Climate change surrounding the earth

Severe water shortage
Due to the eﬀects of global warming, the disparity in precipitation is widening, andmore than 40% of the world population, totaling
are suﬀering from water shortages.

4.6billion people,

Face water shortage40%
3.6 billion
people1 in 4 people sufferfrom water shortage

If it continues,
It’ ll be,,Present

yaer:2050[ Proportion of Water Shortage in the World Population ]Source: United Nations Information Center9permeable pavement

Porousconcrete

Porousasphalt

There are many problems& Not popular10PorousConcrete

PorousAsphalt

・Difﬁcult to construct
・A blockage occurs
・Brittle
・Material cost is high・Not level
・Causes of the heat island phenomenon
・Short lifespan・Construction locations are limited11

We'll solve various

Environmental problemsof the World!

12Permeability and Water Storage

透水率 100%

100% permeability

Test results by Japan Rainwater Harvesting and Inﬁltration Technology Association
雨水貯留浸透技術協会による試験結果

One panel can store
14ℓ of water
It's possible to temporarily store and inﬁltrate approximately
250ℓof water per parking space area
using a specialized concrete panel.

Parking Space Water Storage Capacity

Approximately one bathtub full13

Heat Island Countermeasure
Paving with asphalt or concrete
Ground gets covered, leading toan increase in air temperature andthe Heat Island phenomenon.

Prevents heat from solar radiationfrom being stored inside the concrete,
allowing the heat to dissipate.

AverageTemperature
Difference

1.2℃ cooler

Maximum
Temperature
Difference

2.4℃ cooler

Does not trap heat14

No water slope required
Typically, parking lots are constructedwith a 2-3% gradient without prior notice.

Disadvantages of Water GradientIn the case 5m

Q.Why is a gradient necessary?

difference of elevation
10cm~15cm

A.Concrete and asphalt are impermeable>A gradient is needed to5m

direct watar to the roads.

permeates on the land, eliminating the need for water gradients!

The idea is to handle rainwater
on one's own property,
potentially eliminating water damage.
15Utilization for infrastructure

Normal Slopes

××Greening is not possible
Can't drain water

Slope
Protection

Slopes when using
Drainage of water through holes
Can also allow water to percolate

Can be greened

×

Ground anchors
cannot be driven

Earth anchors can be driven
into the ground×

No habitat for insects
and other small animals

Can provide habitat for insects
and other small animals
High afﬁnity with biodiversity

16

Utilization for infrastructure×Concrete seawall

Loss of natural river environments

×××Riverbed andRiverbank Protection

When used in rivers
Preservation of Natural River Environments
Maintains the strength of concreteHas the strength of concrete

Concrete retains its strength

Decrease in water quality

Improving water quality

The water ﬂow is monotonousand there is little habitat.

Plants don't grow

Diverse water ﬂows
Abundant habitats
Holes allow plants
to proliferate naturally

17Cost reduction

Source : Nikkei Crosstech

Ready-mixed concrete prices
will increase significantly from 2020to2022!
Dotcon will reduce concrete usage by the panel amount!
In addition, expensive water catch basins andinﬁltration trenches are reduced, leading to cost savings!

Concrete
Suitable for Heavy Vehicles

Suitable for Heavy Vehicles

×Permeability

Concrete cost
18%Cost Reduction→

Approximately
180,000 JPY

Approximately
150,000 JPY

Permeability

18

Cost reduction

Undergroundreservoir

Construction cost

30% cost reduction→

Undergroundreservoir+ Underground reservoir

Dotcon requires
no major
effort to install!

DotconConstruction

Difﬁcult Easy
+ asphalt or concrete

Costexpensive cheap

Reduction of waste
soil volume

overburden

Shortening ofconstruction period19

Design

Trowel Finish

Exposed Aggregate
FinishBrushed Finish

Stamped Concrete

Concrete
Enhancing Design ThroughFinishing Techniques!

Solar Light

Utilization of Holes
Infinite Possibilities!

MarblesGravelOphiopogon japonicus

Pebbles

Goldcrest

Tile Chips

CarStop/pillar20

Construction method
1 Graveling and compaction.

Gravel is spread and pressed down as a base for the foundation
as in the case of normal concrete placement.

3 Connect and place Dotcon

Lay out the Dotcon connected like a puzzle according to the shape of theconstruction area. Arrow guides are provided.

2 leveling

Crushed stone should
be virgin material,
recycled material isacceptable, but not too ﬁne.

To ﬁnish Dotcon to the speciﬁed height, sand and other materials are spread and leveled.

4 Lay out wire mesh or rebar

Spot the wire mesh in line with the marks on the guide.
No spacers required. Simply line up along the guide to increase concrete strength.

21※150 pitch wire mesh is used, but the diameter of the reinforcement should be adjusted according to the application.

5 placing of concrete

Concrete mix is easier to ﬁnish witha harder concretewith a strength of 24-27 slump value of about 15

When placing concrete, we recommend covering the panels with 5 mm to 1 cm of ready-mixed concrete.
The surface is ﬁnished with a trowel (propeller) or surfer to create a surface.

6 Tap the dots and drop them.

The head of the hole is faintly visible on the surface.

7 Hole correction with attachments completion

When the surface strength of the concrete dirt ﬂoor is reached,tap off the dots with a hammer. (The pieces may or may not be picked up.)
The attachment will clean it up later, so it is OK if some holes are made.

Dotcon special attachments are used to remove the surface
and clean up the surface. Attachments are consumables.
As a rule of thumb, use one for every 50 panels.

Anyone with concrete
constructionexperiencecan perform the work.

22Construction
example200 ㎡

23

Construction
example24

Construction
example50 ㎡

25

Construction
example26

Construction
example27

Construction
example28

Construction
example29

Concrete from a Feng Shui perspective
Do modern houses tend to be down on their luck?
Modern houses tend to cover the entire site with concrete and turn the exterior into a parking lot.
This makes it diﬃcult for the land to breathe, and the overall luck tends to be sluggish.
On the other hand, land covered with plants and trees is also bad in terms of Feng Shui.

The land should be full of sunshine and moderately moist
The earth can breathe, which improves the overall luck of the house.
A feng shui book from the Edo period states, "Land is the root of all things.
Therefore, it is important that the land be full of sunshine and moderately moist,and that one should not live in a land where plants do not breathe. This Dotcon is a good idea that solves this problem at once.

Feng Shui beneﬁts of water permeability
Feng Shui is the wisdom of our ancestors to balance and improve our luck.

Land is bad luck if it is dry or muddy. Dotcon are the solution to this balance.
Land that has gained the right amount of moisture is the base for supporting the fortune of a house.

Feng Shui beneﬁts of round shape (dots)
The round shape is an attribute called "gold.
It connects "water," the rain of blessings from the heavens, and "earth," the power of the earth,and plays the role of raising the luck of money.

30

will bring luck to your home.

We asked a feng shui teacher to read Dotcon. Depending on the direction in which Dotcon is installed, the fortune will change.

north west

northbusiness prosperity

The direction that governs business prosperity.
The round shape itself brings business prosperity.

luck with money
This is the direction that governs money fortune.
This is the best direction to go with Dotcon.

Women's Luck

It governs the luck of women.
Put tile chips in the Dotcon toprotect your house from calamity!

Men's LuckIt governs the luck of menʼs.
Put white cobble in the Dotcon
to protect the house from calamity!

It enhances money fortune, intelligence, and marital love.
When the sun is not shining well,
you can put lights or luminous stones in the Dotcon.

westsouth west

nort heast

intelligenceluck with money
conjugal loveeast

luck at study
luck at work

The direction that governs work and study.
Plant a plant in the Dotcon to increase your luck!

south east

beautysouth financial
luck
Use round shapes to reduce waste and increase fortune.
Putting colorful marbles in the Dotcon increases artistry and beauty!
Planting plants to harmonize the home is also a good idea.

good match

The direction that governs good marriages.
Plant a plant in the Dotcon for good encounters!

Supervision: Feng Shui Master Sayako
https://twitter.com/sayako_ryousei
https://coconala.com/users/820261

31Patents and trademarks acquired

On Application

PCT international application JP2022/8191
PCT international application JP2022/8192

32

Construction was decided
in the Republic of Indonesia.
After two presentations at the Embassy of the Republic of Indonesiaand an inspection of the construction site,
we actually went to Indonesia and completed
the presentation to the Indonesian Ministry of Land,
Infrastructure, Transport and Tourism.

Construction was decidedon a cornerof a residential area under development!
Presentation to the Indonesian Ministry of Land,
Infrastructure, Transport and Tourism
Construction site inspection

Presentation to Embassy

33

Democratic Republic of Congo
Presidential Advisor's Inspection

ODA Project!

Urgent infrastructure development andenvironmental measures are essential

Japan's three-year public-private partnershipfor Africa's economicdevelopment,
Japan will provide a total of$30 billion in public and private Scale of Funds

34

Planned Exhibitions

2024/2/1

BBVA in Mexico2024/5/15-16

SusHi Tech TOKYO 2024

One of the largest startup events in Asia

アジア最大級のスタートアップイベント。

2024/8/14-16

World of Concrete

ASIA in Shanghai Participation

35

Achievements in Japan
Received the Good Design Award

Ministry of Land, Infrastructure,Transport and Tourism,
KantoRegional Development Bureau(Constructed for display)

Niigata Transport

Ebina Branch &Yonezawa Branch (Scheduled forconstructed)
Planning to register with NETIS

NETIS …（New Technology Information System）
Gain an advantage when bidding in Japan36

PatentDotcon
pending
Version Upgrade
2 Proposal❓

There will be no more holes
1
Ironless is possible
The holegets smaller
2 Increased strength
Increased water storage capacity
Scheduled for production Stayin late 2024
tuned!

37

Supporting team

Cooperation
Cooperation byby aa generalgeneral trading
trading company
company
withwith global
global operations
operations

Cooperation
Cooperation throughthroughstart-upstart-up support
supportKanon Nishitani

Nobumitsu Fukai
Navigator for Startup-Japan
Secretary-General,

CEO/ Founder at MediaBrain Group, Inc.
Student at Harvard University
Selected as the 2021 Asia Representative
forthe Harvard Asia International Relations Project

General IncorporatedAssociation for SDGs
Support Author of 'SDGs Business Model
Encyclopedia:Social Issues as Business

Opportunities' and'SDGs for Elementary SchoolStudents' (bothpublished by KADOKAWA)

Development team
Akira Hosoda
Professor,
Graduate School of UrbanInnovation,
Yokohama NationalUniversity
Tanaka Prize,
JapanSociety of Civil Engineers Award

Yasuhiro Koda
Nihon University,
Faculty ofEngineering Professor,
Department ofCivil Engineering,
ConcreteEngineering
Laboratory Doctor of Engineering

Cooperation with inspection agencies
Center for Better Living

Association for Rainwater
Storage and Inﬁltration Technology38

480,000 views

Youtube2,500,000 views

2,370,000 views

300,000 views

Other Dotcon movie

39

Tatsuya Ozawa Chronology
2020/7/15

2023/2/4 4,610,000views2023/3/8 2,750,000views2023/4/30 3,000,000views【それって !? 実際どうなの課】【中卒 40 歳・年商 12 億円経営者の1 年間密着ドキュメント vol.1】【中卒 40 歳・年商 12 億円経営者の1 年間密着ドキュメント vol.2】【中卒40歳・年商12 億円経営者の1 年間密着ドキュメント vol.3】（日本テレビ）アキラ100% が圧送工に挑戦

Comedian Challenges Pressure Workers

One year documentary on Tatsuya Ozawa

One year documentary on Tatsuya OzawaOne year documentary on Tatsuya Ozawa

2023/11/14 1,080,000 2023/11/14 810,000 2023/7/24 1,000,000 2023/7/8 1,380,000
views
views
views
views

2024/3/28【中卒40 歳・年商12 億円経営者 【中卒 40 歳・年商 12 億円経営者の 【街録 ch～あなたの人生、 【中卒 40 歳・年商12 億円経営者の1年間密着ドキュメントvol.4】の1年間密着ドキュメントvol.6】 1 年間密着ドキュメント vol.5】
教えて下さい～】One year documentary on Tatsuya Ozawa One year documentary on Tatsuya Ozawa

Tell me about your life

One year documentary on Tatsuya Ozawa【初の自伝発売】

Autobiography released

2024/5/7
760,000views 2024/2/27 1,500,000views 2024/2/281,500,000
views【令和の虎 CHANNEL】 【事業再生の虎 CHANNEL】
Tiger Funding

Tiger Funding【Ozawa Group YouTube】【ABEMA Prime】

2024/6/21【BAYFM 森久保祥太郎の今週わず
ゲスト出演】
Radio Appearances40

〜Our Vision〜
In recent years, there has been a rapid increase in water-related disasters due toglobal warming.
For example, the October 2019 Typhoon No. 19 causedwidespread ﬂooding, prompting theconcrete industry to rethink its practices.
Theuse of concrete and asphalt to cover the earth's surface is considered acontributing factor tosuch disasters.
The challenge then became to merge the seemingly opposite functions ofconventional concreteand permeability to prevent water damage.
There's a beliefthat if all the world's roadbed materials were replaced with a product like
Dotcon,it could dramatically improve the global environment and ensure a brighter futureforchildren.
The aim is to create a future free from water damage with Dotcon.

PUMP MAN, Inc.
CEO/ Founder, Craftsman Tatsuya Ozawa

41Creating a Flood-Free Futurewith