Ryuki Engineering: Pioneering Environmental Solutions
Ryuki Engineering, a Japanese leader in environmental solutions, navigates market expansion and demographic
shifts under President Nishimura’s strategic guidance.
ment. Satoshi Nishimura, President
and CEO of Ryuki Engineering, embodies the company’s commitment
to using cutting-edge technology
to tackle pressing societal issues.

“Our mission and values
are to address the social
challenges of today’senvironment.”
Satoshi Nishimura, President& CEO, Ryuki Engineering
In the heart of Japan’s industrial
landscape, Ryuki Engineering
stands tall as a beacon of innovation and reliability. Specializing incrafting optimum environments
for solving production-related challenges, the company has carved aniche for itself in diverse sectors
ranging from dust collection to
dehumidiﬁcation and water treat-

Dust collector to process dust
from blasting in tunnel“With a 75% share of the domestic rental market for dust collectors in tunnel construction,” Mr.
Nishimura proudly states, “Ryuki
Engineering’s impact is palpable.”This market dominance reﬂects thecompany’s dedication to excellence
and its ability to deliver tailoredsolutions for complex projects.
Mr. Nishimura’s vision extends
beyond tunnel construction, as he
afﬁrms the company’s strategic

expansion into 13 other businesssegments. This progressive approach underscores Ryuki Engineering’s commitment to continuous growth and innovation.
In the face of Japan’s demographic challenges, including an
aging workforce and a contracting
domestic market, Ryuki Engineering remains resilient. Mr. Nishimuraemphasizes the company’s focus
on labor-saving technologies anddigital solutions to mitigate shortages in the construction industry.

ing Ryuki Engineering’s commitment
to societal well-being. This dedication to environmental stewardshipguides the company’s research andproduct development efforts.

ECO Clean LFP for PFAS treatment

Large dust collector(3,000 m3/min)“Our mission and values are to address the social challenges of today’senvironment,” he declares, highlight-

As the world evolves, Ryuki
Engineering stands poised to leadthe charge in pioneering environmental solutions. With a steadfast
commitment to innovation and aglobal perspective, the company
continues to shape a sustainable
future for generations to come.

www.ryuki.com/english

Tanaka Sash: Crafting SpecializedDoors for a Safer World
Tanaka Sash is pioneering
the specialized door industry, revolutionizing ﬁre prevention equipment with its
bespoke products and personalized business model.

“Our work is about morethan just doors; it’s about
creating meaningful
contributions to society
and embracing enduring
fulﬁllment.”

Yokohama MM21
Established over 100 years ago asa steel door manufacturer, Japanese ﬁrm Tanaka Sash became
the ﬁrst in Japan to develop andcommercialize a glass ﬁreproof
door. The company’s bespoke
products can be found in buildings throughout Japan, includingofﬁces, hospitals and hotels.
Tanaka Sash specializes in ﬁreprevention equipment such as aﬁre-proof door that automaticallycloses when its sensors detect aYasuo Takahashi, President,
Tanaka Sash Co., Ltd.
ﬁre. Tanaﬁre, the company’s ﬂag- proved efﬁciency of emergency
ship product, is a soft visibility ﬁre- assistance in the event of a ﬁre.
Since its inception, the Tanaﬁreproof door made from a combinaproduct line has expanded due totion of ﬁreproof glass and steel.
customer demand. Mr.
According to theTakahashi explains:company’s president,“The addition of speYasuo Takahashi,
cialized functions isthe product wenta response to clients’
through rigorous
speciﬁc needs, such as
testing and inspecthe level of heat resistion before launch totance or the level ofensure standardizadurability of the glass,tion. The resulting
even including soundproduct is a transprooﬁng functions.”
parent fireproof
It is this persondoor enabling swift
TANAFIRE (Firedoor
evacuations and im- with heat-resistant glass) alized approach to

Broadcast studio door
business as well as undertaking
the entire process from production to installation that Mr. Takahashi attributes to the company’ssuccess. Mr. Takahashi points
out: “Our services go beyond
just being a regular manufacturer. Even after the delivery of
our product we ensure proper
installation of the product andtake care of all the requirements
needed until the building is open
for the public to see.”www.tanakasash.co.jp

JGI Leads in Technology for Subsurface Exploration
JGI offers a variety of unique technology packages to create high-resolution subsurface
models for a myriad of applications, from resource exploration to carbon storage projects.
us at our ﬁngertips, but what lies
beneath the surface of the earth
and oceans is often unknown. Oneof the companies offering subsurface modeling is Japan’s JGI Inc.
Marine data acquisition“Our geophysicalexploration technology
packages provide a
digital twin of unknown
subsurface structure.”
Susumu Abe,
President, JGI Inc.
We are all used to having detailed maps of the land around

Structural exploration in urban
areas using Vibroseis

Seamless data acquisition
Founded in 1983, the company
specializes in 3D visualization
technology packages for a wide
range of applications, including oil
and gas exploration, disaster prevention, submarine hydrothermal
deposits exploration, geothermal
resource development, civil engineering, and CCS-CCUS (CarbonCapture, Utilization and Storage).
As company president Susumu
Abe says: “We have a variety ofexploration technology pack-ages that provide vertical andhorizontal subsurface resolutions
depending on the target, enabling
seamless data acquisition fromland to sea, especially in shallow
water areas.” JGI is also developing exploration techniques related
to CCS, a key technology in mitigating global warming. Mr. Abeexplains that JGI’s focus is ondelineating subsurface structures
for CCUS, monitoring changes in
CO2 plume behavior, and subsurface risk management required
for CCS-CCUS projects.
JGI is currently working withmultiscale 3D exploration technologies to address engineeringand seabed risk assessment in seabed geotechnical investigation foroffshore wind farms and CCS site
evaluation. In addition, JGI is pursuing the construction of an advanced
monitoring system, using complex
ﬁber optic sensing and massive
signal processing with AI.

3D visualization of subsurface
Mr. Abe reveals exciting
plans to leverage the company’stechnology to expand into themedical and space developmentﬁelds, adding further examples
to JGI’s company motto of “Visualization of All Targets.”
https://jgi-inc.com

Revolutionizing Agriculture with Microorganism Technology
Adoption of Kyowa Kako’s cutting-edge technologies will naturally result in a decreased reliance on chemical fertilizers.
international recognition for its effectiveness in converting organic waste
into nutrient-rich fertilizer.

“Combining ourexperience and expertisewith our passionate
young employees is astrong driving force.”Toshiharu Yoshimura,President, Kyowa Kako Co., Ltd.
Kyowa Kako, founded in 1959, has
emerged as a pioneer in revolutionizing agricultural practices through innovative microorganism technology.
“Our core value is to focus on thesoil and the related microorganism aswell as the environment around it,”says President Toshiharu Yoshimura,emphasizing the company’s commitment to sustainable agriculture. Kyowa Kako’s hyperthermophilic aerobic
composting technology has garnered

Institute of Environmental Microbiology

Highlighting the company’s impact on global waste management,Mr. Yoshimura recalls a meetingwith a French company seeking
insights into Japan’s advanced sewage sludge treatment methods.
“The U.S. and France recognizedthese issues and decided to change
their systems to incineration or tothe microorganism treatment of
the sludge,” he explains, underlining
the global shift towards sustainablewaste management practices.
Kyowa Kako’s innovative approach extends beyond waste management to address Japan’s agricultural challenges. With the country’s
self-sustenance rate hovering at58%, the company is spearheading
efforts to promote organic fertilizer
usage. “Japanese Prime Minister
Fumio Kishida stated that the use offertilizers from sewage sludge treatment in agriculture was necessary,”
highlights Mr. Yoshimura.
Discussing international expansion, there is an emphasis on
partnerships as a cornerstone of
Kyowa Kako’s growth strategy.
The company’s collaborations with
Brazilian counterparts aim to leverage its composting technologies for local agricultural growth.

Hyperthermophilic aerobic
composting plant“Through our hyperthermophilic aerobic composting technology,
we are trying to create a local
treatment plant to implement thecircular economy of the sewage
sludge treatment into agriculture,” the president explains.

Lettuce cultivation

Reliance on unsustainable classical chemical fertilizers is becoming less viable, even in developed
countries heavily reliant on crops
from agricultural nations. Kyowa
Kako’s sustainable solution oftransforming organic waste into
fertilizer safely and sanitarily, accessible even in developing countries without high-tech machinery,addresses global challenges oforganic waste management. The
company’s initiatives align withsustainable development goals(SDGs), fostering collaboration
between public and private sectors for a better future.

www.kyowa-kako.co.jp

GPSS Holdings: Empowering Futureswith Renewable Harmony
GPSS, founded by a visionary with a global perspective, pioneers energy solutions and fosters harmonious
collaboration with local communities, emphasizing sustainability and diverse cultural integration.

“At GPSS, we’re not justbuilding power plants;
we’re constructing afuture where energy
sustains life anddiversity thrives.”
Masaaki Mezaki, CEO,GPSS Holdings Co., Ltd.
It is fair to say that Masaaki
Mezaki, CEO of GPSS Group, has
led an interesting life. Eager toestablish his own company, his
professional career began at
Merrill Lynch, where, in his own
words, he “witnessed how theworld economy works.”
He soon became disillusioned,
however. “Banking,” he says,“is about expanding your own
interests at the expense of otherpeople’s.” After an extensive
period of traveling, a time thatpushed him “to think about thereal purpose of our lives and society”, he returned to Japan andmoved into the energy business.
Working in the energy sector,
Mr. Mezaki believes, enabled him
to resolve the conflict of interest
he had experienced in investment banking. “As we expand,we make money,” he explains,“but our expansion is also goodfor society, making it a win-winsituation.” Material gain, in otherwords, accompanied by an increase in spiritual wealth.
Business-wise, of course,
moving into energy has proveda shrewd move. As well as welldocumented challenges such as
an aging population and shrinking domestic labor market, Japan, as Mr. Mezaki sees it, isalso beset by other issues. These
include, but are not limited to,“a reliance on imports, a lack ofnatural resources” and the “highcost of energy.”
Though renewable energy
has its detractors, it offers aSukawagawa small hydro power plant

GPSS is also working on
farming solar power generation

Water intake of Sukawagawa
hydro power plant

The Matsunoyama Onsen: community power generation
clear solution to the problems irrigation water. “The project,”mentioned above. GPSS Hold- Mr. Mezaki confirms, “is alsoings deals in five different types contributing to the maintenanceof renewable energy: solar and and development of regional agwind as variable energy, and riculture through the benefit regeothermal, hydro and biogas turned to the local community.”
Looking to the future, Mr.
as baseload energy.
Mr. Mezaki praises geother- Mezaki is hoping to make a difmal for its stability, and is also ference in isolated island nakeen to point out that it needn’t tions such as Sri Lanka, where
have a detrimental effect on inhabitants face similar issues
communities. “There is a mis- to those present in Japan.
Equally important, with aconception,” he says, “that when
you use geothermal power, you recently launched Taiwanese
deplete the resources of the subsidiary and partners in 11
hot spring, but that simply foreign countries, is the proisn’t true.” Indeed, in places motion of a culture that is crelike Beppu, geothermal plants ative, open and internationallyand hot springs co-exist happily minded.
“To me,” Mr. Mezaki confirms,
alongside one another.
Mr. Mezaki again: “Sometimes “having a tolerant culture is viwhen people start a project, tal, and this in turn promotes
they go to local communities diversity. I’ve always pushed forand lease or buy properties as a more international mindset,
cheaply as possible in order to and we now have 26 different
maximize profits. We, on the nationalities working for GPSS,
other hand, establish joint ven- making it possible for our emtures with local communities ployees to act as a bridge toso that they can become stake- local communities.”
Internationalism, that is, as aholders themselves.”
A case in point is a recent means of fostering communicapartnership project in Gunma tion and co-development on aPrefecture, where GPSS has global scale.
renovated an old power plant togenerate hydropower using water flow from the Sukawagawa
River, a move which has enabled
the local community to havehttps://gpssgroup.jp
clean and easy access to the