Representative Director  Ichiro Nakahori , Ph. D.

Our company was established in April 2000 in Kobe.
We have been contributing to energy saving and safety in road tunnels under our management philosophy of valuing the relationship of trust with our customers and providing people with the safe and comfortable environment.
Our job is to develop products that utilize our core technologies of simulation and sensing to contribute to the energy saving, environmental measures, and improving fire safety in road tunnels. We will continue to contribute to society and meet your expectations.

Technical Advisor 

Professor Alan Vardy, University of Dundee 


He served as Head of department and Vice-principal at the University of Dundee and has chaired a number of international 
conferences on road and rail tunnel safety, aerodynamics and ventilation.
He has four degrees - BSc, PhD & DEng (Leeds) and DSc (Dundee).
He is a Fellow of the Royal Academy of Engineering and of the Royal Society of Edinburgh.
Since 2000, he has been the Technical Advisor to our company, and  interacting with Dr.Nakahori.
He provides precise guidance on our basic and product technology and contributes to the improvement of our technical competence.

Management Philosophy

Sohatsu Systems Laboratory Inc. values the relationship of trust with customers and provides people with the safe and comfortable environment.

Management policy

  • Sohatsu Systems Laboratory Inc. creates customers.
  • Sohatsu Systems Laboratory Inc. develops innovative services, software and systems.
  • Sohatsu Systems Laboratory Inc. focuses on speed, cost, and quality.
  • Sohatsu Systems Laboratory Inc. cooperates with local and international communities.
  • Sohatsu Systems Laboratory Inc. provides comfortable working environment and training opportunities.

Business structure


Company Name
Sohatsu Systems Laboratory Inc.
Head Office
Sannomiya Denden Bldg 3F A-2,
64 Naniwa-machi, Chuo-ku,
Kobe 650-0035 Japan
40 million yen
Ichiro Nakahori
20 members
Construction consultant (Construction 04 No. 10904)
Electrical work (General-2 No. 117135)
Business contents
Design and development of ventilation,disaster prevention monitoring control systems for road tunnels
ISO9001(2015), ISO/IEC27001
Main Clients

  Hyogo Prefectural Road Public Corporation
  Kobe City Road Public Corporation
  Nagoya Expressway Public Corporation
  Kobe City Transportation Bureau
  Osaka Metro Co., Ltd.
  Hanshin Expressway Co., Ltd.
  East Nippon Expressway Engineering Co., Ltd.
  Nexco Engineering Niigata Co., Ltd.
  Central Nippon Highway Engineering Nagoya Co., Ltd.
  Central Nippon Highway Engineering Tokyo Co., Ltd.
  J-FAST Co., Ltd.
  AMEC Consultants Co., Ltd.
  Public Works Research Institute
  Nippon Expressway Research Institute Co., Ltd.
  Japan Construction Method and Machinery
  Research Institute
  Pacific Consultants Co., Ltd.
  Oriental Consultants Co., Ltd.
  Eight Japan Engineering Development Co., Ltd.
  Chiyoda Consultant Co., Ltd.
  Yonden Technical Consultant Co., Ltd.
  Echo Plan Co., Ltd.
  Hitachi Industrial Products Co., Ltd.
  Panasonic Environmental Engineering Co., Ltd.
  Ebara Corporation
  Dengyosha Machine Works Co., Ltd.
Partner Company

  LISTEC (Germany)
  Teledyne FLIR (Belgium)
  DURAG (Germany)


Systems Engineering Department

 Mainly engaged in consultancy, system development (system design, software design, development, and testing),

     and technical sales.

  ・Main Products: Ventilation measurement and control panels, ventilation measurement and control software

                 (feedback control, feed-forward control, advanced control, etc.) 

        ・ Daily work: Technical sales, preparation of proposal documents, thermo-fluid analysis work, preparation of specifications,

                 software development, software testing, etc.


Manufacturing Department

 Mainly engaged in hardware development (functional design, development, testing, on-site adjustment), on-site surveys,

    and installation work.

  ・Main Products: Inverter power panels, traffic meters, CO meters, fire detection devices.

  ・Daily Work: Preparation of production specifications, on-site adjustment and test procedures, testing, etc.


Development Department

 Mainly engaged in product development, new product research, traffic flow analysis work, and study and research work.

  ・Daily Work: Research, preparation of product development plans, prototype production, etc.




Founded at 5-2-19 Kitanagasadori, Chuo-ku, Kobe (Capital: 10 million yen)
Capital increased from 10 million yen to 20 million yen
Relocated to Kobe City Industrial Promotion Center, 8-4 Higashikawasaki-cho 1-chome, Chuo-ku, Kobe
Capital increased from 20 million yen to 35 million yen
Relocated to Room No. 205, Aioi Building, 5-10-21 Aioi-cho, Chuo-ku, Kobe
D-309 Hyogo Factory was established at 1-2-25 Wadayamadori, Hyogo Ward, Kobe, Hyogo Prefecture Kobe City Manufacturing Reconstruction Factory
Capital increased from 35 million yen to 40 million yen
Awarded the best paper prize at the International Symposium on Tunnel Ventilation
Head office and factory relocated to Kobe International Business Center (KIBC), 5-5-2 Minatojima-Minamimachi, Chuo-ku, Kobe
Factory relocated to C-108, Kobe City Manufacturing Reconstruction Factory, 1-2-25 Wadayama-dori, Hyogo-ku, Kobe, Japan
Head office relocated to Room A-2, 2F, Sannomiya Denden Building, 64 Naniwa-machi, Chuo-ku, Kobe
Ventilation Inverter Panel was registered in NETIS[KK-130014-A]
Linear Temperature Sensor Cable was registered in NETIS [KK-140022-A]
Ventilation Inverter Panel was selected for Kansai Manufacturing 新選 2015
Head office relocated to Room No. A-2, 3rd floor of Sannomiya Denden Building
"Variable speed induction motor drives for road tunnel jet fans driven via long cables"received Hyogo Prefecture Invention Award.
Obtained [ISO9001] quality management system certification (Head Office and Hyogo Factory)
"Jet-fan Inverter Panel" received Hyogo No.1 Manufacturing Award.
Obtained construction business license (Hyogo Prefectural Governor's License), Machine and Equipment Installation and Telecommunications Construction Division 
NETIS registration [KK-170019-A] of new FF ventilation control system
[Jet-fan Inverter Panel] adopted for Hyogo New Product Procurement Certification
Obtained ISO/IEC27001 Information Security Management System Certification (Head Office and Hyogo Factory)
NETIS registration [KK-210075-A] of "Thermal Image Detection Type Automatic Notification Equipment"
Obtained construction consultant business license, Mchanical Division, Construction 04 No. 10904.


【Head office】

Google Maps

Sannomiya Denden Bldg 3F A-2, 64 Naniwa-machi, Chuo-ku,
Kobe 650-0035 Japan

8 minutes walk from JR Kobe Line
"Sannomiya Station" or "Motomachi Station"
3 minutes walk from Subway Kaigan Line
"Kyukyoryuchi/Daimaru-mae Station"
10 minutes walk from Port Liner Sannomiya
8 minutes walk from Kobe Municipal Subway
"Sannomiya (West Exit 1)"


【Hygo Factory】

Google Maps

C-108, C-207, A-107, Kobe City Manufacturing Factory
1-2-25 Wadayamadori, Hyogo-ku, Kobe 652-0884 Japan

15 minutes walk from JR Kobe Line "Hyogo Station"
8 minutes on foot from Subway Kaigan Line "Misakikoen Station"