Introduction in English

Business content

Our company conducts social contribution projects through construction of traffic safety facilities and information communication facilities. In order to become a company that continues to contribute to society by providing "safety, security and stability" through our business, we will continue to develop the skills of our employees, improve our technological capabilities in response to changes, and make proposals that meet the needs of our

Message from
the President

Since our founding in Ueno, Tokyo in 1947, Tokiwa Dengyo has continued to work together with society for long years, with the support of the police, Japan Railway, and others, through our activities in constructing traffic safety and information communication facilities. In order to continue providing peace of mind, safety, and stability through our activities and contributing to society, we are constantly improving our technical skills in response to changes, and making proposals that meet customersʼ needs. In addition, we strive to fully utilize every opportunity to provide technologies in response to the rapidly changing social situation. We look forward to your continued support.

PresidentSeiichi Takeno

Company profile

Representative Seiichi Takeno
Established March 31, 1947
Number of employees 110
Address 1-11-6 HigashiUeno, Taito-ku, Tokyo
Capital 20milion yen
Construction licenses Electrical work, telecommunications construction work,
scaffolding, civil engineering, and Minister of Land, Infrastructure,
Transport and Tourism permit (Special work 2) No. 6013
Business Activities (1) Safety facility installation work
  • ・Traffic signal equipment installation
  • ・Information management equipment installation
  • ・Road sign and display board installation
  • ・Display board and street light installation
  • ・Automatic ticket gate installation
(2) Service support work
  • ・Traffic signal maintenance, inspection, design
  • ・Traffic information equipment maintenance, inspection
  • ・Automatic ticket gate maintenance, inspection
(3) Electronic device manufacturing and sales
  • ・Manufacture, sales of LED bulbs for traffic lights
  • ・Manufacture, sales of LED display devices and LED lighting equipment

Business office

Head Office/Tokyo S.O. 1-11-6 Higashiueno, Taito-ku, Tokyo 110-0015
Tatsumi S.O. 3-19-30 Tatsumi, Koto-ku, Tokyo 135-0053
Aomori S.O. 4-10-20 Okidate, Aomori City, Aomori Prefecture 038-0002
Akita S.O. 127-1 sanzengari,sotoasahigawa Akita City, Akita Prefecture 010-0802
Sendai S.O. 3-4-6 Ogimachi, Miyagino-ku, Sendai City, Miyagi Prefecture 983-0034
Tochigi S.O. 367-2 Hiramatsuhoncho, Utsunomiya City, Tochigi Prefecture 321-0932
Chiba S.O. 437-9 Ne, Shiroi City, Chiba Prefecture
Saitama S.O./
Development Office
4-875-1 oonaricho, Kita-ku, Saitama City, Saitama Prefecture 331-0815
Okinawa S.O. 4-1-21 Nagata, Ginowan City, Okinawa


1-11-6 HigashiUeno, Taito-ku, Tokyo
JR:5 minutes walk from Okachimachi
Subway:3 minutes walk nakaokamachimachi Hibiya Line



Safety facility installation work

Safety facility installation work /
Construction Division

  • Traffic signal equipment installation
  • Information management equipment installation
  • Road sign and display board installation
  • Installation of street lights
  • Automatic ticket gate installation

We are engaged in the creation of a safe and secure society through the construction of equipment related to everyday life such as traffic signal equipment, road signs, and display boards on general roads, as well as the installation of equipment that responds to congestion relief and dangerous driving prevention.

Service support work

Service support work /
Traffic Service Division

  • Traffic signal maintenance, inspection, design
  • Traffic information equipment maintenance, inspection
  • Automatic ticket gate maintenance, inspection

In addition to regular inspections of traffic signal facilities on general roads, we also carry out prompt restoration work when normal operation is impaired due to breakdowns or accidents, contributing to the maintenance of safe and smooth road traffic.

Electronics manufacturing and sales

Electronic device manufacturing
and sales / Development Division

Product Inquiries

Saitama S.O./Development Office
TEL:048-651-3893 FAX:048-652-2886
  • Manufacture, sales of LED bulbs for traffic lights
  • Manufacture, sales of LED display devices and LED lighting equipment

We are also working on the development and sale of LED light bulbs that can be used for traffic signal lights on general roads, trams, factories, and other signaling equipment, as well as conversion of existing lighting equipment and display equipment to LED. We will contribute to the realization of a sustainable society through research and development of energy-saving and highly convenient products using LEDs.

Service support work

5G construction
Autonomous driving construction
/Communication Service Division

  • Base station installation
  • Equipment installation and adjustmen
  • Communication maintenance, inspection

As the use of 5G (fifth generation mobile communication system) expands, we are actively working on increasing the number of base stations and conducting demonstration experiments. In addition, we are also focusing on installing and maintaining communication equipment and image processing equipment for autonomous driving, which will become practical with the spread of 5G.