History

The Dawn of the Information Age

1991

  • -Start of construction and maintenance and operation services of high power very low frequency (VLF) transmitting equipment
  • -Building of the Shiga Plant (currently leased to Denko Techno Heat Co., Ltd.), and expansion of high-frequency induction heating services
  • -Start of mobile telephone base station antenna manufacturing
Photo: Very low-frequency antennas

Very low-frequency antennas

  Photo: Multi-media tower

Multi-media tower

1992

  • -Start of sales of electron shower apparatus
  • -Technical cooperation with Germany's ALFING and start of sales of follower crankshaft hardening equipment
Photo: Electron shower apparatus

Electron shower apparatus

  Photo: Follower crankshaft hardening equipment

Follower crankshaft hardening equipment

1994

  • -Beginning of PHS base station antenna manufacturing
  • -Opening of the Tokai Techno Service Center to expand IH Heat-Treatment Processing services. (The Tokai Techno Service Center is currently leased to the Kariya Plant of Denko Techno Heat Co., Ltd.)
  • -Start of sales of the thin slab induction heating system
Photo: Thin slab induction heating system

Thin slab induction heating system

 
Photo: PHS base station antenna

PHS base station antennas

  Photo: 217 m-tall television broadcasting relay steel tower

217 m-tall television broadcasting relay steel tower

1997

  • -Closure of the Yosami Radio Transmitting Station, ending 70 years of service
  • -The Kawagoe Office and the Kawagoe, Kanuma, and Atsugi plants all receive ISO-9000s certification (quality control system)
Photo: Mobile telephone base station

Callular phone base station

  Photo: Mobile telecommunications steel tower

Mobile telecommunications steel tower

  Photo: Digital terrestrial broadcasting antenna

Digital terrestrial broadcasting antenna

1999

  • -Contract for construction of joint testing digital terrestrial broadcasting antenna for seven areas in Japan
Photo: 250m-high Low Frequency standard time and frequency transmission station steel tower

250 m-high Low Frequency standard time and frequency transmission station steel tower

  Photo: Digital terrestrial broadcasting experimental apparatus installed on Tokyo Tower

Digital terrestrial broadcasting experimental apparatus installed on Tokyo Tower

Related Information

Telecommunication Division

The activities of the Telecommunication Division.

Radio Frequency Division

The activities of the Radio Frequency Division.

  • About Us
  • Greetings
  • Company Outline
  • History
  • Progress of Denki Kogyo
  • History of the Yosami Radio Transmitting Station
  • At the Establishment of Denki Kogyo
  • The Era of High-Speed Growth
  • A Time of Rapid Transformation
  • The Era of Stable Long-Term Growth
  • The Dawn of the Information Age
  • Toward a New Era Led by the IT Revolution
  • Business Offices
  • Affiliated Companies
  • Corporate Data