Kyosan Corporation

Our predecessor company "Tokyo Denki Kogyo Co., Ltd." was founded in Kanda Awajicho, Tokyo and began manufacturing and selling medical electrical equipment and electrical machinery

Our company was founded on September 3, 1917 (Taisho 6) in Kanda Awajicho, Tokyo as Tokyo Denki Kogyo Co., Ltd.

Founder Tokio Kobayakawa established another predecessor company "Keisan Sho-kai" in Kyobashi, Tokyo (origin of the name "Keisan")

Relay: First domestic

Introducing the small four-wheeled truck "Keisan No. 3" born in Showa 6

Kobayakawa Tsuneo became CEO of Tokyo Electric Industrial : 1921 : Impedance Bond

Opened Tokyo office : 1923 : Automatic closing signal device : First domestic : Electric motor-driven device : First domestic : 1925 : Crossing alarm : First domestic : Electric switching device

Crossing alarm : First domestic : Electric switching device

Changed company name to Kyosan Manufacturing Co., Ltd. : 1926 : Electric motor-driven device : First domestic

Established and relocated headquarters and factory to current location in Tsuru-omi

Introducing the small four-wheeled truck "Keisan No. 3" born in Showa 6

Merged with Kyosan Trading Co., Ltd. and Japan Electric Application (transformer manufacturing company) : 1931 : Interlocking closing device : Traffic signal : Copper oxide rectifier : First domestic : Small automobile (Kyosan No.) : 1932 : Punch-type ATS device : First domestic : Single-line automatic closing signal device : Remote control device : 1933 : Relay interlocking device : First domestic

Punch-type ATS device : First domestic : Single-line automatic closing signal device : Remote control device

Relay interlocking device : First domestic

Opened Osaka branch office (now Osaka branch)

CTC device : First domestic

Carrita (railcar retardation device) << JR New Tsuru-omi Shakujō>> : First domestic

System-type traffic signal control device

Opened Nagoya branch office (now Nagoya branch)

Established Kyosan Industrial Co., Ltd. (now Kyosan Precision Co., Ltd.)

Listed company shares on Tokyo Stock Exchange

Selen rectifier

Time code CTC device

Opened Kyushu regional office (now Kyushu branch)

B-type in-car alarm device

AF track circuit device

Type A and C in‑cab alarm device: multi‑stage traffic signal system: silicon rectifier: first domestic

Dedicated machine tools for automobile factories

Listed our shares on the First Section of the Osaka Stock Exchange

Established Keisan Construction Co., Ltd. (now Keisan Elecos Co., Ltd.)

Tokaido Shinkansen ATC device: crankshaft wrapping machine (machine tool): CVCF power supply

Established Keisan Industry Co., Ltd.: automatic sensing traffic signal system: first domestic

Opened Sendai branch (now Sendai branch): program‑controlled train operation control device (PTC)

Car Stopper

Various ATS systems: transformer machine (machine tool)

Train total control system (TTC)

Opened Hiroshima branch (now Hiroshima branch): ultrasonic vehicle detector

Opened Sapporo branch (now Sapporo branch)

Opened Shikoku branch (now Shikoku branch): satellite communication ground station power supply: roadside parking meter

Sanyo Shinkansen ATC device

Computer‑controlled TTS device: wide‑area traffic control system: power supply for electronic exchange (DEX) device

Destination sign display device

In‑cab ATC device: non‑insulated track circuit equipment: general DC stabilizing power supply (Sky Power)

Tohoku & Joetsu Shinkansen ATC device: centralized monitoring multi‑stage control device: Miyakojima Airport passenger information system (FIDS)

Doppler vehicle detector: VVVF power supply: Clear‑wrap fuse

Roadside Variable Sign : Bus Operation Comprehensive Management System : First Domestic : Signal Safety Equipment for Mid-Range Transport New Traffic System (Unmanned Driving) : First in the World

Computerized Train Concentrated Control Device for Amtrak in the United States : Mule (Vehicle Movement Device) 《JR Oi Factory》

Type A Concentrated Control Traffic Signal

Invested in Osaka Rectifier Co., Ltd. (now Kyosan Power Supply Co., Ltd.) and made it a related company

Solid State High-Voltage Power Supply : Semi-Free Pattern Information Board Control Device : LED Information Board for Traffic Control : First Domestic

Train Schedule Creation Support Device : Solid State RF Power Supply : Parking Meter Central Management System : First Domestic

High-Frequency Power Converter : High-Voltage DC Power Supply : Analog Control C-Class RF Generator : Mobile Communication Power Supply : Shenzhen Traffic Control System in China : Signal Safety Equipment for the Electrically Conducted Magnetic Levitation HSST in Yokohama Expo : First Domestic

Opened the Sueyoshi Office : K5B Electronic Interlocking Device : Vector Control RF Matcher : Magnetic Continuous Transport System (CTM) Safety Equipment for the International Flower and Green Expo

Single-Stage Brake ATC Device (ME-Type ATC Device)

High-Frequency Induction Heating Power Supply

Capital of 6.203 Billion Yen : Train Operation Management System (PRC) : Optical Vehicle Detector : Digital Control Multi-Function RF Generator

Digital Control Multi-Function DC Converter : Eco Station for Electric Vehicles

Semiconductor Equipment Division (now Power Electronics Division) Obtained ISO9001 Certification

Obtained ISO9001 Certification

Electronic Interlocking Device for Overseas Markets

Nagano Olympic Traffic Countermeasure ITS Equipment

Signal System for Hong Kong International Airport New Traffic System

Section Concentrated Electronic Interlocking Device First Domestic

RF Electronic Matcher

Non-Destructive Testing Device

Matsue City Bus Location System

Movable Platform Barrier (Platform Door)

Class D 13.56MHz RF Generator (Full-Bridge Class D Amplifier)

Power Supply Unit for Shinkansen Signal System

Microwave Power Supply Unit

ISO14001 Certification Obtained

Multi-Functional Power Supply for Communications

Integrated Railway Ballast Electric Transfer Machine (TCK-1) – First in the World

Movable Step – First in the World

Opened Zama Factory

Opened Beijing Office

Digital Control AC Uninterruptible Power Supply (UPS)

HSST Commercialization on the Eastern Hilly Line – First Domestic

Waitress Crossing Signal Device

2005 Good Design Award Winner

Thread Line, Space Light (Platform Safety Equipment) Left/Thread Line Right/Space Light

Taiwan High-Speed Rail Signal Equipment

Autonomous Distributed Control Traffic Signal System

Profile Signal Control System

Signal System for New Transportation System at Changi International Airport

Signal system for the new transportation system at Incheon International Airport

Digital ATS device (C-ATS)

60 MHz RF generator

Diffuse LED traffic signal lamp

Signal system for the new transportation system at Atlanta International Airport

Established a branch office in Taiwan

Signal system for the new transportation system at Miami International Airport

Touch‑activated push‑button box

Signal equipment for Kyushu Shinkansen

On‑board intelligent ATC device

Signal system for the new transportation system between surrounding facilities at Miami International Airport

Class D 40.68 MHz RF generator

Power‑supplement device for traffic signals

Established Kyosan India Private Limited

New factory building with solar power system completed on company premises

Harbin Subway Line 1 signal system

Naiwan Line (Taiwan) operation management system

Three-phase three-wire instantaneous stop compensation device (three-phase imbalance support)

Advanced light beacon

Traffic signal controller with built-in power supply

New factory building: Harbin Metro Line 1 signal system

New factory building: Inwa Line (Taiwan) operation management system

New factory building: Three‑phase three‑wire instantaneous‑stop compensation device (three‑phase imbalance support)

New factory building: Advanced optical beacon

New factory building: Traffic signal controller with built‑in power‑supplement device

Waterproof traffic signal controller

Domestic first fully digital D-class RF generator power supply (world's smallest, compact, high-efficiency, high-capacity amplifier)

Domestic First: Fully Digital D-Class RF Generator Power Supply (World's smallest, compact, high-efficiency, high-capacity amplifier)

Waterproof traffic signal controller – first domestic model

Fully digital Class D RF generator power supply (world’s smallest, compact, high‑efficiency, high‑capacity amplifier)

Established Kyosan USA Inc.

Nagoya Guideway Bus operation monitoring system

Received "Information Promotion Contribution Company Award"

Sendai Subway Tozai Line signal equipment & platform doors

New office building completed on company premises

Transparent platform doors

Hokkaido Shinkansen signal equipment

Bus Shinjuku passenger information system

Received 2016 Good Design Award

New Office Building Transparent Home Door

Celebrated 100th anniversary, established new corporate brand logo and symbol mark "KYOSAN VISION"

As a commemorative social contribution project, donated to Yokohama City Yokohama Science Frontier High School and Tsurumi Police Station

Intrusion Prevention System "Shika Crossing"

2017 Good Design Award Winner

CBTC System for New Transportation System

JR Shikoku New Telemetry System

Keikyu Shinagawa Station Train Departure Guidance Display System

2018 Good Design Award Winner

Lightweight Movable Platform Barrier (Platform Door)

Lightweight Movable Platform Barrier (Platform Door)

Established Kyosan Europe Sp. z o.o.

R&D Center Completed on Company Headquarters Site

DMV Driving Safety System: First in the World

DMV Driving Safety System First in the World

Mid-Term Management Plan 2025 Starts

Our Company Listed on Tokyo Stock Exchange Prime Market