Kondo Kagaku co. ,ltd
Native name
FoundedSeptember 1, 1964 (1964-09-01)
FounderKinjiro Kondo
Key people
Hirotoshi Kondo
BrandsKO Propo
Digiace (defunct)
Total assets5,000,000,000 JPY
Number of employees

KO PROPO is a brand of radio control equipment and humanoid robot (KHR-1) by Kondo Kagaku, established in Tokyo, Japan in 1945.

In 1982 KO PROPO introduced the Expert EX-1, reported to have been the first to integrate a pistol grip into a transmitter device with a gun trigger to act as the throttle, which later became a popular fixture in radio controlled transmitters.[1][2]

As of 2016 the company had won 32 IFMAR World titles.[3]


  1. ^ "Modellbilens historie". ymr.no.
  2. ^ "RC10Talk.com – View topic – A comprehensive history of Ko Propo EX1 (1982–2002)". rc10talk.com.
  3. ^ "Ralph Burch Jr is World Champion". kopropo.com.