KO PROPO logo with bold blue text and Digital Proportional System in a rectangular border.
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KO PROPO

KO PROPO is the brand name for radio control equipment and robotics products made by Kondo Kagaku Co., Ltd., based in Arakawa-ku, Tokyo, Japan. Its wordmark was registered as a trademark in 2008 as a flat, word-only mark in black ink.

Country: Japan

Industry: Electronics

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KO PROPO is the brand name for radio control equipment and robotics products manufactured by Kondo Kagaku Co., Ltd., a Japanese company based in Arakawa-ku, Tokyo.[1] The company’s official website lists its origin as September 1964 and describes its business as radio and peripherals for model cars, plus robots for education and hobby use.[1]

Design and History

The KO PROPO wordmark has been registered as a trademark by Kondo Kagaku Co., Ltd. A trademark filing dated January 24, 1992 covers the KO PROPO name for radio operated toys including airplanes, helicopters, land vehicles, water vehicles, and trains.[2] A separate trademark registration for the KO PROPO name was filed on February 14, 2008 and registered on December 16, 2008, with the mark described as a flat, word-only mark in black ink.[3]

The company’s official website displays the KO PROPO name in a stylized wordmark format, and the brand appears on product packaging, transmitters, and decals.[4] A product page for a KO decal set notes that the logo of the EX-RR transmitter and RSx3 servos, along with other new item logos, are included in the renewal decal sheet.[5]

Meaning and Symbolism

The brand name itself combines “KO” from Kondo with “PROPO,” a common Japanese abbreviation for “proportional” radio control systems.

Typography and Design

The KO PROPO wordmark uses a bold, condensed sans-serif letterform with the words “KO” and “PROPO” typically displayed together. The trademark registration from 2008 describes the mark as a word mark in black ink, indicating the logo is used as a standalone text-based identity rather than incorporating a pictorial symbol.[3] No official documentation specifying the exact typeface, color specifications, or design agency behind the logo was located in the available research.

Logo Index is an independent educational archive covering logos, visual identities and graphic design history. All trademarks and brand assets remain the property of their respective owners.

Logo data

Measured from the original SVG file on 30/09/2026.

Colors

Single color.

  • #1C63B7Blue, 100%

    RGB 28, 99, 183; CMYK 85, 46, 0, 28

    White text 6.0:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Electronics

281 measured Electronics logos

  • Main color blue32%
  • Wordmark57%
  • Single color57%

From measured files, not tags. Updated 28/10/2026.

Structure

Logo type
WordmarkClassified by AI
Proportions
4.5 : 1Horizontal
Ink coverage
42%58% empty space inside the outline
Symmetry
Asymmetric48% left-right match
Outline
RectangularOverall silhouette
Complexity
Detailed35 shapes, about 694 points

Tints and shades

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#1C63B7

Typography

Lettering style: Geometric sans, uppercase.

This is a style class, not the exact font. The font has not been documented.

Free fonts in this style: Montserrat, Outfit, Urbanist

Visual description

Classified by AI

Style
Geometric, flat, minimal
Layout
Enclosed emblem
Text in the logo
KO PROPO DIGITAL PROPORTIONAL SYSTEM

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