Inoue Electric Seisakusho started as subcontracted works and producing amateur radio equipment. The company was a late comer for amateur radio manufacturing; therefore, it was necessary to create something new. The company adopted transistors, instead of tubes, in designing the FDAM-1 all Transistors AM radio.  It was pioneer for replacing vacuum tube with transistor. 

Inoue Electric Seisakusho adopted new technologies constantly after that. Designing an Analog PLL circuit was one of big changes, which ended a generation of multi-crystal frequency-controlled radios. They designed HF radio, the IC-701 (Japanese model of the IC-710) which included digital PLL synthesizer. Mr. Inoue brought it then visited Mr. Arthur Collins who was one of most famous radio engineers in the world. When Mr. Inoue presented the IC-701, Mr. Collins said “Mr. Inoue, you did everything I wanted.” Then he advised Mr. Inoue that the company will grow if you continue developing advanced engineering. His words gave Mr. Inoue additional confidence to continue developing Icom’s amateur radio business.

FDAM-1 (1964)

The first model designed and built by Inoue Electric Seisakusho. It was our legendary all-transistor 50 MHz radio, in which vacuum tubes were not used at all. It made Icom history.

FDFM-25 (1965)
The controller could be mounted on the car dashboard, and the radio unit could be installed in the trunk. It was the forerunner of in-vehicle radios.

IC-700T/IC-700R (1967)
The first amateur HF radio for Icom. Transistors were used in all stages, except for the final stage. Icom became famous for radios using semiconductors.

FDAM-3 (1968)
It was a revolutionary 50 MHz radio using high stability dual VFOs (Variable Frequency Oscillators). One each was used for the transmitter and receiver units, which challenged the mainstream crystal control radio.

IC-71 (1969)
A single high stability VFO (Variable Frequency Oscillator) controlled both transmitter and receiver units. The IC-71 was the first 50 MHz radio that did not require frequency calibration.

IC-20 (1970)
The first 12 channel 144 MHz radio. Helical resonators were used in the receiver unit to reduce intermodulation distortion.

IC-105C (1972)
Introduced know-how cultivated in amateur radio. It became Icom’s first business radio for the Japanese market.

IC-200 (1972)
Used an analog type PLL (Phase Locked Loop) synthesizer and covered the 144 MHz band with 100 channels. The original idea and technology allowed us to differentiate our product from others.

IC-M25 (1975)
The first marine radio. A programming method using a diode matrix was adopted, and up to 25 channels could be programmed. With this radio, crystals were no longer needed for expanding channels, and it drew attention in the US market.

IC-211 (1976)
The first amateur radio to use a system control LSI (SC-3062). It was an Icom original CMOS LSI, which was the largest at that time, with a 6 x 6 mm, 6000-element configuration. This realized digital frequency control, and the dual VFO system.

IC-710 (1977)
The industry’s first HF LSI radio that employed the SC-3062 LSI, and the smallest HF radio at that time. Transistors were used in all stages, including the final stage.

Inoue Electric Seisakusho built a sales network covering not only all of Japan, but also worldwide in the 1970s, and expanded business operations.

Capital was increased for facility investment and the product category was expanded from amateur radios to Business radios and Marine radios. The IC-2N (Japanese model of IC-2AT/IC-2E) amateur handheld VHF transceiver was launched in 1980. It was a small and high-performance radio, which had thumbhole switches to set frequencies in the PLL IC. These functionalities were very well received. Over 2 million IC-2N series transceivers were sold throughout the world. Icom was really grew in the radio manufacture industry.

In these years, the company name was changed to Icom Incorporated, from Inoue Electric Seisakusho.

IC-280 (1978)
The world's first amateur radio equipped with a microcomputer in its main unit. A front panel separate system established a new type of mobile radio.

IC-551 (1979)
Had an auto watch function controlled by a built-in CPU. It had good sales as a 50MHz SSB base station radio.

IC-720 (1980)
Built-in general coverage receiver from 1.8 MHz through 30 MHz. Since this IC-720, a built-in general coverage receiver became a de facto standard specification for HF radios.

IC-2A/AT/E (1980)
This model was a huge success, with over two million units sold all over the world. User friendly thumbwheel switches for frequency change, and a detachable battery pack were adopted.

IC-751 (1983)
The DFM (Direct Feed Mixer) provided 105 dB of dynamic range. It had an 8-bit CPU, 32 memory channels and dual VFOs for cross band operation.

IC-02A/AT/E (1983)
The first handheld radio that adopted a power module, achieving the maximum output of 5W. In addition, it had an LCD display. The radio had a splash-proof construction. Was an evolution of the IC-2N (IC-2AT)

Icom listed its stock on the second section of the Osaka securities exchange on December 19^th, 1990. The first price was JPY 6900 which exceeded JPY 410 from the public offering price. Two days before the listing, Mr. Inoue informs to employee, “I feel a debt of gratitude to all my employees for listing, as we started as a garage manufacture.”

Icom started a new category of Marine Navigation and challenged the use of new technologies onto current categories.  The IC-781 had gained prominence in these years. A 5-inch CRT in the center of the front panel became the Icom style, along with a spectrum scope and high-performance characteristics. This transceiver surprised amateur radio operators as a dream rig.

IC-3200A/E (1985)
The first dual band mobile radio covering 144/430 (440) MHz. The “dual band radio” became very popular after this model was introduced.

IC-A2 (1985)
Icom’s first avionics radio. It had a 4.8 W output power (PEP). It evolved into the IC-A20, which can receive VOR navigation system signals.

IC-1271 (1985)
World's first transceiver equipped with an ATV function. Adopted a specially designed power module SC-1040 to support continuous ATV transmission. It also had a large-capacity CPU and an external RAM unit.

IC-H16T (1985)
Equipped with the 5-tone system used in Europe, and supported various other tone systems. Explosive sales were recorded.

IC-275A/E/H (1986)
Equipped with a newly developed DDS synthesizer. High-speed transmission / reception switching that supported PACKET, AMTOR, and other data communications was achieved.

IC-μ2A/E, IC-μ4A/E (1987)
Provided long lasting battery life with an auto power save function, and worked with R6 (AA) type battery cells.

IC-3MR (1988)
Icom’s first marine radar with a compact design and easy operation.

IC-900A/E (1987)
Called the “super multi-bander system”, utilized an optical fiber cable in data transfer technology. The optical fiber cable was an industry’s first and ensured transmit and receive performance by preventing the influence of external noise and interface.

IC-781 (1988)
A dream rig providing a large 5-inch CRT display with a spectrum scope located in the center of the front panel. Icom’s legendary layout emerged from this model.

IC-4001 (1991)
Japanese low-power license free radio that achieved a surprising palm-sized compactness and lightness that broke the conventional wisdom.

IC-4003 (1992)
The first generation of the brand name "Withcall" of Icom’s low-power license free radios in Japanese market. A storage antenna type that improves portability. Equipped with a function to notify reception of a call by a ringer sound.

Icom opens Narayama R & D center to strengthen middle and long-term engineering development capabilities. Dedicated to research and development on elemental technologies one step ahead of the engineering department. The first Digital amateur transceiver for D-STAR was designed in this R & D center.
In these years, Icom concluded a delivery contract with the US Department of Defense's Soldier Intercom for transceivers, becoming the first company of all the Japanese manufactures to do so. They made hard and strict tests, then selected Icom IC-F3S as the best performance radio. Icom had other contracts in public safety and utilities markets in other countries.
In addition, using RF technologies, Icom entered and expanded a new category of wireless LAN networks.

IC-821 (1994)
It has dual band simultaneous reception as well as satellite communication capability. Incredible reception sensitivity of -19dBμ was achieved for SSB/CW.

IC-706 (1995)
The world’s smallest HF/50/144 MHz radio. It became a benchmark of the multiband radio and proved our advantage in wideband technology.

IC-775DSP (1995)
The world's first circuit configuration using digital signal processor (DSP) featured noise reduction and auto notch, which allows signals to emerge from noise.

MCA7 (1995)
Icom's first digital MCA (Multi-Channel Access; Japanese trunking system). Used a large display with excellent visibility.

MCA22 (1996)
Sophisticated design like a mobile phone at the time.

UX-117 (1996)
Data transmission unit for a 2.4GHz spread spectrum system. Adopted a modulation method that was later used for wireless LANs.

IC-F3S (1997)
Recognized for its reliability, robustness, and operability, and was officially adopted as the US Department of Defense's Soldier Intercom. Delivered 23,000 sets.

IC-2800A/E (1998)
The world's first amateur radio to use a 3-inch color TFT LCD display. Equipped with an external video input terminal, it could be used as a sub-monitor for car navigation system.

BR-200 (1998)
Icom's first wireless communication unit between buildings that wirelessly connects distant buildings. An innovative product that eliminates the cost of laying a dedicated wired line.

IC-756PRO (1999)
Icom’s proprietary technology 32-bit floating point IF DSP radio. Eliminated the analog filter and put IF DSP in its place.

The RF direct sampling system is developed and adopted in the IC-7300. This was an industry first in amateur radio, and many users replaced or added this model to their shacks. The first high-speed, real-time spectrum scope and good phase noise characteristics set new standards.
In the business radio field, the IP501H LTE transceiver is launched to match the general requirements of IP usage.
For producing additional solutions, Icom collaborated with Iridium Communications, to produce a satellite PTT model which can communicate to and from any place in the world over the Iridium network.
In looking for production efficiency and stable quality, Icom investigated installing robot lines in our factory.

|7851 (2014)
Icom’s “Dream Rig” introduced RMDR specifications unmatched at the time, as well as an ultra-high-speed dual scope for contesters and DXers.

|7300 (2016)
Amateur Radio’s first self-contained RF Direct Sampling transceiver, with a high speed, real-time spectrum scope with waterfall. The IC-7300 completely turning the HF world upside down and over 100,000 units sold globally.

IP501H (2015)
Covers entire the country through an LTE (4G) and 3G Network with multiple users in the call group instantaneously.

|A220TSO (2016)
TSO certified model, therefore it can be used as a primary VHF radio in general aviation (part 23) aircraft

|7610 (2017)
Combining features from Icom’s “Dream Rigs” and the newly introduced RF Direct Sampling, the IC-7610 introduced a RF Direct Sampling system with Icom’s Digi-Sel preselector for 110 dB RMDR performance for both of the independent receivers. 

VE-PG4 (2018)
Communication expanding unit across systems and devices. Includes built-in RoIP, SIP gateway, IP router, IP PBX and IP communication controller functions, in one box. Allows connection to any system, such as NXDN digital transceivers, LTE radios, satellite PTT, external devices, and so on. 

|SAT100 (2019)
Uses satellites for worldwide communication, therefore it can communicate even when all infrastructure is shut down. In addition, the IC-SAT100 can be used reliably in areas with no infrastructure, such as mountain areas and remote islands. 

IP730D・IP740D (2020)
Dual mode “hybrid” radios that provide nationwide coverage over LTE networks and conventional VHF/UHF professional radio mode (IDAS™ digital/analog mode). Ensures both a wide coverage area and interoperability in an emergency.

|M94D/DE (2020)
The integrated AIS receiver and Class-H DSC in one VHF marine handheld. Distress button on the back and other vessel's AIS information further ensures safety at sea.

|905 (2023)
 Amateur Radio’s only commercially available radio that covers 144/430 (440)/ 1200/2400/5600 MHz and 10GHz bands.  Icom’s industry leading design places the RF Deck as the base of the antennas, maximizing the RF power at the antenna.