| 1916 | Tokyo Medical Electric Co., Ltd. established by Kenji Ito, |
|---|---|
| developing Japan's first AC X-ray machine and other devices。 | |
| 1924 | Publication begins of the monthly magazine "Musen to Jikken (Radio and Experiments)," |
| Japan's first magazine specializing in radio technology (now published by Seibundo Shinkosha) | |
| 1930 | Chairman Ito made a contribution to the development of radio technology |
| and establishment of NHK | |
| 1934 | Production and sale of Japan's first ultra-shortwave therapy equipment |
| 1935 - 45 | Development of devices such as electrosurgery unit knives and electronic microscopes |
| 1946 | Development of devices such as electro cardiographs, electroencephalographs, and pH meters |
| 1957 | Company name changed to Ito Co,. Ltd. Development of extensive therapy equipment |
| 1971 | New office building built at 3-3-3 Toyotama-Minami, Nerima-ku, Tokyo |
| 1977 | Development of Doctor Pulse (TENS), ushering in a new trend of TENS in Japan |
| Increase in overseas trade leads to establishment of operations all over the world | |
| 1983 | Establishment of R&D |
| 1988 | Ito Building completed in Fukuoka |
| 1989 | Development of Osteotron, Japan's first bone-union stimulator. Completion of Tsukuba Factory |
| 1990 | Establishment of local subsidiary company in Singapore |
| 1994 | Establishment of Shanghai Office in China. |
| Development of US-3, Japan's first dual frequency therapeutic ultrasound equipment. | |
| Development of the IDA-220, Japan's first CPM | |
| 1998 | Establishment of Hanoi Office in Vietnam. |
| Development of Trio300, | |
| the world's first miniature multi-mode stimulator (with three integrated functions). | |
| Development of PM-800S/W, | |
| the world's first inverter-controlled pulsed and continuous microwave therapy equipment. | |
| Development of the SW-180 / SW-101, | |
| Japan's first pulsed and continuous shortwave therapy equipment | |
| 1999 | Acquires ISO9001 certification |
| 2001 | Company celebrates 85th anniversary.Development of US-100, |
| Japan's first therapeutic ultrasound equipment with a frequency of 0.8 MHz | |
| 2002 | ITO Building in Osaka completed. Launch of ES-420, a portable multi stimulator. |
| 2003 | Launch of ES-520, 2-channel low- and medium-frequency electrotherapy unit. |
| IF design award 2003 for ES-420 and ES-160 Acquires ISO14001 certification | |
| 2004 | Launch of EU-940, 4-channel electrotherapy / multi-frequency ultrasound combo. |
| 2005 | Launch of US-750, multi-frequency ultrasound unit. IF design award 2005 for EU-940 |
| 2006 | Company celebrates 90th anniversary. .IF design award 2006 for US-750 |
