| 1922 | Founded by Chutaro Yokoo in Sumida, Tokyo. |
|---|---|
| 1951 | Incorporated. |
| 1955 | Started production of Rod Antennas. (Withdrew in 2003) |
| 1957 | Started production of Car Antennas. |
| 1959 | Started production of Sporting Goods. (Withdrew in 1995) |
| 1962 | Listed on the second section of Tokyo stock exchange. |
| 1967 | Established YOKOWO MFG.CO., (TAIWAN) LTD. (Closed in 1999, and Established YOKOWO MICRO TECH CO., LTD.) |
| 1973 | Established YOKOWO (HONG KONG) LTD. |
| 1978 | Established YOKOWO (SINGAPORE) PTE.LTD. |
| 1979 | Started production of Spring Contact Probes. |
| 1981 | Established N.V.YOKOWO (EUROPE) S.A. in Brussels, Belgium. |
| 1983 | Started production of Satellite Broadcasting Antenna Systems. |
| 1984 | Established YOKOWO AMERICA CORPORATION in Chicago, U.S.A. |
| 1986 | Started Satellite Receiving Equipment production for Europe and U.S.A. Expanded Circuit Testing Equipment lineup. Started production of Spring Connectors. |
| 1987 | Expanded Microwave Components lineup. Established YOKOWO ELECTRONICS (M) SDN.BHD. |
| 1989 | Completed new Head office and expanded Development division. |
| 1990 | Changed company name to YOKOWO CO., Ltd. |
| 1993 | Acquired ISO9002 certificate at Tomioka plant. |
| 1994 | Established DONGGUAN YOKOWO ELECTRONICS CO., LTD. |
| 1995 | Acquired ISO9001 certificate at Head office & Tomioka plant. Established DONGGUAN YOKOWO CAR COMPONENTS CO., LTD. |
| 1996 | Started production of Microwave Ceramics. |
| 1998 | Acquired ISO14001 certificate. Established YOKOWO MICRO TECH CO., LTD. |
| 1999 |
Established DONGGUAN YOKOWO COMMUNICATION COMPONENTS CO., LTD. Established YOKOWO EUROPE LTD. in London, U.K. |
| 2000 | Established YOKOWO·DS CO., LTD. (Merged in 2008) |
| 2001 | Listed on the first section of Tokyo stock exchange. |
| 2002 | Established YOKOWO MANUFACTURING OF AMERICA LLC. Established YOKOWO KOREA CO., LTD. |
| 2004 | Established joint corporation INFAC-YOKOWO CO., LTD. (Transferred in 2008) |
| 2005 |
Established YOKOWO (FRANCE) S.A.S.(Dissolved in 2010) Established YOKOWO CORP. (H.K.) LTD. Expanded the plants in China. |
| 2006 | Started production of Micro precision processing components of Medical Devices. |
| 2007 | Established YOKOWO ADVANCED DEVICE CENTER. Established YOKOWO (THAILAND) CO.,LTD. Expanded Tomioka plant. |
| 2008 | Took over the Probe Card business from Genesis Technology Inc. Established YOKOWO MEMS DEVELOPMENT CENTER. |
| 2011 | Established YOKOWO VIETNAM CO., LTD. (Commencing operation in 2012) |
