| 1922 |
Founded as Yokoo Manufacturing in Sumida Ward, Tokyo |
| 1951 |
Reorganized into a corporation |
| 1956 |
Started rod antenna business (withdrawn in 2003) |
| 1957 |
Started VCCS business (car antenna business) |
| 1957 |
AM/FM motor antenna |
| 1959 |
Started sports equipment business (withdrawn in 1995) |
| 1959 |
Established Osaka Sales Office in Osaka City |
| 1959 |
Golf equipment |
| 1962 |
Listed on the Second Section of the Tokyo Stock Exchange |
| 1967 |
Established Taiwan Yokoo Industrial Co., Ltd. (now Yuhua Technology Co., Ltd.) |
| 1973 |
Established Hong Kong Yokoo Limited (now Hong Kong Yuhua Limited) |
| 1978 |
Established YOKOWO (SINGAPORE) PTE. LTD. |
| 1979 |
Started circuit inspection connector business (Contact Probe Business) |
| 1979 |
Contact probe |
| 1981 |
Established YOKOWO EUROPE LTD. |
| 1982 |
Established Development Headquarters at headquarters (Started microwave equipment research and development) |
| 1982 |
Satellite broadcasting reception antenna |
| 1983 |
Started PCA business (Personal Communication Antenna Business) |
| 1983 |
Wireless communication antenna |
| 1983 |
Started MICO business (Microwave Component Business) |
| 1983 |
Microwave equipment |
| 1984 |
Expanded Tomioka Factory |
| 1984 |
Established YOKOWO AMERICA CORPORATION |
| 1986 |
Started fine connector business (Spring Connector Business) |
| 1986 |
Spring connector |
| 1987 |
Established YOKOWO ELECTRONICS (M) SDN. BHD. |
| 1989 |
Tokyo Head Office, New Building Completion (Relocated to JR Kanda Manseibashi Building in 2021) |
| 1989 |
Tokyo Head Office |
| 1990 |
Start of VSAT Transmitter Production |
| 1990 |
Changed company name to Yokowo Corporation |
| 1993 |
Tomioka Factory ISO9002 (Quality Management System Standard) Certification Acquisition |
| 1994 |
Established Chubu Sales Office in Toyohashi, Aichi Prefecture |
| 1994 |
東莞友華電子有限公司、設立(中国・広東省) |
| 1994 |
Merged with Dongguan Youhua Automobile Parts Co., Ltd. in 2017 |
| 1995 |
Head Office and Tomioka Factory ISO9001 (Quality Management System Standard) Certification Acquisition |
| 1995 |
東莞友華汽車配件有限公司、設立 (中国・広東省) |
| 1996 |
Started Microwave Ceramics Business |
| 1996 |
Ceramic Antenna |
| 1998 |
ISO14001 (Environmental Management System Standard) Certification Acquisition |
| 1999 |
東莞友華通信配件有限公司、設立 (中国・広東省) |
| 1999 |
YOKOWO AMERICA CORPORATION San Diego Office Opening (California, USA) (Closed in 2017) |
| 1999 |
YOKOWO EUROPE LTD. Relocated to London (Closed in 2021) |
| 2000 |
Yokowo Di Es Established (Merged in 2008) |
| 2001 |
Listed on Tokyo Stock Exchange First Section |
| 2001 |
YOKOWO EUROPE LTD. Finland Office Opening (Helsinki, Finland) (Closed in 2009) |
| 2002 |
YOKOWO MANUFACTURING OF AMERICA LLC Established (Ohio, USA) |
| 2002 |
YOKOWO AMERICA CORPORATION Silicon Valley Office Opening (California, USA) (Closed in 2024) |
| 2002 |
YOKOWO KOREA CO., LTD. 設立(韓国) |
| 2002 |
Utsunomiya Sales Office Opening |
| 2003 |
東莞友華通信配件有限公司 上海事務所、開設(中国・上海)(2015年閉鎖) |
| 2004 |
YOKOWO MANUFACTURING OF AMERICA LLC Detroit Office Opening (Michigan, USA) |
| 2004 |
Joint venture Impac Yokoo Co., Ltd., established (Korea) (2008 transfer) |
| 2005 |
YOKOWO (FRANCE) S.A.S. established (France, Paris) (2010 dissolved) |
| 2005 |
Yuka Trading (Hong Kong) Limited, established (Hong Kong) |
| 2005 |
中国工場拡充 |
| 2005 |
東莞友華通信配件会社 北京事務所、開設(中国・北京)(2011年閉鎖) |
| 2006 |
Start of MD business (medical device micro-precision processing parts business) |
| 2007 |
Establishment of Advanced Device Center (became a joint venture in 2019) |
| 2007 |
YOKOWO (THAILAND) CO., LTD. established |
| 2007 |
Tomioka Factory expansion |
| 2007 |
Tomioka Factory panoramic view |
| 2008 |
Acquisition of probe card business from Genesis Technology Co., Ltd. |
| 2008 |
MEMS Development Center established |
| 2010 |
Yokoo Germany Representative Office opened |
| 2011 |
YOKOWO VIETNAM CO., LTD. established |
| 2011 |
Yokoo Vietnam |
| 2012 |
ISO13485 (medical device quality management system standard) certification acquired |
| 2012 |
東莞友華通信配件公司 大連事務所、開設(中国・大連) |
| 2014 |
ISO27001 (information security management system standard) certification acquired |
| 2015 |
YOKOWO DE MEXICO S.A. DE C.V. established |
| 2016 |
OHSAS18001 (occupational health and safety management system standard) certification acquired |
| 2017 |
YOKOWO AMERICA CORPORATION |
| 2017 |
Tempi Office opened (Arizona, USA) |
| 2019 |
Joint venture LTCC Materials Co., Ltd., established |
| 2020 |
YOKOWO EUROPE GmbH 設立 |
| 2020 |
Migration from OHSAS18001 to ISO45001 |
| 2020 |
Establishment of Yokowo Manufacturing of the Philippines, Inc. |
| 2020 |
Establishment of Lumax Yokowo Technologies Pvt. Ltd. |
| 2020 |
Reorganization into Yokowo Europe GmbH |
| 2020 |
Closure of Yokowo de Mexico S.A. de C.V. |
| 2021 |
Relocation of headquarters to JR Kanda Manseibashi Building |
| 2021 |
Tokyo Headquarters |
| 2022 |
Transition to Prime Market due to reorganization of market segments at Tokyo Stock Exchange |
| 2022 |
Establishment of Yokowo Mirai Support Co., Ltd. |
| 2022 |
Establishment of Yokowo Electronics Vietnam Co., Ltd. |
| 2022 |
Closure of Dongguan Youhua Communication Accessories Company Dalian Office |
| 2024 |
Consolidation of headquarters functions at this office |
