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| Mar.1973 |  |
Established as Isahaya Electronics Industry Co., Ltd.. in Kaizu, Isahaya City, Nagasaki Pref.. |
| Aug.1973 | |
Commenced production of SS-Transistors. (Monthly Production: 4,000,000 units) |
| Apr.1979 | |
Commenced IC chip visual inspection and production of Hybrid ICs. |
| Jul.1985 | |
Established IDC Co., Ltd. as an engineering Company of Isahaya Electronics Industry Co., Ltd.. |
| Oct.1986 | |
Hybrid ICs Production transferred from Mitsubishi Electric Corp. Kitaitami Works to IDC. |
| Mar.1991 | |
Built staff dormitory "Houshikan" in Isahaya. |
| Apr.1991 | |
Merged with IDC Co., Ltd. and changed the name to Isahaya Electronics Corporation. |
| Jul.1991 | |
Built training center (Arcadia. Obama), currently Obama training center. |
| Jul.1995 | |
Consigned production of Hybrid ICs commenced in China. |
| Oct.1995 | |
SS-Transistors production transferred from Mitsubishi Electric Corp. to IDC. |
| Apr.1996 | |
Consigned production of SS-Transistors commenced in Philippines. |
| Dec.1996 | |
ISO9001 certification acquired. (SS-Transistors, Hybrid ICs) |
| Mar.1998 | |
Set up production lines of SS-Transistors. (Monthly Production Capability: 100,000,000 units) |
| Mar.2000 | |
Built "Head Office". (Tsukuba) |
| Mar.2001 | |
ISO14001 certification acquired. |
| Nov.2002 | |
Established Overseas Sales Office， ISAHAYA ELECTRONICS SALES ASIA LIMITED. (IESA) |
| Apr.2003 | |
Established Overseas Sales Office， ISAHAYA ELECTRONICS SALES ASIA LIMITED SINGAPORE REPRESENTATIVE OFFICE. (IESG) Commenced the independent business of Hybrid ICs, SS-Transistors. |
| Oct.2003 | |
Established Overseas Sales Office， ISAHAYA ELECTRONICS SALES U.S.A.,INC.. (IESU) Established Overseas Production Facilities， IDC PHILIPPINES ELECTRONIC CORPORATION. (IPEC) |
| Nov.2004 | |
Established Overseas Production Facilities， ISAHAYA ELECTRONICS TECHNOLOGY (SHENZHEN) CO.,LTD.. IESG Incorporated Under ISAHAYA ELECTRONICS SALES SINGAPORE PTE. LTD.. (IESS） |
| Mar.2005 | |
Built "Tsukuba Laboratory". |
| Nov.2006 | |
Received the Governor's prize of Nagasaki Prefectural. (Hybrid ICs) |
| Nov.2008 | |
Received the Governor's prize of Nagasaki Prefectural. (Hybrid ICs) |
| Sep.2009 | |
Concluded Industry-university cooperation with Nagasaki University. |
| Nov.2009 | |
Received the Governor's prize of Nagasaki Prefectural. (SS-Trasistors) |
