SAW Devices
- Advanced Semiconductor Business, Inc. [PTM Corp.]
- C-Tech Co., Ltd. [Netwell Corp.]
- Fusoh Shoji Co., Ltd.
- IDT / Micro Networks Corp. [Shoshin Corp.]
- Inter-Continental Microwave, C.E. Precision Assemblies, Inc. [Seki Technotron Corp.]
- M-RF Co., Ltd.
- Netwell Corp.
- Nihon Dengyo Kosaku Co., Ltd.
- PTM Corp.
- R.F. Hitec, Inc. [PTM Corp.]
- Rikei Corp.
- Seki Technotron Corp.
- Shoshin Corp.
- Sunny Electoronics [PTM Corp.]
- TEMEX [Rikei Corp.]