Diodes / FETs / Transistors
- Advanced Semiconductor, Inc. [PTM Corp.]
- Advanced Semiconductor Business, Inc. [PTM Corp.]
- Aeroflex / KDI-Integrated Products [Rikei Corp.]
- AMT, Inc.
- Avago Technologies, Ltd. [Richardson Electronics K.K.]
- AWR Japan K.K.
- Chronix, Inc.
- Comotech Corp. [PTM Corp.]
- CORNES DODWELL LTD.
- Cree, Inc. [M-RF Co., Ltd.]
- Custom Microwave Components, Inc. [AMT, Inc.]
- Emcore Broadband [M-RF Co., Ltd.]
- Excelics Semiconductor, Inc. [AMT, Inc.]
- Excelics Semiconductor,Inc. [Rikei Corp.]
- Freescale Semiconductor Japan, Ltd. (Formerly Motorola Japan, Ltd. Semiconductor Products Sector) [Richardson Electronics K.K.]
- Fusoh Shoji Co., Ltd.
- HVVi Semiconductors, Inc. [Richardson Electronics K.K.]
- Infineon [Richardson Electronics K.K.]
- Inter-Continental Microwave, C.E. Precision Assemblies, Inc. [Seki Technotron Corp.]
- M/A-COM. [Richardson Electronics K.K.]
- Maury Microwave Corp. [Seki Technotron Corp.]
- Microsemi Power Products Group (PPG) [Richardson Electronics K.K.]
- Midoriya Electric Co., Ltd.
- Mimix Broadband, Inc. [Richardson Electronics K.K.]
- Mini-Circuits [Mini-Circuits Yokohama, Ltd.]
- Mini-Circuits Laboratory, Inc. [M-RF Co., Ltd.]
- Mini-Circuits Yokohama, Ltd.
- M-Pulse Microwave, Inc. [Netwell Corp.]
- M-RF Co., Ltd.
- Netwell Corp.
- Nextec Microwave & RF, Inc. [PTM Corp.]
- Nitronex Corp. [Richardson Electronics K.K.]
- NoiseCom [CORNES DODWELL LTD.]
- PTM Corp.
- RF Micro Devices, Inc. [Midoriya Electric Co., Ltd.]
- RFHIC Corp. [M-RF Co., Ltd.]
- Richardson Electronics K.K.
- Richardson Electronics K.K. [Richardson Electronics K.K.]
- Rikei Corp.
- Seki Technotron Corp.
- Skyworks Solutions, Inc. [M-RF Co., Ltd.]
- STC Microwave Systems, Olektron [Seki Technotron Corp.]
- Takitek K.K.
- TLC Precision Wafer Technology, Inc. [PTM Corp.]
- Triquint (Including WJ Communications) [Richardson Electronics K.K.]
- TT Electronics Semelab, Ltd. [Richardson Electronics K.K.]