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| Rohm |   |
| Industrial Fiber Optics, Inc |   | |
| Stanley Electric |   | |
| Clairex Technologies |   | |
| Opto Technology Inc. |   | |
| Mitsubishi Electric Corporation |   | |
| Epitex Incorporation |   | |
| Centro Vision |   | |
| Optek Technology |   | |
| MicroLEDs (by Micro Lamps Inc.) |   | |
| Hitachi Semiconductor |   | |
| Roithner Lasertechnik |   | |
| Toshiba Semiconductors |   | |
| Semicoa |   | |
| Cal Sensors, Inc. |   | |
| Thorlabs |   | |
| Discovery Semiconductors |   | |
| DT Detection Technology, Inc. |   | |
| Optronic Laboratories |   | |
| Microsemi Corp. / Corporate |   | |
| Advanced Photonix, Inc. - - - |   | |
| Stanley Electric Sales Of America 2660 Barranca Pkwy - Irvine, CA 92606-5029 USA - - |   | |
| Fermionics |   | |
| PD LD |   | |
| Hamamatsu Photonic Systems |   | |
| Burr Brown Corporation |   | |
| Andor Technology Ltd |   | |
| Infineon Technologies AG |   | |
| Lumex |   | |
| Gigahertz Optik, Inc. |   | |
| Isocom UK |   | |
| RMT Ltd |   | |
| Kodenshi Korea Corp. |   | |
| Vishay Intertechnology / Dale / Sprague / Vitramon / Roederstein |   | |
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