TEMCO JAPAN CO., LTD. 2-21-4 Honan, Suginami-ku, Tokyo 168-0062, Japan Phone: +81-3-3314-8001 Fax: +81-3-3314-8003 1-14-2 Chuoh,Morinomiya,Chuoh-ku,Osaka-shi,Osaka Phone: +81-6-4792-4368 Fax: +81-6-4792-4369 TEMCO COMMUNICATIONS, INC. 13 Chipping Campden, South Barrington, Illinois 60010, USA Phone: +1-847-359-3277 Fax: +1-847-359-3743 March 1985 213,500,000 yen Takeshi Takeda President, C.E.O. Development, manufacture, and sales of bone conduction communication devices, infrared communication devices, wireless communication devices, and related electronic parts and accessories for these products. Takeshi Takeda, the President & C.E.O. of the Company got an exclusive right to use the world patents on the idea of picking up the human voices in the ear using the principle of bone conduction technology. He established the Company in March 1985 to develop and manufacture the products by using this world-patented invention. Although the microphones picking up the vibrations of human voice had been already known for their advantages in anti-noise feature, i.e. they were less sensitive to ambient noise but able to transfer human voice effectively, they lacked the quality of the sound and user comfort in actual use. After having had intensive research and development, we first succeeded the bone conduction microphone to solve those problems by picking up the human voice signals at the inner ear that was a suitable point to pick up bone vibrations. Furthermore, owing to the way of positioning a vibration pick-up microphone in the ear, it could make possible to place a speaker and a microphone in one unit. This created epoch-making communication device that allowed the user to send and receive messages with the use of only one ear. We named this product as VOICEDUCER Ear Microphone and started shipping samples at the beginning of 1987. Since then, we had developed the interface amplifier that was specifically suited for the feature of bone conduction sounds and it enabled to improve the audio quality at a great rate. We also developed a VOX (voice-activated) circuitry for the best fit to bone conduction microphone and provided another advantage of hands-free operation. We started to ship this VOICEDUCER Ear Microphone system for facilitating easy application to the variety of radios in the market since March 1988. 1989 Start to supply Tokyo Metropolitan Fire Department. 1990 Start to supply customized portable radio communication equipment to Japan Defense Agency. Introduce a general-purpose Voiceducer radio interface "RB/RD" series. 1991 Start to supply Motorola, Inc., U.S.A. with their official private label accessories for their portable radiophone. 1992 Authorized by US Army to supply their procurement list items. 1994 Start to market general use interface "SB/SD" series for various types of radio communication equipment. Start to manufacture and sell general audio accessories such as headset. 1995 National Police Agency designated Temco's accessories to their portable radiophones as their official supply. 1996 Start to market ear microphone with duplex interface for on the premises PHS mobile communications. 1997 Launch waterproof PTT interface "BM" series. Develop Infrared wireless communications system. Start to market a long-range infrared transceiver. 1998 Develop bone conduction speaker. Start to market headset "HG" series equipped with bone conduction speaker. Devise noise suppressant DSP for VOX with built in algorithm of human vocal program Develop infrared multi-channel mobile communications system "Ir-ED" for emergency medical team. 1999 Start to market VOX waterproof interface "DM" series with DSP Install infrared multi-channel mobile communications system "Ir-ED" for emergency medical team in hospitals in Japan and U.S.A... Develop waterproof secure tactical radio "Vader" customized for bone conduction microphone. 2000 Start to market bone conduction headset "Anzen Shinwa". Start to market IR broadcaster system. Start to supply Motorola with RSM. Launch bone conduction assistive listening device "Kikuchan". 2001 Devise bone conduction system for voice induced program. Develop bone conduction product for Sanyo Electric Company's bone conduction telephone. Develop bone conduction device for TV at the request of Toshiba Electric. 2002 Develop bone conduction portable/PHS "Shellshocker" for helmet worn by motorcyclists. Motorola, Inc., The United States Army, Japan Fire and Disaster Management Agency, Japan Defense Agency, Japan National Police Agency, Japan Metropolitan Police Department, Prefectural Police, Tokyo Communication Equipment Co., Ltd., Japan Radio Co., Ltd., Kanda Tsushin Kogyo Co., Ltd., Hitachi Kokusai Electric Inc., NEC Mobiling Ltd., Nihon Engineering Ltd., NEC Electric Aerospace System Ltd., Fujitsu Ltd., Toshiba Medical Supply Co., Ltd., Iwatani International Corp., Tokyo Electric Power Company, Sanyo Electric Co., Ltd., Sanyo Multimedia Tottori Co., Ltd.