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Ralf Jurrien : October 1st 2007 - 14:26 CET
Wireless quick battery charger

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EpsonWireless quick battery charger development : Seiko Epson Corporation and Murata Manufacturing Co., Ltd. have agreed to jointly develop a wireless quick battery charger capable of a substantially shorter charging time. Prototypes of the wireless quick battery charger are scheduled to be exhibited at Murata Manufacturing's booth at CEATAC JAPAN 2007 (on October 2nd to 6th at Makuhari Messe) and at Epson's booth at Embedded Technology 2007 (from November 14th to 16th at Pacifico Yokohama). Mobile devices, such as mobile phones, portable audio players, and notebook PCs have become extensively widespread and their growing sophistication has caused them to consume greater quantities of electric power.
Wireless quick battery chargerWireless battery charger
As a result, developing ways to increase the length of time such devices can be operated after each charging has become a critical issue. Moreover, it is anticipated that the frequency with which charging must be done will increase in the future. The thin, compact wireless quick battery charger system being jointly developed by Epson and Murata Manufacturing will be a revolutionary product that will shorten the charging time from the one to two hours required by currently existing charging systems down to approximately ten to fifteen minutes. Furthermore, a wireless charger makes it possible for devices that would ordinarily require their own dedicated charging units to share a single charging unit. In the future, when batteries will need to be charged more frequently, this system has the potential to greatly improve the ease and convenience of charging batteries.

Murata & Epson agreement - Wireless battery charger
Murata Manufacturing has a wealth of experience with compact, thin modules, and with power supply circuits. In addition, it has been working on developing a lithium-ion secondary battery, which it is pursuing as a new business. A lithium-ion secondary battery is capable of the quick charging of a large amount of electrical energy. Epson has long been engaged in developing a non-contact, high-efficiency power transmission system and possesses certification system and IC technologies. The two companies have agreed to carry out joint development, with the goal of producing a commercially viable product within three years.

Wireless quick battery charger development responsibilities - Murata
• Development of quick charge battery
• Development of secondary (battery) module
• Applied ceramic technology
• Electromagnetic field and thermal simulation technologies

Wireless quick battery charger development responsibilities - Epson
• Development of IC for wireless quick battery charger system
• Provide device for high-efficiency power transmission coils and systems
• Development and support of systems
• Development of primary (charger) module

Epson is a global leader in imaging products including printers, 3LCD projectors and small- and medium-sized LCDs. With an innovative and creative culture, Epson is dedicated to exceeding the vision and expectations of customers worldwide with products known for their superior quality, functionality, compactness and energy efficiency. Epson is a network of 87,626 employees in 117 companies around the world, and is proud of its ongoing contributions to the global environment and to the communities in which it is located. Led by the Japan-based Seiko Epson Corp., the Group had consolidated sales of 1416 billion yen in fiscal 2006.

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