BITS AND BOBS manufacturer, 3M, has suddenly noticed it holds patents on lithium ion batteries and has filed a lawsuit against multiple leading laptop PC suppliers in the USA. Nokia could easily be the next target.
Lithium ion batteries are used by many different types of portable electronic/electrical devices including MP3 players and camcorders as well as notebook PCs. But mobile phones sell in their billions and Nokia is by far the biggest supplier. The company refused to comment on the issue, however.
The move is curious because the patented technology covered in the suit relates to cathode materials developed by 3M The cathode being the postive electrode in this kind of battery.
More puzzlingly still, the lawsuit alleges 'willful infringement' by the parties involved which include CDW, Hitachi, Lenovo, Matsushita (Panasonic), Sony and others.
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