Last week, we
learned that Panasonic had filed a lawsuit against CMC Magnetics claiming patent
infringement in the U.S. District Court for the Northern District of California,
but we had no details or a copy of the complaint. Today, in this story at
PC World, we are able to read that the suit speaks to three
separate patents related to recordable DVD technology.
 The
three patents named in the complaint are: U.S. patent 4,847,132, which
covers a protective layer for a reversible data storage disc; patent
5,790,487, which relates to optical data recording media; and patent RE
37,185, which covers an optical recording head for use in an optical disc
data storage system.
Panasonic asserts that CMC and two U.S. affiliates,
Hotan and KHypermedia, infringed on all three patents. The company is
asking the court for damages relating to the infringement and an
injunction against further infringement.
CMC, which is one of the world's largest manufacturers
of recordable CD and DVD media, couldn't comment on the lawsuit.
"We haven't received any information from them
regarding this matter, therefore we have no comment at this time," said
Sharlene Lin, a CMC Magnetics representative.
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Panasonic has said that the claim was filed only after
talks between the two companies had broken down.
Source: PC World
