Quote:
Originally Posted by jhalphen
Hi to all,
The Chinese 4" flat CRT type 04MC has a TOSHO "made in China" label, see photo.
The Sony 4" WatchMan model FD-40A has a 4" CRT designated as 04JM, see extract from schematic.
Questions:
- does TOSHO manufacture in China using a Sony licence?
- unlicenced clone?
Unless the Sony patents have already run out, i don't see Sony sitting back doing nothing if someone stole their design.
From memory, WatchMans appeared circa 1983, so +20 years forward the patents have indeed expired.
Best Regards
jhalphen
Paris/France
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I'd think the IP rights are obsolescent and basically not worth defending in the age of LCD technology. Sort of like vidicons in the CCD/ CMOS era as limited interest curiosities with limited real utility value.
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