Thank you Rob for the kind comments.
My research has involved contacting Luigi Chirico and also my friend, an Italian bicycle research historian has spoken to Luigi on the same subject.
Additional information has revealed that Claudio Chirico was invited by Andrea Cinelli to join Cinelli in 1980. He did so, but it is not clear exactly what his specific involvement was, but it certainly involved additional Cinelli frame production.
It is not known to me whether the additional Cinelli frames were produced on their premises, or whether there was a sub-contract arrangement, with the frames being produced in the Chirico factory.
Claudio invented automatic front fork production machinery at some time and his father Erminio perfected a production technique for the frame's seat stays.
With Andrea, Claudio was involved with setting up Team Centurion, which was eventually disbanded in 1987; this coincided with the monetary exchange rate which also affected the production of frames.
It might be the case that Chirico manufactured some carbon frames but they withdrew when high technology carbon frame production became the norm.
Finally, I don't understand why Chirico are not referred to in the VeloBase brand data-base, perhaps they're elusive and keeping a low profile !