Owner E.I. Du Pont De Nemours and Company

Inventors Coveleskie, Richard Albert; Zwicker, Harry Richard

Agent Callinan

Pub. Number AU-B-2002230991

PCT Pub. Number WO02/47919

Priority 60256242 15.12.00 US

Filing date 14 December 2001

Wipo publication date 24 June 2002

Acceptance publication date 7 June 2007

B41J 2/32 (2006.01) Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed - using thermal heads

B41J 2/475 (2006.01) Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed - for heating selectively

B41J 31/00 (2006.01) Ink ribbons

B41J 31/06 (2006.01) Ink ribbons

B41M 5/42 (2006.01) Duplicating or marking methods

G02B 5/20 (2006.01) Optical elements other than lenses - Filters

G02B 5/22 (2006.01) Optical elements other than lenses - Absorbing filters

B41M 5/40 (2006.01) Duplicating or marking methods - characterised by the base, intermediate or covering layers

G02F 1/1335 (2006.01) Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating