Inventor
TSAO YI-HUA
US27 patents
⚠️ This page may combine multiple inventors who share the name “TSAO YI-HUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
17 patentsUS6866378B2Mar 15, 2005
Conductive additives for use in printing processes employing radiational drying
HEWLETT PACKARD DEVELOPMENT CO24 citations92
US6830326B2Dec 14, 2004
Enhancement of ink jet image waterfastness with overprinting
HEWLETT PACKARD DEVELOPMENT CO17 citations92
US6830310B2Dec 14, 2004
Detectable markers in cationic polymeric fixers
HEWLETT PACKARD DEVELOPMENT CO19 citations92
US6652085B2Nov 25, 2003
Enhancement of waterfastness using a polyamine/anionic dye mixture with an acidic fixer
HEWLETT PACKARD DEVELOPMENT CO38 citations92
US6643220B2Nov 4, 2003
Vapor handling in printing
HEWLETT PACKARD DEVELOPMENT CO19 citations92
US7478902B2Jan 20, 2009
Inkjet compositions
HEWLETT PACKARD DEVELOPMENT CO8 citations84
US7388040B2Jun 17, 2008
Anti-kogation additives compatible with cationic polymers for fixer-based printing systems
HEWLETT PACKARD DEVELOPMENT CO9 citations83
US7553395B2Jun 30, 2009
Print media and methods of making print media
HEWLETT PACKARD DEVELOPMENT CO16 citations82
US7951233B2May 31, 2011
Reactive color inks
HEWLETT PACKARD DEVELOPMENT CO2 citations63
US7621631B2Nov 24, 2009
Enhancing color space of reactive ink using heat
HEWLETT PACKARD DEVELOPMENT CO5 citations63
US6998429B2Feb 14, 2006
Dissolving complexes of anionic dye/cationic polymeric fixer
HEWLETT PACKARD DEVELOPMENT CO1 citations63
US7572326B2Aug 11, 2009
Fixer fluid and inkjet ink sets including the same
HEWLETT PACKARD DEVELOPMENT CO5 citations62
US10829658B2Nov 10, 2020
Inkjet ink set
HEWLETT PACKARD DEVELOPMENT CO1 citations61
US11732146B2Aug 22, 2023
Liquid ink containing polytetrafluoroethylene wax emulsion
HEWLETT PACKARD DEVELOPMENT CO0 citations54
US7837291B2Nov 23, 2010
Dissolving complexes of anionic dye/cationic polymeric fixer
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US7654633B2Feb 2, 2010
Dissolving complexes of anionic dye/cationic polymeric fixer
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10844236B2Nov 24, 2020
Liquid bonding agent for liquid ink
HEWLETT PACKARD DEVELOPMENT CO0 citations44
HEWLETT PACKARD CO
4 patentsUS6503978B1Jan 7, 2003
Enhancement of ink jet image waterfastness with overprinting
HEWLETT PACKARD CO29 citations92
US6461418B1Oct 8, 2002
Aqueous ink jet inks for use with commercial offset media and offset ink
HEWLETT PACKARD CO37 citations92
US6475612B1Nov 5, 2002
Process for applying a topcoat to a porous basecoat
HEWLETT PACKARD CO15 citations89
US6451379B1Sep 17, 2002
Increasing dot size on porous media printed with pigmented inks
HEWLETT PACKARD CO10 citations74
POLAROID CORP
3 patentsUS5677110AOct 14, 1997
On-press development of an overcoated lithographic plate
POLAROID CORP72 citations94
US5811220ASep 22, 1998
On-press lithographic development methodology facilitated by the use of a disperse hydrophilic microgel
POLAROID CORP22 citations92
US5677108AOct 14, 1997
On-press removable quenching overcoat for lithographic plates
POLAROID CORP41 citations91