Inventor
KAWAMURA NAOTO A
US13 patents
⚠️ This page may combine multiple inventors who share the name “KAWAMURA NAOTO A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
7 patentsUS6062681AMay 16, 2000
Bubble valve and bubble valve-based pressure regulator
HEWLETT PACKARD CO210 citations97
US6305790B1Oct 23, 2001
Fully integrated thermal inkjet printhead having multiple ink feed holes per nozzle
HEWLETT PACKARD CO53 citations96
US6065823AMay 23, 2000
Heat spreader for ink-jet printhead
HEWLETT PACKARD CO55 citations95
US6543884B1Apr 8, 2003
Fully integrated thermal inkjet printhead having etched back PSG layer
HEWLETT PACKARD CO37 citations92
US6540325B2Apr 1, 2003
Printer printhead
HEWLETT PACKARD CO16 citations92
US6336714B1Jan 8, 2002
Fully integrated thermal inkjet printhead having thin film layer shelf
HEWLETT PACKARD CO31 citations92
US6310639B1Oct 30, 2001
Printer printhead
HEWLETT PACKARD CO37 citations92
HEWLETT PACKARD DEVELOPMENT CO
6 patentsUS6582064B2Jun 24, 2003
Fluid ejection device having an integrated filter and method of manufacture
HEWLETT PACKARD DEVELOPMENT CO38 citations92
US6764605B2Jul 20, 2004
Particle tolerant architecture for feed holes and method of manufacturing
HEWLETT PACKARD DEVELOPMENT CO19 citations91
US6918657B2Jul 19, 2005
Fully integrated thermal inkjet printhead having etched back PSG layer
HEWLETT PACKARD DEVELOPMENT CO10 citations74
US7083267B2Aug 1, 2006
Slotted substrates and methods and systems for forming same
HEWLETT PACKARD DEVELOPMENT CO2 citations62
US6911155B2Jun 28, 2005
Methods and systems for forming slots in a substrate
HEWLETT PACKARD DEVELOPMENT CO6 citations61
US7097271B2Aug 29, 2006
Printhead calibration
HEWLETT PACKARD DEVELOPMENT CO1 citations51