Inventor

WANG CHIEH-WEN

TW15 patents

⚠️ This page may combine multiple inventors who share the name “WANG CHIEH-WEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IND TECH RES INST

10 patents

US6382773B1May 7, 2002

Method and structure for measuring temperature of heater elements of ink-jet printhead

IND TECH RES INST44 citations92

US6378978B1Apr 30, 2002

Chip structure of inkjet printhead and method of estimating working life through detection of defects

IND TECH RES INST25 citations89

US6322193B1Nov 27, 2001

Method and apparatus for measuring the droplet frequency response of an ink jet printhead

IND TECH RES INST25 citations89

US6540341B2Apr 1, 2003

INT UNITED TECHNOLOGY CO LTD

5 patents

US6698872B2Mar 2, 2004

Ink cartridge for preventing ink from spilling

INT UNITED TECHNOLOGY CO LTD19 citations92

US6568783B2May 27, 2003

Recognition circuit for an ink jet printer

INT UNITED TECHNOLOGY CO LTD28 citations92

US6719397B1Apr 13, 2004

Ink jet printhead identification circuit and method

INT UNITED TECHNOLOGY CO LTD32 citations90

US6834944B2Dec 28, 2004

Ink slots for providing ink to unilateral heaters

INT UNITED TECHNOLOGY CO LTD2 citations59

US6607265B2Aug 19, 2003

Ink print head with low flow resistance central refilling

INT UNITED TECHNOLOGY CO LTD0 citations51

WANG CHIEH-WEN

IND TECH RES INST

Method and structure for measuring temperature of heater elements of ink-jet printhead

Chip structure of inkjet printhead and method of estimating working life through detection of defects

Method and apparatus for measuring the droplet frequency response of an ink jet printhead

Pressure controller for an ink cartridge

Pressure control device

Structure and fabricating method for ink-jet printhead chip

Structure of ink slot on ink-jet printhead chip

Ink pressure adjustment device for inkjet pen

Method and apparatus for supplying ink to an printhead