Inventor
YASUKAWA SHINJI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “YASUKAWA SHINJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
24 patentsUS6139132AOct 31, 2000
Ink jet recording head with nozzle communicating hole having smaller width than pressurizing chambers in direction of array of pressurizing chambers
SEIKO EPSON CORP42 citations96
US5786833AJul 28, 1998
Piezoelectric driver for an ink jet recording head, including front end plate having front end face aligned with front end face of inactive region of driver
SEIKO EPSON CORP25 citations93
US5548314AAug 20, 1996
Ink jet recording head
SEIKO EPSON CORP23 citations93
US6994942B2Feb 7, 2006
Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same
SEIKO EPSON CORP16 citations92
US6907215B2Jun 14, 2005
Developing device and image forming apparatus incorporating the same
SEIKO EPSON CORP26 citations92
US6875550B2Apr 5, 2005
Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same
SEIKO EPSON CORP23 citations92
US5453770ASep 26, 1995
On-demand type ink jet print head
SEIKO EPSON CORP36 citations92
US7356281B2Apr 8, 2008
Toner, developing device and developing method using the same
SEIKO EPSON CORP11 citations84
US6829454B2Dec 7, 2004
Image forming apparatus with improved transfer efficiency
SEIKO EPSON CORP16 citations84
US6819899B2Nov 16, 2004
Image forming apparatus employing work function relationships
SEIKO EPSON CORP14 citations84
US5764257AJun 9, 1998
Ink jet recording head
SEIKO EPSON CORP16 citations82
US7028377B2Apr 18, 2006
Method of producing an ink jet recording head
SEIKO EPSON CORP6 citations74
US6729002B1May 4, 2004
Method of producing an ink jet recording head
SEIKO EPSON CORP6 citations74
US6460981B1Oct 8, 2002
Ink jet recording head having spacer with etched pressurizing chambers and ink supply ports
SEIKO EPSON CORP12 citations74
US6286942B1Sep 11, 2001
Ink jet recording head with mechanism for positioning head components
SEIKO EPSON CORP10 citations74
US5755019AMay 26, 1998
Piezoelectric driver for an ink jet recording head, and its manufacturing method
SEIKO EPSON CORP7 citations74
US5630274AMay 20, 1997
Method of making an ink jet recording head
SEIKO EPSON CORP6 citations74
US5517225AMay 14, 1996
Ink jet recording head
SEIKO EPSON CORP13 citations74
US7027758B2Apr 11, 2006
Image forming apparatus employing work function relationships
SEIKO EPSON CORP6 citations73
US7809295B2Oct 5, 2010
Color image forming apparatus and method for stabilizing liquid developer viscosity
SEIKO EPSON CORP4 citations63
US7529503B2May 5, 2009
Toner, developing device and developing method using the same
SEIKO EPSON CORP4 citations63
US7135260B2Nov 14, 2006
Imaging system
SEIKO EPSON CORP5 citations62
US7955770B2Jun 7, 2011
Photoconductor, photoconductor cartridge and image-forming apparatus
SEIKO EPSON CORP4 citations60
US7031646B2Apr 18, 2006
Developing device
SEIKO EPSON CORP2 citations59
HITACHI LTD
5 patentsUS6054975AApr 25, 2000
Liquid crystal display device having tape carrier packages
HITACHI LTD82 citations96
US6320630B1Nov 20, 2001
Liquid crystal display device having a slim driver chip
HITACHI LTD63 citations94
US6417827B1Jul 9, 2002
Liquid crystal display device having a wide dynamic range driver
HITACHI LTD38 citations91
US6556182B1Apr 29, 2003
Liquid crystal display device having an improved video line driver circuit
HITACHI LTD17 citations83
US7868860B2Jan 11, 2011
Liquid crystal display device
HITACHI LTD5 citations73
HITACHI DISPLAYS LTD
4 patentsUS7751013B2Jul 6, 2010
Liquid crystal display device with common electrodes connected across gate signal lines utilizing bridge lines and connection portions
HITACHI DISPLAYS LTD17 citations84
US7391399B2Jun 24, 2008
Display device
HITACHI DISPLAYS LTD6 citations73
US8035593B2Oct 11, 2011
Display device
HITACHI DISPLAYS LTD2 citations62
US7701433B2Apr 20, 2010
Display device
HITACHI DISPLAYS LTD4 citations60