Inventor
OTSUKA KENJI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JAPAN PIONICS
17 patentsUS5895521AApr 20, 1999
Dust removing apparatus and dust removing method
JAPAN PIONICS70 citations95
US5589148ADec 31, 1996
Process for purifying halogen-containing gas
JAPAN PIONICS23 citations93
US5670445ASep 23, 1997
Cleaning agent of harmful gas and cleaning method
JAPAN PIONICS25 citations92
US6261345B1Jul 17, 2001
Process and apparatus for recovering ammonia
JAPAN PIONICS41 citations91
US5935540AAug 10, 1999
Cleaning process for harmful gas
JAPAN PIONICS19 citations91
US5489327AFeb 6, 1996
Process for purifying hydrogen gas
JAPAN PIONICS24 citations91
US6331281B1Dec 18, 2001
Process and apparatus for cleaning exhaust gas
JAPAN PIONICS37 citations89
US6749819B2Jun 15, 2004
Process for purifying ammonia
JAPAN PIONICS36 citations88
US6579509B1Jun 17, 2003
Method of cleaning of harmful gas and cleaning apparatus
JAPAN PIONICS15 citations80
US5882615AMar 16, 1999
Cleaning agent and cleaning process for harmful gas
JAPAN PIONICS13 citations74
US5756060AMay 26, 1998
Process for cleaning harmful gas
JAPAN PIONICS9 citations73
US6638489B2Oct 28, 2003
Cleaning process and cleaning agent for harmful gas
JAPAN PIONICS10 citations72
US6447576B1Sep 10, 2002
Cleaning agent and cleaning process of harmful gas
JAPAN PIONICS11 citations71
US6325841B1Dec 4, 2001
Purifying agent and purification method for halogen-containing exhaust gas
JAPAN PIONICS5 citations62
US6716403B2Apr 6, 2004
Method of recovering a cleaning agent
JAPAN PIONICS2 citations61
US6960552B2Nov 1, 2005
Decompositionally treating agent and decompositionally treating method for fluorocarbons
JAPAN PIONICS4 citations58
US7297315B2Nov 20, 2007
Method of recovering a cleaning agent
JAPAN PIONICS0 citations50
SEIKO EPSON CORP
8 patentsUS8029111B2Oct 4, 2011
Droplet ejection head and droplet ejection apparatus
SEIKO EPSON CORP7 citations83
US9789691B2Oct 17, 2017
Joining method, apparatus of manufacturing joined body, joined body, ink jet head unit, and ink jet type recording apparatus
SEIKO EPSON CORP2 citations71
US11821086B2Nov 21, 2023
Particle coating method and particle coating apparatus
SEIKO EPSON CORP0 citations62
US11220749B2Jan 11, 2022
Particle coating method and particle coating apparatus
SEIKO EPSON CORP0 citations62
US10377135B2Aug 13, 2019
Electronic device, liquid ejection head, and method of manufacturing electronic device
SEIKO EPSON CORP0 citations51
US10189259B2Jan 29, 2019
Joining method, apparatus of manufacturing joined body, joined body, ink jet head unit, and ink jet type recording apparatus
SEIKO EPSON CORP0 citations50
US10005279B2Jun 26, 2018
Method for manufacturing MEMS device, MEMS device, liquid ejecting head, and liquid ejecting apparatus
SEIKO EPSON CORP0 citations42
US8029110B2Oct 4, 2011
Droplet ejection head and droplet ejection apparatus
SEIKO EPSON CORP0 citations40
SEMICONDUCTOR ENERGY LAB
6 patentsUS6762813B1Jul 13, 2004
Electro-optical device and method of manufacturing the same
SEMICONDUCTOR ENERGY LAB61 citations96
US7333169B2Feb 19, 2008
Electro-optical device and method of manufacturing the same
SEMICONDUCTOR ENERGY LAB13 citations93
US6175348B1Jan 16, 2001
Electro-optical device
SEMICONDUCTOR ENERGY LAB31 citations93
US5956009ASep 21, 1999
Electro-optical device
SEMICONDUCTOR ENERGY LAB29 citations93
US6429843B1Aug 6, 2002
Electro-optical device
SEMICONDUCTOR ENERGY LAB9 citations74
US7868984B2Jan 11, 2011
Electro-optical device and method of manufacturing the same
SEMICONDUCTOR ENERGY LAB2 citations63