Inventor
TANAKA MASARU
JP134 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
21 patentsUS6266501B1Jul 24, 2001
Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal
RICOH KK90 citations98
US5887224AMar 23, 1999
Image forming device with improved mixing of circulated developer with replensihed toner
RICOH KK97 citations98
US6085062AJul 4, 2000
Electrophotographic image forming apparatus
RICOH KK100 citations97
US6628903B1Sep 30, 2003
Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper
RICOH KK52 citations96
US6148161ANov 14, 2000
Image forming apparatus with improved toner density control
RICOH KK64 citations96
US6144811ANov 7, 2000
Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper
RICOH KK70 citations96
US6144822ANov 7, 2000
Image forming apparatus having detachable transfer roller and discharge device
RICOH KK63 citations96
US5815767ASep 29, 1998
Image forming apparatus
RICOH KK44 citations96
US5678125AOct 14, 1997
Image forming apparatus
RICOH KK43 citations96
US5532795AJul 2, 1996
Method of and system for cleaning roller members
RICOH KK52 citations96
US5109254AApr 28, 1992
Developing apparatus
RICOH KK101 citations96
US6160969ADec 12, 2000
Image forming apparatus with a voltage applying unit for image transfer
RICOH KK57 citations95
US6128449AOct 3, 2000
Image forming apparatus and method for controlling charging and developing bias voltage
RICOH KK72 citations95
US6055388AApr 25, 2000
Image forming apparatus and method for obtaining appropriate toner density
RICOH KK83 citations95
US6006050ADec 21, 1999
Image forming method and apparatus for controlling amount of supplied toner or agitating time
RICOH KK75 citations95
US5321483AJun 14, 1994
Cleaning device for image forming equipment
RICOH KK23 citations93
US4800411AJan 24, 1989
Magnetic brush development device for electrostatic latent images
RICOH KK42 citations93
US6898383B2May 24, 2005
Image forming apparatus
RICOH KK19 citations92
US5915143AJun 22, 1999
Image forming apparatus and method for automatically adjusting toner density in response to humidity variations
RICOH KK55 citations92
US6097914AAug 1, 2000
Image bearing member and method of manufacturing the member and image forming apparatus using the member
RICOH KK23 citations88
US7177555B2Feb 13, 2007
Image forming process and image forming apparatus
RICOH KK18 citations84
FUJITSU LTD
5 patentsUS7787364B2Aug 31, 2010
Control scheme for standby channel route
FUJITSU LTD23 citations93
US6618455B1Sep 9, 2003
Clock management method and transmission apparatus for synchronous network system
FUJITSU LTD45 citations92
US7598748B2Oct 6, 2009
Inverter system
FUJITSU LTD13 citations81
US7492162B2Feb 17, 2009
Inverter system
FUJITSU LTD12 citations81
US7486082B2Feb 3, 2009
Anomaly detection in inverter system
FUJITSU LTD9 citations81
TDK CORP
4 patentsUS6369495B2Apr 9, 2002
Organic electroluminescence display device and producing method thereof
TDK CORP98 citations99
US6037712AMar 14, 2000
Organic electroluminescence display device and producing method thereof
TDK CORP292 citations99
US5240863AAug 31, 1993
Method of measuring immunoreactant using electrochemiluminescence
TDK CORP103 citations95
US6290563B1Sep 18, 2001
Organic electroluminescence display device and producing method thereof
TDK CORP26 citations93
SUMITOMO HEAVY INDUSTRIES
3 patentsUS5677597AOct 14, 1997
Electron flow accelerating method and apparatus which can generate a high-power beam
SUMITOMO HEAVY INDUSTRIES48 citations96
US5557172ASep 17, 1996
Plasma beam generating method and apparatus which can generate a high-power plasma beam
SUMITOMO HEAVY INDUSTRIES50 citations96
US6160350ADec 12, 2000
Ion plating apparatus
SUMITOMO HEAVY INDUSTRIES37 citations92
SHARP KK
2 patentsSANYO ELECTRIC CO
2 patentsCANON KK
2 patentsKATSU MANUFACTURING CO LTD
2 patentsHORIBA LTD
2 patentsTOYOTA MOTOR CO LTD
1 patentSUZUYOSHI CORP
1 patentSANWA SHUTTER CORP
1 patentJAPAN TOBACCO INC
1 patentTERUMO CORP
1 patentMITSUBISHI ELECTRIC CORP
1 patentTANAKA MASARU
1 patentShowing the top 50 of 134 patents by PatentIndex Score.