Inventor
KAWANISHI TSUNEAKI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “KAWANISHI TSUNEAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
9 patentsUS4680058AJul 14, 1987
White ink composition for ink-jet printing
HITACHI LTD95 citations94
US5649273AJul 15, 1997
Belt-type fixing device having an irregular surface contour
HITACHI LTD24 citations92
US5345301ASep 6, 1994
Image fixing device and electrophotographic apparatus incorporated with such device
HITACHI LTD23 citations92
US5519479AMay 21, 1996
Fixing device for electrophotography and electrophotographic apparatus incorporating the fixing device
HITACHI LTD12 citations82
US5363180ANov 8, 1994
Fixing device for electrophotography and electrophotographic apparatus incorporating the fixing device
HITACHI LTD18 citations82
US5508138AApr 16, 1996
Fixing device for electrophotography and electrophotographic apparatus incorporating the fixing device
HITACHI LTD10 citations74
US5215842AJun 1, 1993
Photosensitive element for electrophotography
HITACHI LTD13 citations73
US4978596ADec 18, 1990
Electrophotographic toner comprising lactone-modified epoxy resin
HITACHI LTD9 citations73
US4990418AFeb 5, 1991
Electrophotographic photoreceptor and method of producing the same
HITACHI LTD16 citations72
HITACHI KOKI KK
4 patentsUS5923933AJul 13, 1999
Electrophotographic apparatus
HITACHI KOKI KK49 citations92
US5701560ADec 23, 1997
Image forming apparatus having a photosensitive body formed of a base material consisting of As2 Se3 or a-Si and a method
HITACHI KOKI KK15 citations73
US5832347ANov 3, 1998
Toner for recording electrostatic image and electrostatic recording method and apparatus using the same
HITACHI KOKI KK5 citations62
US6157798ADec 5, 2000
Electrostatic recording apparatus
HITACHI KOKI KK2 citations61
HITACHI PRINTING SOLUTIONS LTD
4 patentsUS6813462B2Nov 2, 2004
Electro-photographic developing unit
HITACHI PRINTING SOLUTIONS LTD17 citations83
US6783909B2Aug 31, 2004
Electrostatic image developing toner and image forming method
HITACHI PRINTING SOLUTIONS LTD8 citations73
US6829449B2Dec 7, 2004
Image forming apparatus with transfer bias inverting function
HITACHI PRINTING SOLUTIONS LTD3 citations61
US6696210B2Feb 24, 2004
Electrostatic charge developing toner and image forming method using the same
HITACHI PRINTING SOLUTIONS LTD0 citations52
HITACHI METALS LTD
3 patentsUS4640880AFeb 3, 1987
Electrophotographic process with magnetic brush development using semiconductive ferrite carriers
HITACHI METALS LTD46 citations92
US4433042AFeb 21, 1984
Electrophotographic developing method using magnetic toners
HITACHI METALS LTD9 citations74
US4265993AMay 5, 1981
Magnetic toner for electrostatic images and transfer copying
HITACHI METALS LTD15 citations74
RICOH PRINTING SYS LTD
3 patentsUS7090956B2Aug 15, 2006
Image forming method and image forming apparatus
RICOH PRINTING SYS LTD7 citations74
US7022448B2Apr 4, 2006
Electrophotographic toner and image-forming system
RICOH PRINTING SYS LTD8 citations73
US7144667B2Dec 5, 2006
Electrostatic charge image developing toner, and developer, image forming apparatus and image forming method using the same toner
RICOH PRINTING SYS LTD2 citations62