Inventor
ASAHINA YASUO
JP48 patents
⚠️ This page may combine multiple inventors who share the name “ASAHINA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
43 patentsUS6363229B1Mar 26, 2002
Full-color toner image fixing method and apparatus
RICOH KK174 citations99
US7374851B2May 20, 2008
Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method
RICOH KK67 citations98
US7318989B2Jan 15, 2008
Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method
RICOH KK71 citations98
US6406826B1Jun 18, 2002
Carrier for image developer for electrophotography
RICOH KK128 citations98
US6074794AJun 13, 2000
Toner for dry developing
RICOH KK134 citations98
US5840456ANov 24, 1998
Color toner comprising two binder resins of differing softening point
RICOH KK125 citations98
US6828075B2Dec 7, 2004
Carrier for electrophotography and developer using the same
RICOH KK52 citations96
US6818369B2Nov 16, 2004
Toner for electrostatic image development and image forming method and apparatus using the toner
RICOH KK58 citations96
US6500595B1Dec 31, 2002
Carrier for electrophotographic developer, method for manufacturing the carrier, and coating liquid for the method
RICOH KK62 citations96
US6303258B1Oct 16, 2001
Electrophotographic toner and image forming method using the toner
RICOH KK76 citations96
US5612766AMar 18, 1997
Device for regenerating printed sheet-like recording medium
RICOH KK48 citations95
US5545381AAug 13, 1996
Device for regenerating printed sheet-like recording medium
RICOH KK68 citations95
US5403690AApr 4, 1995
Developer for developing latent electrostatic images
RICOH KK76 citations95
US4980258ADec 25, 1990
Dry type developer for electrophotography
RICOH KK78 citations95
US4762763AAug 9, 1988
Toner for developing electrostatic latent image
RICOH KK79 citations95
US5554478ASep 10, 1996
Electrophotographic dry toner
RICOH KK69 citations94
US7521164B2Apr 21, 2009
Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method
RICOH KK22 citations93
US7368212B2May 6, 2008
Toner for developing electrostatic image, developer, image forming apparatus, process for forming image, process cartridge and process for measuring porosity of toner
RICOH KK23 citations93
US7288353B2Oct 30, 2007
Toner, developer, image developer and image forming apparatus
RICOH KK18 citations93
US7261989B2Aug 28, 2007
Toner for developing electrostatic images, developer, image forming method, and image forming apparatus
RICOH KK49 citations93
US7258959B2Aug 21, 2007
Toner for electrophotography and image forming apparatus
RICOH KK42 citations93
US7172844B2Feb 6, 2007
Toner for electrophotography, and image forming process, process cartridge and image forming apparatus using the same
RICOH KK36 citations93
US7169525B2Jan 30, 2007
Toner, developer, image forming apparatus, process cartridge and image forming process
RICOH KK37 citations93
US7163773B2Jan 16, 2007
Toner for developing electrostatic image, developer, process for forming image, and image forming apparatus
RICOH KK27 citations93
US5975446ANov 2, 1999
Pulverizing apparatus
RICOH KK38 citations93
US7455942B2Nov 25, 2008
Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method using the same
RICOH KK41 citations92
US7169522B2Jan 30, 2007
Toner for developing a latent electrostatic image, developer using the same, full-color toner kit using the same, image-forming apparatus using the same, image-forming process cartridge using the same and image-forming process using the same
RICOH KK42 citations92
US6861191B2Mar 1, 2005
Dry toner for developing electrostatic images
RICOH KK45 citations92
US6770411B2Aug 3, 2004
Negatively chargeable toner
RICOH KK50 citations92
US5061588AOct 29, 1991
Dry type toner for electrophotography
RICOH KK36 citations92
US4933250AJun 12, 1990
Magenta color toner for developing latent electrostatic images in color electrophotography
RICOH KK43 citations92
US4841331AJun 20, 1989
Triboelectric charge application member for toner
RICOH KK36 citations92
USRE37197EMay 29, 2001
Device for regenerating printed sheet-like recording medium
RICOH KK21 citations91
US5344732ASep 6, 1994
Multi-color electrophotographic image formation method
RICOH KK28 citations89
US7611815B2Nov 3, 2009
External additive for toner for electrophotography, toner for electrophotography, double-component developer for electrophotography, image-forming process using the toner, and image-forming apparatus using the toner
RICOH KK15 citations84
US7566521B2Jul 28, 2009
Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method
RICOH KK11 citations84
US7368213B2May 6, 2008
Toner and fixing device and image forming device using the same
RICOH KK17 citations84
US7442484B2Oct 28, 2008
Image forming method using toner
RICOH KK16 citations83
US4945022AJul 31, 1990
Triboelectric charge application member for toner comprising copolymer of fluoro-olefin monomer and unsaturated silicon monomer
RICOH KK21 citations82
US4172976AOct 30, 1979
Heat roller fixing apparatus
RICOH KK30 citations81
US7749674B2Jul 6, 2010
Toner, developer, image developer and image forming apparatus
RICOH KK4 citations63
US7547497B2Jun 16, 2009
Toner, and developer, image developer and image forming apparatus using the toner
RICOH KK2 citations63
US7642032B2Jan 5, 2010
Toner, developer, image forming apparatus and image forming method
RICOH KK5 citations62