Inventor
YOSHIKAWA MASANORI
JP45 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIKAWA MASANORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
31 patentsUS6546220B1Apr 8, 2003
Image forming apparatus with plural color image forming units moveable into image forming position
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD90 citations98
US6418296B1Jul 9, 2002
Color image forming apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD86 citations98
US5809380ASep 15, 1998
Color image forming apparatus with plural color units
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD122 citations98
US6249663B1Jun 19, 2001
Color image forming apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD80 citations96
US5345297ASep 6, 1994
Developing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD87 citations96
US6035158AMar 7, 2000
Image forming apparatus and belt unit thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD73 citations95
US6157799ADec 5, 2000
Color image forming apparatus, image forming unit therefor, and transfer belt unit therefor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations93
US6185396B1Feb 6, 2001
Color image forming apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations92
US5759954AJun 2, 1998
Transfer member and thermal transfer printing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92
US6477344B1Nov 5, 2002
Image forming apparatus, transfer belt unit, cleaning device and cleaner unit used for image forming apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations89
US7012723B2Mar 14, 2006
Optical scanning device and color image forming apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6366756B1Apr 2, 2002
Color image forming apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations74
US6201943B1Mar 13, 2001
Color image forming apparatus and belt unit and image forming unit thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6122474ASep 19, 2000
Color image forming apparatus and belt unit and image forming unit thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US5999205ADec 7, 1999
Transfer member and thermal transfer printing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US5956552ASep 21, 1999
Color image forming apparatus comprising a regular mode and a high speed mode
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US5841462ANov 24, 1998
Thermal transfer printing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US5708467AJan 13, 1998
Thermal printing apparatus using intermediate medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US5168289ADec 1, 1992
Thermal transfer recording apparatus having intermediate transfer medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations74
US4841154AJun 20, 1989
Thermal copying apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6133931AOct 17, 2000
Thermal recording method and ink sheet used therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations72
US7149018B2Dec 12, 2006
Optical scanning device and image forming apparatus provided with the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7087892B2Aug 8, 2006
Light scanner and image forming apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US6169870B1Jan 2, 2001
Color image forming apparatus and belt unit and image forming unit thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US5973714AOct 26, 1999
Thermal printing apparatus using intermediate medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US5444465AAug 22, 1995
Thermal transfer recording apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US7023597B2Apr 4, 2006
Optical scanning device, image reading device provided with this, image forming device, and photographing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52
US5920335AJul 6, 1999
Transfer member and thermal transfer printing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52
US7268928B2Sep 11, 2007
Photo scanner and image forming device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations42
US7173645B2Feb 6, 2007
Optical scan apparatus and color image formation apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations42
US7123395B2Oct 17, 2006
Optical scanner and image formation apparatus including the optical scanner
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations37
HITACHI LTD
3 patentsUS6030726AFeb 29, 2000
Lithium secondary battery having negative electrode of carbon material which bears metals
HITACHI LTD109 citations97
US4478704AOct 23, 1984
Gas detection device
HITACHI LTD20 citations81
US6869713B2Mar 22, 2005
Fuel cell, fuel cell generator, and equipment using the same
HITACHI LTD8 citations71