Inventor
HAMADA KAORU
JP45 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA KAORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JUJO PAPER CO LTD
25 patentsUS5710094AJan 20, 1998
Reversible multi-color thermal recording medium
JUJO PAPER CO LTD135 citations98
US6410479B1Jun 25, 2002
Thermally sensitive recording medium
JUJO PAPER CO LTD21 citations92
US6093678AJul 25, 2000
Spontaneously color changing type thermal sensitive recording medium
JUJO PAPER CO LTD26 citations91
US5811369ASep 22, 1998
Thermal recording medium
JUJO PAPER CO LTD17 citations84
US5665675ASep 9, 1997
Aminobenzenesulfonamide derivative and recording medium using the same
JUJO PAPER CO LTD17 citations74
US5661100AAug 26, 1997
Urea (thiourea) derivative and thermal recording sheet using the same
JUJO PAPER CO LTD7 citations71
US5811368ASep 22, 1998
Thermal sensitive recording medium
JUJO PAPER CO LTD9 citations70
US5733843AMar 31, 1998
Thermal sensitive recording sheet
JUJO PAPER CO LTD6 citations63
US6258747B1Jul 10, 2001
Thermally sensitive recording medium
JUJO PAPER CO LTD3 citations62
US5707778AJan 13, 1998
Optical recording medium
JUJO PAPER CO LTD6 citations62
US6677275B1Jan 13, 2004
Thermal recording material
JUJO PAPER CO LTD2 citations61
US6645910B1Nov 11, 2003
Thermally sensitive recording medium
JUJO PAPER CO LTD6 citations61
US7312176B2Dec 25, 2007
Thermally sensitive recording medium
JUJO PAPER CO LTD6 citations59
US7655287B2Feb 2, 2010
Inkjet recording medium
JUJO PAPER CO LTD4 citations58
US6407036B1Jun 18, 2002
Thermal recording material
JUJO PAPER CO LTD3 citations58
US6284706B1Sep 4, 2001
Thermally sensitive recording medium
JUJO PAPER CO LTD0 citations52
US7378374B2May 27, 2008
Thermally sensitive recording medium
JUJO PAPER CO LTD0 citations51
US7232791B2Jun 19, 2007
Multicolored thermally recording medium
JUJO PAPER CO LTD0 citations51
US6579828B1Jun 17, 2003
Multi chromatic thermally sensitive recording medium
JUJO PAPER CO LTD1 citations51
US6551961B1Apr 22, 2003
Thermal recording material
JUJO PAPER CO LTD0 citations51
US7384891B2Jun 10, 2008
Thermal recording medium
JUJO PAPER CO LTD0 citations50
US6432874B1Aug 13, 2002
Thermally sensitive recording medium
JUJO PAPER CO LTD1 citations50
US7476642B2Jan 13, 2009
Thermally sensitive recording medium
JUJO PAPER CO LTD0 citations49
US5753586AMay 19, 1998
Thermal sensitive recording sheet
JUJO PAPER CO LTD0 citations41
US6303540B1Oct 16, 2001
Thermally sensitive recording medium
JUJO PAPER CO LTD0 citations40
CANON KK
14 patentsUS10447876B2Oct 15, 2019
Image reading apparatus
CANON KK2 citations73
US10148851B2Dec 4, 2018
Image reading apparatus and image reading method
CANON KK4 citations73
US10447890B2Oct 15, 2019
Image reading apparatus with shading correction
CANON KK4 citations70
US12438994B2Oct 7, 2025
Image reading apparatus caused to read a holding member placed on a reading area, the holding member holding receipts and extracting edges of the receipts from a single read image
CANON KK0 citations62
US12003684B2Jun 4, 2024
Image reading apparatus comprising a processor configured to extract an edge in an area corresponding to a holding member as an edge of an image corresponding to the document
CANON KK0 citations62
US11528367B2Dec 13, 2022
Image reading apparatus indicating reading for OCR processing failure based on amount of document tilt
CANON KK1 citations62
US10536599B2Jan 14, 2020
Original reading apparatus
CANON KK1 citations62
US10477061B2Nov 12, 2019
Image forming apparatus with two-sided copying and variable image data transfer clock frequency
CANON KK1 citations62
US12348690B2Jul 1, 2025
Image reading apparatus and image reading method
CANON KK0 citations52
US11459195B2Oct 4, 2022
Original reading apparatus
CANON KK0 citations52
US11330127B2May 10, 2022
Image reading apparatus and image forming apparatus
CANON KK0 citations52
US10261732B2Apr 16, 2019
Image forming apparatus having double-sided printing and control method of the same
CANON KK0 citations52
US10154155B2Dec 11, 2018
Image reading apparatus capable of determining opening-closing state of original conveyance device and image forming apparatus equipped with image reading apparatus
CANON KK1 citations50
US10289358B2May 14, 2019
Image forming apparatus that improves FCOT
CANON KK0 citations40