Inventor
SATO MASAAKI
JP396 patents
⚠️ This page may combine multiple inventors who share the name “SATO MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
40 patentsUS7349657B2Mar 25, 2008
Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method
CANON KK161 citations99
US7224925B2May 29, 2007
Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method
CANON KK185 citations99
US7158736B2Jan 2, 2007
Process cartridge having first and second rotatably coupled frames and electrophotographic image forming apparatus mounting such process cartridge
CANON KK209 citations99
US7149457B2Dec 12, 2006
Process cartridge and electrophotographic image forming apparatus
CANON KK169 citations99
US10168664B2Jan 1, 2019
Process cartridge including protrusion to receive a force for moving a developer roller
CANON KK28 citations98
US9836020B2Dec 5, 2017
Process cartridge with force receiving portion configured to receive a force to move a developing roller
CANON KK35 citations98
US9804560B2Oct 31, 2017
Cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK35 citations98
US9429877B2Aug 30, 2016
Process cartridge and electrophotographic image forming apparatus
CANON KK34 citations98
US9429906B2Aug 30, 2016
Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion
CANON KK54 citations98
US7813668B2Oct 12, 2010
Process cartridge, developing cartridge and electrophotographic image forming apparatus
CANON KK73 citations98
US7720408B2May 18, 2010
Process cartridge, developing cartridge and electrophotographic image forming apparatus
CANON KK77 citations98
US7689146B2Mar 30, 2010
Electrophotographic image forming apparatus and process cartridge
CANON KK63 citations98
US7660550B2Feb 9, 2010
Process cartridge and image forming apparatus
CANON KK61 citations98
US7499663B2Mar 3, 2009
Electrophotographic image forming apparatus and process cartridge
CANON KK79 citations98
US7412193B2Aug 12, 2008
Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method
CANON KK96 citations98
US7218882B2May 15, 2007
Developing device, process cartridge, developer layer regulating member, and developer layer regulating member attaching method
CANON KK70 citations98
US7155141B2Dec 26, 2006
Electrophotographic image forming apparatus
CANON KK169 citations98
US5021837AJun 4, 1991
Apparatus discharged sheet stacking
CANON KK130 citations98
US5951000ASep 14, 1999
Sheet post-processing apparatus
CANON KK46 citations96
US5897250AApr 27, 1999
Sheet processing apparatus
CANON KK86 citations96
US11314199B2Apr 26, 2022
Cartridge, member constituting cartridge, and image forming apparatus
CANON KK8 citations94
US11307529B2Apr 19, 2022
Cartridge, member constituting cartridge, and image forming apparatus
CANON KK8 citations94
US11156954B2Oct 26, 2021
Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion
CANON KK9 citations94
US11131960B2Sep 28, 2021
Cartridge, member constituting cartridge, and image forming apparatus
CANON KK12 citations94
US11067950B2Jul 20, 2021
Cartridge and electrophotographic image forming apparatus
CANON KK17 citations94
US10782647B2Sep 22, 2020
Cartridge and electrophotographic image forming apparatus
CANON KK13 citations94
US10712708B2Jul 14, 2020
Cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK11 citations94
US10678185B2Jun 9, 2020
Cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK11 citations94
US10534313B2Jan 14, 2020
Process cartridge and image forming apparatus
CANON KK12 citations94
US10459402B2Oct 29, 2019
Cartridge and electrophotographic image forming apparatus
CANON KK20 citations94
US10386786B2Aug 20, 2019
Cartridge, member constituting cartridge, and image forming apparatus
CANON KK16 citations94
US10254712B2Apr 9, 2019
Cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK14 citations94
US10228652B2Mar 12, 2019
Cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK18 citations94
US10139777B2Nov 27, 2018
Cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK25 citations94
US9885974B2Feb 6, 2018
Developing cartridge, process cartridge and image forming apparatus
CANON KK20 citations94
US9529298B2Dec 27, 2016
Developing cartridge having a frame rotatably supporting a developing roller
CANON KK24 citations94
US8862022B2Oct 14, 2014
Image forming apparatus and cartridge
CANON KK32 citations94
US10591868B2Mar 17, 2020
Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion
CANON KK10 citations93
US10401788B2Sep 3, 2019
Image forming apparatus including a movable engageable spacing member and process cartridge including a force receiving portion
CANON KK10 citations93
US7983589B2Jul 19, 2011
Developing apparatus, process cartridge, and image forming apparatus
CANON KK27 citations93
OLYMPUS OPTICAL CO
4 patentsUS4423812AJan 3, 1984
Cassette receptacle device
OLYMPUS OPTICAL CO194 citations99
US4602358AJul 22, 1986
Car stereo set
OLYMPUS OPTICAL CO46 citations96
US4388492AJun 14, 1983
Miniature stereo device with extensible speakers
OLYMPUS OPTICAL CO53 citations96
US4237540ADec 2, 1980
Tape recorder with table computer
OLYMPUS OPTICAL CO67 citations96
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
2 patentsUS5555512ASep 10, 1996
Picture processing apparatus for processing infrared pictures obtained with an infrared ray sensor and applied apparatus utilizing the picture processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD106 citations97
US5505057AApr 9, 1996
Pattern classification system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations94
SATO MASAAKI
2 patentsNIPPON TELEGRAPH & TELEPHONE
1 patentAGENCY IND SCIENCE TECHN
1 patentShowing the top 50 of 396 patents by PatentIndex Score.