Inventor
SATO MITSUHIRO
JP89 patents
⚠️ This page may combine multiple inventors who share the name “SATO MITSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
18 patentsUS11204566B2Dec 21, 2021
Image forming apparatus and developing cartridge
CANON KK6 citations84
US11977344B2May 7, 2024
Image forming apparatus and image forming system
CANON KK5 citations75
US12066769B2Aug 20, 2024
Toner container having a shutter and an engaging portion exposed from the shutter
CANON KK2 citations73
US11789378B2Oct 17, 2023
Image forming apparatus and developing cartridge
CANON KK3 citations73
US12487543B2Dec 2, 2025
Toner container and image forming system
CANON KK0 citations63
US12124190B2Oct 22, 2024
Toner container including guiding portion with a guiding surface
CANON KK1 citations63
US12105441B2Oct 1, 2024
Toner container and image forming system
CANON KK0 citations63
US12547098B2Feb 10, 2026
Toner container and image forming system
CANON KK0 citations62
US12443126B2Oct 14, 2025
Image forming apparatus and developing cartridge
CANON KK0 citations62
US12416880B2Sep 16, 2025
Toner container
CANON KK0 citations62
US12346041B2Jul 1, 2025
Image forming apparatus and image forming system
CANON KK0 citations62
USD1081786SJul 1, 2025
Toner pack
CANON KK0 citations62
USD1081785SJul 1, 2025
Toner pack
CANON KK0 citations62
US12228866B2Feb 18, 2025
Image forming apparatus and developing cartridge
CANON KK0 citations62
USD1043812SSep 24, 2024
Toner pack
CANON KK0 citations62
US12092973B2Sep 17, 2024
Image forming apparatus
CANON KK1 citations62
USD1035769SJul 16, 2024
Supplying port member for toner pack
CANON KK0 citations62
USD1031832SJun 18, 2024
Supplying port member for toner pack
CANON KK0 citations62
OLYMPUS OPTICAL CO
11 patentsUS5739962AApr 14, 1998
Lens mount
OLYMPUS OPTICAL CO134 citations99
US6324019B1Nov 27, 2001
Lens housing having aperture device
OLYMPUS OPTICAL CO75 citations96
US5661609AAug 26, 1997
Lens mount
OLYMPUS OPTICAL CO27 citations93
US6661589B2Dec 9, 2003
Lens barrel
OLYMPUS OPTICAL CO25 citations92
US6411448B2Jun 25, 2002
Lens barrel
OLYMPUS OPTICAL CO15 citations92
US6341901B1Jan 29, 2002
Photographing lens of a camera having a mask for blocking off noise light which generates in relation to a non-circular lens
OLYMPUS OPTICAL CO50 citations92
US6262853B1Jul 17, 2001
Lens barrel having deformable member
OLYMPUS OPTICAL CO34 citations92
US6157501ADec 5, 2000
Lens holding structure
OLYMPUS OPTICAL CO34 citations92
US5933285AAug 3, 1999
Lens barrel
OLYMPUS OPTICAL CO36 citations92
US6556362B2Apr 29, 2003
Lens barrel
OLYMPUS OPTICAL CO2 citations63
US5777802AJul 7, 1998
Lens barrel with a cam mechanism comprised of plastic material
OLYMPUS OPTICAL CO3 citations63
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
9 patentsUS5848407ADec 8, 1998
Hypertext document retrieving apparatus for retrieving hypertext documents relating to each other
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD237 citations98
US6212517B1Apr 3, 2001
Keyword extracting system and text retrieval system using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD162 citations97
US6154737ANov 28, 2000
Document retrieval system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD218 citations97
US6298344B1Oct 2, 2001
Document searching apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD80 citations95
US7003533B2Feb 21, 2006
File management method, content recording/playback apparatus and content recording program
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations92
US7269741B2Sep 11, 2007
Recording apparatus, medium, method, and related computer program
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations91
US6424963B1Jul 23, 2002
Document retrieval having retrieval conditions that shuffles documents in a sequence of occurrence
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US6922707B2Jul 26, 2005
File management method and content recording/playback apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US7428992B2Sep 30, 2008
Secure device and system for issuing IC cards
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations72
FUJITSU LTD
3 patentsUS6567505B1May 20, 2003
Method and apparatus for camp-on service control
FUJITSU LTD161 citations94
US6484128B1Nov 19, 2002
Data processing system with configuration management capability based on compatibilities among hardware modules
FUJITSU LTD50 citations89
US7987279B2Jul 26, 2011
Control-relay apparatus
FUJITSU LTD7 citations84
MURATA MANUFACTURING CO
3 patentsNGK INSULATORS LTD
1 patentKOBAYASHI INDUSTRY CO LTD
1 patentPANASONIC CORP
1 patentOLYMPUS CORP
1 patentKUBOTA LTD
1 patentKOBE STEEL LTD
1 patentShowing the top 50 of 89 patents by PatentIndex Score.