Inventor
NUMATA TETSUYA
JP65 patents
⚠️ This page may combine multiple inventors who share the name “NUMATA TETSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
42 patentsUSD863419SOct 15, 2019
Flange coupling for process cartridge for image forming apparatus
CANON KK34 citations94
USD845384SApr 9, 2019
Process cartridge for image forming apparatus
CANON KK17 citations94
US11294299B2Apr 5, 2022
Cartridge used in image forming apparatus
CANON KK6 citations86
US11112753B2Sep 7, 2021
Cartridge with a sheet to remove matter from a surface of a photosensitive drum
CANON KK7 citations84
US9471031B2Oct 18, 2016
Image forming apparatus with separate support members for removable cartridges
CANON KK8 citations84
US9442457B2Sep 13, 2016
Image forming apparatus with removable process units
CANON KK9 citations84
US9417604B2Aug 16, 2016
Image forming apparatus
CANON KK11 citations84
US11709438B2Jul 25, 2023
Cartridge used in image forming apparatus
CANON KK4 citations75
US12153355B2Nov 26, 2024
Cartridge used in image forming apparatus
CANON KK1 citations73
US11480916B2Oct 25, 2022
Cartridge having toner removing sheet in contact with photosensitive drum
CANON KK3 citations73
US11435689B2Sep 6, 2022
Cartridge
CANON KK3 citations73
US11209773B2Dec 28, 2021
Cartridge and image forming apparatus
CANON KK2 citations73
USD889415SJul 7, 2020
Process cartridge for image forming apparatus
CANON KK2 citations73
US10606210B2Mar 31, 2020
Development device, process cartridge, and image forming apparatus
CANON KK1 citations73
USD862586SOct 8, 2019
Photosensitive drum for process cartridge for image forming apparatus
CANON KK2 citations73
USD862585SOct 8, 2019
Side cover for process cartridge for image forming apparatus
CANON KK2 citations73
US9026001B2May 5, 2015
Image bearing member unit and image forming apparatus
CANON KK4 citations73
US12487556B2Dec 2, 2025
Cartridge and image forming apparatus
CANON KK0 citations63
US12158722B2Dec 3, 2024
Cartridge and image forming apparatus
CANON KK0 citations63
US11733644B2Aug 22, 2023
Cartridge and image forming apparatus
CANON KK0 citations63
US9377752B2Jun 28, 2016
Image forming apparatus with image bearing member protection
CANON KK2 citations63
US9146526B2Sep 29, 2015
Unit, cleaning unit, process cartridge, and image forming apparatus
CANON KK2 citations63
US12554214B2Feb 17, 2026
Developing cartridge having a sheet member provided at end portion of a developing roller
CANON KK0 citations62
US12405565B2Sep 2, 2025
Cartridge including a developer storage unit for storing developer
CANON KK0 citations62
US12117763B2Oct 15, 2024
Development device, process cartridge, and image forming apparatus
CANON KK0 citations62
US11841647B2Dec 12, 2023
Cartridge and developing cartridge including a frame and sheet member provided at end side of the frame
CANON KK0 citations62
US11762326B2Sep 19, 2023
Cartridge
CANON KK1 citations62
USD993925SAug 1, 2023
Process cartridge for image forming apparatus
CANON KK0 citations62
US11703795B2Jul 18, 2023
Development device, process cartridge, and image forming apparatus
CANON KK0 citations62
US11287772B2Mar 29, 2022
Development device, process cartridge, and image forming apparatus
CANON KK0 citations62
USD862584SOct 8, 2019
Side cover for process cartridge for image forming apparatus
CANON KK1 citations62
US10248077B2Apr 2, 2019
Cartridge and cover member
CANON KK1 citations62
US10719030B2Jul 21, 2020
Manufacturing method of cartridge and cartridge
CANON KK0 citations52
US10691043B2Jun 23, 2020
Supporting unit, developer container, developing device, photosensitive member unit, process cartridge and manufacturing method of the supporting unit
CANON KK0 citations52
US10551767B2Feb 4, 2020
Manufacturing method for developer container, developer container, developing apparatus, and process cartridge
CANON KK0 citations52
USD862587SOct 8, 2019
Coupling for process cartridge for image forming apparatus
CANON KK0 citations52
US10401786B2Sep 3, 2019
Image forming apparatus and cartridge used for the same
CANON KK0 citations52
US10254710B2Apr 9, 2019
Development device, process cartridge, and image forming apparatus
CANON KK0 citations52
US10222736B2Mar 5, 2019
Image forming apparatus
CANON KK0 citations52
US10203655B2Feb 12, 2019
Image forming apparatus
CANON KK0 citations52
US9996050B2Jun 12, 2018
Image forming apparatus and cartridge used for the same
CANON KK0 citations52
US9971281B2May 15, 2018
Developer container, developing device, process cartridge, and image forming apparatus
CANON KK0 citations52
NUMATA TETSUYA
4 patentsUS8521060B2Aug 27, 2013
Cartridge with a protecting member and a sealing member for sealing a developer supply opening
NUMATA TETSUYA33 citations92
US8270879B2Sep 18, 2012
Electrophotographic image forming apparatus
NUMATA TETSUYA22 citations92
US8478161B2Jul 2, 2013
Electrophotographic image forming apparatus with locking member for spacing components of the apparatus and preventing movement of components of the apparatus
NUMATA TETSUYA6 citations72
US8472838B2Jun 25, 2013
Electrophotographic image forming apparatus with spacing member for spacing components of the apparatus
NUMATA TETSUYA5 citations72
UENO TAKAHITO
1 patentUNEME TETSUSHI
1 patentHAYASHI NAOKI
1 patentTAKEYAMA YOSHIFUMI
1 patentShowing the top 50 of 65 patents by PatentIndex Score.