Inventor
DOI YOHEI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “DOI YOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA TEC KK
20 patentsUS11927901B2Mar 12, 2024
Image forming apparatus
TOSHIBA TEC KK2 citations73
US11281132B2Mar 22, 2022
Image forming apparatus and heating method
TOSHIBA TEC KK1 citations73
US11275330B2Mar 15, 2022
Image forming apparatus having a fixing unit and heating control method
TOSHIBA TEC KK3 citations73
US11150582B2Oct 19, 2021
Image forming apparatus and image fixing method
TOSHIBA TEC KK1 citations73
US10990044B2Apr 27, 2021
Image forming apparatus having a fixing unit and heating control method
TOSHIBA TEC KK3 citations73
US12591192B2Mar 31, 2026
Image forming apparatus and heating method
TOSHIBA TEC KK0 citations62
US12498658B2Dec 16, 2025
Heating device with a heat conductor including portions having different thicknesses
TOSHIBA TEC KK0 citations62
US12393142B2Aug 19, 2025
Image forming apparatus
TOSHIBA TEC KK0 citations62
US12124196B2Oct 22, 2024
Image forming apparatus and image fixing method
TOSHIBA TEC KK0 citations62
US12124195B2Oct 22, 2024
Image forming apparatus having a fixing unit and heating control method
TOSHIBA TEC KK0 citations62
US12055878B2Aug 6, 2024
Heating device with a heat conductor including portions having different thicknesses
TOSHIBA TEC KK0 citations62
US11868067B2Jan 9, 2024
Image forming apparatus and heating method
TOSHIBA TEC KK0 citations62
US11809108B2Nov 7, 2023
Image forming apparatus and image fixing method
TOSHIBA TEC KK0 citations62
US11774887B2Oct 3, 2023
Image forming apparatus having a fixing unit and heating control method
TOSHIBA TEC KK0 citations62
US11669033B2Jun 6, 2023
Heating device with a heat conductor including portions having different thicknesses
TOSHIBA TEC KK0 citations62
US11385579B2Jul 12, 2022
Image forming apparatus
TOSHIBA TEC KK0 citations62
US11307522B2Apr 19, 2022
Heating device with a heat conductor including portions having different thicknesses
TOSHIBA TEC KK0 citations62
US11106164B2Aug 31, 2021
Heating device including a heat conductor having a surface with a groove
TOSHIBA TEC KK0 citations62
US11073776B2Jul 27, 2021
Image forming apparatus, image forming method and non-transitory recording medium
TOSHIBA TEC KK0 citations62
US11415926B1Aug 16, 2022
Fixing device and image forming apparatus
TOSHIBA TEC KK0 citations52
TOSHIBA KK
9 patentsUS7672632B2Mar 2, 2010
Fixing apparatus using induction heating system for image forming apparatus
TOSHIBA KK8 citations84
US9592696B2Mar 14, 2017
Power control device, power control method, and recording medium
TOSHIBA KK2 citations73
US7925197B2Apr 12, 2011
Fixing apparatus of image forming apparatus
TOSHIBA KK6 citations73
US8050610B2Nov 1, 2011
Fixing apparatus of image forming apparatus
TOSHIBA KK2 citations62
US8036556B2Oct 11, 2011
Fixing device having an electric power control system to an induction heating coil for image forming apparatus
TOSHIBA KK4 citations62
US7792445B2Sep 7, 2010
Drive detection device for fixing device
TOSHIBA KK4 citations62
US7787789B2Aug 31, 2010
Fixing device for image forming apparatus
TOSHIBA KK6 citations62
US9975369B2May 22, 2018
Power control device, power control method, and recording medium
TOSHIBA KK0 citations52
US7613410B2Nov 3, 2009
Image formation apparatus and heat roller adjustment support method
TOSHIBA KK0 citations52