Inventor · disambiguated record
Kohei Wakatsu
Also filed as: WAKATSU KOHEI
37 granted patents·3 pending applications·75 citations·filing 2016–2025
96Inventor score
Files withCANON KK40
Top patents by PatentIndex Score
40 records- 0198US11442385B2Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatusCANON KK·Filed 2021·Granted Sep 13, 2022·4 cites·11 claims
- 0298US11092916B2Image forming apparatus including a plurality of heat generating elementsCANON KK·Filed 2020·Granted Aug 17, 2021·7 cites·12 claims
- 0398US11073778B2Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatusCANON KK·Filed 2020·Granted Jul 27, 2021·6 cites·17 claims
- 0497US11281135B2Fixing apparatus switching heat generation members and image forming apparatusCANON KK·Filed 2021·Granted Mar 22, 2022·4 cites·23 claims
- 0597US11194272B2Fixing apparatus having a nip area, and image forming apparatusCANON KK·Filed 2020·Granted Dec 7, 2021·4 cites·18 claims
- 0696US11774891B2Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatusCANON KK·Filed 2022·Granted Oct 3, 2023·2 cites·11 claims
- 0795US11669032B2Fixing apparatus having a nip area, and image forming apparatusCANON KK·Filed 2021·Granted Jun 6, 2023·2 cites·22 claims
- 0895US9915897B2Fixing deviceCANON KK·Filed 2016·Granted Mar 13, 2018·10 cites·9 claims
- 0994US10216130B2Heating rotating member and heating apparatusCANON KK·Filed 2016·Granted Feb 26, 2019·8 cites·22 claims
- 1094US2025390043A1Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1193US10152007B2Fixing member, fixing device having fixing member, and method of manufacturing fixing member having overlapping heat generating stripsCANON KK·Filed 2017·Granted Dec 11, 2018·4 cites·18 claims
- 1292US10503105B2Fixing apparatus having a tubular film that includes a low resistance layer formed in a heat generating layerCANON KK·Filed 2019·Granted Dec 10, 2019·5 cites·21 claims
- 1392US2025370384A1Fixing device provided with heater and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1491US11221575B2Image forming apparatus including a plurality of heat generating elementsCANON KK·Filed 2020·Granted Jan 11, 2022·2 cites·26 claims
- 1591US10558153B2Fixing device that controls electrical power supplied to a film based on a difference between detection temperature values output by a first temperature detecting member and a second temperature detecting memberCANON KK·Filed 2017·Granted Feb 11, 2020·4 cites·4 claims
- 1690US10310424B2Fixing device that alleviates a physical load on non-heat-generating regions of a heat generating layer of a fixing filmCANON KK·Filed 2017·Granted Jun 4, 2019·4 cites·23 claims
- 1789US11204571B2Heating apparatus including a plurality of heat generating elements, fixing apparatus, and image forming apparatusCANON KK·Filed 2020·Granted Dec 21, 2021·2 cites·15 claims
- 1889US10921737B2Fixing apparatus switching heat generation members and image forming apparatusCANON KK·Filed 2020·Granted Feb 16, 2021·2 cites·21 claims
- 1987US10838336B2Fixing device and image forming apparatus that control power supply to heat generation membersCANON KK·Filed 2020·Granted Nov 17, 2020·2 cites·14 claims
- 2087US2025271794A1Fixing apparatus having a nip area, and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2186US11507001B2Image forming apparatus including a plurality of heat generating elementsCANON KK·Filed 2021·Granted Nov 22, 2022·1 cites·14 claims
- 2286US10488794B2Image forming apparatus that switches power supply to plurality of heating elementsCANON KK·Filed 2018·Granted Nov 26, 2019·2 cites·10 claims
- 2383US12416886B2Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatusCANON KK·Filed 2023·Granted Sep 16, 2025·0 cites·18 claims
- 2482US12405558B2Fixing device provided with heater and image forming apparatusCANON KK·Filed 2024·Granted Sep 2, 2025·0 cites·19 claims
- 2580US12321114B2Fixing apparatus having a nip area, and image forming apparatusCANON KK·Filed 2023·Granted Jun 3, 2025·0 cites·5 claims
- 2678US12468245B2Fixing unit with a film regulating surface disposed upstream of the center of a nip portion and image forming apparatusCANON KK·Filed 2023·Granted Nov 11, 2025·0 cites·12 claims
- 2776US12001157B2Fixing device provided with heater and image forming apparatusCANON KK·Filed 2022·Granted Jun 4, 2024·0 cites·20 claims
- 2874US12038703B2Fixing unit and image forming apparatusCANON KK·Filed 2023·Granted Jul 16, 2024·0 cites·8 claims
- 2970US11709446B2Fixing unit and image forming apparatusCANON KK·Filed 2022·Granted Jul 25, 2023·0 cites·22 claims
- 3070US11531294B2Image forming apparatus including a plurality of heat generating elementsCANON KK·Filed 2021·Granted Dec 20, 2022·0 cites·25 claims
- 3169US10884361B2Image forming apparatus that switches power supply to plurality of heating elementsCANON KK·Filed 2019·Granted Jan 5, 2021·0 cites·8 claims
- 3268US10474074B2Film for use in fixing device and fixing device with filmCANON KK·Filed 2019·Granted Nov 12, 2019·0 cites·17 claims
- 3366US10591856B2Roller with filler bundle in elastic layer and fixing deviceCANON KK·Filed 2019·Granted Mar 17, 2020·0 cites·12 claims
- 3461US10209655B2Film for use in fixing device and fixing device with filmCANON KK·Filed 2017·Granted Feb 19, 2019·0 cites·9 claims
- 3557US12481236B2Heating apparatus and image forming apparatusCANON KK·Filed 2023·Granted Nov 25, 2025·0 cites·12 claims
- 3657US11048198B2Image forming apparatusCANON KK·Filed 2019·Granted Jun 29, 2021·0 cites·17 claims
- 3757US10852677B2Film used for fixing device and fixing device including the filmCANON KK·Filed 2018·Granted Dec 1, 2020·0 cites·16 claims
- 3853US11835896B2Fixing device provided with heater and image forming apparatusCANON KK·Filed 2022·Granted Dec 5, 2023·0 cites·21 claims
- 3953US10254687B2Fixing apparatus and image forming apparatus that maintain a pressing force between a contact member and a heat rotating memberCANON KK·Filed 2018·Granted Apr 9, 2019·0 cites·16 claims
- 4047US11835909B2Image forming apparatus including heater powered with cycle-switched current and fixing device including the heaterCANON KK·Filed 2022·Granted Dec 5, 2023·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →