Inventor · disambiguated record
Kazuaki Ooka
Also filed as: OOKA KAZUAKI
40 granted patents·3 pending applications·46 citations·filing 2018–2025
96Inventor score
Technology areasG03G
Files withBROTHER IND LTD43
Top patents by PatentIndex Score
43 records- 0197US11693331B2Developer cartridgeBROTHER IND LTD·Filed 2022·Granted Jul 4, 2023·4 cites·16 claims
- 0297US11249418B2Developer cartridgeBROTHER IND LTD·Filed 2020·Granted Feb 15, 2022·4 cites·17 claims
- 0396US11435690B2Cartridge including holder for holding electrical contact surface and method of recycling cartridgeBROTHER IND LTD·Filed 2021·Granted Sep 6, 2022·4 cites·24 claims
- 0495US11693353B2Cartridge including holder for holding electrical contact surface and method of recycling cartridgeBROTHER IND LTD·Filed 2022·Granted Jul 4, 2023·2 cites·21 claims
- 0595US10520853B2Developer cartridgeBROTHER IND LTD·Filed 2018·Granted Dec 31, 2019·6 cites·33 claims
- 0695US10488813B2Drum unitBROTHER IND LTD·Filed 2018·Granted Nov 26, 2019·6 cites·39 claims
- 0794US12032326B2Cartridge including holder for holding electrical contact surface and method of recycling cartridgeBROTHER IND LTD·Filed 2023·Granted Jul 9, 2024·1 cites·15 claims
- 0894US10859942B2Developer cartridgeBROTHER IND LTD·Filed 2019·Granted Dec 8, 2020·4 cites·28 claims
- 0993US11320779B2Drum unitBROTHER IND LTD·Filed 2021·Granted May 3, 2022·2 cites·13 claims
- 1091US11561502B2Image forming apparatus including support frame with ground plate and contact springBROTHER IND LTD·Filed 2021·Granted Jan 24, 2023·2 cites·16 claims
- 1191US10942485B2Drum unitBROTHER IND LTD·Filed 2020·Granted Mar 9, 2021·2 cites·18 claims
- 1291US10725427B2Drum unitBROTHER IND LTD·Filed 2019·Granted Jul 28, 2020·2 cites·17 claims
- 1390US10739698B2Developing cartridge including casing and first and second agitators for agitating toner accommodated in casingBROTHER IND LTD·Filed 2019·Granted Aug 11, 2020·2 cites·21 claims
- 1488US12498650B2Developing cartridge including casing and first and second agitators for agitating toner accommodated in casingBROTHER IND LTD·Filed 2024·Granted Dec 16, 2025·0 cites·21 claims
- 1588US2025181026A1Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 1687US12197168B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2024·Granted Jan 14, 2025·0 cites·34 claims
- 1787US2025334923A1Cartridge including holder for holding electrical contact surface and method of recycling cartridgeBROTHER IND LTD·Filed 2025·Application pending·0 cites
- 1885US12332598B2Cartridge including holder for holding electrical contact surface and method of recycling cartridgeBROTHER IND LTD·Filed 2024·Granted Jun 17, 2025·0 cites·16 claims
- 1984US12032329B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2023·Granted Jul 9, 2024·0 cites·36 claims
- 2084US2024272579A1Drum unitBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 2183US12174557B2Developer cartridgeBROTHER IND LTD·Filed 2023·Granted Dec 24, 2024·0 cites·16 claims
- 2280US12147171B2Developing cartridge including casing and first and second agitators for agitating toner accommodated in casingBROTHER IND LTD·Filed 2022·Granted Nov 19, 2024·0 cites·19 claims
- 2379US12032307B2Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridgeBROTHER IND LTD·Filed 2022·Granted Jul 9, 2024·0 cites·20 claims
- 2479US11921457B2Drum unitBROTHER IND LTD·Filed 2022·Granted Mar 5, 2024·0 cites·8 claims
- 2579US11714378B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2022·Granted Aug 1, 2023·0 cites·42 claims
- 2678US10649397B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2019·Granted May 12, 2020·0 cites·42 claims
- 2776US11537062B2Developing cartridge including casing and first and second agitators for agitating toner accommodated in casingBROTHER IND LTD·Filed 2021·Granted Dec 27, 2022·0 cites·16 claims
- 2876US11256208B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2021·Granted Feb 22, 2022·0 cites·19 claims
- 2975US10684584B1Development deviceBROTHER IND LTD·Filed 2019·Granted Jun 16, 2020·1 cites·19 claims
- 3075US10459399B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2018·Granted Oct 29, 2019·0 cites·36 claims
- 3173US11143981B2Developing cartridge including casing and first and second agitators for agitating toner accommodated in casingBROTHER IND LTD·Filed 2021·Granted Oct 12, 2021·0 cites·16 claims
- 3273US10962923B2Developing cartridge including shaft and cam having cam surfaceBROTHER IND LTD·Filed 2020·Granted Mar 30, 2021·0 cites·36 claims
- 3372US11573503B2Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridgeBROTHER IND LTD·Filed 2020·Granted Feb 7, 2023·0 cites·12 claims
- 3472US10901340B2Developing cartridge including casing and first and second agitators for agitating toner accommodated in casingBROTHER IND LTD·Filed 2020·Granted Jan 26, 2021·0 cites·21 claims
- 3571USD989856SToner cartridgeBROTHER IND LTD·Filed 2021·Granted Jun 20, 2023·4 cites·1 claims
- 3670US10890857B2Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridgeBROTHER IND LTD·Filed 2019·Granted Jan 12, 2021·0 cites·12 claims
- 3767US11204579B2Drawer including photosensitive drum and frame, and image forming apparatus provided with the sameBROTHER IND LTD·Filed 2020·Granted Dec 21, 2021·0 cites·27 claims
- 3867US10754289B2Drawer including photosensitive drum and frame, and image forming apparatus provided with the sameBROTHER IND LTD·Filed 2019·Granted Aug 25, 2020·0 cites·25 claims
- 3958US11415912B2Developing cartridge including agitator configured to contact peripheral surface of supply rollerBROTHER IND LTD·Filed 2021·Granted Aug 16, 2022·0 cites·15 claims
- 4050US11454923B2Developing cartridge including cam movable relative to casing between first position and second positionBROTHER IND LTD·Filed 2021·Granted Sep 27, 2022·0 cites·26 claims
- 4147US11061357B2Image forming apparatus with rotation-controllable photosensitive drum and movable developing rollerBROTHER IND LTD·Filed 2019·Granted Jul 13, 2021·0 cites·6 claims
- 4245US10890858B2Development deviceBROTHER IND LTD·Filed 2019·Granted Jan 12, 2021·0 cites·11 claims
- 4343US11385563B2Developing cartridge having first inclined surface movable together with first shaft, and second inclined surface movable together with second shaftBROTHER IND LTD·Filed 2021·Granted Jul 12, 2022·0 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →