Electrophotographic image-forming apparatus and process cartridge
US-2026029743-A1 · Jan 29, 2026 · US
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Kikuchi Yuichi patents
Kikuchi Yuichi is listed as an inventor on 89 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Kikuchi Yuichi |
| Total patents | 89 |
| First publication | Mar 31, 2015 |
| Latest publication | Jan 29, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Electrification device, process cartridge, and electrophotographic image forming apparatus
US-2026016764-A1 · Jan 15, 2026 · US
Process cartridge and process cartridge set
US-12510839-B2 · Dec 30, 2025 · US
Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus
US-12498646-B2 · Dec 16, 2025 · US
Electrophotographic cleaning blade, process cartridge, electrophotographic image forming apparatus and urethane molded product
US-2025362638-A1 · Nov 27, 2025 · US
Electrophotographic cleaning blade, process cartridge and electrophotographic image forming apparatus
US-2025362639-A1 · Nov 27, 2025 · US
Image forming apparatus
US-2025348015-A1 · Nov 13, 2025 · US
Electrophotographic member, process cartridge, and electrophotographic image forming apparatus
US-2025314988-A1 · Oct 9, 2025 · US
Electrophotographic member, process cartridge, and electrophotographic image forming apparatus
US-2025314987-A1 · Oct 9, 2025 · US
Electrophotographic member, process cartridge, and electrophotographic image forming apparatus
US-2025314986-A1 · Oct 9, 2025 · US
Recent patents
Latest publications not already listed above.
Electrophotography cleaning blade, process cartridge, and electrophotographic image forming apparatus
US-2025284239-A1 · Sep 11, 2025 · US
Electro-conductive member, process cartridge, and electrophotographic image forming apparatus
US-12339597-B2 · Jun 24, 2025 · US
Process cartridge and process cartridge set
US-2025181004-A1 · Jun 5, 2025 · US
Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus
US-2025102945-A1 · Mar 27, 2025 · US
Electroconductive member, process cartridge, and electrophotographic image formation device
US-12259674-B2 · Mar 25, 2025 · US
Gas treatment device and gas treatment method
US-2024342337-A1 · Oct 17, 2024 · US
Treatment apparatus using reactive oxygen and treatment method using reactive oxygen
US-2024343572-A1 · Oct 17, 2024 · US
Active oxygen supply device
US-2024343571-A1 · Oct 17, 2024 · US
Device for treatment with activated oxyegen and method for treatment with activated oxygen
US-2024349416-A1 · Oct 17, 2024 · US
Electroconductive member, process cartridge, and electrophotographic image forming apparatus
US-12032331-B2 · Jul 9, 2024 · US
Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatus
US-11971683-B2 · Apr 30, 2024 · US
Height gauge
US-D1008057-S · Dec 19, 2023 · US
Process cartridge and electrophotographic apparatus
US-2023288826-A1 · Sep 14, 2023 · US
Process cartridge and electrophotographic apparatus
US-2023288867-A1 · Sep 14, 2023 · US
Electroconductive member, process cartridge, and electrophotographic image forming apparatus
US-2023280667-A1 · Sep 7, 2023 · US
Active oxygen supply device, device for conducting treatment by active oxygen, and method for conducting treatment by active oxygen
US-2023146111-A1 · May 11, 2023 · US
Sterilization device, sterilization method, active oxygen supply device, and device for treatment with active oxygen
US-2023139536-A1 · May 4, 2023 · US
Electroconductive member, process cartridge, and image forming apparatus
US-11640122-B2 · May 2, 2023 · US
Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming device
US-11586121-B2 · Feb 21, 2023 · US
Electroconductive member, process cartridge, and image forming apparatus
US-2022308495-A1 · Sep 29, 2022 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Canon Kk | 84 |
| Kikuchi Yuichi | 3 |
| Ishii Motohaya | 2 |
| Terui Hiroshi | 2 |
| Shibazaki Tomoyo | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G03G15/0233 | 68 |
| G03G21/1814 | 51 |
| G03G15/1685 | 40 |
| G03G15/0818 | 28 |
| G03G15/02 | 17 |