Image forming apparatus including a plurality of doors that are opened and closed
US-12416895-B2 · Sep 16, 2025 · US
This page is not indexed by search engines while we improve data quality.
Doi Shigeo patents
Doi Shigeo is listed as an inventor on 25 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Doi Shigeo |
| Total patents | 25 |
| First publication | Jan 1, 2015 |
| Latest publication | Sep 16, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Image forming apparatus to prevent air duct bending
US-12386309-B2 · Aug 12, 2025 · US
Sorting station
US-2025214778-A1 · Jul 3, 2025 · US
Image forming apparatus
US-2024345532-A1 · Oct 17, 2024 · US
Image forming apparatus
US-12078956-B2 · Sep 3, 2024 · US
Image forming apparatus
US-2024280938-A1 · Aug 22, 2024 · US
Automated storage system and storage selection method
US-2023410035-A1 · Dec 21, 2023 · US
Image forming apparatus and image forming system
US-11796932-B2 · Oct 24, 2023 · US
Image forming apparatus
US-2023251602-A1 · Aug 10, 2023 · US
Image forming apparatus to cool a circuit board inside a duct
US-11675310-B2 · Jun 13, 2023 · US
Recent patents
Latest publications not already listed above.
Image forming apparatus and image forming system
US-2022350270-A1 · Nov 3, 2022 · US
Image forming apparatus
US-2022187764-A1 · Jun 16, 2022 · US
Cutting apparatus and image forming apparatus
US-11117773-B2 · Sep 14, 2021 · US
Cutting apparatus and image forming apparatus
US-2020216282-A1 · Jul 9, 2020 · US
Cutting apparatus and image forming apparatus
US-10676305-B2 · Jun 9, 2020 · US
Sheet cutting apparatus
US-10364121-B2 · Jul 30, 2019 · US
Damper device and image forming apparatus
US-10073406-B2 · Sep 11, 2018 · US
Image forming apparatus having a damper unit which regulates movement of a door unit
US-10025259-B2 · Jul 17, 2018 · US
Cutting apparatus and image forming apparatus
US-2017341895-A1 · Nov 30, 2017 · US
Sheet cutting apparatus
US-2017341898-A1 · Nov 30, 2017 · US
Image forming apparatus
US-9766586-B2 · Sep 19, 2017 · US
Image forming apparatus
US-2016102488-A1 · Apr 14, 2016 · US
Image forming apparatus
US-2016098007-A1 · Apr 7, 2016 · US
Damper device and image forming apparatus
US-2016018780-A1 · Jan 21, 2016 · US
Image forming apparatus
US-2015001794-A1 · Jan 1, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Canon Kk | 23 |
| Murata Machinery Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G03G21/1633 | 10 |
| G03G2215/0132 | 6 |
| G03G21/206 | 6 |
| B26D7/1854 | 6 |
| G03G2215/00814 | 6 |