Inventor
KAZUTOSHI NAKAMURA
Inventor
JP
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography69%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables10%
F16HGearing7%
H10DInorganic electric semiconductor devices7%
B41JTypewriters3%
H01LSemiconductor devices3%
PatentTitleYear
12,588,263Insulated gate bipolar transistor (IGBT) semiconductor device with reduced turn-on loss202612,578,676Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing202612,566,401Image forming apparatus having process cartridge with electrical contacts and memory contact facing outward202612,411,447Sheet conveyance device and image forming apparatus202512,282,290Process cartridge including drum cartridge having first holder, developing cartridge having second holder, and plate for connecting first holder and second holder to each other202512,259,675Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder202512,210,300Developing cartridge including movable plate for moving holder holding electrical contact surface202512,197,166Image forming apparatus202512,181,825Printer202412,092,991Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing202412,072,006Developing device202412,066,784Image forming apparatus202411,914,323Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing202411,886,129Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridge202411,762,312Developing cartridge including movable plate for moving holder holding electrical contact surface202311,740,583Image forming apparatus202311,676,995Semiconductor device202311,500,321Image-forming apparatus including structure for switching transmission state of driving force to photosensitive drum202211,474,473Image forming apparatus including drum cartridge having waste toner accumulating unit in which waste toner is accumulated202211,448,289Developing device202211,401,121Sheet tray and image forming device202211,249,438Image forming apparatus2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2026Patents assigned to BROTHER IND LTD (20)· patent assignee history
2022–2026Based in JP· patent location history
2023–2026Patents assigned to TOSHIBA ELECTRONIC DEVICES & STORAGE CORP (2)· patent assignee history
2023–2026Patents assigned to TOSHIBA KK (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BROTHER IND LTD | 20 | 2022–2026 |
| TOSHIBA ELECTRONIC DEVICES & STORAGE CORP | 2 | 2023–2026 |
| TOSHIBA KK | 2 | 2023–2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 22 | 2022–2026 |