Inventor
HIROSHI NAKAI
Inventor
JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters40%
G03GElectrography20%
G01FMeasuring volume, volume flow, mass flow or liquid level15%
LOC1010%
H01LSemiconductor devices5%
H10HInorganic light-emitting semiconductor devices having potential barriers5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
PatentTitleYear
12,360,471Process cartridge and image forming apparatus incorporating the same202512,355,012Ceramic-insulated multi-metal substrate structure with integrated coating film for high-performance light-emitting devices202512,045,000Image forming apparatus202411,987,063Handheld printing apparatus202411,958,303Handheld printing apparatus202411,932,034Handheld printing apparatus202411,840,061Handheld printing apparatus202311,833,845Hanheld printing apparatus202311,802,782Ultrasonic flowmeter with a flow path inner wall surface with a draft of a mold for integral molding202311,794,479Inkjet printing apparatus and recovery method202311,761,804Ultrasonic flowmeter having a partition plate dividing the flow path into a measurement flow path and a non-measurement flow path202311,686,604Ultrasonic flow meter having one or more integrally molded partition plates dividing the measurement path and having thinner upstream and downstream edges202311,442,396Cleaning blade, sheet conveyance roller, process cartridge, and image forming apparatus202211,345,154Inkjet printing apparatus and recovery method2022D0945292Flow sensor2022D0937696Flow meter202111,150,604Image forming apparatus with a temperature change suppressor202111,141,979Inkjet printing apparatus and treatment liquid holding unit2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2024Patents assigned to CANON KK (8)· patent assignee history
2021–2023Patents assigned to PANASONIC IP MAN CO LTD (5)· patent assignee history
2021–2025Patents assigned to NAKAI HIROSHI (4)· patent assignee history
2021–2025Patents assigned to RICOH CO LTD (4)· patent assignee history
2021–2024Patents assigned to WATANABE KAZUHIKO (3)· patent assignee history
2021–2025Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 8 | 2021–2024 |
| PANASONIC IP MAN CO LTD | 5 | 2021–2023 |
| NAKAI HIROSHIself | 4 | 2021–2025 |
| RICOH CO LTD | 4 | 2021–2025 |
| WATANABE KAZUHIKO | 3 | 2021–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 18 | 2021–2025 |